diff --git a/assets/js/map.ts b/assets/js/map.ts index d55fa02..5213810 100644 --- a/assets/js/map.ts +++ b/assets/js/map.ts @@ -28,7 +28,6 @@ import type { } from "./types/leaflet-plugins"; import type { APRSMarker } from "./types/marker-extensions"; import type { BaseEventPayload } from "./types/events"; -// Vector grid types are included via the vendor bundle // Leaflet and plugins are loaded globally from vendor bundle // We'll access window.L dynamically when needed instead of storing it at module load time @@ -288,408 +287,11 @@ let MapAPRSMap = { '© OpenStreetMap contributors © CARTO | APRS.me', subdomains: ["a", "b", "c", "d"], }, - osmVector: { - // Using official OpenStreetMap vector tiles - url: "https://vector.openstreetmap.org/shortbread_v1/{z}/{x}/{y}.mvt", - attribution: - '© OpenStreetMap contributors | APRS.me', - isVector: true, - maxZoom: 14, // OSM vector tiles only go to zoom 14 - }, }; - // Try to use vector tiles if L.vectorGrid is available (loaded from CDN) - let tileLayer: L.Layer; - - // Check if L.vectorGrid is available and if we should use vector tiles - console.log('Checking for L.vectorGrid:', typeof (L as any).vectorGrid); - console.log('Checking for L.vectorGrid.protobuf:', typeof (L as any).vectorGrid?.protobuf); - - // Use vector tiles for better performance and scalability - const useVectorTiles = false; - - if (useVectorTiles && (L as any).vectorGrid && (L as any).vectorGrid.protobuf) { - try { - console.log('L.vectorGrid.protobuf is available, attempting to use OpenStreetMap vector tiles'); - - const vectorProvider = tileProviders.osmVector; - - // Style configuration to match OSM raster tiles appearance - // Using Shortbread schema layer names - const vectorTileStyles = { - // Background layer - 'background': { - fill: true, - fillColor: '#f2efe9', - fillOpacity: 1, - weight: 0 - }, - // Water features - 'water_areas': { - fill: true, - fillColor: '#aad3df', - fillOpacity: 1, - weight: 1, - color: '#aad3df', - opacity: 1 - }, - 'water_areas_polygons': { - fill: true, - fillColor: '#aad3df', - fillOpacity: 1, - weight: 0 - }, - 'water_lines': { - weight: 2, - color: '#aad3df', - opacity: 1 - }, - 'ocean': { - fill: true, - fillColor: '#aad3df', - fillOpacity: 1, - weight: 0 - }, - // Land - match OSM standard background - 'land': { - fill: true, - fillColor: '#f2efe9', - fillOpacity: 1, - weight: 0 - }, - // Landuse/landcover - various land use types - 'landuse_areas': function(properties: any) { - const kind = properties.kind || properties.landuse || properties.natural; - // Parks and recreation - if (kind === 'park' || kind === 'recreation_ground' || kind === 'grass' || kind === 'village_green') { - return { - fill: true, - fillColor: '#cdebb0', - fillOpacity: 1, - weight: 0 - }; - } - // Forests and woods - if (kind === 'forest' || kind === 'wood') { - return { - fill: true, - fillColor: '#add19e', - fillOpacity: 1, - weight: 0 - }; - } - // Residential - if (kind === 'residential') { - return { - fill: true, - fillColor: '#e0dfdf', - fillOpacity: 0.5, - weight: 0 - }; - } - // Commercial/retail - if (kind === 'commercial' || kind === 'retail') { - return { - fill: true, - fillColor: '#f2dad9', - fillOpacity: 0.5, - weight: 0 - }; - } - // Industrial - if (kind === 'industrial') { - return { - fill: true, - fillColor: '#dfd1d6', - fillOpacity: 0.5, - weight: 0 - }; - } - // Default - return { - fill: false, - weight: 0 - }; - }, - // Streets/roads - road areas and parking - 'streets_polygons': function(properties: any) { - const kind = properties.kind || properties.area; - if (kind === 'parking') { - return { - fill: true, - fillColor: '#f7efb7', - fillOpacity: 0.8, - weight: 0 - }; - } - // Default road areas - return { - fill: true, - fillColor: '#ffffff', - fillOpacity: 0.8, - weight: 0 - }; - }, - // Main street lines - 'streets': function(properties: any, zoom: number) { - const kind = properties.kind || properties.highway || properties.type; - - // Adjust weights based on zoom - const zoomFactor = zoom > 15 ? 1.5 : zoom > 13 ? 1.2 : 1; - - // Motorways - if (kind === 'motorway' || kind === 'motorway_link') { - return { - weight: 5 * zoomFactor, - color: '#e892a2', - opacity: 1 - }; - } - // Trunk roads - if (kind === 'trunk' || kind === 'trunk_link') { - return { - weight: 4 * zoomFactor, - color: '#f9b29c', - opacity: 1 - }; - } - // Primary roads - if (kind === 'primary' || kind === 'primary_link') { - return { - weight: 3.5 * zoomFactor, - color: '#fcd6a4', - opacity: 1 - }; - } - // Secondary roads - if (kind === 'secondary' || kind === 'secondary_link') { - return { - weight: 3 * zoomFactor, - color: '#f7fabf', - opacity: 1 - }; - } - // Tertiary roads - if (kind === 'tertiary' || kind === 'tertiary_link') { - return { - weight: 2.5 * zoomFactor, - color: '#ffffff', - opacity: 1 - }; - } - // Unclassified roads - if (kind === 'unclassified') { - return { - weight: 2 * zoomFactor, - color: '#ffffff', - opacity: 1 - }; - } - // Residential streets - if (kind === 'residential' || kind === 'living_street') { - return { - weight: 1.5 * zoomFactor, - color: '#ffffff', - opacity: 0.9 - }; - } - // Service roads - if (kind === 'service') { - return { - weight: 1 * zoomFactor, - color: '#ffffff', - opacity: 0.8 - }; - } - // Paths and tracks - if (kind === 'path' || kind === 'track' || kind === 'footway' || kind === 'cycleway') { - return { - weight: 0.8, - color: '#fa8072', - opacity: 0.8, - dashArray: '2, 2' - }; - } - // Default - return { - weight: 1, - color: '#cccccc', - opacity: 0.7 - }; - }, - // Street labels - 'street_labels': { - weight: 0, - opacity: 0 - }, - 'street_labels_points': { - weight: 0, - opacity: 0 - }, - // Buildings - 'buildings': { - fill: true, - fillColor: '#d9d0c9', - fillOpacity: 1, - weight: 1, - color: '#cdbbb4', - opacity: 1 - }, - 'buildings_polygons': { - fill: true, - fillColor: '#d9d0c9', - fillOpacity: 1, - weight: 1, - color: '#cdbbb4', - opacity: 1 - }, - // POIs - Shortbread uses 'pois_*' layers - 'pois_points': { - weight: 0, - opacity: 0, - fillOpacity: 0 - }, - 'pois_polygons': { - weight: 0, - opacity: 0, - fillOpacity: 0 - }, - // Places - hide labels - 'place_labels': { - weight: 0, - opacity: 0, - fillOpacity: 0 - }, - 'place_points': { - weight: 0, - opacity: 0, - fillOpacity: 0 - }, - // Boundaries - Shortbread uses 'boundaries_*' - 'boundaries': { - weight: 0.8, - color: '#a09090', - opacity: 0.4, - dashArray: '3, 3' - }, - 'boundaries_labels': { - weight: 0, - opacity: 0 - }, - // Transit - hide for simplicity - 'transit_points': { - weight: 0, - opacity: 0 - }, - 'transit_polygons': { - weight: 0, - opacity: 0 - }, - 'transit_lines': { - weight: 0, - opacity: 0 - }, - // Additional layers - 'addresses': { - weight: 0, - opacity: 0 - }, - 'aerialways': { - weight: 1, - color: '#999999', - opacity: 0.5, - dashArray: '5, 3' - }, - 'bridges': { - weight: 0, - opacity: 0 - }, - 'ferries': { - weight: 1, - color: '#66f', - opacity: 0.5, - dashArray: '3, 3' - }, - 'piers': { - fill: true, - fillColor: '#f2efe9', - fillOpacity: 1, - weight: 1, - color: '#aaa', - opacity: 1 - }, - 'public_transport': { - weight: 0, - opacity: 0 - }, - 'sites': function(properties: any) { - const kind = properties.kind || properties.type; - if (kind === 'university' || kind === 'college' || kind === 'school') { - return { - fill: true, - fillColor: '#f0f0d8', - fillOpacity: 0.5, - weight: 0 - }; - } - if (kind === 'hospital') { - return { - fill: true, - fillColor: '#fde', - fillOpacity: 0.5, - weight: 0 - }; - } - return { - fill: false, - weight: 0 - }; - }, - // Default style - should rarely be used - '*': { - fill: false, - weight: 0, - opacity: 0 - } - }; - - // Create vector grid layer using L.vectorGrid.protobuf - tileLayer = (L as any).vectorGrid.protobuf(vectorProvider.url, { - attribution: vectorProvider.attribution, - maxNativeZoom: vectorProvider.maxZoom, - maxZoom: 19, - rendererFactory: L.canvas.tile, - interactive: false, - getFeatureId: function(feature: any) { - return feature.properties.osm_id || feature.properties.id; - }, - // Pass styles object directly - vectorTileLayerStyles: vectorTileStyles - }); - - console.log('Leaflet VectorGrid layer created successfully'); - console.log('Vector tile layer:', tileLayer); - } catch (error) { - console.error('Failed to create vector tile layer with Leaflet.VectorGrid:', error); - // Fall back to raster tiles on error - const provider = tileProviders.osm; - tileLayer = L.tileLayer(provider.url, { - attribution: provider.attribution, - maxZoom: 19, - subdomains: provider.subdomains, - tileSize: 256, - keepBuffer: 2, - updateWhenZooming: false, - updateInterval: 200, - errorTileUrl: - "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=", - }); - } - } else { - console.log('Leaflet.VectorGrid not available, falling back to raster tiles'); - // Fallback to raster tiles - const provider = tileProviders.osm; - tileLayer = L.tileLayer(provider.url, { + // Create raster tile layer + const provider = tileProviders.osm; + const tileLayer = L.tileLayer(provider.url, { attribution: provider.attribution, maxZoom: 19, subdomains: provider.subdomains, diff --git a/assets/js/types/leaflet-vectorgrid.d.ts b/assets/js/types/leaflet-vectorgrid.d.ts deleted file mode 100644 index b118845..0000000 --- a/assets/js/types/leaflet-vectorgrid.d.ts +++ /dev/null @@ -1,37 +0,0 @@ -// Type definitions for leaflet.vectorgrid -import * as L from 'leaflet'; - -declare module 'leaflet' { - namespace vectorGrid { - interface VectorGridOptions extends L.GridLayerOptions { - rendererFactory?: L.Renderer; - vectorTileLayerStyles?: any; - interactive?: boolean; - getFeatureId?: (feature: any) => string | number; - } - - interface ProtobufOptions extends VectorGridOptions { - subdomains?: string | string[]; - key?: string; - token?: string; - maxNativeZoom?: number; - } - - class VectorGrid extends L.GridLayer { - constructor(options?: VectorGridOptions); - setFeatureStyle(id: string | number, style: L.PathOptions): void; - resetFeatureStyle(id: string | number): void; - clearHighlight(): void; - } - - class Protobuf extends VectorGrid { - constructor(url: string, options?: ProtobufOptions); - } - - function protobuf(url: string, options?: ProtobufOptions): Protobuf; - } - - function vectorGrid(options?: any): any; -} - -export {}; \ No newline at end of file diff --git a/assets/vendor/js/leaflet-vectorgrid.js b/assets/vendor/js/leaflet-vectorgrid.js deleted file mode 100644 index eaf6520..0000000 --- a/assets/vendor/js/leaflet-vectorgrid.js +++ /dev/null @@ -1,2530 +0,0 @@ -(function () { -'use strict'; - -function __$strToBlobUri(str, mime, isBinary) {try {return window.URL.createObjectURL(new Blob([Uint8Array.from(str.split('').map(function(c) {return c.charCodeAt(0)}))], {type: mime}));} catch (e) {return "data:" + mime + (isBinary ? ";base64," : ",") + str;}} -(function(self) { - 'use strict'; - - if (self.fetch) { - return - } - - var support = { - searchParams: 'URLSearchParams' in self, - iterable: 'Symbol' in self && 'iterator' in Symbol, - blob: 'FileReader' in self && 'Blob' in self && (function() { - try { - new Blob(); - return true - } catch(e) { - return false - } - })(), - formData: 'FormData' in self, - arrayBuffer: 'ArrayBuffer' in self - }; - - if (support.arrayBuffer) { - var viewClasses = [ - '[object Int8Array]', - '[object Uint8Array]', - '[object Uint8ClampedArray]', - '[object Int16Array]', - '[object Uint16Array]', - '[object Int32Array]', - '[object Uint32Array]', - '[object Float32Array]', - '[object Float64Array]' - ]; - - var isDataView = function(obj) { - return obj && DataView.prototype.isPrototypeOf(obj) - }; - - var isArrayBufferView = ArrayBuffer.isView || function(obj) { - return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1 - }; - } - - function normalizeName(name) { - if (typeof name !== 'string') { - name = String(name); - } - if (/[^a-z0-9\-#$%&'*+.\^_`|~]/i.test(name)) { - throw new TypeError('Invalid character in header field name') - } - return name.toLowerCase() - } - - function normalizeValue(value) { - if (typeof value !== 'string') { - value = String(value); - } - return value - } - - // Build a destructive iterator for the value list - function iteratorFor(items) { - var iterator = { - next: function() { - var value = items.shift(); - return {done: value === undefined, value: value} - } - }; - - if (support.iterable) { - iterator[Symbol.iterator] = function() { - return iterator - }; - } - - return iterator - } - - function Headers(headers) { - this.map = {}; - - if (headers instanceof Headers) { - headers.forEach(function(value, name) { - this.append(name, value); - }, this); - } else if (Array.isArray(headers)) { - headers.forEach(function(header) { - this.append(header[0], header[1]); - }, this); - } else if (headers) { - Object.getOwnPropertyNames(headers).forEach(function(name) { - this.append(name, headers[name]); - }, this); - } - } - - Headers.prototype.append = function(name, value) { - name = normalizeName(name); - value = normalizeValue(value); - var oldValue = this.map[name]; - this.map[name] = oldValue ? oldValue+','+value : value; - }; - - Headers.prototype['delete'] = function(name) { - delete this.map[normalizeName(name)]; - }; - - Headers.prototype.get = function(name) { - name = normalizeName(name); - return this.has(name) ? this.map[name] : null - }; - - Headers.prototype.has = function(name) { - return this.map.hasOwnProperty(normalizeName(name)) - }; - - Headers.prototype.set = function(name, value) { - this.map[normalizeName(name)] = normalizeValue(value); - }; - - Headers.prototype.forEach = function(callback, thisArg) { - var this$1 = this; - - for (var name in this.map) { - if (this$1.map.hasOwnProperty(name)) { - callback.call(thisArg, this$1.map[name], name, this$1); - } - } - }; - - Headers.prototype.keys = function() { - var items = []; - this.forEach(function(value, name) { items.push(name); }); - return iteratorFor(items) - }; - - Headers.prototype.values = function() { - var items = []; - this.forEach(function(value) { items.push(value); }); - return iteratorFor(items) - }; - - Headers.prototype.entries = function() { - var items = []; - this.forEach(function(value, name) { items.push([name, value]); }); - return iteratorFor(items) - }; - - if (support.iterable) { - Headers.prototype[Symbol.iterator] = Headers.prototype.entries; - } - - function consumed(body) { - if (body.bodyUsed) { - return Promise.reject(new TypeError('Already read')) - } - body.bodyUsed = true; - } - - function fileReaderReady(reader) { - return new Promise(function(resolve, reject) { - reader.onload = function() { - resolve(reader.result); - }; - reader.onerror = function() { - reject(reader.error); - }; - }) - } - - function readBlobAsArrayBuffer(blob) { - var reader = new FileReader(); - var promise = fileReaderReady(reader); - reader.readAsArrayBuffer(blob); - return promise - } - - function readBlobAsText(blob) { - var reader = new FileReader(); - var promise = fileReaderReady(reader); - reader.readAsText(blob); - return promise - } - - function readArrayBufferAsText(buf) { - var view = new Uint8Array(buf); - var chars = new Array(view.length); - - for (var i = 0; i < view.length; i++) { - chars[i] = String.fromCharCode(view[i]); - } - return chars.join('') - } - - function bufferClone(buf) { - if (buf.slice) { - return buf.slice(0) - } else { - var view = new Uint8Array(buf.byteLength); - view.set(new Uint8Array(buf)); - return view.buffer - } - } - - function Body() { - this.bodyUsed = false; - - this._initBody = function(body) { - this._bodyInit = body; - if (!body) { - this._bodyText = ''; - } else if (typeof body === 'string') { - this._bodyText = body; - } else if (support.blob && Blob.prototype.isPrototypeOf(body)) { - this._bodyBlob = body; - } else if (support.formData && FormData.prototype.isPrototypeOf(body)) { - this._bodyFormData = body; - } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) { - this._bodyText = body.toString(); - } else if (support.arrayBuffer && support.blob && isDataView(body)) { - this._bodyArrayBuffer = bufferClone(body.buffer); - // IE 10-11 can't handle a DataView body. - this._bodyInit = new Blob([this._bodyArrayBuffer]); - } else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) { - this._bodyArrayBuffer = bufferClone(body); - } else { - throw new Error('unsupported BodyInit type') - } - - if (!this.headers.get('content-type')) { - if (typeof body === 'string') { - this.headers.set('content-type', 'text/plain;charset=UTF-8'); - } else if (this._bodyBlob && this._bodyBlob.type) { - this.headers.set('content-type', this._bodyBlob.type); - } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) { - this.headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8'); - } - } - }; - - if (support.blob) { - this.blob = function() { - var rejected = consumed(this); - if (rejected) { - return rejected - } - - if (this._bodyBlob) { - return Promise.resolve(this._bodyBlob) - } else if (this._bodyArrayBuffer) { - return Promise.resolve(new Blob([this._bodyArrayBuffer])) - } else if (this._bodyFormData) { - throw new Error('could not read FormData body as blob') - } else { - return Promise.resolve(new Blob([this._bodyText])) - } - }; - - this.arrayBuffer = function() { - if (this._bodyArrayBuffer) { - return consumed(this) || Promise.resolve(this._bodyArrayBuffer) - } else { - return this.blob().then(readBlobAsArrayBuffer) - } - }; - } - - this.text = function() { - var rejected = consumed(this); - if (rejected) { - return rejected - } - - if (this._bodyBlob) { - return readBlobAsText(this._bodyBlob) - } else if (this._bodyArrayBuffer) { - return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer)) - } else if (this._bodyFormData) { - throw new Error('could not read FormData body as text') - } else { - return Promise.resolve(this._bodyText) - } - }; - - if (support.formData) { - this.formData = function() { - return this.text().then(decode) - }; - } - - this.json = function() { - return this.text().then(JSON.parse) - }; - - return this - } - - // HTTP methods whose capitalization should be normalized - var methods = ['DELETE', 'GET', 'HEAD', 'OPTIONS', 'POST', 'PUT']; - - function normalizeMethod(method) { - var upcased = method.toUpperCase(); - return (methods.indexOf(upcased) > -1) ? upcased : method - } - - function Request(input, options) { - options = options || {}; - var body = options.body; - - if (input instanceof Request) { - if (input.bodyUsed) { - throw new TypeError('Already read') - } - this.url = input.url; - this.credentials = input.credentials; - if (!options.headers) { - this.headers = new Headers(input.headers); - } - this.method = input.method; - this.mode = input.mode; - if (!body && input._bodyInit != null) { - body = input._bodyInit; - input.bodyUsed = true; - } - } else { - this.url = String(input); - } - - this.credentials = options.credentials || this.credentials || 'omit'; - if (options.headers || !this.headers) { - this.headers = new Headers(options.headers); - } - this.method = normalizeMethod(options.method || this.method || 'GET'); - this.mode = options.mode || this.mode || null; - this.referrer = null; - - if ((this.method === 'GET' || this.method === 'HEAD') && body) { - throw new TypeError('Body not allowed for GET or HEAD requests') - } - this._initBody(body); - } - - Request.prototype.clone = function() { - return new Request(this, { body: this._bodyInit }) - }; - - function decode(body) { - var form = new FormData(); - body.trim().split('&').forEach(function(bytes) { - if (bytes) { - var split = bytes.split('='); - var name = split.shift().replace(/\+/g, ' '); - var value = split.join('=').replace(/\+/g, ' '); - form.append(decodeURIComponent(name), decodeURIComponent(value)); - } - }); - return form - } - - function parseHeaders(rawHeaders) { - var headers = new Headers(); - rawHeaders.split(/\r?\n/).forEach(function(line) { - var parts = line.split(':'); - var key = parts.shift().trim(); - if (key) { - var value = parts.join(':').trim(); - headers.append(key, value); - } - }); - return headers - } - - Body.call(Request.prototype); - - function Response(bodyInit, options) { - if (!options) { - options = {}; - } - - this.type = 'default'; - this.status = 'status' in options ? options.status : 200; - this.ok = this.status >= 200 && this.status < 300; - this.statusText = 'statusText' in options ? options.statusText : 'OK'; - this.headers = new Headers(options.headers); - this.url = options.url || ''; - this._initBody(bodyInit); - } - - Body.call(Response.prototype); - - Response.prototype.clone = function() { - return new Response(this._bodyInit, { - status: this.status, - statusText: this.statusText, - headers: new Headers(this.headers), - url: this.url - }) - }; - - Response.error = function() { - var response = new Response(null, {status: 0, statusText: ''}); - response.type = 'error'; - return response - }; - - var redirectStatuses = [301, 302, 303, 307, 308]; - - Response.redirect = function(url, status) { - if (redirectStatuses.indexOf(status) === -1) { - throw new RangeError('Invalid status code') - } - - return new Response(null, {status: status, headers: {location: url}}) - }; - - self.Headers = Headers; - self.Request = Request; - self.Response = Response; - - self.fetch = function(input, init) { - return new Promise(function(resolve, reject) { - var request = new Request(input, init); - var xhr = new XMLHttpRequest(); - - xhr.onload = function() { - var options = { - status: xhr.status, - statusText: xhr.statusText, - headers: parseHeaders(xhr.getAllResponseHeaders() || '') - }; - options.url = 'responseURL' in xhr ? xhr.responseURL : options.headers.get('X-Request-URL'); - var body = 'response' in xhr ? xhr.response : xhr.responseText; - resolve(new Response(body, options)); - }; - - xhr.onerror = function() { - reject(new TypeError('Network request failed')); - }; - - xhr.ontimeout = function() { - reject(new TypeError('Network request failed')); - }; - - xhr.open(request.method, request.url, true); - - if (request.credentials === 'include') { - xhr.withCredentials = true; - } - - if ('responseType' in xhr && support.blob) { - xhr.responseType = 'blob'; - } - - request.headers.forEach(function(value, name) { - xhr.setRequestHeader(name, value); - }); - - xhr.send(typeof request._bodyInit === 'undefined' ? null : request._bodyInit); - }) - }; - self.fetch.polyfill = true; -})(typeof self !== 'undefined' ? self : undefined); - -var read = function (buffer, offset, isLE, mLen, nBytes) { - var e, m; - var eLen = nBytes * 8 - mLen - 1; - var eMax = (1 << eLen) - 1; - var eBias = eMax >> 1; - var nBits = -7; - var i = isLE ? (nBytes - 1) : 0; - var d = isLE ? -1 : 1; - var s = buffer[offset + i]; - - i += d; - - e = s & ((1 << (-nBits)) - 1); - s >>= (-nBits); - nBits += eLen; - for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {} - - m = e & ((1 << (-nBits)) - 1); - e >>= (-nBits); - nBits += mLen; - for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {} - - if (e === 0) { - e = 1 - eBias; - } else if (e === eMax) { - return m ? NaN : ((s ? -1 : 1) * Infinity) - } else { - m = m + Math.pow(2, mLen); - e = e - eBias; - } - return (s ? -1 : 1) * m * Math.pow(2, e - mLen) -}; - -var write = function (buffer, value, offset, isLE, mLen, nBytes) { - var e, m, c; - var eLen = nBytes * 8 - mLen - 1; - var eMax = (1 << eLen) - 1; - var eBias = eMax >> 1; - var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0); - var i = isLE ? 0 : (nBytes - 1); - var d = isLE ? 1 : -1; - var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0; - - value = Math.abs(value); - - if (isNaN(value) || value === Infinity) { - m = isNaN(value) ? 1 : 0; - e = eMax; - } else { - e = Math.floor(Math.log(value) / Math.LN2); - if (value * (c = Math.pow(2, -e)) < 1) { - e--; - c *= 2; - } - if (e + eBias >= 1) { - value += rt / c; - } else { - value += rt * Math.pow(2, 1 - eBias); - } - if (value * c >= 2) { - e++; - c /= 2; - } - - if (e + eBias >= eMax) { - m = 0; - e = eMax; - } else if (e + eBias >= 1) { - m = (value * c - 1) * Math.pow(2, mLen); - e = e + eBias; - } else { - m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen); - e = 0; - } - } - - for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} - - e = (e << mLen) | m; - eLen += mLen; - for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} - - buffer[offset + i - d] |= s * 128; -}; - -var index$1 = { - read: read, - write: write -}; - -var index = Pbf; - -var ieee754 = index$1; - -function Pbf(buf) { - this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0); - this.pos = 0; - this.type = 0; - this.length = this.buf.length; -} - -Pbf.Varint = 0; // varint: int32, int64, uint32, uint64, sint32, sint64, bool, enum -Pbf.Fixed64 = 1; // 64-bit: double, fixed64, sfixed64 -Pbf.Bytes = 2; // length-delimited: string, bytes, embedded messages, packed repeated fields -Pbf.Fixed32 = 5; // 32-bit: float, fixed32, sfixed32 - -var SHIFT_LEFT_32 = (1 << 16) * (1 << 16); -var SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32; - -Pbf.prototype = { - - destroy: function() { - this.buf = null; - }, - - // === READING ================================================================= - - readFields: function(readField, result, end) { - var this$1 = this; - - end = end || this.length; - - while (this.pos < end) { - var val = this$1.readVarint(), - tag = val >> 3, - startPos = this$1.pos; - - this$1.type = val & 0x7; - readField(tag, result, this$1); - - if (this$1.pos === startPos) { this$1.skip(val); } - } - return result; - }, - - readMessage: function(readField, result) { - return this.readFields(readField, result, this.readVarint() + this.pos); - }, - - readFixed32: function() { - var val = readUInt32(this.buf, this.pos); - this.pos += 4; - return val; - }, - - readSFixed32: function() { - var val = readInt32(this.buf, this.pos); - this.pos += 4; - return val; - }, - - // 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed) - - readFixed64: function() { - var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32; - this.pos += 8; - return val; - }, - - readSFixed64: function() { - var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32; - this.pos += 8; - return val; - }, - - readFloat: function() { - var val = ieee754.read(this.buf, this.pos, true, 23, 4); - this.pos += 4; - return val; - }, - - readDouble: function() { - var val = ieee754.read(this.buf, this.pos, true, 52, 8); - this.pos += 8; - return val; - }, - - readVarint: function(isSigned) { - var buf = this.buf, - val, b; - - b = buf[this.pos++]; val = b & 0x7f; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 7; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 14; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 21; if (b < 0x80) { return val; } - b = buf[this.pos]; val |= (b & 0x0f) << 28; - - return readVarintRemainder(val, isSigned, this); - }, - - readVarint64: function() { // for compatibility with v2.0.1 - return this.readVarint(true); - }, - - readSVarint: function() { - var num = this.readVarint(); - return num % 2 === 1 ? (num + 1) / -2 : num / 2; // zigzag encoding - }, - - readBoolean: function() { - return Boolean(this.readVarint()); - }, - - readString: function() { - var end = this.readVarint() + this.pos, - str = readUtf8(this.buf, this.pos, end); - this.pos = end; - return str; - }, - - readBytes: function() { - var end = this.readVarint() + this.pos, - buffer = this.buf.subarray(this.pos, end); - this.pos = end; - return buffer; - }, - - // verbose for performance reasons; doesn't affect gzipped size - - readPackedVarint: function(arr, isSigned) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readVarint(isSigned)); } - return arr; - }, - readPackedSVarint: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSVarint()); } - return arr; - }, - readPackedBoolean: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readBoolean()); } - return arr; - }, - readPackedFloat: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFloat()); } - return arr; - }, - readPackedDouble: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readDouble()); } - return arr; - }, - readPackedFixed32: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFixed32()); } - return arr; - }, - readPackedSFixed32: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSFixed32()); } - return arr; - }, - readPackedFixed64: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFixed64()); } - return arr; - }, - readPackedSFixed64: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSFixed64()); } - return arr; - }, - - skip: function(val) { - var type = val & 0x7; - if (type === Pbf.Varint) { while (this.buf[this.pos++] > 0x7f) {} } - else if (type === Pbf.Bytes) { this.pos = this.readVarint() + this.pos; } - else if (type === Pbf.Fixed32) { this.pos += 4; } - else if (type === Pbf.Fixed64) { this.pos += 8; } - else { throw new Error('Unimplemented type: ' + type); } - }, - - // === WRITING ================================================================= - - writeTag: function(tag, type) { - this.writeVarint((tag << 3) | type); - }, - - realloc: function(min) { - var length = this.length || 16; - - while (length < this.pos + min) { length *= 2; } - - if (length !== this.length) { - var buf = new Uint8Array(length); - buf.set(this.buf); - this.buf = buf; - this.length = length; - } - }, - - finish: function() { - this.length = this.pos; - this.pos = 0; - return this.buf.subarray(0, this.length); - }, - - writeFixed32: function(val) { - this.realloc(4); - writeInt32(this.buf, val, this.pos); - this.pos += 4; - }, - - writeSFixed32: function(val) { - this.realloc(4); - writeInt32(this.buf, val, this.pos); - this.pos += 4; - }, - - writeFixed64: function(val) { - this.realloc(8); - writeInt32(this.buf, val & -1, this.pos); - writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4); - this.pos += 8; - }, - - writeSFixed64: function(val) { - this.realloc(8); - writeInt32(this.buf, val & -1, this.pos); - writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4); - this.pos += 8; - }, - - writeVarint: function(val) { - val = +val || 0; - - if (val > 0xfffffff || val < 0) { - writeBigVarint(val, this); - return; - } - - this.realloc(4); - - this.buf[this.pos++] = val & 0x7f | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = (val >>> 7) & 0x7f; - }, - - writeSVarint: function(val) { - this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2); - }, - - writeBoolean: function(val) { - this.writeVarint(Boolean(val)); - }, - - writeString: function(str) { - str = String(str); - this.realloc(str.length * 4); - - this.pos++; // reserve 1 byte for short string length - - var startPos = this.pos; - // write the string directly to the buffer and see how much was written - this.pos = writeUtf8(this.buf, str, this.pos); - var len = this.pos - startPos; - - if (len >= 0x80) { makeRoomForExtraLength(startPos, len, this); } - - // finally, write the message length in the reserved place and restore the position - this.pos = startPos - 1; - this.writeVarint(len); - this.pos += len; - }, - - writeFloat: function(val) { - this.realloc(4); - ieee754.write(this.buf, val, this.pos, true, 23, 4); - this.pos += 4; - }, - - writeDouble: function(val) { - this.realloc(8); - ieee754.write(this.buf, val, this.pos, true, 52, 8); - this.pos += 8; - }, - - writeBytes: function(buffer) { - var this$1 = this; - - var len = buffer.length; - this.writeVarint(len); - this.realloc(len); - for (var i = 0; i < len; i++) { this$1.buf[this$1.pos++] = buffer[i]; } - }, - - writeRawMessage: function(fn, obj) { - this.pos++; // reserve 1 byte for short message length - - // write the message directly to the buffer and see how much was written - var startPos = this.pos; - fn(obj, this); - var len = this.pos - startPos; - - if (len >= 0x80) { makeRoomForExtraLength(startPos, len, this); } - - // finally, write the message length in the reserved place and restore the position - this.pos = startPos - 1; - this.writeVarint(len); - this.pos += len; - }, - - writeMessage: function(tag, fn, obj) { - this.writeTag(tag, Pbf.Bytes); - this.writeRawMessage(fn, obj); - }, - - writePackedVarint: function(tag, arr) { this.writeMessage(tag, writePackedVarint, arr); }, - writePackedSVarint: function(tag, arr) { this.writeMessage(tag, writePackedSVarint, arr); }, - writePackedBoolean: function(tag, arr) { this.writeMessage(tag, writePackedBoolean, arr); }, - writePackedFloat: function(tag, arr) { this.writeMessage(tag, writePackedFloat, arr); }, - writePackedDouble: function(tag, arr) { this.writeMessage(tag, writePackedDouble, arr); }, - writePackedFixed32: function(tag, arr) { this.writeMessage(tag, writePackedFixed32, arr); }, - writePackedSFixed32: function(tag, arr) { this.writeMessage(tag, writePackedSFixed32, arr); }, - writePackedFixed64: function(tag, arr) { this.writeMessage(tag, writePackedFixed64, arr); }, - writePackedSFixed64: function(tag, arr) { this.writeMessage(tag, writePackedSFixed64, arr); }, - - writeBytesField: function(tag, buffer) { - this.writeTag(tag, Pbf.Bytes); - this.writeBytes(buffer); - }, - writeFixed32Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeFixed32(val); - }, - writeSFixed32Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeSFixed32(val); - }, - writeFixed64Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeFixed64(val); - }, - writeSFixed64Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeSFixed64(val); - }, - writeVarintField: function(tag, val) { - this.writeTag(tag, Pbf.Varint); - this.writeVarint(val); - }, - writeSVarintField: function(tag, val) { - this.writeTag(tag, Pbf.Varint); - this.writeSVarint(val); - }, - writeStringField: function(tag, str) { - this.writeTag(tag, Pbf.Bytes); - this.writeString(str); - }, - writeFloatField: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeFloat(val); - }, - writeDoubleField: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeDouble(val); - }, - writeBooleanField: function(tag, val) { - this.writeVarintField(tag, Boolean(val)); - } -}; - -function readVarintRemainder(l, s, p) { - var buf = p.buf, - h, b; - - b = buf[p.pos++]; h = (b & 0x70) >> 4; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 3; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 10; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 17; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 24; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x01) << 31; if (b < 0x80) { return toNum(l, h, s); } - - throw new Error('Expected varint not more than 10 bytes'); -} - -function readPackedEnd(pbf) { - return pbf.type === Pbf.Bytes ? - pbf.readVarint() + pbf.pos : pbf.pos + 1; -} - -function toNum(low, high, isSigned) { - if (isSigned) { - return high * 0x100000000 + (low >>> 0); - } - - return ((high >>> 0) * 0x100000000) + (low >>> 0); -} - -function writeBigVarint(val, pbf) { - var low, high; - - if (val >= 0) { - low = (val % 0x100000000) | 0; - high = (val / 0x100000000) | 0; - } else { - low = ~(-val % 0x100000000); - high = ~(-val / 0x100000000); - - if (low ^ 0xffffffff) { - low = (low + 1) | 0; - } else { - low = 0; - high = (high + 1) | 0; - } - } - - if (val >= 0x10000000000000000 || val < -0x10000000000000000) { - throw new Error('Given varint doesn\'t fit into 10 bytes'); - } - - pbf.realloc(10); - - writeBigVarintLow(low, high, pbf); - writeBigVarintHigh(high, pbf); -} - -function writeBigVarintLow(low, high, pbf) { - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos] = low & 0x7f; -} - -function writeBigVarintHigh(high, pbf) { - var lsb = (high & 0x07) << 4; - - pbf.buf[pbf.pos++] |= lsb | ((high >>>= 3) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f; -} - -function makeRoomForExtraLength(startPos, len, pbf) { - var extraLen = - len <= 0x3fff ? 1 : - len <= 0x1fffff ? 2 : - len <= 0xfffffff ? 3 : Math.ceil(Math.log(len) / (Math.LN2 * 7)); - - // if 1 byte isn't enough for encoding message length, shift the data to the right - pbf.realloc(extraLen); - for (var i = pbf.pos - 1; i >= startPos; i--) { pbf.buf[i + extraLen] = pbf.buf[i]; } -} - -function writePackedVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeVarint(arr[i]); } } -function writePackedSVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSVarint(arr[i]); } } -function writePackedFloat(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFloat(arr[i]); } } -function writePackedDouble(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeDouble(arr[i]); } } -function writePackedBoolean(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeBoolean(arr[i]); } } -function writePackedFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFixed32(arr[i]); } } -function writePackedSFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSFixed32(arr[i]); } } -function writePackedFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFixed64(arr[i]); } } -function writePackedSFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSFixed64(arr[i]); } } - -// Buffer code below from https://github.com/feross/buffer, MIT-licensed - -function readUInt32(buf, pos) { - return ((buf[pos]) | - (buf[pos + 1] << 8) | - (buf[pos + 2] << 16)) + - (buf[pos + 3] * 0x1000000); -} - -function writeInt32(buf, val, pos) { - buf[pos] = val; - buf[pos + 1] = (val >>> 8); - buf[pos + 2] = (val >>> 16); - buf[pos + 3] = (val >>> 24); -} - -function readInt32(buf, pos) { - return ((buf[pos]) | - (buf[pos + 1] << 8) | - (buf[pos + 2] << 16)) + - (buf[pos + 3] << 24); -} - -function readUtf8(buf, pos, end) { - var str = ''; - var i = pos; - - while (i < end) { - var b0 = buf[i]; - var c = null; // codepoint - var bytesPerSequence = - b0 > 0xEF ? 4 : - b0 > 0xDF ? 3 : - b0 > 0xBF ? 2 : 1; - - if (i + bytesPerSequence > end) { break; } - - var b1, b2, b3; - - if (bytesPerSequence === 1) { - if (b0 < 0x80) { - c = b0; - } - } else if (bytesPerSequence === 2) { - b1 = buf[i + 1]; - if ((b1 & 0xC0) === 0x80) { - c = (b0 & 0x1F) << 0x6 | (b1 & 0x3F); - if (c <= 0x7F) { - c = null; - } - } - } else if (bytesPerSequence === 3) { - b1 = buf[i + 1]; - b2 = buf[i + 2]; - if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80) { - c = (b0 & 0xF) << 0xC | (b1 & 0x3F) << 0x6 | (b2 & 0x3F); - if (c <= 0x7FF || (c >= 0xD800 && c <= 0xDFFF)) { - c = null; - } - } - } else if (bytesPerSequence === 4) { - b1 = buf[i + 1]; - b2 = buf[i + 2]; - b3 = buf[i + 3]; - if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) { - c = (b0 & 0xF) << 0x12 | (b1 & 0x3F) << 0xC | (b2 & 0x3F) << 0x6 | (b3 & 0x3F); - if (c <= 0xFFFF || c >= 0x110000) { - c = null; - } - } - } - - if (c === null) { - c = 0xFFFD; - bytesPerSequence = 1; - - } else if (c > 0xFFFF) { - c -= 0x10000; - str += String.fromCharCode(c >>> 10 & 0x3FF | 0xD800); - c = 0xDC00 | c & 0x3FF; - } - - str += String.fromCharCode(c); - i += bytesPerSequence; - } - - return str; -} - -function writeUtf8(buf, str, pos) { - for (var i = 0, c, lead; i < str.length; i++) { - c = str.charCodeAt(i); // code point - - if (c > 0xD7FF && c < 0xE000) { - if (lead) { - if (c < 0xDC00) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - lead = c; - continue; - } else { - c = lead - 0xD800 << 10 | c - 0xDC00 | 0x10000; - lead = null; - } - } else { - if (c > 0xDBFF || (i + 1 === str.length)) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - } else { - lead = c; - } - continue; - } - } else if (lead) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - lead = null; - } - - if (c < 0x80) { - buf[pos++] = c; - } else { - if (c < 0x800) { - buf[pos++] = c >> 0x6 | 0xC0; - } else { - if (c < 0x10000) { - buf[pos++] = c >> 0xC | 0xE0; - } else { - buf[pos++] = c >> 0x12 | 0xF0; - buf[pos++] = c >> 0xC & 0x3F | 0x80; - } - buf[pos++] = c >> 0x6 & 0x3F | 0x80; - } - buf[pos++] = c & 0x3F | 0x80; - } - } - return pos; -} - -var index$5 = Point$1; - -function Point$1(x, y) { - this.x = x; - this.y = y; -} - -Point$1.prototype = { - clone: function() { return new Point$1(this.x, this.y); }, - - add: function(p) { return this.clone()._add(p); }, - sub: function(p) { return this.clone()._sub(p); }, - mult: function(k) { return this.clone()._mult(k); }, - div: function(k) { return this.clone()._div(k); }, - rotate: function(a) { return this.clone()._rotate(a); }, - matMult: function(m) { return this.clone()._matMult(m); }, - unit: function() { return this.clone()._unit(); }, - perp: function() { return this.clone()._perp(); }, - round: function() { return this.clone()._round(); }, - - mag: function() { - return Math.sqrt(this.x * this.x + this.y * this.y); - }, - - equals: function(p) { - return this.x === p.x && - this.y === p.y; - }, - - dist: function(p) { - return Math.sqrt(this.distSqr(p)); - }, - - distSqr: function(p) { - var dx = p.x - this.x, - dy = p.y - this.y; - return dx * dx + dy * dy; - }, - - angle: function() { - return Math.atan2(this.y, this.x); - }, - - angleTo: function(b) { - return Math.atan2(this.y - b.y, this.x - b.x); - }, - - angleWith: function(b) { - return this.angleWithSep(b.x, b.y); - }, - - // Find the angle of the two vectors, solving the formula for the cross product a x b = |a||b|sin(θ) for θ. - angleWithSep: function(x, y) { - return Math.atan2( - this.x * y - this.y * x, - this.x * x + this.y * y); - }, - - _matMult: function(m) { - var x = m[0] * this.x + m[1] * this.y, - y = m[2] * this.x + m[3] * this.y; - this.x = x; - this.y = y; - return this; - }, - - _add: function(p) { - this.x += p.x; - this.y += p.y; - return this; - }, - - _sub: function(p) { - this.x -= p.x; - this.y -= p.y; - return this; - }, - - _mult: function(k) { - this.x *= k; - this.y *= k; - return this; - }, - - _div: function(k) { - this.x /= k; - this.y /= k; - return this; - }, - - _unit: function() { - this._div(this.mag()); - return this; - }, - - _perp: function() { - var y = this.y; - this.y = this.x; - this.x = -y; - return this; - }, - - _rotate: function(angle) { - var cos = Math.cos(angle), - sin = Math.sin(angle), - x = cos * this.x - sin * this.y, - y = sin * this.x + cos * this.y; - this.x = x; - this.y = y; - return this; - }, - - _round: function() { - this.x = Math.round(this.x); - this.y = Math.round(this.y); - return this; - } -}; - -// constructs Point from an array if necessary -Point$1.convert = function (a) { - if (a instanceof Point$1) { - return a; - } - if (Array.isArray(a)) { - return new Point$1(a[0], a[1]); - } - return a; -}; - -var Point = index$5; - -var vectortilefeature = VectorTileFeature$2; - -function VectorTileFeature$2(pbf, end, extent, keys, values) { - // Public - this.properties = {}; - this.extent = extent; - this.type = 0; - - // Private - this._pbf = pbf; - this._geometry = -1; - this._keys = keys; - this._values = values; - - pbf.readFields(readFeature, this, end); -} - -function readFeature(tag, feature, pbf) { - if (tag == 1) { feature.id = pbf.readVarint(); } - else if (tag == 2) { readTag(pbf, feature); } - else if (tag == 3) { feature.type = pbf.readVarint(); } - else if (tag == 4) { feature._geometry = pbf.pos; } -} - -function readTag(pbf, feature) { - var end = pbf.readVarint() + pbf.pos; - - while (pbf.pos < end) { - var key = feature._keys[pbf.readVarint()], - value = feature._values[pbf.readVarint()]; - feature.properties[key] = value; - } -} - -VectorTileFeature$2.types = ['Unknown', 'Point', 'LineString', 'Polygon']; - -VectorTileFeature$2.prototype.loadGeometry = function() { - var pbf = this._pbf; - pbf.pos = this._geometry; - - var end = pbf.readVarint() + pbf.pos, - cmd = 1, - length = 0, - x = 0, - y = 0, - lines = [], - line; - - while (pbf.pos < end) { - if (!length) { - var cmdLen = pbf.readVarint(); - cmd = cmdLen & 0x7; - length = cmdLen >> 3; - } - - length--; - - if (cmd === 1 || cmd === 2) { - x += pbf.readSVarint(); - y += pbf.readSVarint(); - - if (cmd === 1) { // moveTo - if (line) { lines.push(line); } - line = []; - } - - line.push(new Point(x, y)); - - } else if (cmd === 7) { - - // Workaround for https://github.com/mapbox/mapnik-vector-tile/issues/90 - if (line) { - line.push(line[0].clone()); // closePolygon - } - - } else { - throw new Error('unknown command ' + cmd); - } - } - - if (line) { lines.push(line); } - - return lines; -}; - -VectorTileFeature$2.prototype.bbox = function() { - var pbf = this._pbf; - pbf.pos = this._geometry; - - var end = pbf.readVarint() + pbf.pos, - cmd = 1, - length = 0, - x = 0, - y = 0, - x1 = Infinity, - x2 = -Infinity, - y1 = Infinity, - y2 = -Infinity; - - while (pbf.pos < end) { - if (!length) { - var cmdLen = pbf.readVarint(); - cmd = cmdLen & 0x7; - length = cmdLen >> 3; - } - - length--; - - if (cmd === 1 || cmd === 2) { - x += pbf.readSVarint(); - y += pbf.readSVarint(); - if (x < x1) { x1 = x; } - if (x > x2) { x2 = x; } - if (y < y1) { y1 = y; } - if (y > y2) { y2 = y; } - - } else if (cmd !== 7) { - throw new Error('unknown command ' + cmd); - } - } - - return [x1, y1, x2, y2]; -}; - -VectorTileFeature$2.prototype.toGeoJSON = function(x, y, z) { - var size = this.extent * Math.pow(2, z), - x0 = this.extent * x, - y0 = this.extent * y, - coords = this.loadGeometry(), - type = VectorTileFeature$2.types[this.type], - i, j; - - function project(line) { - for (var j = 0; j < line.length; j++) { - var p = line[j], y2 = 180 - (p.y + y0) * 360 / size; - line[j] = [ - (p.x + x0) * 360 / size - 180, - 360 / Math.PI * Math.atan(Math.exp(y2 * Math.PI / 180)) - 90 - ]; - } - } - - switch (this.type) { - case 1: - var points = []; - for (i = 0; i < coords.length; i++) { - points[i] = coords[i][0]; - } - coords = points; - project(coords); - break; - - case 2: - for (i = 0; i < coords.length; i++) { - project(coords[i]); - } - break; - - case 3: - coords = classifyRings(coords); - for (i = 0; i < coords.length; i++) { - for (j = 0; j < coords[i].length; j++) { - project(coords[i][j]); - } - } - break; - } - - if (coords.length === 1) { - coords = coords[0]; - } else { - type = 'Multi' + type; - } - - var result = { - type: "Feature", - geometry: { - type: type, - coordinates: coords - }, - properties: this.properties - }; - - if ('id' in this) { - result.id = this.id; - } - - return result; -}; - -// classifies an array of rings into polygons with outer rings and holes - -function classifyRings(rings) { - var len = rings.length; - - if (len <= 1) { return [rings]; } - - var polygons = [], - polygon, - ccw; - - for (var i = 0; i < len; i++) { - var area = signedArea(rings[i]); - if (area === 0) { continue; } - - if (ccw === undefined) { ccw = area < 0; } - - if (ccw === area < 0) { - if (polygon) { polygons.push(polygon); } - polygon = [rings[i]]; - - } else { - polygon.push(rings[i]); - } - } - if (polygon) { polygons.push(polygon); } - - return polygons; -} - -function signedArea(ring) { - var sum = 0; - for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) { - p1 = ring[i]; - p2 = ring[j]; - sum += (p2.x - p1.x) * (p1.y + p2.y); - } - return sum; -} - -var VectorTileFeature$1 = vectortilefeature; - -var vectortilelayer = VectorTileLayer$2; - -function VectorTileLayer$2(pbf, end) { - // Public - this.version = 1; - this.name = null; - this.extent = 4096; - this.length = 0; - - // Private - this._pbf = pbf; - this._keys = []; - this._values = []; - this._features = []; - - pbf.readFields(readLayer, this, end); - - this.length = this._features.length; -} - -function readLayer(tag, layer, pbf) { - if (tag === 15) { layer.version = pbf.readVarint(); } - else if (tag === 1) { layer.name = pbf.readString(); } - else if (tag === 5) { layer.extent = pbf.readVarint(); } - else if (tag === 2) { layer._features.push(pbf.pos); } - else if (tag === 3) { layer._keys.push(pbf.readString()); } - else if (tag === 4) { layer._values.push(readValueMessage(pbf)); } -} - -function readValueMessage(pbf) { - var value = null, - end = pbf.readVarint() + pbf.pos; - - while (pbf.pos < end) { - var tag = pbf.readVarint() >> 3; - - value = tag === 1 ? pbf.readString() : - tag === 2 ? pbf.readFloat() : - tag === 3 ? pbf.readDouble() : - tag === 4 ? pbf.readVarint64() : - tag === 5 ? pbf.readVarint() : - tag === 6 ? pbf.readSVarint() : - tag === 7 ? pbf.readBoolean() : null; - } - - return value; -} - -// return feature `i` from this layer as a `VectorTileFeature` -VectorTileLayer$2.prototype.feature = function(i) { - if (i < 0 || i >= this._features.length) { throw new Error('feature index out of bounds'); } - - this._pbf.pos = this._features[i]; - - var end = this._pbf.readVarint() + this._pbf.pos; - return new VectorTileFeature$1(this._pbf, end, this.extent, this._keys, this._values); -}; - -var VectorTileLayer$1 = vectortilelayer; - -var vectortile = VectorTile$1; - -function VectorTile$1(pbf, end) { - this.layers = pbf.readFields(readTile, {}, end); -} - -function readTile(tag, layers, pbf) { - if (tag === 3) { - var layer = new VectorTileLayer$1(pbf, pbf.readVarint() + pbf.pos); - if (layer.length) { layers[layer.name] = layer; } - } -} - -var VectorTile = vectortile; - -L.SVG.Tile = L.SVG.extend({ - - initialize: function (tileCoord, tileSize, options) { - L.SVG.prototype.initialize.call(this, options); - this._tileCoord = tileCoord; - this._size = tileSize; - - this._initContainer(); - this._container.setAttribute('width', this._size.x); - this._container.setAttribute('height', this._size.y); - this._container.setAttribute('viewBox', [0, 0, this._size.x, this._size.y].join(' ')); - - this._layers = {}; - }, - - getCoord: function() { - return this._tileCoord; - }, - - getContainer: function() { - return this._container; - }, - - onAdd: L.Util.falseFn, - - addTo: function(map) { - this._map = map; - if (this.options.interactive) { - for (var i in this._layers) { - var layer = this._layers[i]; - // By default, Leaflet tiles do not have pointer events. - layer._path.style.pointerEvents = 'auto'; - this._map._targets[L.stamp(layer._path)] = layer; - } - } - }, - - removeFrom: function (map) { - if (this.options.interactive) { - for (var i in this._layers) { - var layer = this._layers[i]; - delete this._map._targets[L.stamp(layer._path)]; - } - } - delete this._map; - }, - - _initContainer: function() { - L.SVG.prototype._initContainer.call(this); - var rect = L.SVG.create('rect'); - }, - - /// TODO: Modify _initPath to include an extra parameter, a group name - /// to order symbolizers by z-index - - _addPath: function (layer) { - this._rootGroup.appendChild(layer._path); - this._layers[L.stamp(layer)] = layer; - }, - - _updateIcon: function (layer) { - var path = layer._path = L.SVG.create('image'), - icon = layer.options.icon, - options = icon.options, - size = L.point(options.iconSize), - anchor = options.iconAnchor || - size && size.divideBy(2, true), - p = layer._point.subtract(anchor); - path.setAttribute('x', p.x); - path.setAttribute('y', p.y); - path.setAttribute('width', size.x + 'px'); - path.setAttribute('height', size.y + 'px'); - path.setAttribute('href', options.iconUrl); - } -}); - - -L.svg.tile = function(tileCoord, tileSize, opts){ - return new L.SVG.Tile(tileCoord, tileSize, opts); -}; - -// 🍂class Symbolizer -// 🍂inherits Class -// The abstract Symbolizer class is mostly equivalent in concept to a `L.Path` - it's an interface for -// polylines, polygons and circles. But instead of representing leaflet Layers, -// it represents things that have to be drawn inside a vector tile. - -// A vector tile *data layer* might have zero, one, or more *symbolizer definitions* -// A vector tile *feature* might have zero, one, or more *symbolizers*. -// The actual symbolizers applied will depend on filters and the symbolizer functions. - -var Symbolizer = L.Class.extend({ - // 🍂method initialize(feature: GeoJSON, pxPerExtent: Number) - // Initializes a new Line Symbolizer given a GeoJSON feature and the - // pixel-to-coordinate-units ratio. Internal use only. - - // 🍂method render(renderer, style) - // Renders this symbolizer in the given tiled renderer, with the given - // `L.Path` options. Internal use only. - render: function(renderer, style) { - this._renderer = renderer; - this.options = style; - renderer._initPath(this); - renderer._updateStyle(this); - }, - - // 🍂method render(renderer, style) - // Updates the `L.Path` options used to style this symbolizer, and re-renders it. - // Internal use only. - updateStyle: function(renderer, style) { - this.options = style; - renderer._updateStyle(this); - }, - - _getPixelBounds: function() { - var parts = this._parts; - var bounds = L.bounds([]); - for (var i = 0; i < parts.length; i++) { - var part = parts[i]; - for (var j = 0; j < part.length; j++) { - bounds.extend(part[j]); - } - } - - var w = this._clickTolerance(), - p = new L.Point(w, w); - - bounds.min._subtract(p); - bounds.max._add(p); - - return bounds; - }, - _clickTolerance: L.Path.prototype._clickTolerance, -}); - -// Contains mixins which are common to the Line Symbolizer and the Fill Symbolizer. - -var PolyBase = { - _makeFeatureParts: function(feat, pxPerExtent) { - var rings = feat.geometry; - var coord; - - this._parts = []; - for (var i = 0; i < rings.length; i++) { - var ring = rings[i]; - var part = []; - for (var j = 0; j < ring.length; j++) { - coord = ring[j]; - // Protobuf vector tiles return {x: , y:} - // Geojson-vt returns [,] - part.push(L.point(coord).scaleBy(pxPerExtent)); - } - this._parts.push(part); - } - }, - - makeInteractive: function() { - this._pxBounds = this._getPixelBounds(); - } -}; - -// 🍂class PointSymbolizer -// 🍂inherits CircleMarker -// A symbolizer for points. - -var PointSymbolizer = L.CircleMarker.extend({ - includes: Symbolizer.prototype, - - statics: { - iconCache: {} - }, - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - Symbolizer.prototype.render.call(this, renderer, style); - this._radius = style.radius || L.CircleMarker.prototype.options.radius; - this._updatePath(); - }, - - _makeFeatureParts: function(feat, pxPerExtent) { - var coord = feat.geometry[0]; - if (typeof coord[0] === 'object' && 'x' in coord[0]) { - // Protobuf vector tiles return [{x: , y:}] - this._point = L.point(coord[0]).scaleBy(pxPerExtent); - this._empty = L.Util.falseFn; - } else { - // Geojson-vt returns [,] - this._point = L.point(coord).scaleBy(pxPerExtent); - this._empty = L.Util.falseFn; - } - }, - - makeInteractive: function() { - this._updateBounds(); - }, - - updateStyle: function(renderer, style) { - this._radius = style.radius || this._radius; - this._updateBounds(); - return Symbolizer.prototype.updateStyle.call(this, renderer, style); - }, - - _updateBounds: function() { - var icon = this.options.icon; - if (icon) { - var size = L.point(icon.options.iconSize), - anchor = icon.options.iconAnchor || - size && size.divideBy(2, true), - p = this._point.subtract(anchor); - this._pxBounds = new L.Bounds(p, p.add(icon.options.iconSize)); - } else { - L.CircleMarker.prototype._updateBounds.call(this); - } - }, - - _updatePath: function() { - if (this.options.icon) { - this._renderer._updateIcon(this); - } else { - L.CircleMarker.prototype._updatePath.call(this); - } - }, - - _getImage: function () { - if (this.options.icon) { - var url = this.options.icon.options.iconUrl, - img = PointSymbolizer.iconCache[url]; - if (!img) { - var icon = this.options.icon; - img = PointSymbolizer.iconCache[url] = icon.createIcon(); - } - return img; - } else { - return null; - } - - }, - - _containsPoint: function(p) { - var icon = this.options.icon; - if (icon) { - return this._pxBounds.contains(p); - } else { - return L.CircleMarker.prototype._containsPoint.call(this, p); - } - } -}); - -// 🍂class LineSymbolizer -// 🍂inherits Polyline -// A symbolizer for lines. Can be applied to line and polygon features. - -var LineSymbolizer = L.Polyline.extend({ - includes: [Symbolizer.prototype, PolyBase], - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - style.fill = false; - Symbolizer.prototype.render.call(this, renderer, style); - this._updatePath(); - }, - - updateStyle: function(renderer, style) { - style.fill = false; - Symbolizer.prototype.updateStyle.call(this, renderer, style); - }, -}); - -// 🍂class FillSymbolizer -// 🍂inherits Polyline -// A symbolizer for filled areas. Applies only to polygon features. - -var FillSymbolizer = L.Polygon.extend({ - includes: [Symbolizer.prototype, PolyBase], - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - Symbolizer.prototype.render.call(this, renderer, style); - this._updatePath(); - } -}); - -/* 🍂class VectorGrid - * 🍂inherits GridLayer - * - * A `VectorGrid` is a generic, abstract class for displaying tiled vector data. - * it provides facilities for symbolizing and rendering the data in the vector - * tiles, but lacks the functionality to fetch the vector tiles from wherever - * they are. - * - * Extends Leaflet's `L.GridLayer`. - */ - -L.VectorGrid = L.GridLayer.extend({ - - options: { - // 🍂option rendererFactory = L.svg.tile - // A factory method which will be used to instantiate the per-tile renderers. - rendererFactory: L.svg.tile, - - // 🍂option vectorTileLayerStyles: Object = {} - // A data structure holding initial symbolizer definitions for the vector features. - vectorTileLayerStyles: {}, - - // 🍂option interactive: Boolean = false - // Whether this `VectorGrid` fires `Interactive Layer` events. - interactive: false, - - // 🍂option getFeatureId: Function = undefined - // A function that, given a vector feature, returns an unique identifier for it, e.g. - // `function(feat) { return feat.properties.uniqueIdField; }`. - // Must be defined for `setFeatureStyle` to work. - }, - - initialize: function(options) { - L.setOptions(this, options); - L.GridLayer.prototype.initialize.apply(this, arguments); - if (this.options.getFeatureId) { - this._vectorTiles = {}; - this._overriddenStyles = {}; - this.on('tileunload', function(e) { - var key = this._tileCoordsToKey(e.coords), - tile = this._vectorTiles[key]; - - if (tile && this._map) { - tile.removeFrom(this._map); - } - delete this._vectorTiles[key]; - }, this); - } - this._dataLayerNames = {}; - }, - - createTile: function(coords, done) { - var storeFeatures = this.options.getFeatureId; - - var tileSize = this.getTileSize(); - var renderer = this.options.rendererFactory(coords, tileSize, this.options); - - var vectorTilePromise = this._getVectorTilePromise(coords); - - if (storeFeatures) { - this._vectorTiles[this._tileCoordsToKey(coords)] = renderer; - renderer._features = {}; - } - - vectorTilePromise.then( function renderTile(vectorTile) { - for (var layerName in vectorTile.layers) { - this._dataLayerNames[layerName] = true; - var layer = vectorTile.layers[layerName]; - - var pxPerExtent = this.getTileSize().divideBy(layer.extent); - - var layerStyle = this.options.vectorTileLayerStyles[ layerName ] || - L.Path.prototype.options; - - for (var i = 0; i < layer.features.length; i++) { - var feat = layer.features[i]; - var id; - - var styleOptions = layerStyle; - if (storeFeatures) { - id = this.options.getFeatureId(feat); - var styleOverride = this._overriddenStyles[id]; - if (styleOverride) { - if (styleOverride[layerName]) { - styleOptions = styleOverride[layerName]; - } else { - styleOptions = styleOverride; - } - } - } - - if (styleOptions instanceof Function) { - styleOptions = styleOptions(feat.properties, coords.z); - } - - if (!(styleOptions instanceof Array)) { - styleOptions = [styleOptions]; - } - - if (!styleOptions.length) { - continue; - } - - var featureLayer = this._createLayer(feat, pxPerExtent); - - for (var j = 0; j < styleOptions.length; j++) { - var style = L.extend({}, L.Path.prototype.options, styleOptions[j]); - featureLayer.render(renderer, style); - renderer._addPath(featureLayer); - } - - if (this.options.interactive) { - featureLayer.makeInteractive(); - } - - if (storeFeatures) { - renderer._features[id] = { - layerName: layerName, - feature: featureLayer - }; - } - } - - } - if (this._map != null) { - renderer.addTo(this._map); - } - L.Util.requestAnimFrame(done.bind(coords, null, null)); - }.bind(this)); - - return renderer.getContainer(); - }, - - // 🍂method setFeatureStyle(id: Number, layerStyle: L.Path Options): this - // Given the unique ID for a vector features (as per the `getFeatureId` option), - // re-symbolizes that feature across all tiles it appears in. - setFeatureStyle: function(id, layerStyle) { - this._overriddenStyles[id] = layerStyle; - - for (var tileKey in this._vectorTiles) { - var tile = this._vectorTiles[tileKey]; - var features = tile._features; - var data = features[id]; - if (data) { - var feat = data.feature; - - var styleOptions = layerStyle; - if (layerStyle[data.layerName]) { - styleOptions = layerStyle[data.layerName]; - } - - this._updateStyles(feat, tile, styleOptions); - } - } - return this; - }, - - // 🍂method setFeatureStyle(id: Number): this - // Reverts the effects of a previous `setFeatureStyle` call. - resetFeatureStyle: function(id) { - delete this._overriddenStyles[id]; - - for (var tileKey in this._vectorTiles) { - var tile = this._vectorTiles[tileKey]; - var features = tile._features; - var data = features[id]; - if (data) { - var feat = data.feature; - var styleOptions = this.options.vectorTileLayerStyles[ data.layerName ] || - L.Path.prototype.options; - this._updateStyles(feat, tile, styleOptions); - } - } - return this; - }, - - // 🍂method getDataLayerNames(): Array - // Returns an array of strings, with all the known names of data layers in - // the vector tiles displayed. Useful for introspection. - getDataLayerNames: function() { - return Object.keys(this._dataLayerNames); - }, - - _updateStyles: function(feat, renderer, styleOptions) { - styleOptions = (styleOptions instanceof Function) ? - styleOptions(feat.properties, renderer.getCoord().z) : - styleOptions; - - if (!(styleOptions instanceof Array)) { - styleOptions = [styleOptions]; - } - - for (var j = 0; j < styleOptions.length; j++) { - var style = L.extend({}, L.Path.prototype.options, styleOptions[j]); - feat.updateStyle(renderer, style); - } - }, - - _createLayer: function(feat, pxPerExtent, layerStyle) { - var layer; - switch (feat.type) { - case 1: - layer = new PointSymbolizer(feat, pxPerExtent); - break; - case 2: - layer = new LineSymbolizer(feat, pxPerExtent); - break; - case 3: - layer = new FillSymbolizer(feat, pxPerExtent); - break; - } - - if (this.options.interactive) { - layer.addEventParent(this); - } - - return layer; - }, -}); - -/* - * 🍂section Extension methods - * - * Classes inheriting from `VectorGrid` **must** define the `_getVectorTilePromise` private method. - * - * 🍂method getVectorTilePromise(coords: Object): Promise - * Given a `coords` object in the form of `{x: Number, y: Number, z: Number}`, - * this function must return a `Promise` for a vector tile. - * - */ -L.vectorGrid = function (options) { - return new L.VectorGrid(options); -}; - -/* - * 🍂class VectorGrid.Protobuf - * 🍂extends VectorGrid - * - * A `VectorGrid` for vector tiles fetched from the internet. - * Tiles are supposed to be protobufs (AKA "protobuffer" or "Protocol Buffers"), - * containing data which complies with the - * [MapBox Vector Tile Specification](https://github.com/mapbox/vector-tile-spec/tree/master/2.1). - * - * This is the format used by: - * - Mapbox Vector Tiles - * - Mapzen Vector Tiles - * - ESRI Vector Tiles - * - [OpenMapTiles hosted Vector Tiles](https://openmaptiles.com/hosting/) - * - * 🍂example - * - * You must initialize a `VectorGrid.Protobuf` with a URL template, just like in - * `L.TileLayer`s. The difference is that the template must point to vector tiles - * (usually `.pbf` or `.mvt`) instead of raster (`.png` or `.jpg`) tiles, and that - * you should define the styling for all the features. - * - *

- * - * For OpenMapTiles, with a key from [https://openmaptiles.org/docs/host/use-cdn/](https://openmaptiles.org/docs/host/use-cdn/), - * initialization looks like this: - * - * ``` - * L.vectorGrid.protobuf("https://free-{s}.tilehosting.com/data/v3/{z}/{x}/{y}.pbf.pict?key={key}", { - * vectorTileLayerStyles: { ... }, - * subdomains: "0123", - * key: 'abcdefghi01234567890', - * maxNativeZoom: 14 - * }).addTo(map); - * ``` - * - * And for Mapbox vector tiles, it looks like this: - * - * ``` - * L.vectorGrid.protobuf("https://{s}.tiles.mapbox.com/v4/mapbox.mapbox-streets-v6/{z}/{x}/{y}.vector.pbf?access_token={token}", { - * vectorTileLayerStyles: { ... }, - * subdomains: "abcd", - * token: "pk.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRTS.TUVWXTZ0123456789abcde" - * }).addTo(map); - * ``` - */ -L.VectorGrid.Protobuf = L.VectorGrid.extend({ - - options: { - // 🍂section - // As with `L.TileLayer`, the URL template might contain a reference to - // any option (see the example above and note the `{key}` or `token` in the URL - // template, and the corresponding option). - // - // 🍂option subdomains: String = 'abc' - // Akin to the `subdomains` option for `L.TileLayer`. - subdomains: 'abc', // Like L.TileLayer - // - // 🍂option fetchOptions: Object = {} - // options passed to `fetch`, e.g. {credentials: 'same-origin'} to send cookie for the current domain - fetchOptions: {} - }, - - initialize: function(url, options) { - // Inherits options from geojson-vt! -// this._slicer = geojsonvt(geojson, options); - this._url = url; - L.VectorGrid.prototype.initialize.call(this, options); - }, - - // 🍂method setUrl(url: String, noRedraw?: Boolean): this - // Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`). - setUrl: function(url, noRedraw) { - this._url = url; - - if (!noRedraw) { - this.redraw(); - } - - return this; - }, - - _getSubdomain: L.TileLayer.prototype._getSubdomain, - - _getVectorTilePromise: function(coords) { - var data = { - s: this._getSubdomain(coords), - x: coords.x, - y: coords.y, - z: coords.z -// z: this._getZoomForUrl() /// TODO: Maybe replicate TileLayer's maxNativeZoom - }; - if (this._map && !this._map.options.crs.infinite) { - var invertedY = this._globalTileRange.max.y - coords.y; - if (this.options.tms) { // Should this option be available in Leaflet.VectorGrid? - data['y'] = invertedY; - } - data['-y'] = invertedY; - } - - var tileUrl = L.Util.template(this._url, L.extend(data, this.options)); - - return fetch(tileUrl, this.options.fetchOptions).then(function(response){ - - if (!response.ok) { - return {layers:[]}; - } - - return response.blob().then( function (blob) { -// console.log(blob); - - var reader = new FileReader(); - return new Promise(function(resolve){ - reader.addEventListener("loadend", function() { - // reader.result contains the contents of blob as a typed array - - // blob.type === 'application/x-protobuf' - var pbf = new index( reader.result ); -// console.log(pbf); - return resolve(new VectorTile( pbf )); - - }); - reader.readAsArrayBuffer(blob); - }); - }); - }).then(function(json){ - -// console.log('Vector tile:', json.layers); -// console.log('Vector tile water:', json.layers.water); // Instance of VectorTileLayer - - // Normalize feature getters into actual instanced features - for (var layerName in json.layers) { - var feats = []; - - for (var i=0; i maxSqDist) {\n index = i;\n maxSqDist = sqDist;\n }\n }\n\n if (maxSqDist > sqTolerance) {\n points[index][2] = maxSqDist; // save the point importance in squared pixels as a z coordinate\n stack.push(first);\n stack.push(index);\n first = index;\n\n } else {\n last = stack.pop();\n first = stack.pop();\n }\n }\n}\n\n// square distance from a point to a segment\nfunction getSqSegDist(p, a, b) {\n\n var x = a[0], y = a[1],\n bx = b[0], by = b[1],\n px = p[0], py = p[1],\n dx = bx - x,\n dy = by - y;\n\n if (dx !== 0 || dy !== 0) {\n\n var t = ((px - x) * dx + (py - y) * dy) / (dx * dx + dy * dy);\n\n if (t > 1) {\n x = bx;\n y = by;\n\n } else if (t > 0) {\n x += dx * t;\n y += dy * t;\n }\n }\n\n dx = px - x;\n dy = py - y;\n\n return dx * dx + dy * dy;\n}\n\nvar convert_1 = convert$1;\n\nvar simplify = simplify_1;\n\n// converts GeoJSON feature into an intermediate projected JSON vector format with simplification data\n\nfunction convert$1(data, tolerance) {\n var features = [];\n\n if (data.type === 'FeatureCollection') {\n for (var i = 0; i < data.features.length; i++) {\n convertFeature(features, data.features[i], tolerance);\n }\n } else if (data.type === 'Feature') {\n convertFeature(features, data, tolerance);\n\n } else {\n // single geometry or a geometry collection\n convertFeature(features, {geometry: data}, tolerance);\n }\n return features;\n}\n\nfunction convertFeature(features, feature, tolerance) {\n if (feature.geometry === null) {\n // ignore features with null geometry\n return;\n }\n\n var geom = feature.geometry,\n type = geom.type,\n coords = geom.coordinates,\n tags = feature.properties,\n i, j, rings, projectedRing;\n\n if (type === 'Point') {\n features.push(create(tags, 1, [projectPoint(coords)]));\n\n } else if (type === 'MultiPoint') {\n features.push(create(tags, 1, project(coords)));\n\n } else if (type === 'LineString') {\n features.push(create(tags, 2, [project(coords, tolerance)]));\n\n } else if (type === 'MultiLineString' || type === 'Polygon') {\n rings = [];\n for (i = 0; i < coords.length; i++) {\n projectedRing = project(coords[i], tolerance);\n if (type === 'Polygon') { projectedRing.outer = (i === 0); }\n rings.push(projectedRing);\n }\n features.push(create(tags, type === 'Polygon' ? 3 : 2, rings));\n\n } else if (type === 'MultiPolygon') {\n rings = [];\n for (i = 0; i < coords.length; i++) {\n for (j = 0; j < coords[i].length; j++) {\n projectedRing = project(coords[i][j], tolerance);\n projectedRing.outer = (j === 0);\n rings.push(projectedRing);\n }\n }\n features.push(create(tags, 3, rings));\n\n } else if (type === 'GeometryCollection') {\n for (i = 0; i < geom.geometries.length; i++) {\n convertFeature(features, {\n geometry: geom.geometries[i],\n properties: tags\n }, tolerance);\n }\n\n } else {\n throw new Error('Input data is not a valid GeoJSON object.');\n }\n}\n\nfunction create(tags, type, geometry) {\n var feature = {\n geometry: geometry,\n type: type,\n tags: tags || null,\n min: [2, 1], // initial bbox values;\n max: [-1, 0] // note that coords are usually in [0..1] range\n };\n calcBBox(feature);\n return feature;\n}\n\nfunction project(lonlats, tolerance) {\n var projected = [];\n for (var i = 0; i < lonlats.length; i++) {\n projected.push(projectPoint(lonlats[i]));\n }\n if (tolerance) {\n simplify(projected, tolerance);\n calcSize(projected);\n }\n return projected;\n}\n\nfunction projectPoint(p) {\n var sin = Math.sin(p[1] * Math.PI / 180),\n x = (p[0] / 360 + 0.5),\n y = (0.5 - 0.25 * Math.log((1 + sin) / (1 - sin)) / Math.PI);\n\n y = y < 0 ? 0 :\n y > 1 ? 1 : y;\n\n return [x, y, 0];\n}\n\n// calculate area and length of the poly\nfunction calcSize(points) {\n var area = 0,\n dist = 0;\n\n for (var i = 0, a, b; i < points.length - 1; i++) {\n a = b || points[i];\n b = points[i + 1];\n\n area += a[0] * b[1] - b[0] * a[1];\n\n // use Manhattan distance instead of Euclidian one to avoid expensive square root computation\n dist += Math.abs(b[0] - a[0]) + Math.abs(b[1] - a[1]);\n }\n points.area = Math.abs(area / 2);\n points.dist = dist;\n}\n\n// calculate the feature bounding box for faster clipping later\nfunction calcBBox(feature) {\n var geometry = feature.geometry,\n min = feature.min,\n max = feature.max;\n\n if (feature.type === 1) { calcRingBBox(min, max, geometry); }\n else { for (var i = 0; i < geometry.length; i++) { calcRingBBox(min, max, geometry[i]); } }\n\n return feature;\n}\n\nfunction calcRingBBox(min, max, points) {\n for (var i = 0, p; i < points.length; i++) {\n p = points[i];\n min[0] = Math.min(p[0], min[0]);\n max[0] = Math.max(p[0], max[0]);\n min[1] = Math.min(p[1], min[1]);\n max[1] = Math.max(p[1], max[1]);\n }\n}\n\nvar tile = transformTile;\nvar point = transformPoint;\n\n// Transforms the coordinates of each feature in the given tile from\n// mercator-projected space into (extent x extent) tile space.\nfunction transformTile(tile, extent) {\n if (tile.transformed) { return tile; }\n\n var z2 = tile.z2,\n tx = tile.x,\n ty = tile.y,\n i, j, k;\n\n for (i = 0; i < tile.features.length; i++) {\n var feature = tile.features[i],\n geom = feature.geometry,\n type = feature.type;\n\n if (type === 1) {\n for (j = 0; j < geom.length; j++) { geom[j] = transformPoint(geom[j], extent, z2, tx, ty); }\n\n } else {\n for (j = 0; j < geom.length; j++) {\n var ring = geom[j];\n for (k = 0; k < ring.length; k++) { ring[k] = transformPoint(ring[k], extent, z2, tx, ty); }\n }\n }\n }\n\n tile.transformed = true;\n\n return tile;\n}\n\nfunction transformPoint(p, extent, z2, tx, ty) {\n var x = Math.round(extent * (p[0] * z2 - tx)),\n y = Math.round(extent * (p[1] * z2 - ty));\n return [x, y];\n}\n\nvar transform$1 = {\n tile: tile,\n point: point\n};\n\nvar clip_1 = clip$1;\n\n/* clip features between two axis-parallel lines:\n * | |\n * ___|___ | /\n * / | \____|____/\n * | |\n */\n\nfunction clip$1(features, scale, k1, k2, axis, intersect, minAll, maxAll) {\n\n k1 /= scale;\n k2 /= scale;\n\n if (minAll >= k1 && maxAll <= k2) { return features; } // trivial accept\n else if (minAll > k2 || maxAll < k1) { return null; } // trivial reject\n\n var clipped = [];\n\n for (var i = 0; i < features.length; i++) {\n\n var feature = features[i],\n geometry = feature.geometry,\n type = feature.type,\n min, max;\n\n min = feature.min[axis];\n max = feature.max[axis];\n\n if (min >= k1 && max <= k2) { // trivial accept\n clipped.push(feature);\n continue;\n } else if (min > k2 || max < k1) { continue; } // trivial reject\n\n var slices = type === 1 ?\n clipPoints(geometry, k1, k2, axis) :\n clipGeometry(geometry, k1, k2, axis, intersect, type === 3);\n\n if (slices.length) {\n // if a feature got clipped, it will likely get clipped on the next zoom level as well,\n // so there's no need to recalculate bboxes\n clipped.push({\n geometry: slices,\n type: type,\n tags: features[i].tags || null,\n min: feature.min,\n max: feature.max\n });\n }\n }\n\n return clipped.length ? clipped : null;\n}\n\nfunction clipPoints(geometry, k1, k2, axis) {\n var slice = [];\n\n for (var i = 0; i < geometry.length; i++) {\n var a = geometry[i],\n ak = a[axis];\n\n if (ak >= k1 && ak <= k2) { slice.push(a); }\n }\n return slice;\n}\n\nfunction clipGeometry(geometry, k1, k2, axis, intersect, closed) {\n\n var slices = [];\n\n for (var i = 0; i < geometry.length; i++) {\n\n var ak = 0,\n bk = 0,\n b = null,\n points = geometry[i],\n area = points.area,\n dist = points.dist,\n outer = points.outer,\n len = points.length,\n a, j, last;\n\n var slice = [];\n\n for (j = 0; j < len - 1; j++) {\n a = b || points[j];\n b = points[j + 1];\n ak = bk || a[axis];\n bk = b[axis];\n\n if (ak < k1) {\n\n if ((bk > k2)) { // ---|-----|-->\n slice.push(intersect(a, b, k1), intersect(a, b, k2));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk >= k1) { slice.push(intersect(a, b, k1)); } // ---|--> |\n\n } else if (ak > k2) {\n\n if ((bk < k1)) { // <--|-----|---\n slice.push(intersect(a, b, k2), intersect(a, b, k1));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk <= k2) { slice.push(intersect(a, b, k2)); } // | <--|---\n\n } else {\n\n slice.push(a);\n\n if (bk < k1) { // <--|--- |\n slice.push(intersect(a, b, k1));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk > k2) { // | ---|-->\n slice.push(intersect(a, b, k2));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n }\n // | --> |\n }\n }\n\n // add the last point\n a = points[len - 1];\n ak = a[axis];\n if (ak >= k1 && ak <= k2) { slice.push(a); }\n\n // close the polygon if its endpoints are not the same after clipping\n\n last = slice[slice.length - 1];\n if (closed && last && (slice[0][0] !== last[0] || slice[0][1] !== last[1])) { slice.push(slice[0]); }\n\n // add the final slice\n newSlice(slices, slice, area, dist, outer);\n }\n\n return slices;\n}\n\nfunction newSlice(slices, slice, area, dist, outer) {\n if (slice.length) {\n // we don't recalculate the area/length of the unclipped geometry because the case where it goes\n // below the visibility threshold as a result of clipping is rare, so we avoid doing unnecessary work\n slice.area = area;\n slice.dist = dist;\n if (outer !== undefined) { slice.outer = outer; }\n\n slices.push(slice);\n }\n return [];\n}\n\nvar clip$2 = clip_1;\n\nvar wrap_1 = wrap$1;\n\nfunction wrap$1(features, buffer, intersectX) {\n var merged = features,\n left = clip$2(features, 1, -1 - buffer, buffer, 0, intersectX, -1, 2), // left world copy\n right = clip$2(features, 1, 1 - buffer, 2 + buffer, 0, intersectX, -1, 2); // right world copy\n\n if (left || right) {\n merged = clip$2(features, 1, -buffer, 1 + buffer, 0, intersectX, -1, 2); // center world copy\n\n if (left) { merged = shiftFeatureCoords(left, 1).concat(merged); } // merge left into center\n if (right) { merged = merged.concat(shiftFeatureCoords(right, -1)); } // merge right into center\n }\n\n return merged;\n}\n\nfunction shiftFeatureCoords(features, offset) {\n var newFeatures = [];\n\n for (var i = 0; i < features.length; i++) {\n var feature = features[i],\n type = feature.type;\n\n var newGeometry;\n\n if (type === 1) {\n newGeometry = shiftCoords(feature.geometry, offset);\n } else {\n newGeometry = [];\n for (var j = 0; j < feature.geometry.length; j++) {\n newGeometry.push(shiftCoords(feature.geometry[j], offset));\n }\n }\n\n newFeatures.push({\n geometry: newGeometry,\n type: type,\n tags: feature.tags,\n min: [feature.min[0] + offset, feature.min[1]],\n max: [feature.max[0] + offset, feature.max[1]]\n });\n }\n\n return newFeatures;\n}\n\nfunction shiftCoords(points, offset) {\n var newPoints = [];\n newPoints.area = points.area;\n newPoints.dist = points.dist;\n\n for (var i = 0; i < points.length; i++) {\n newPoints.push([points[i][0] + offset, points[i][1], points[i][2]]);\n }\n return newPoints;\n}\n\nvar tile$1 = createTile$1;\n\nfunction createTile$1(features, z2, tx, ty, tolerance, noSimplify) {\n var tile = {\n features: [],\n numPoints: 0,\n numSimplified: 0,\n numFeatures: 0,\n source: null,\n x: tx,\n y: ty,\n z2: z2,\n transformed: false,\n min: [2, 1],\n max: [-1, 0]\n };\n for (var i = 0; i < features.length; i++) {\n tile.numFeatures++;\n addFeature(tile, features[i], tolerance, noSimplify);\n\n var min = features[i].min,\n max = features[i].max;\n\n if (min[0] < tile.min[0]) { tile.min[0] = min[0]; }\n if (min[1] < tile.min[1]) { tile.min[1] = min[1]; }\n if (max[0] > tile.max[0]) { tile.max[0] = max[0]; }\n if (max[1] > tile.max[1]) { tile.max[1] = max[1]; }\n }\n return tile;\n}\n\nfunction addFeature(tile, feature, tolerance, noSimplify) {\n\n var geom = feature.geometry,\n type = feature.type,\n simplified = [],\n sqTolerance = tolerance * tolerance,\n i, j, ring, p;\n\n if (type === 1) {\n for (i = 0; i < geom.length; i++) {\n simplified.push(geom[i]);\n tile.numPoints++;\n tile.numSimplified++;\n }\n\n } else {\n\n // simplify and transform projected coordinates for tile geometry\n for (i = 0; i < geom.length; i++) {\n ring = geom[i];\n\n // filter out tiny polylines & polygons\n if (!noSimplify && ((type === 2 && ring.dist < tolerance) ||\n (type === 3 && ring.area < sqTolerance))) {\n tile.numPoints += ring.length;\n continue;\n }\n\n var simplifiedRing = [];\n\n for (j = 0; j < ring.length; j++) {\n p = ring[j];\n // keep points with importance > tolerance\n if (noSimplify || p[2] > sqTolerance) {\n simplifiedRing.push(p);\n tile.numSimplified++;\n }\n tile.numPoints++;\n }\n\n if (type === 3) { rewind(simplifiedRing, ring.outer); }\n\n simplified.push(simplifiedRing);\n }\n }\n\n if (simplified.length) {\n tile.features.push({\n geometry: simplified,\n type: type,\n tags: feature.tags || null\n });\n }\n}\n\nfunction rewind(ring, clockwise) {\n var area = signedArea(ring);\n if (area < 0 === clockwise) { ring.reverse(); }\n}\n\nfunction signedArea(ring) {\n var sum = 0;\n for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) {\n p1 = ring[i];\n p2 = ring[j];\n sum += (p2[0] - p1[0]) * (p1[1] + p2[1]);\n }\n return sum;\n}\n\nvar index = geojsonvt;\n\nvar convert = convert_1;\nvar transform = transform$1;\nvar clip = clip_1;\nvar wrap = wrap_1;\nvar createTile = tile$1; // final simplified tile generation\n\n\nfunction geojsonvt(data, options) {\n return new GeoJSONVT(data, options);\n}\n\nfunction GeoJSONVT(data, options) {\n options = this.options = extend(Object.create(this.options), options);\n\n var debug = options.debug;\n\n if (debug) { console.time('preprocess data'); }\n\n var z2 = 1 << options.maxZoom, // 2^z\n features = convert(data, options.tolerance / (z2 * options.extent));\n\n this.tiles = {};\n this.tileCoords = [];\n\n if (debug) {\n console.timeEnd('preprocess data');\n console.log('index: maxZoom: %d, maxPoints: %d', options.indexMaxZoom, options.indexMaxPoints);\n console.time('generate tiles');\n this.stats = {};\n this.total = 0;\n }\n\n features = wrap(features, options.buffer / options.extent, intersectX);\n\n // start slicing from the top tile down\n if (features.length) { this.splitTile(features, 0, 0, 0); }\n\n if (debug) {\n if (features.length) { console.log('features: %d, points: %d', this.tiles[0].numFeatures, this.tiles[0].numPoints); }\n console.timeEnd('generate tiles');\n console.log('tiles generated:', this.total, JSON.stringify(this.stats));\n }\n}\n\nGeoJSONVT.prototype.options = {\n maxZoom: 14, // max zoom to preserve detail on\n indexMaxZoom: 5, // max zoom in the tile index\n indexMaxPoints: 100000, // max number of points per tile in the tile index\n solidChildren: false, // whether to tile solid square tiles further\n tolerance: 3, // simplification tolerance (higher means simpler)\n extent: 4096, // tile extent\n buffer: 64, // tile buffer on each side\n debug: 0 // logging level (0, 1 or 2)\n};\n\nGeoJSONVT.prototype.splitTile = function (features, z, x, y, cz, cx, cy) {\n var this$1 = this;\n\n\n var stack = [features, z, x, y],\n options = this.options,\n debug = options.debug,\n solid = null;\n\n // avoid recursion by using a processing queue\n while (stack.length) {\n y = stack.pop();\n x = stack.pop();\n z = stack.pop();\n features = stack.pop();\n\n var z2 = 1 << z,\n id = toID(z, x, y),\n tile = this$1.tiles[id],\n tileTolerance = z === options.maxZoom ? 0 : options.tolerance / (z2 * options.extent);\n\n if (!tile) {\n if (debug > 1) { console.time('creation'); }\n\n tile = this$1.tiles[id] = createTile(features, z2, x, y, tileTolerance, z === options.maxZoom);\n this$1.tileCoords.push({z: z, x: x, y: y});\n\n if (debug) {\n if (debug > 1) {\n console.log('tile z%d-%d-%d (features: %d, points: %d, simplified: %d)',\n z, x, y, tile.numFeatures, tile.numPoints, tile.numSimplified);\n console.timeEnd('creation');\n }\n var key = 'z' + z;\n this$1.stats[key] = (this$1.stats[key] || 0) + 1;\n this$1.total++;\n }\n }\n\n // save reference to original geometry in tile so that we can drill down later if we stop now\n tile.source = features;\n\n // if it's the first-pass tiling\n if (!cz) {\n // stop tiling if we reached max zoom, or if the tile is too simple\n if (z === options.indexMaxZoom || tile.numPoints <= options.indexMaxPoints) { continue; }\n\n // if a drilldown to a specific tile\n } else {\n // stop tiling if we reached base zoom or our target tile zoom\n if (z === options.maxZoom || z === cz) { continue; }\n\n // stop tiling if it's not an ancestor of the target tile\n var m = 1 << (cz - z);\n if (x !== Math.floor(cx / m) || y !== Math.floor(cy / m)) { continue; }\n }\n\n // stop tiling if the tile is solid clipped square\n if (!options.solidChildren && isClippedSquare(tile, options.extent, options.buffer)) {\n if (cz) { solid = z; } // and remember the zoom if we're drilling down\n continue;\n }\n\n // if we slice further down, no need to keep source geometry\n tile.source = null;\n\n if (debug > 1) { console.time('clipping'); }\n\n // values we'll use for clipping\n var k1 = 0.5 * options.buffer / options.extent,\n k2 = 0.5 - k1,\n k3 = 0.5 + k1,\n k4 = 1 + k1,\n tl, bl, tr, br, left, right;\n\n tl = bl = tr = br = null;\n\n left = clip(features, z2, x - k1, x + k3, 0, intersectX, tile.min[0], tile.max[0]);\n right = clip(features, z2, x + k2, x + k4, 0, intersectX, tile.min[0], tile.max[0]);\n\n if (left) {\n tl = clip(left, z2, y - k1, y + k3, 1, intersectY, tile.min[1], tile.max[1]);\n bl = clip(left, z2, y + k2, y + k4, 1, intersectY, tile.min[1], tile.max[1]);\n }\n\n if (right) {\n tr = clip(right, z2, y - k1, y + k3, 1, intersectY, tile.min[1], tile.max[1]);\n br = clip(right, z2, y + k2, y + k4, 1, intersectY, tile.min[1], tile.max[1]);\n }\n\n if (debug > 1) { console.timeEnd('clipping'); }\n\n if (tl) { stack.push(tl, z + 1, x * 2, y * 2); }\n if (bl) { stack.push(bl, z + 1, x * 2, y * 2 + 1); }\n if (tr) { stack.push(tr, z + 1, x * 2 + 1, y * 2); }\n if (br) { stack.push(br, z + 1, x * 2 + 1, y * 2 + 1); }\n }\n\n return solid;\n};\n\nGeoJSONVT.prototype.getTile = function (z, x, y) {\n var this$1 = this;\n\n var options = this.options,\n extent = options.extent,\n debug = options.debug;\n\n var z2 = 1 << z;\n x = ((x % z2) + z2) % z2; // wrap tile x coordinate\n\n var id = toID(z, x, y);\n if (this.tiles[id]) { return transform.tile(this.tiles[id], extent); }\n\n if (debug > 1) { console.log('drilling down to z%d-%d-%d', z, x, y); }\n\n var z0 = z,\n x0 = x,\n y0 = y,\n parent;\n\n while (!parent && z0 > 0) {\n z0--;\n x0 = Math.floor(x0 / 2);\n y0 = Math.floor(y0 / 2);\n parent = this$1.tiles[toID(z0, x0, y0)];\n }\n\n if (!parent || !parent.source) { return null; }\n\n // if we found a parent tile containing the original geometry, we can drill down from it\n if (debug > 1) { console.log('found parent tile z%d-%d-%d', z0, x0, y0); }\n\n // it parent tile is a solid clipped square, return it instead since it's identical\n if (isClippedSquare(parent, extent, options.buffer)) { return transform.tile(parent, extent); }\n\n if (debug > 1) { console.time('drilling down'); }\n var solid = this.splitTile(parent.source, z0, x0, y0, z, x, y);\n if (debug > 1) { console.timeEnd('drilling down'); }\n\n // one of the parent tiles was a solid clipped square\n if (solid !== null) {\n var m = 1 << (z - solid);\n id = toID(solid, Math.floor(x / m), Math.floor(y / m));\n }\n\n return this.tiles[id] ? transform.tile(this.tiles[id], extent) : null;\n};\n\nfunction toID(z, x, y) {\n return (((1 << z) * y + x) * 32) + z;\n}\n\nfunction intersectX(a, b, x) {\n return [x, (x - a[0]) * (b[1] - a[1]) / (b[0] - a[0]) + a[1], 1];\n}\nfunction intersectY(a, b, y) {\n return [(y - a[1]) * (b[0] - a[0]) / (b[1] - a[1]) + a[0], y, 1];\n}\n\nfunction extend(dest, src) {\n for (var i in src) { dest[i] = src[i]; }\n return dest;\n}\n\n// checks whether a tile is a whole-area fill after clipping; if it is, there's no sense slicing it further\nfunction isClippedSquare(tile, extent, buffer) {\n\n var features = tile.source;\n if (features.length !== 1) { return false; }\n\n var feature = features[0];\n if (feature.type !== 3 || feature.geometry.length > 1) { return false; }\n\n var len = feature.geometry[0].length;\n if (len !== 5) { return false; }\n\n for (var i = 0; i < len; i++) {\n var p = transform.point(feature.geometry[0][i], extent, tile.z2, tile.x, tile.y);\n if ((p[0] !== -buffer && p[0] !== extent + buffer) ||\n (p[1] !== -buffer && p[1] !== extent + buffer)) { return false; }\n }\n\n return true;\n}\n\nvar identity = function(x) {\n return x;\n};\n\nvar transform$3 = function(topology) {\n if ((transform = topology.transform) == null) { return identity; }\n var transform,\n x0,\n y0,\n kx = transform.scale[0],\n ky = transform.scale[1],\n dx = transform.translate[0],\n dy = transform.translate[1];\n return function(point, i) {\n if (!i) { x0 = y0 = 0; }\n point[0] = (x0 += point[0]) * kx + dx;\n point[1] = (y0 += point[1]) * ky + dy;\n return point;\n };\n};\n\nvar bbox = function(topology) {\n var bbox = topology.bbox;\n\n function bboxPoint(p0) {\n p1[0] = p0[0], p1[1] = p0[1], t(p1);\n if (p1[0] < x0) { x0 = p1[0]; }\n if (p1[0] > x1) { x1 = p1[0]; }\n if (p1[1] < y0) { y0 = p1[1]; }\n if (p1[1] > y1) { y1 = p1[1]; }\n }\n\n function bboxGeometry(o) {\n switch (o.type) {\n case \"GeometryCollection\": o.geometries.forEach(bboxGeometry); break;\n case \"Point\": bboxPoint(o.coordinates); break;\n case \"MultiPoint\": o.coordinates.forEach(bboxPoint); break;\n }\n }\n\n if (!bbox) {\n var t = transform$3(topology), p0, p1 = new Array(2), name,\n x0 = Infinity, y0 = x0, x1 = -x0, y1 = -x0;\n\n topology.arcs.forEach(function(arc) {\n var i = -1, n = arc.length;\n while (++i < n) {\n p0 = arc[i], p1[0] = p0[0], p1[1] = p0[1], t(p1, i);\n if (p1[0] < x0) { x0 = p1[0]; }\n if (p1[0] > x1) { x1 = p1[0]; }\n if (p1[1] < y0) { y0 = p1[1]; }\n if (p1[1] > y1) { y1 = p1[1]; }\n }\n });\n\n for (name in topology.objects) {\n bboxGeometry(topology.objects[name]);\n }\n\n bbox = topology.bbox = [x0, y0, x1, y1];\n }\n\n return bbox;\n};\n\nvar reverse = function(array, n) {\n var t, j = array.length, i = j - n;\n while (i < --j) { t = array[i], array[i++] = array[j], array[j] = t; }\n};\n\nvar feature = function(topology, o) {\n return o.type === \"GeometryCollection\"\n ? {type: \"FeatureCollection\", features: o.geometries.map(function(o) { return feature$1(topology, o); })}\n : feature$1(topology, o);\n};\n\nfunction feature$1(topology, o) {\n var id = o.id,\n bbox = o.bbox,\n properties = o.properties == null ? {} : o.properties,\n geometry = object(topology, o);\n return id == null && bbox == null ? {type: \"Feature\", properties: properties, geometry: geometry}\n : bbox == null ? {type: \"Feature\", id: id, properties: properties, geometry: geometry}\n : {type: \"Feature\", id: id, bbox: bbox, properties: properties, geometry: geometry};\n}\n\nfunction object(topology, o) {\n var transformPoint = transform$3(topology),\n arcs = topology.arcs;\n\n function arc(i, points) {\n if (points.length) { points.pop(); }\n for (var a = arcs[i < 0 ? ~i : i], k = 0, n = a.length; k < n; ++k) {\n points.push(transformPoint(a[k].slice(), k));\n }\n if (i < 0) { reverse(points, n); }\n }\n\n function point(p) {\n return transformPoint(p.slice());\n }\n\n function line(arcs) {\n var points = [];\n for (var i = 0, n = arcs.length; i < n; ++i) { arc(arcs[i], points); }\n if (points.length < 2) { points.push(points[0].slice()); }\n return points;\n }\n\n function ring(arcs) {\n var points = line(arcs);\n while (points.length < 4) { points.push(points[0].slice()); }\n return points;\n }\n\n function polygon(arcs) {\n return arcs.map(ring);\n }\n\n function geometry(o) {\n var type = o.type, coordinates;\n switch (type) {\n case \"GeometryCollection\": return {type: type, geometries: o.geometries.map(geometry)};\n case \"Point\": coordinates = point(o.coordinates); break;\n case \"MultiPoint\": coordinates = o.coordinates.map(point); break;\n case \"LineString\": coordinates = line(o.arcs); break;\n case \"MultiLineString\": coordinates = o.arcs.map(line); break;\n case \"Polygon\": coordinates = polygon(o.arcs); break;\n case \"MultiPolygon\": coordinates = o.arcs.map(polygon); break;\n default: return null;\n }\n return {type: type, coordinates: coordinates};\n }\n\n return geometry(o);\n}\n\nvar stitch = function(topology, arcs) {\n var stitchedArcs = {},\n fragmentByStart = {},\n fragmentByEnd = {},\n fragments = [],\n emptyIndex = -1;\n\n // Stitch empty arcs first, since they may be subsumed by other arcs.\n arcs.forEach(function(i, j) {\n var arc = topology.arcs[i < 0 ? ~i : i], t;\n if (arc.length < 3 && !arc[1][0] && !arc[1][1]) {\n t = arcs[++emptyIndex], arcs[emptyIndex] = i, arcs[j] = t;\n }\n });\n\n arcs.forEach(function(i) {\n var e = ends(i),\n start = e[0],\n end = e[1],\n f, g;\n\n if (f = fragmentByEnd[start]) {\n delete fragmentByEnd[f.end];\n f.push(i);\n f.end = end;\n if (g = fragmentByStart[end]) {\n delete fragmentByStart[g.start];\n var fg = g === f ? f : f.concat(g);\n fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.end] = fg;\n } else {\n fragmentByStart[f.start] = fragmentByEnd[f.end] = f;\n }\n } else if (f = fragmentByStart[end]) {\n delete fragmentByStart[f.start];\n f.unshift(i);\n f.start = start;\n if (g = fragmentByEnd[start]) {\n delete fragmentByEnd[g.end];\n var gf = g === f ? f : g.concat(f);\n fragmentByStart[gf.start = g.start] = fragmentByEnd[gf.end = f.end] = gf;\n } else {\n fragmentByStart[f.start] = fragmentByEnd[f.end] = f;\n }\n } else {\n f = [i];\n fragmentByStart[f.start = start] = fragmentByEnd[f.end = end] = f;\n }\n });\n\n function ends(i) {\n var arc = topology.arcs[i < 0 ? ~i : i], p0 = arc[0], p1;\n if (topology.transform) { p1 = [0, 0], arc.forEach(function(dp) { p1[0] += dp[0], p1[1] += dp[1]; }); }\n else { p1 = arc[arc.length - 1]; }\n return i < 0 ? [p1, p0] : [p0, p1];\n }\n\n function flush(fragmentByEnd, fragmentByStart) {\n for (var k in fragmentByEnd) {\n var f = fragmentByEnd[k];\n delete fragmentByStart[f.start];\n delete f.start;\n delete f.end;\n f.forEach(function(i) { stitchedArcs[i < 0 ? ~i : i] = 1; });\n fragments.push(f);\n }\n }\n\n flush(fragmentByEnd, fragmentByStart);\n flush(fragmentByStart, fragmentByEnd);\n arcs.forEach(function(i) { if (!stitchedArcs[i < 0 ? ~i : i]) { fragments.push([i]); } });\n\n return fragments;\n};\n\nfunction extractArcs(topology, object$$1, filter) {\n var arcs = [],\n geomsByArc = [],\n geom;\n\n function extract0(i) {\n var j = i < 0 ? ~i : i;\n (geomsByArc[j] || (geomsByArc[j] = [])).push({i: i, g: geom});\n }\n\n function extract1(arcs) {\n arcs.forEach(extract0);\n }\n\n function extract2(arcs) {\n arcs.forEach(extract1);\n }\n\n function extract3(arcs) {\n arcs.forEach(extract2);\n }\n\n function geometry(o) {\n switch (geom = o, o.type) {\n case \"GeometryCollection\": o.geometries.forEach(geometry); break;\n case \"LineString\": extract1(o.arcs); break;\n case \"MultiLineString\": case \"Polygon\": extract2(o.arcs); break;\n case \"MultiPolygon\": extract3(o.arcs); break;\n }\n }\n\n geometry(object$$1);\n\n geomsByArc.forEach(filter == null\n ? function(geoms) { arcs.push(geoms[0].i); }\n : function(geoms) { if (filter(geoms[0].g, geoms[geoms.length - 1].g)) { arcs.push(geoms[0].i); } });\n\n return arcs;\n}\n\nfunction planarRingArea(ring) {\n var i = -1, n = ring.length, a, b = ring[n - 1], area = 0;\n while (++i < n) { a = b, b = ring[i], area += a[0] * b[1] - a[1] * b[0]; }\n return Math.abs(area); // Note: doubled area!\n}\n\nvar bisect = function(a, x) {\n var lo = 0, hi = a.length;\n while (lo < hi) {\n var mid = lo + hi >>> 1;\n if (a[mid] < x) { lo = mid + 1; }\n else { hi = mid; }\n }\n return lo;\n};\n\nvar slicers = {};\nvar options;\n\nonmessage = function (e) {\n if (e.data[0] === 'slice') {\n // Given a blob of GeoJSON and some topojson/geojson-vt options, do the slicing.\n var geojson = e.data[1];\n options = e.data[2];\n\n if (geojson.type && geojson.type === 'Topology') {\n for (var layerName in geojson.objects) {\n slicers[layerName] = index(\n feature(geojson, geojson.objects[layerName])\n , options);\n }\n } else {\n slicers[options.vectorTileLayerName] = index(geojson, options);\n }\n\n } else if (e.data[0] === 'get') {\n // Gets the vector tile for the given coordinates, sends it back as a message\n var coords = e.data[1];\n\n var tileLayers = {};\n for (var layerName in slicers) {\n var slicedTileLayer = slicers[layerName].getTile(coords.z, coords.x, coords.y);\n\n if (slicedTileLayer) {\n var vectorTileLayer = {\n features: [],\n extent: options.extent,\n name: options.vectorTileLayerName,\n length: slicedTileLayer.features.length\n };\n\n for (var i in slicedTileLayer.features) {\n var feat = {\n geometry: slicedTileLayer.features[i].geometry,\n properties: slicedTileLayer.features[i].tags,\n type: slicedTileLayer.features[i].type // 1 = point, 2 = line, 3 = polygon\n };\n vectorTileLayer.features.push(feat);\n }\n tileLayers[layerName] = vectorTileLayer;\n }\n }\n postMessage({ layers: tileLayers, coords: coords });\n }\n};\n//# sourceMap" + "pingURL=slicerWebWorker.js.worker.map\n", "text/plain; charset=us-ascii", false); - -// The geojson/topojson is sliced into tiles via a web worker. -// This import statement depends on rollup-file-as-blob, so that the -// variable 'workerCode' is a blob URL. - -/* - * 🍂class VectorGrid.Slicer - * 🍂extends VectorGrid - * - * A `VectorGrid` for slicing up big GeoJSON or TopoJSON documents in vector - * tiles, leveraging [`geojson-vt`](https://github.com/mapbox/geojson-vt). - * - * 🍂example - * - * ``` - * var geoJsonDocument = { - * type: 'FeatureCollection', - * features: [ ... ] - * }; - * - * L.vectorGrid.slicer(geoJsonDocument, { - * vectorTileLayerStyles: { - * sliced: { ... } - * } - * }).addTo(map); - * - * ``` - * - * `VectorGrid.Slicer` can also handle [TopoJSON](https://github.com/mbostock/topojson) transparently: - * ```js - * var layer = L.vectorGrid.slicer(topojson, options); - * ``` - * - * The TopoJSON format [implicitly groups features into "objects"](https://github.com/mbostock/topojson-specification/blob/master/README.md#215-objects). - * These will be transformed into vector tile layer names when styling (the - * `vectorTileLayerName` option is ignored when using TopoJSON). - * - */ - -L.VectorGrid.Slicer = L.VectorGrid.extend({ - - options: { - // 🍂section - // Additionally to these options, `VectorGrid.Slicer` can take in any - // of the [`geojson-vt` options](https://github.com/mapbox/geojson-vt#options). - - // 🍂option vectorTileLayerName: String = 'sliced' - // Vector tiles contain a set of *data layers*, and those data layers - // contain features. Thus, the slicer creates one data layer, with - // the name given in this option. This is important for symbolizing the data. - vectorTileLayerName: 'sliced', - - extent: 4096, // Default for geojson-vt - maxZoom: 14 // Default for geojson-vt - }, - - initialize: function(geojson, options) { - L.VectorGrid.prototype.initialize.call(this, options); - - // Create a shallow copy of this.options, excluding things that might - // be functions - we only care about topojson/geojsonvt options - var options = {}; - for (var i in this.options) { - if (i !== 'rendererFactory' && - i !== 'vectorTileLayerStyles' && - typeof (this.options[i]) !== 'function' - ) { - options[i] = this.options[i]; - } - } - -// this._worker = new Worker(window.URL.createObjectURL(new Blob([workerCode]))); - this._worker = new Worker(workerCode); - - // Send initial data to worker. - this._worker.postMessage(['slice', geojson, options]); - - }, - - - _getVectorTilePromise: function(coords) { - - var _this = this; - - var p = new Promise( function waitForWorker(res) { - _this._worker.addEventListener('message', function recv(m) { - if (m.data.coords && - m.data.coords.x === coords.x && - m.data.coords.y === coords.y && - m.data.coords.z === coords.z ) { - - res(m.data); - _this._worker.removeEventListener('message', recv); - } - }); - }); - - this._worker.postMessage(['get', coords]); - - return p; - }, - -}); - - -L.vectorGrid.slicer = function (geojson, options) { - return new L.VectorGrid.Slicer(geojson, options); -}; - -L.Canvas.Tile = L.Canvas.extend({ - - initialize: function (tileCoord, tileSize, options) { - L.Canvas.prototype.initialize.call(this, options); - this._tileCoord = tileCoord; - this._size = tileSize; - - this._initContainer(); - this._container.setAttribute('width', this._size.x); - this._container.setAttribute('height', this._size.y); - this._layers = {}; - this._drawnLayers = {}; - this._drawing = true; - - if (options.interactive) { - // By default, Leaflet tiles do not have pointer events - this._container.style.pointerEvents = 'auto'; - } - }, - - getCoord: function() { - return this._tileCoord; - }, - - getContainer: function() { - return this._container; - }, - - getOffset: function() { - return this._tileCoord.scaleBy(this._size).subtract(this._map.getPixelOrigin()); - }, - - onAdd: L.Util.falseFn, - - addTo: function(map) { - this._map = map; - }, - - removeFrom: function (map) { - delete this._map; - }, - - _onClick: function (e) { - var point = this._map.mouseEventToLayerPoint(e).subtract(this.getOffset()), layer, clickedLayer; - - for (var id in this._layers) { - layer = this._layers[id]; - if (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) { - clickedLayer = layer; - } - } - if (clickedLayer) { - L.DomEvent.fakeStop(e); - this._fireEvent([clickedLayer], e); - } - }, - - _onMouseMove: function (e) { - if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; } - - var point = this._map.mouseEventToLayerPoint(e).subtract(this.getOffset()); - this._handleMouseHover(e, point); - }, - - /// TODO: Modify _initPath to include an extra parameter, a group name - /// to order symbolizers by z-index - - _updateIcon: function (layer) { - if (!this._drawing) { return; } - - var icon = layer.options.icon, - options = icon.options, - size = L.point(options.iconSize), - anchor = options.iconAnchor || - size && size.divideBy(2, true), - p = layer._point.subtract(anchor), - ctx = this._ctx, - img = layer._getImage(); - - if (img.complete) { - ctx.drawImage(img, p.x, p.y, size.x, size.y); - } else { - L.DomEvent.on(img, 'load', function() { - ctx.drawImage(img, p.x, p.y, size.x, size.y); - }); - } - - this._drawnLayers[layer._leaflet_id] = layer; - } -}); - - -L.canvas.tile = function(tileCoord, tileSize, opts){ - return new L.Canvas.Tile(tileCoord, tileSize, opts); -}; - -// Aux file to bundle everything together, including the optional dependencies -// for protobuf tiles - -}()); -//# sourceMappingURL=Leaflet.VectorGrid.bundled.js.map diff --git a/assets/vendor/js/plugins-optimized.js b/assets/vendor/js/plugins-optimized.js index fd534ed..e8934ea 100644 --- a/assets/vendor/js/plugins-optimized.js +++ b/assets/vendor/js/plugins-optimized.js @@ -29,2539 +29,3 @@ L.HeatLayer=(L.Layer?L.Layer:L.Class).extend({initialize:function(t,i){this._lat * Copyright (c) 2024 Buu Nguyen */ (function(window,document){"use strict";function repaint(){canvas.width=window.innerWidth,canvas.height=5*options.barThickness;var ctx=canvas.getContext("2d");ctx.shadowBlur=options.shadowBlur,ctx.shadowColor=options.shadowColor;var stop,lineGradient=ctx.createLinearGradient(0,0,canvas.width,0);for(stop in options.barColors)lineGradient.addColorStop(stop,options.barColors[stop]);ctx.lineWidth=options.barThickness,ctx.beginPath(),ctx.moveTo(0,options.barThickness/2),ctx.lineTo(Math.ceil(currentProgress*canvas.width),options.barThickness/2),ctx.strokeStyle=lineGradient,ctx.stroke()}var canvas,currentProgress,showing,progressTimerId=null,fadeTimerId=null,delayTimerId=null,options={autoRun:!0,barThickness:3,barColors:{0:"rgba(26, 188, 156, .9)",".25":"rgba(52, 152, 219, .9)",".50":"rgba(241, 196, 15, .9)",".75":"rgba(230, 126, 34, .9)","1.0":"rgba(211, 84, 0, .9)"},shadowBlur:10,shadowColor:"rgba(0, 0, 0, .6)",className:null},topbar={config:function(opts){for(var key in opts)options.hasOwnProperty(key)&&(options[key]=opts[key])},show:function(handler){var type,elem;showing||(handler?delayTimerId=delayTimerId||setTimeout(()=>topbar.show(),handler):(showing=!0,null!==fadeTimerId&&window.cancelAnimationFrame(fadeTimerId),canvas||((elem=(canvas=document.createElement("canvas")).style).position="fixed",elem.top=elem.left=elem.right=elem.margin=elem.padding=0,elem.zIndex=100001,elem.display="none",options.className&&canvas.classList.add(options.className),type="resize",handler=repaint,(elem=window).addEventListener?elem.addEventListener(type,handler,!1):elem.attachEvent?elem.attachEvent("on"+type,handler):elem["on"+type]=handler),canvas.parentElement||document.body.appendChild(canvas),canvas.style.opacity=1,canvas.style.display="block",topbar.progress(0),options.autoRun&&function loop(){progressTimerId=window.requestAnimationFrame(loop),topbar.progress("+"+.05*Math.pow(1-Math.sqrt(currentProgress),2))}()))},progress:function(to){return void 0===to||("string"==typeof to&&(to=(0<=to.indexOf("+")||0<=to.indexOf("-")?currentProgress:0)+parseFloat(to)),currentProgress=1 -1 - }; - } - - function normalizeName(name) { - if (typeof name !== 'string') { - name = String(name); - } - if (/[^a-z0-9\-#$%&'*+.\^_`|~]/i.test(name)) { - throw new TypeError('Invalid character in header field name') - } - return name.toLowerCase() - } - - function normalizeValue(value) { - if (typeof value !== 'string') { - value = String(value); - } - return value - } - - // Build a destructive iterator for the value list - function iteratorFor(items) { - var iterator = { - next: function() { - var value = items.shift(); - return {done: value === undefined, value: value} - } - }; - - if (support.iterable) { - iterator[Symbol.iterator] = function() { - return iterator - }; - } - - return iterator - } - - function Headers(headers) { - this.map = {}; - - if (headers instanceof Headers) { - headers.forEach(function(value, name) { - this.append(name, value); - }, this); - } else if (Array.isArray(headers)) { - headers.forEach(function(header) { - this.append(header[0], header[1]); - }, this); - } else if (headers) { - Object.getOwnPropertyNames(headers).forEach(function(name) { - this.append(name, headers[name]); - }, this); - } - } - - Headers.prototype.append = function(name, value) { - name = normalizeName(name); - value = normalizeValue(value); - var oldValue = this.map[name]; - this.map[name] = oldValue ? oldValue+','+value : value; - }; - - Headers.prototype['delete'] = function(name) { - delete this.map[normalizeName(name)]; - }; - - Headers.prototype.get = function(name) { - name = normalizeName(name); - return this.has(name) ? this.map[name] : null - }; - - Headers.prototype.has = function(name) { - return this.map.hasOwnProperty(normalizeName(name)) - }; - - Headers.prototype.set = function(name, value) { - this.map[normalizeName(name)] = normalizeValue(value); - }; - - Headers.prototype.forEach = function(callback, thisArg) { - var this$1 = this; - - for (var name in this.map) { - if (this$1.map.hasOwnProperty(name)) { - callback.call(thisArg, this$1.map[name], name, this$1); - } - } - }; - - Headers.prototype.keys = function() { - var items = []; - this.forEach(function(value, name) { items.push(name); }); - return iteratorFor(items) - }; - - Headers.prototype.values = function() { - var items = []; - this.forEach(function(value) { items.push(value); }); - return iteratorFor(items) - }; - - Headers.prototype.entries = function() { - var items = []; - this.forEach(function(value, name) { items.push([name, value]); }); - return iteratorFor(items) - }; - - if (support.iterable) { - Headers.prototype[Symbol.iterator] = Headers.prototype.entries; - } - - function consumed(body) { - if (body.bodyUsed) { - return Promise.reject(new TypeError('Already read')) - } - body.bodyUsed = true; - } - - function fileReaderReady(reader) { - return new Promise(function(resolve, reject) { - reader.onload = function() { - resolve(reader.result); - }; - reader.onerror = function() { - reject(reader.error); - }; - }) - } - - function readBlobAsArrayBuffer(blob) { - var reader = new FileReader(); - var promise = fileReaderReady(reader); - reader.readAsArrayBuffer(blob); - return promise - } - - function readBlobAsText(blob) { - var reader = new FileReader(); - var promise = fileReaderReady(reader); - reader.readAsText(blob); - return promise - } - - function readArrayBufferAsText(buf) { - var view = new Uint8Array(buf); - var chars = new Array(view.length); - - for (var i = 0; i < view.length; i++) { - chars[i] = String.fromCharCode(view[i]); - } - return chars.join('') - } - - function bufferClone(buf) { - if (buf.slice) { - return buf.slice(0) - } else { - var view = new Uint8Array(buf.byteLength); - view.set(new Uint8Array(buf)); - return view.buffer - } - } - - function Body() { - this.bodyUsed = false; - - this._initBody = function(body) { - this._bodyInit = body; - if (!body) { - this._bodyText = ''; - } else if (typeof body === 'string') { - this._bodyText = body; - } else if (support.blob && Blob.prototype.isPrototypeOf(body)) { - this._bodyBlob = body; - } else if (support.formData && FormData.prototype.isPrototypeOf(body)) { - this._bodyFormData = body; - } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) { - this._bodyText = body.toString(); - } else if (support.arrayBuffer && support.blob && isDataView(body)) { - this._bodyArrayBuffer = bufferClone(body.buffer); - // IE 10-11 can't handle a DataView body. - this._bodyInit = new Blob([this._bodyArrayBuffer]); - } else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) { - this._bodyArrayBuffer = bufferClone(body); - } else { - throw new Error('unsupported BodyInit type') - } - - if (!this.headers.get('content-type')) { - if (typeof body === 'string') { - this.headers.set('content-type', 'text/plain;charset=UTF-8'); - } else if (this._bodyBlob && this._bodyBlob.type) { - this.headers.set('content-type', this._bodyBlob.type); - } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) { - this.headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8'); - } - } - }; - - if (support.blob) { - this.blob = function() { - var rejected = consumed(this); - if (rejected) { - return rejected - } - - if (this._bodyBlob) { - return Promise.resolve(this._bodyBlob) - } else if (this._bodyArrayBuffer) { - return Promise.resolve(new Blob([this._bodyArrayBuffer])) - } else if (this._bodyFormData) { - throw new Error('could not read FormData body as blob') - } else { - return Promise.resolve(new Blob([this._bodyText])) - } - }; - - this.arrayBuffer = function() { - if (this._bodyArrayBuffer) { - return consumed(this) || Promise.resolve(this._bodyArrayBuffer) - } else { - return this.blob().then(readBlobAsArrayBuffer) - } - }; - } - - this.text = function() { - var rejected = consumed(this); - if (rejected) { - return rejected - } - - if (this._bodyBlob) { - return readBlobAsText(this._bodyBlob) - } else if (this._bodyArrayBuffer) { - return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer)) - } else if (this._bodyFormData) { - throw new Error('could not read FormData body as text') - } else { - return Promise.resolve(this._bodyText) - } - }; - - if (support.formData) { - this.formData = function() { - return this.text().then(decode) - }; - } - - this.json = function() { - return this.text().then(JSON.parse) - }; - - return this - } - - // HTTP methods whose capitalization should be normalized - var methods = ['DELETE', 'GET', 'HEAD', 'OPTIONS', 'POST', 'PUT']; - - function normalizeMethod(method) { - var upcased = method.toUpperCase(); - return (methods.indexOf(upcased) > -1) ? upcased : method - } - - function Request(input, options) { - options = options || {}; - var body = options.body; - - if (input instanceof Request) { - if (input.bodyUsed) { - throw new TypeError('Already read') - } - this.url = input.url; - this.credentials = input.credentials; - if (!options.headers) { - this.headers = new Headers(input.headers); - } - this.method = input.method; - this.mode = input.mode; - if (!body && input._bodyInit != null) { - body = input._bodyInit; - input.bodyUsed = true; - } - } else { - this.url = String(input); - } - - this.credentials = options.credentials || this.credentials || 'omit'; - if (options.headers || !this.headers) { - this.headers = new Headers(options.headers); - } - this.method = normalizeMethod(options.method || this.method || 'GET'); - this.mode = options.mode || this.mode || null; - this.referrer = null; - - if ((this.method === 'GET' || this.method === 'HEAD') && body) { - throw new TypeError('Body not allowed for GET or HEAD requests') - } - this._initBody(body); - } - - Request.prototype.clone = function() { - return new Request(this, { body: this._bodyInit }) - }; - - function decode(body) { - var form = new FormData(); - body.trim().split('&').forEach(function(bytes) { - if (bytes) { - var split = bytes.split('='); - var name = split.shift().replace(/\+/g, ' '); - var value = split.join('=').replace(/\+/g, ' '); - form.append(decodeURIComponent(name), decodeURIComponent(value)); - } - }); - return form - } - - function parseHeaders(rawHeaders) { - var headers = new Headers(); - rawHeaders.split(/\r?\n/).forEach(function(line) { - var parts = line.split(':'); - var key = parts.shift().trim(); - if (key) { - var value = parts.join(':').trim(); - headers.append(key, value); - } - }); - return headers - } - - Body.call(Request.prototype); - - function Response(bodyInit, options) { - if (!options) { - options = {}; - } - - this.type = 'default'; - this.status = 'status' in options ? options.status : 200; - this.ok = this.status >= 200 && this.status < 300; - this.statusText = 'statusText' in options ? options.statusText : 'OK'; - this.headers = new Headers(options.headers); - this.url = options.url || ''; - this._initBody(bodyInit); - } - - Body.call(Response.prototype); - - Response.prototype.clone = function() { - return new Response(this._bodyInit, { - status: this.status, - statusText: this.statusText, - headers: new Headers(this.headers), - url: this.url - }) - }; - - Response.error = function() { - var response = new Response(null, {status: 0, statusText: ''}); - response.type = 'error'; - return response - }; - - var redirectStatuses = [301, 302, 303, 307, 308]; - - Response.redirect = function(url, status) { - if (redirectStatuses.indexOf(status) === -1) { - throw new RangeError('Invalid status code') - } - - return new Response(null, {status: status, headers: {location: url}}) - }; - - self.Headers = Headers; - self.Request = Request; - self.Response = Response; - - self.fetch = function(input, init) { - return new Promise(function(resolve, reject) { - var request = new Request(input, init); - var xhr = new XMLHttpRequest(); - - xhr.onload = function() { - var options = { - status: xhr.status, - statusText: xhr.statusText, - headers: parseHeaders(xhr.getAllResponseHeaders() || '') - }; - options.url = 'responseURL' in xhr ? xhr.responseURL : options.headers.get('X-Request-URL'); - var body = 'response' in xhr ? xhr.response : xhr.responseText; - resolve(new Response(body, options)); - }; - - xhr.onerror = function() { - reject(new TypeError('Network request failed')); - }; - - xhr.ontimeout = function() { - reject(new TypeError('Network request failed')); - }; - - xhr.open(request.method, request.url, true); - - if (request.credentials === 'include') { - xhr.withCredentials = true; - } - - if ('responseType' in xhr && support.blob) { - xhr.responseType = 'blob'; - } - - request.headers.forEach(function(value, name) { - xhr.setRequestHeader(name, value); - }); - - xhr.send(typeof request._bodyInit === 'undefined' ? null : request._bodyInit); - }) - }; - self.fetch.polyfill = true; -})(typeof self !== 'undefined' ? self : undefined); - -var read = function (buffer, offset, isLE, mLen, nBytes) { - var e, m; - var eLen = nBytes * 8 - mLen - 1; - var eMax = (1 << eLen) - 1; - var eBias = eMax >> 1; - var nBits = -7; - var i = isLE ? (nBytes - 1) : 0; - var d = isLE ? -1 : 1; - var s = buffer[offset + i]; - - i += d; - - e = s & ((1 << (-nBits)) - 1); - s >>= (-nBits); - nBits += eLen; - for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {} - - m = e & ((1 << (-nBits)) - 1); - e >>= (-nBits); - nBits += mLen; - for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {} - - if (e === 0) { - e = 1 - eBias; - } else if (e === eMax) { - return m ? NaN : ((s ? -1 : 1) * Infinity) - } else { - m = m + Math.pow(2, mLen); - e = e - eBias; - } - return (s ? -1 : 1) * m * Math.pow(2, e - mLen) -}; - -var write = function (buffer, value, offset, isLE, mLen, nBytes) { - var e, m, c; - var eLen = nBytes * 8 - mLen - 1; - var eMax = (1 << eLen) - 1; - var eBias = eMax >> 1; - var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0); - var i = isLE ? 0 : (nBytes - 1); - var d = isLE ? 1 : -1; - var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0; - - value = Math.abs(value); - - if (isNaN(value) || value === Infinity) { - m = isNaN(value) ? 1 : 0; - e = eMax; - } else { - e = Math.floor(Math.log(value) / Math.LN2); - if (value * (c = Math.pow(2, -e)) < 1) { - e--; - c *= 2; - } - if (e + eBias >= 1) { - value += rt / c; - } else { - value += rt * Math.pow(2, 1 - eBias); - } - if (value * c >= 2) { - e++; - c /= 2; - } - - if (e + eBias >= eMax) { - m = 0; - e = eMax; - } else if (e + eBias >= 1) { - m = (value * c - 1) * Math.pow(2, mLen); - e = e + eBias; - } else { - m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen); - e = 0; - } - } - - for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} - - e = (e << mLen) | m; - eLen += mLen; - for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} - - buffer[offset + i - d] |= s * 128; -}; - -var index$1 = { - read: read, - write: write -}; - -var index = Pbf; - -var ieee754 = index$1; - -function Pbf(buf) { - this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0); - this.pos = 0; - this.type = 0; - this.length = this.buf.length; -} - -Pbf.Varint = 0; // varint: int32, int64, uint32, uint64, sint32, sint64, bool, enum -Pbf.Fixed64 = 1; // 64-bit: double, fixed64, sfixed64 -Pbf.Bytes = 2; // length-delimited: string, bytes, embedded messages, packed repeated fields -Pbf.Fixed32 = 5; // 32-bit: float, fixed32, sfixed32 - -var SHIFT_LEFT_32 = (1 << 16) * (1 << 16); -var SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32; - -Pbf.prototype = { - - destroy: function() { - this.buf = null; - }, - - // === READING ================================================================= - - readFields: function(readField, result, end) { - var this$1 = this; - - end = end || this.length; - - while (this.pos < end) { - var val = this$1.readVarint(), - tag = val >> 3, - startPos = this$1.pos; - - this$1.type = val & 0x7; - readField(tag, result, this$1); - - if (this$1.pos === startPos) { this$1.skip(val); } - } - return result; - }, - - readMessage: function(readField, result) { - return this.readFields(readField, result, this.readVarint() + this.pos); - }, - - readFixed32: function() { - var val = readUInt32(this.buf, this.pos); - this.pos += 4; - return val; - }, - - readSFixed32: function() { - var val = readInt32(this.buf, this.pos); - this.pos += 4; - return val; - }, - - // 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed) - - readFixed64: function() { - var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32; - this.pos += 8; - return val; - }, - - readSFixed64: function() { - var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32; - this.pos += 8; - return val; - }, - - readFloat: function() { - var val = ieee754.read(this.buf, this.pos, true, 23, 4); - this.pos += 4; - return val; - }, - - readDouble: function() { - var val = ieee754.read(this.buf, this.pos, true, 52, 8); - this.pos += 8; - return val; - }, - - readVarint: function(isSigned) { - var buf = this.buf, - val, b; - - b = buf[this.pos++]; val = b & 0x7f; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 7; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 14; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 21; if (b < 0x80) { return val; } - b = buf[this.pos]; val |= (b & 0x0f) << 28; - - return readVarintRemainder(val, isSigned, this); - }, - - readVarint64: function() { // for compatibility with v2.0.1 - return this.readVarint(true); - }, - - readSVarint: function() { - var num = this.readVarint(); - return num % 2 === 1 ? (num + 1) / -2 : num / 2; // zigzag encoding - }, - - readBoolean: function() { - return Boolean(this.readVarint()); - }, - - readString: function() { - var end = this.readVarint() + this.pos, - str = readUtf8(this.buf, this.pos, end); - this.pos = end; - return str; - }, - - readBytes: function() { - var end = this.readVarint() + this.pos, - buffer = this.buf.subarray(this.pos, end); - this.pos = end; - return buffer; - }, - - // verbose for performance reasons; doesn't affect gzipped size - - readPackedVarint: function(arr, isSigned) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readVarint(isSigned)); } - return arr; - }, - readPackedSVarint: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSVarint()); } - return arr; - }, - readPackedBoolean: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readBoolean()); } - return arr; - }, - readPackedFloat: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFloat()); } - return arr; - }, - readPackedDouble: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readDouble()); } - return arr; - }, - readPackedFixed32: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFixed32()); } - return arr; - }, - readPackedSFixed32: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSFixed32()); } - return arr; - }, - readPackedFixed64: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFixed64()); } - return arr; - }, - readPackedSFixed64: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSFixed64()); } - return arr; - }, - - skip: function(val) { - var type = val & 0x7; - if (type === Pbf.Varint) { while (this.buf[this.pos++] > 0x7f) {} } - else if (type === Pbf.Bytes) { this.pos = this.readVarint() + this.pos; } - else if (type === Pbf.Fixed32) { this.pos += 4; } - else if (type === Pbf.Fixed64) { this.pos += 8; } - else { throw new Error('Unimplemented type: ' + type); } - }, - - // === WRITING ================================================================= - - writeTag: function(tag, type) { - this.writeVarint((tag << 3) | type); - }, - - realloc: function(min) { - var length = this.length || 16; - - while (length < this.pos + min) { length *= 2; } - - if (length !== this.length) { - var buf = new Uint8Array(length); - buf.set(this.buf); - this.buf = buf; - this.length = length; - } - }, - - finish: function() { - this.length = this.pos; - this.pos = 0; - return this.buf.subarray(0, this.length); - }, - - writeFixed32: function(val) { - this.realloc(4); - writeInt32(this.buf, val, this.pos); - this.pos += 4; - }, - - writeSFixed32: function(val) { - this.realloc(4); - writeInt32(this.buf, val, this.pos); - this.pos += 4; - }, - - writeFixed64: function(val) { - this.realloc(8); - writeInt32(this.buf, val & -1, this.pos); - writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4); - this.pos += 8; - }, - - writeSFixed64: function(val) { - this.realloc(8); - writeInt32(this.buf, val & -1, this.pos); - writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4); - this.pos += 8; - }, - - writeVarint: function(val) { - val = +val || 0; - - if (val > 0xfffffff || val < 0) { - writeBigVarint(val, this); - return; - } - - this.realloc(4); - - this.buf[this.pos++] = val & 0x7f | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = (val >>> 7) & 0x7f; - }, - - writeSVarint: function(val) { - this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2); - }, - - writeBoolean: function(val) { - this.writeVarint(Boolean(val)); - }, - - writeString: function(str) { - str = String(str); - this.realloc(str.length * 4); - - this.pos++; // reserve 1 byte for short string length - - var startPos = this.pos; - // write the string directly to the buffer and see how much was written - this.pos = writeUtf8(this.buf, str, this.pos); - var len = this.pos - startPos; - - if (len >= 0x80) { makeRoomForExtraLength(startPos, len, this); } - - // finally, write the message length in the reserved place and restore the position - this.pos = startPos - 1; - this.writeVarint(len); - this.pos += len; - }, - - writeFloat: function(val) { - this.realloc(4); - ieee754.write(this.buf, val, this.pos, true, 23, 4); - this.pos += 4; - }, - - writeDouble: function(val) { - this.realloc(8); - ieee754.write(this.buf, val, this.pos, true, 52, 8); - this.pos += 8; - }, - - writeBytes: function(buffer) { - var this$1 = this; - - var len = buffer.length; - this.writeVarint(len); - this.realloc(len); - for (var i = 0; i < len; i++) { this$1.buf[this$1.pos++] = buffer[i]; } - }, - - writeRawMessage: function(fn, obj) { - this.pos++; // reserve 1 byte for short message length - - // write the message directly to the buffer and see how much was written - var startPos = this.pos; - fn(obj, this); - var len = this.pos - startPos; - - if (len >= 0x80) { makeRoomForExtraLength(startPos, len, this); } - - // finally, write the message length in the reserved place and restore the position - this.pos = startPos - 1; - this.writeVarint(len); - this.pos += len; - }, - - writeMessage: function(tag, fn, obj) { - this.writeTag(tag, Pbf.Bytes); - this.writeRawMessage(fn, obj); - }, - - writePackedVarint: function(tag, arr) { this.writeMessage(tag, writePackedVarint, arr); }, - writePackedSVarint: function(tag, arr) { this.writeMessage(tag, writePackedSVarint, arr); }, - writePackedBoolean: function(tag, arr) { this.writeMessage(tag, writePackedBoolean, arr); }, - writePackedFloat: function(tag, arr) { this.writeMessage(tag, writePackedFloat, arr); }, - writePackedDouble: function(tag, arr) { this.writeMessage(tag, writePackedDouble, arr); }, - writePackedFixed32: function(tag, arr) { this.writeMessage(tag, writePackedFixed32, arr); }, - writePackedSFixed32: function(tag, arr) { this.writeMessage(tag, writePackedSFixed32, arr); }, - writePackedFixed64: function(tag, arr) { this.writeMessage(tag, writePackedFixed64, arr); }, - writePackedSFixed64: function(tag, arr) { this.writeMessage(tag, writePackedSFixed64, arr); }, - - writeBytesField: function(tag, buffer) { - this.writeTag(tag, Pbf.Bytes); - this.writeBytes(buffer); - }, - writeFixed32Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeFixed32(val); - }, - writeSFixed32Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeSFixed32(val); - }, - writeFixed64Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeFixed64(val); - }, - writeSFixed64Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeSFixed64(val); - }, - writeVarintField: function(tag, val) { - this.writeTag(tag, Pbf.Varint); - this.writeVarint(val); - }, - writeSVarintField: function(tag, val) { - this.writeTag(tag, Pbf.Varint); - this.writeSVarint(val); - }, - writeStringField: function(tag, str) { - this.writeTag(tag, Pbf.Bytes); - this.writeString(str); - }, - writeFloatField: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeFloat(val); - }, - writeDoubleField: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeDouble(val); - }, - writeBooleanField: function(tag, val) { - this.writeVarintField(tag, Boolean(val)); - } -}; - -function readVarintRemainder(l, s, p) { - var buf = p.buf, - h, b; - - b = buf[p.pos++]; h = (b & 0x70) >> 4; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 3; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 10; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 17; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 24; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x01) << 31; if (b < 0x80) { return toNum(l, h, s); } - - throw new Error('Expected varint not more than 10 bytes'); -} - -function readPackedEnd(pbf) { - return pbf.type === Pbf.Bytes ? - pbf.readVarint() + pbf.pos : pbf.pos + 1; -} - -function toNum(low, high, isSigned) { - if (isSigned) { - return high * 0x100000000 + (low >>> 0); - } - - return ((high >>> 0) * 0x100000000) + (low >>> 0); -} - -function writeBigVarint(val, pbf) { - var low, high; - - if (val >= 0) { - low = (val % 0x100000000) | 0; - high = (val / 0x100000000) | 0; - } else { - low = ~(-val % 0x100000000); - high = ~(-val / 0x100000000); - - if (low ^ 0xffffffff) { - low = (low + 1) | 0; - } else { - low = 0; - high = (high + 1) | 0; - } - } - - if (val >= 0x10000000000000000 || val < -0x10000000000000000) { - throw new Error('Given varint doesn\'t fit into 10 bytes'); - } - - pbf.realloc(10); - - writeBigVarintLow(low, high, pbf); - writeBigVarintHigh(high, pbf); -} - -function writeBigVarintLow(low, high, pbf) { - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos] = low & 0x7f; -} - -function writeBigVarintHigh(high, pbf) { - var lsb = (high & 0x07) << 4; - - pbf.buf[pbf.pos++] |= lsb | ((high >>>= 3) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f; -} - -function makeRoomForExtraLength(startPos, len, pbf) { - var extraLen = - len <= 0x3fff ? 1 : - len <= 0x1fffff ? 2 : - len <= 0xfffffff ? 3 : Math.ceil(Math.log(len) / (Math.LN2 * 7)); - - // if 1 byte isn't enough for encoding message length, shift the data to the right - pbf.realloc(extraLen); - for (var i = pbf.pos - 1; i >= startPos; i--) { pbf.buf[i + extraLen] = pbf.buf[i]; } -} - -function writePackedVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeVarint(arr[i]); } } -function writePackedSVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSVarint(arr[i]); } } -function writePackedFloat(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFloat(arr[i]); } } -function writePackedDouble(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeDouble(arr[i]); } } -function writePackedBoolean(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeBoolean(arr[i]); } } -function writePackedFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFixed32(arr[i]); } } -function writePackedSFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSFixed32(arr[i]); } } -function writePackedFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFixed64(arr[i]); } } -function writePackedSFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSFixed64(arr[i]); } } - -// Buffer code below from https://github.com/feross/buffer, MIT-licensed - -function readUInt32(buf, pos) { - return ((buf[pos]) | - (buf[pos + 1] << 8) | - (buf[pos + 2] << 16)) + - (buf[pos + 3] * 0x1000000); -} - -function writeInt32(buf, val, pos) { - buf[pos] = val; - buf[pos + 1] = (val >>> 8); - buf[pos + 2] = (val >>> 16); - buf[pos + 3] = (val >>> 24); -} - -function readInt32(buf, pos) { - return ((buf[pos]) | - (buf[pos + 1] << 8) | - (buf[pos + 2] << 16)) + - (buf[pos + 3] << 24); -} - -function readUtf8(buf, pos, end) { - var str = ''; - var i = pos; - - while (i < end) { - var b0 = buf[i]; - var c = null; // codepoint - var bytesPerSequence = - b0 > 0xEF ? 4 : - b0 > 0xDF ? 3 : - b0 > 0xBF ? 2 : 1; - - if (i + bytesPerSequence > end) { break; } - - var b1, b2, b3; - - if (bytesPerSequence === 1) { - if (b0 < 0x80) { - c = b0; - } - } else if (bytesPerSequence === 2) { - b1 = buf[i + 1]; - if ((b1 & 0xC0) === 0x80) { - c = (b0 & 0x1F) << 0x6 | (b1 & 0x3F); - if (c <= 0x7F) { - c = null; - } - } - } else if (bytesPerSequence === 3) { - b1 = buf[i + 1]; - b2 = buf[i + 2]; - if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80) { - c = (b0 & 0xF) << 0xC | (b1 & 0x3F) << 0x6 | (b2 & 0x3F); - if (c <= 0x7FF || (c >= 0xD800 && c <= 0xDFFF)) { - c = null; - } - } - } else if (bytesPerSequence === 4) { - b1 = buf[i + 1]; - b2 = buf[i + 2]; - b3 = buf[i + 3]; - if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) { - c = (b0 & 0xF) << 0x12 | (b1 & 0x3F) << 0xC | (b2 & 0x3F) << 0x6 | (b3 & 0x3F); - if (c <= 0xFFFF || c >= 0x110000) { - c = null; - } - } - } - - if (c === null) { - c = 0xFFFD; - bytesPerSequence = 1; - - } else if (c > 0xFFFF) { - c -= 0x10000; - str += String.fromCharCode(c >>> 10 & 0x3FF | 0xD800); - c = 0xDC00 | c & 0x3FF; - } - - str += String.fromCharCode(c); - i += bytesPerSequence; - } - - return str; -} - -function writeUtf8(buf, str, pos) { - for (var i = 0, c, lead; i < str.length; i++) { - c = str.charCodeAt(i); // code point - - if (c > 0xD7FF && c < 0xE000) { - if (lead) { - if (c < 0xDC00) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - lead = c; - continue; - } else { - c = lead - 0xD800 << 10 | c - 0xDC00 | 0x10000; - lead = null; - } - } else { - if (c > 0xDBFF || (i + 1 === str.length)) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - } else { - lead = c; - } - continue; - } - } else if (lead) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - lead = null; - } - - if (c < 0x80) { - buf[pos++] = c; - } else { - if (c < 0x800) { - buf[pos++] = c >> 0x6 | 0xC0; - } else { - if (c < 0x10000) { - buf[pos++] = c >> 0xC | 0xE0; - } else { - buf[pos++] = c >> 0x12 | 0xF0; - buf[pos++] = c >> 0xC & 0x3F | 0x80; - } - buf[pos++] = c >> 0x6 & 0x3F | 0x80; - } - buf[pos++] = c & 0x3F | 0x80; - } - } - return pos; -} - -var index$5 = Point$1; - -function Point$1(x, y) { - this.x = x; - this.y = y; -} - -Point$1.prototype = { - clone: function() { return new Point$1(this.x, this.y); }, - - add: function(p) { return this.clone()._add(p); }, - sub: function(p) { return this.clone()._sub(p); }, - mult: function(k) { return this.clone()._mult(k); }, - div: function(k) { return this.clone()._div(k); }, - rotate: function(a) { return this.clone()._rotate(a); }, - matMult: function(m) { return this.clone()._matMult(m); }, - unit: function() { return this.clone()._unit(); }, - perp: function() { return this.clone()._perp(); }, - round: function() { return this.clone()._round(); }, - - mag: function() { - return Math.sqrt(this.x * this.x + this.y * this.y); - }, - - equals: function(p) { - return this.x === p.x && - this.y === p.y; - }, - - dist: function(p) { - return Math.sqrt(this.distSqr(p)); - }, - - distSqr: function(p) { - var dx = p.x - this.x, - dy = p.y - this.y; - return dx * dx + dy * dy; - }, - - angle: function() { - return Math.atan2(this.y, this.x); - }, - - angleTo: function(b) { - return Math.atan2(this.y - b.y, this.x - b.x); - }, - - angleWith: function(b) { - return this.angleWithSep(b.x, b.y); - }, - - // Find the angle of the two vectors, solving the formula for the cross product a x b = |a||b|sin(θ) for θ. - angleWithSep: function(x, y) { - return Math.atan2( - this.x * y - this.y * x, - this.x * x + this.y * y); - }, - - _matMult: function(m) { - var x = m[0] * this.x + m[1] * this.y, - y = m[2] * this.x + m[3] * this.y; - this.x = x; - this.y = y; - return this; - }, - - _add: function(p) { - this.x += p.x; - this.y += p.y; - return this; - }, - - _sub: function(p) { - this.x -= p.x; - this.y -= p.y; - return this; - }, - - _mult: function(k) { - this.x *= k; - this.y *= k; - return this; - }, - - _div: function(k) { - this.x /= k; - this.y /= k; - return this; - }, - - _unit: function() { - this._div(this.mag()); - return this; - }, - - _perp: function() { - var y = this.y; - this.y = this.x; - this.x = -y; - return this; - }, - - _rotate: function(angle) { - var cos = Math.cos(angle), - sin = Math.sin(angle), - x = cos * this.x - sin * this.y, - y = sin * this.x + cos * this.y; - this.x = x; - this.y = y; - return this; - }, - - _round: function() { - this.x = Math.round(this.x); - this.y = Math.round(this.y); - return this; - } -}; - -// constructs Point from an array if necessary -Point$1.convert = function (a) { - if (a instanceof Point$1) { - return a; - } - if (Array.isArray(a)) { - return new Point$1(a[0], a[1]); - } - return a; -}; - -var Point = index$5; - -var vectortilefeature = VectorTileFeature$2; - -function VectorTileFeature$2(pbf, end, extent, keys, values) { - // Public - this.properties = {}; - this.extent = extent; - this.type = 0; - - // Private - this._pbf = pbf; - this._geometry = -1; - this._keys = keys; - this._values = values; - - pbf.readFields(readFeature, this, end); -} - -function readFeature(tag, feature, pbf) { - if (tag == 1) { feature.id = pbf.readVarint(); } - else if (tag == 2) { readTag(pbf, feature); } - else if (tag == 3) { feature.type = pbf.readVarint(); } - else if (tag == 4) { feature._geometry = pbf.pos; } -} - -function readTag(pbf, feature) { - var end = pbf.readVarint() + pbf.pos; - - while (pbf.pos < end) { - var key = feature._keys[pbf.readVarint()], - value = feature._values[pbf.readVarint()]; - feature.properties[key] = value; - } -} - -VectorTileFeature$2.types = ['Unknown', 'Point', 'LineString', 'Polygon']; - -VectorTileFeature$2.prototype.loadGeometry = function() { - var pbf = this._pbf; - pbf.pos = this._geometry; - - var end = pbf.readVarint() + pbf.pos, - cmd = 1, - length = 0, - x = 0, - y = 0, - lines = [], - line; - - while (pbf.pos < end) { - if (!length) { - var cmdLen = pbf.readVarint(); - cmd = cmdLen & 0x7; - length = cmdLen >> 3; - } - - length--; - - if (cmd === 1 || cmd === 2) { - x += pbf.readSVarint(); - y += pbf.readSVarint(); - - if (cmd === 1) { // moveTo - if (line) { lines.push(line); } - line = []; - } - - line.push(new Point(x, y)); - - } else if (cmd === 7) { - - // Workaround for https://github.com/mapbox/mapnik-vector-tile/issues/90 - if (line) { - line.push(line[0].clone()); // closePolygon - } - - } else { - throw new Error('unknown command ' + cmd); - } - } - - if (line) { lines.push(line); } - - return lines; -}; - -VectorTileFeature$2.prototype.bbox = function() { - var pbf = this._pbf; - pbf.pos = this._geometry; - - var end = pbf.readVarint() + pbf.pos, - cmd = 1, - length = 0, - x = 0, - y = 0, - x1 = Infinity, - x2 = -Infinity, - y1 = Infinity, - y2 = -Infinity; - - while (pbf.pos < end) { - if (!length) { - var cmdLen = pbf.readVarint(); - cmd = cmdLen & 0x7; - length = cmdLen >> 3; - } - - length--; - - if (cmd === 1 || cmd === 2) { - x += pbf.readSVarint(); - y += pbf.readSVarint(); - if (x < x1) { x1 = x; } - if (x > x2) { x2 = x; } - if (y < y1) { y1 = y; } - if (y > y2) { y2 = y; } - - } else if (cmd !== 7) { - throw new Error('unknown command ' + cmd); - } - } - - return [x1, y1, x2, y2]; -}; - -VectorTileFeature$2.prototype.toGeoJSON = function(x, y, z) { - var size = this.extent * Math.pow(2, z), - x0 = this.extent * x, - y0 = this.extent * y, - coords = this.loadGeometry(), - type = VectorTileFeature$2.types[this.type], - i, j; - - function project(line) { - for (var j = 0; j < line.length; j++) { - var p = line[j], y2 = 180 - (p.y + y0) * 360 / size; - line[j] = [ - (p.x + x0) * 360 / size - 180, - 360 / Math.PI * Math.atan(Math.exp(y2 * Math.PI / 180)) - 90 - ]; - } - } - - switch (this.type) { - case 1: - var points = []; - for (i = 0; i < coords.length; i++) { - points[i] = coords[i][0]; - } - coords = points; - project(coords); - break; - - case 2: - for (i = 0; i < coords.length; i++) { - project(coords[i]); - } - break; - - case 3: - coords = classifyRings(coords); - for (i = 0; i < coords.length; i++) { - for (j = 0; j < coords[i].length; j++) { - project(coords[i][j]); - } - } - break; - } - - if (coords.length === 1) { - coords = coords[0]; - } else { - type = 'Multi' + type; - } - - var result = { - type: "Feature", - geometry: { - type: type, - coordinates: coords - }, - properties: this.properties - }; - - if ('id' in this) { - result.id = this.id; - } - - return result; -}; - -// classifies an array of rings into polygons with outer rings and holes - -function classifyRings(rings) { - var len = rings.length; - - if (len <= 1) { return [rings]; } - - var polygons = [], - polygon, - ccw; - - for (var i = 0; i < len; i++) { - var area = signedArea(rings[i]); - if (area === 0) { continue; } - - if (ccw === undefined) { ccw = area < 0; } - - if (ccw === area < 0) { - if (polygon) { polygons.push(polygon); } - polygon = [rings[i]]; - - } else { - polygon.push(rings[i]); - } - } - if (polygon) { polygons.push(polygon); } - - return polygons; -} - -function signedArea(ring) { - var sum = 0; - for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) { - p1 = ring[i]; - p2 = ring[j]; - sum += (p2.x - p1.x) * (p1.y + p2.y); - } - return sum; -} - -var VectorTileFeature$1 = vectortilefeature; - -var vectortilelayer = VectorTileLayer$2; - -function VectorTileLayer$2(pbf, end) { - // Public - this.version = 1; - this.name = null; - this.extent = 4096; - this.length = 0; - - // Private - this._pbf = pbf; - this._keys = []; - this._values = []; - this._features = []; - - pbf.readFields(readLayer, this, end); - - this.length = this._features.length; -} - -function readLayer(tag, layer, pbf) { - if (tag === 15) { layer.version = pbf.readVarint(); } - else if (tag === 1) { layer.name = pbf.readString(); } - else if (tag === 5) { layer.extent = pbf.readVarint(); } - else if (tag === 2) { layer._features.push(pbf.pos); } - else if (tag === 3) { layer._keys.push(pbf.readString()); } - else if (tag === 4) { layer._values.push(readValueMessage(pbf)); } -} - -function readValueMessage(pbf) { - var value = null, - end = pbf.readVarint() + pbf.pos; - - while (pbf.pos < end) { - var tag = pbf.readVarint() >> 3; - - value = tag === 1 ? pbf.readString() : - tag === 2 ? pbf.readFloat() : - tag === 3 ? pbf.readDouble() : - tag === 4 ? pbf.readVarint64() : - tag === 5 ? pbf.readVarint() : - tag === 6 ? pbf.readSVarint() : - tag === 7 ? pbf.readBoolean() : null; - } - - return value; -} - -// return feature `i` from this layer as a `VectorTileFeature` -VectorTileLayer$2.prototype.feature = function(i) { - if (i < 0 || i >= this._features.length) { throw new Error('feature index out of bounds'); } - - this._pbf.pos = this._features[i]; - - var end = this._pbf.readVarint() + this._pbf.pos; - return new VectorTileFeature$1(this._pbf, end, this.extent, this._keys, this._values); -}; - -var VectorTileLayer$1 = vectortilelayer; - -var vectortile = VectorTile$1; - -function VectorTile$1(pbf, end) { - this.layers = pbf.readFields(readTile, {}, end); -} - -function readTile(tag, layers, pbf) { - if (tag === 3) { - var layer = new VectorTileLayer$1(pbf, pbf.readVarint() + pbf.pos); - if (layer.length) { layers[layer.name] = layer; } - } -} - -var VectorTile = vectortile; - -L.SVG.Tile = L.SVG.extend({ - - initialize: function (tileCoord, tileSize, options) { - L.SVG.prototype.initialize.call(this, options); - this._tileCoord = tileCoord; - this._size = tileSize; - - this._initContainer(); - this._container.setAttribute('width', this._size.x); - this._container.setAttribute('height', this._size.y); - this._container.setAttribute('viewBox', [0, 0, this._size.x, this._size.y].join(' ')); - - this._layers = {}; - }, - - getCoord: function() { - return this._tileCoord; - }, - - getContainer: function() { - return this._container; - }, - - onAdd: L.Util.falseFn, - - addTo: function(map) { - this._map = map; - if (this.options.interactive) { - for (var i in this._layers) { - var layer = this._layers[i]; - // By default, Leaflet tiles do not have pointer events. - layer._path.style.pointerEvents = 'auto'; - this._map._targets[L.stamp(layer._path)] = layer; - } - } - }, - - removeFrom: function (map) { - if (this.options.interactive) { - for (var i in this._layers) { - var layer = this._layers[i]; - delete this._map._targets[L.stamp(layer._path)]; - } - } - delete this._map; - }, - - _initContainer: function() { - L.SVG.prototype._initContainer.call(this); - var rect = L.SVG.create('rect'); - }, - - /// TODO: Modify _initPath to include an extra parameter, a group name - /// to order symbolizers by z-index - - _addPath: function (layer) { - this._rootGroup.appendChild(layer._path); - this._layers[L.stamp(layer)] = layer; - }, - - _updateIcon: function (layer) { - var path = layer._path = L.SVG.create('image'), - icon = layer.options.icon, - options = icon.options, - size = L.point(options.iconSize), - anchor = options.iconAnchor || - size && size.divideBy(2, true), - p = layer._point.subtract(anchor); - path.setAttribute('x', p.x); - path.setAttribute('y', p.y); - path.setAttribute('width', size.x + 'px'); - path.setAttribute('height', size.y + 'px'); - path.setAttribute('href', options.iconUrl); - } -}); - - -L.svg.tile = function(tileCoord, tileSize, opts){ - return new L.SVG.Tile(tileCoord, tileSize, opts); -}; - -// 🍂class Symbolizer -// 🍂inherits Class -// The abstract Symbolizer class is mostly equivalent in concept to a `L.Path` - it's an interface for -// polylines, polygons and circles. But instead of representing leaflet Layers, -// it represents things that have to be drawn inside a vector tile. - -// A vector tile *data layer* might have zero, one, or more *symbolizer definitions* -// A vector tile *feature* might have zero, one, or more *symbolizers*. -// The actual symbolizers applied will depend on filters and the symbolizer functions. - -var Symbolizer = L.Class.extend({ - // 🍂method initialize(feature: GeoJSON, pxPerExtent: Number) - // Initializes a new Line Symbolizer given a GeoJSON feature and the - // pixel-to-coordinate-units ratio. Internal use only. - - // 🍂method render(renderer, style) - // Renders this symbolizer in the given tiled renderer, with the given - // `L.Path` options. Internal use only. - render: function(renderer, style) { - this._renderer = renderer; - this.options = style; - renderer._initPath(this); - renderer._updateStyle(this); - }, - - // 🍂method render(renderer, style) - // Updates the `L.Path` options used to style this symbolizer, and re-renders it. - // Internal use only. - updateStyle: function(renderer, style) { - this.options = style; - renderer._updateStyle(this); - }, - - _getPixelBounds: function() { - var parts = this._parts; - var bounds = L.bounds([]); - for (var i = 0; i < parts.length; i++) { - var part = parts[i]; - for (var j = 0; j < part.length; j++) { - bounds.extend(part[j]); - } - } - - var w = this._clickTolerance(), - p = new L.Point(w, w); - - bounds.min._subtract(p); - bounds.max._add(p); - - return bounds; - }, - _clickTolerance: L.Path.prototype._clickTolerance, -}); - -// Contains mixins which are common to the Line Symbolizer and the Fill Symbolizer. - -var PolyBase = { - _makeFeatureParts: function(feat, pxPerExtent) { - var rings = feat.geometry; - var coord; - - this._parts = []; - for (var i = 0; i < rings.length; i++) { - var ring = rings[i]; - var part = []; - for (var j = 0; j < ring.length; j++) { - coord = ring[j]; - // Protobuf vector tiles return {x: , y:} - // Geojson-vt returns [,] - part.push(L.point(coord).scaleBy(pxPerExtent)); - } - this._parts.push(part); - } - }, - - makeInteractive: function() { - this._pxBounds = this._getPixelBounds(); - } -}; - -// 🍂class PointSymbolizer -// 🍂inherits CircleMarker -// A symbolizer for points. - -var PointSymbolizer = L.CircleMarker.extend({ - includes: Symbolizer.prototype, - - statics: { - iconCache: {} - }, - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - Symbolizer.prototype.render.call(this, renderer, style); - this._radius = style.radius || L.CircleMarker.prototype.options.radius; - this._updatePath(); - }, - - _makeFeatureParts: function(feat, pxPerExtent) { - var coord = feat.geometry[0]; - if (typeof coord[0] === 'object' && 'x' in coord[0]) { - // Protobuf vector tiles return [{x: , y:}] - this._point = L.point(coord[0]).scaleBy(pxPerExtent); - this._empty = L.Util.falseFn; - } else { - // Geojson-vt returns [,] - this._point = L.point(coord).scaleBy(pxPerExtent); - this._empty = L.Util.falseFn; - } - }, - - makeInteractive: function() { - this._updateBounds(); - }, - - updateStyle: function(renderer, style) { - this._radius = style.radius || this._radius; - this._updateBounds(); - return Symbolizer.prototype.updateStyle.call(this, renderer, style); - }, - - _updateBounds: function() { - var icon = this.options.icon; - if (icon) { - var size = L.point(icon.options.iconSize), - anchor = icon.options.iconAnchor || - size && size.divideBy(2, true), - p = this._point.subtract(anchor); - this._pxBounds = new L.Bounds(p, p.add(icon.options.iconSize)); - } else { - L.CircleMarker.prototype._updateBounds.call(this); - } - }, - - _updatePath: function() { - if (this.options.icon) { - this._renderer._updateIcon(this); - } else { - L.CircleMarker.prototype._updatePath.call(this); - } - }, - - _getImage: function () { - if (this.options.icon) { - var url = this.options.icon.options.iconUrl, - img = PointSymbolizer.iconCache[url]; - if (!img) { - var icon = this.options.icon; - img = PointSymbolizer.iconCache[url] = icon.createIcon(); - } - return img; - } else { - return null; - } - - }, - - _containsPoint: function(p) { - var icon = this.options.icon; - if (icon) { - return this._pxBounds.contains(p); - } else { - return L.CircleMarker.prototype._containsPoint.call(this, p); - } - } -}); - -// 🍂class LineSymbolizer -// 🍂inherits Polyline -// A symbolizer for lines. Can be applied to line and polygon features. - -var LineSymbolizer = L.Polyline.extend({ - includes: [Symbolizer.prototype, PolyBase], - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - style.fill = false; - Symbolizer.prototype.render.call(this, renderer, style); - this._updatePath(); - }, - - updateStyle: function(renderer, style) { - style.fill = false; - Symbolizer.prototype.updateStyle.call(this, renderer, style); - }, -}); - -// 🍂class FillSymbolizer -// 🍂inherits Polyline -// A symbolizer for filled areas. Applies only to polygon features. - -var FillSymbolizer = L.Polygon.extend({ - includes: [Symbolizer.prototype, PolyBase], - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - Symbolizer.prototype.render.call(this, renderer, style); - this._updatePath(); - } -}); - -/* 🍂class VectorGrid - * 🍂inherits GridLayer - * - * A `VectorGrid` is a generic, abstract class for displaying tiled vector data. - * it provides facilities for symbolizing and rendering the data in the vector - * tiles, but lacks the functionality to fetch the vector tiles from wherever - * they are. - * - * Extends Leaflet's `L.GridLayer`. - */ - -L.VectorGrid = L.GridLayer.extend({ - - options: { - // 🍂option rendererFactory = L.svg.tile - // A factory method which will be used to instantiate the per-tile renderers. - rendererFactory: L.svg.tile, - - // 🍂option vectorTileLayerStyles: Object = {} - // A data structure holding initial symbolizer definitions for the vector features. - vectorTileLayerStyles: {}, - - // 🍂option interactive: Boolean = false - // Whether this `VectorGrid` fires `Interactive Layer` events. - interactive: false, - - // 🍂option getFeatureId: Function = undefined - // A function that, given a vector feature, returns an unique identifier for it, e.g. - // `function(feat) { return feat.properties.uniqueIdField; }`. - // Must be defined for `setFeatureStyle` to work. - }, - - initialize: function(options) { - L.setOptions(this, options); - L.GridLayer.prototype.initialize.apply(this, arguments); - if (this.options.getFeatureId) { - this._vectorTiles = {}; - this._overriddenStyles = {}; - this.on('tileunload', function(e) { - var key = this._tileCoordsToKey(e.coords), - tile = this._vectorTiles[key]; - - if (tile && this._map) { - tile.removeFrom(this._map); - } - delete this._vectorTiles[key]; - }, this); - } - this._dataLayerNames = {}; - }, - - createTile: function(coords, done) { - var storeFeatures = this.options.getFeatureId; - - var tileSize = this.getTileSize(); - var renderer = this.options.rendererFactory(coords, tileSize, this.options); - - var vectorTilePromise = this._getVectorTilePromise(coords); - - if (storeFeatures) { - this._vectorTiles[this._tileCoordsToKey(coords)] = renderer; - renderer._features = {}; - } - - vectorTilePromise.then( function renderTile(vectorTile) { - for (var layerName in vectorTile.layers) { - this._dataLayerNames[layerName] = true; - var layer = vectorTile.layers[layerName]; - - var pxPerExtent = this.getTileSize().divideBy(layer.extent); - - var layerStyle = this.options.vectorTileLayerStyles[ layerName ] || - L.Path.prototype.options; - - for (var i = 0; i < layer.features.length; i++) { - var feat = layer.features[i]; - var id; - - var styleOptions = layerStyle; - if (storeFeatures) { - id = this.options.getFeatureId(feat); - var styleOverride = this._overriddenStyles[id]; - if (styleOverride) { - if (styleOverride[layerName]) { - styleOptions = styleOverride[layerName]; - } else { - styleOptions = styleOverride; - } - } - } - - if (styleOptions instanceof Function) { - styleOptions = styleOptions(feat.properties, coords.z); - } - - if (!(styleOptions instanceof Array)) { - styleOptions = [styleOptions]; - } - - if (!styleOptions.length) { - continue; - } - - var featureLayer = this._createLayer(feat, pxPerExtent); - - for (var j = 0; j < styleOptions.length; j++) { - var style = L.extend({}, L.Path.prototype.options, styleOptions[j]); - featureLayer.render(renderer, style); - renderer._addPath(featureLayer); - } - - if (this.options.interactive) { - featureLayer.makeInteractive(); - } - - if (storeFeatures) { - renderer._features[id] = { - layerName: layerName, - feature: featureLayer - }; - } - } - - } - if (this._map != null) { - renderer.addTo(this._map); - } - L.Util.requestAnimFrame(done.bind(coords, null, null)); - }.bind(this)); - - return renderer.getContainer(); - }, - - // 🍂method setFeatureStyle(id: Number, layerStyle: L.Path Options): this - // Given the unique ID for a vector features (as per the `getFeatureId` option), - // re-symbolizes that feature across all tiles it appears in. - setFeatureStyle: function(id, layerStyle) { - this._overriddenStyles[id] = layerStyle; - - for (var tileKey in this._vectorTiles) { - var tile = this._vectorTiles[tileKey]; - var features = tile._features; - var data = features[id]; - if (data) { - var feat = data.feature; - - var styleOptions = layerStyle; - if (layerStyle[data.layerName]) { - styleOptions = layerStyle[data.layerName]; - } - - this._updateStyles(feat, tile, styleOptions); - } - } - return this; - }, - - // 🍂method setFeatureStyle(id: Number): this - // Reverts the effects of a previous `setFeatureStyle` call. - resetFeatureStyle: function(id) { - delete this._overriddenStyles[id]; - - for (var tileKey in this._vectorTiles) { - var tile = this._vectorTiles[tileKey]; - var features = tile._features; - var data = features[id]; - if (data) { - var feat = data.feature; - var styleOptions = this.options.vectorTileLayerStyles[ data.layerName ] || - L.Path.prototype.options; - this._updateStyles(feat, tile, styleOptions); - } - } - return this; - }, - - // 🍂method getDataLayerNames(): Array - // Returns an array of strings, with all the known names of data layers in - // the vector tiles displayed. Useful for introspection. - getDataLayerNames: function() { - return Object.keys(this._dataLayerNames); - }, - - _updateStyles: function(feat, renderer, styleOptions) { - styleOptions = (styleOptions instanceof Function) ? - styleOptions(feat.properties, renderer.getCoord().z) : - styleOptions; - - if (!(styleOptions instanceof Array)) { - styleOptions = [styleOptions]; - } - - for (var j = 0; j < styleOptions.length; j++) { - var style = L.extend({}, L.Path.prototype.options, styleOptions[j]); - feat.updateStyle(renderer, style); - } - }, - - _createLayer: function(feat, pxPerExtent, layerStyle) { - var layer; - switch (feat.type) { - case 1: - layer = new PointSymbolizer(feat, pxPerExtent); - break; - case 2: - layer = new LineSymbolizer(feat, pxPerExtent); - break; - case 3: - layer = new FillSymbolizer(feat, pxPerExtent); - break; - } - - if (this.options.interactive) { - layer.addEventParent(this); - } - - return layer; - }, -}); - -/* - * 🍂section Extension methods - * - * Classes inheriting from `VectorGrid` **must** define the `_getVectorTilePromise` private method. - * - * 🍂method getVectorTilePromise(coords: Object): Promise - * Given a `coords` object in the form of `{x: Number, y: Number, z: Number}`, - * this function must return a `Promise` for a vector tile. - * - */ -L.vectorGrid = function (options) { - return new L.VectorGrid(options); -}; - -/* - * 🍂class VectorGrid.Protobuf - * 🍂extends VectorGrid - * - * A `VectorGrid` for vector tiles fetched from the internet. - * Tiles are supposed to be protobufs (AKA "protobuffer" or "Protocol Buffers"), - * containing data which complies with the - * [MapBox Vector Tile Specification](https://github.com/mapbox/vector-tile-spec/tree/master/2.1). - * - * This is the format used by: - * - Mapbox Vector Tiles - * - Mapzen Vector Tiles - * - ESRI Vector Tiles - * - [OpenMapTiles hosted Vector Tiles](https://openmaptiles.com/hosting/) - * - * 🍂example - * - * You must initialize a `VectorGrid.Protobuf` with a URL template, just like in - * `L.TileLayer`s. The difference is that the template must point to vector tiles - * (usually `.pbf` or `.mvt`) instead of raster (`.png` or `.jpg`) tiles, and that - * you should define the styling for all the features. - * - *

- * - * For OpenMapTiles, with a key from [https://openmaptiles.org/docs/host/use-cdn/](https://openmaptiles.org/docs/host/use-cdn/), - * initialization looks like this: - * - * ``` - * L.vectorGrid.protobuf("https://free-{s}.tilehosting.com/data/v3/{z}/{x}/{y}.pbf.pict?key={key}", { - * vectorTileLayerStyles: { ... }, - * subdomains: "0123", - * key: 'abcdefghi01234567890', - * maxNativeZoom: 14 - * }).addTo(map); - * ``` - * - * And for Mapbox vector tiles, it looks like this: - * - * ``` - * L.vectorGrid.protobuf("https://{s}.tiles.mapbox.com/v4/mapbox.mapbox-streets-v6/{z}/{x}/{y}.vector.pbf?access_token={token}", { - * vectorTileLayerStyles: { ... }, - * subdomains: "abcd", - * token: "pk.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRTS.TUVWXTZ0123456789abcde" - * }).addTo(map); - * ``` - */ -L.VectorGrid.Protobuf = L.VectorGrid.extend({ - - options: { - // 🍂section - // As with `L.TileLayer`, the URL template might contain a reference to - // any option (see the example above and note the `{key}` or `token` in the URL - // template, and the corresponding option). - // - // 🍂option subdomains: String = 'abc' - // Akin to the `subdomains` option for `L.TileLayer`. - subdomains: 'abc', // Like L.TileLayer - // - // 🍂option fetchOptions: Object = {} - // options passed to `fetch`, e.g. {credentials: 'same-origin'} to send cookie for the current domain - fetchOptions: {} - }, - - initialize: function(url, options) { - // Inherits options from geojson-vt! -// this._slicer = geojsonvt(geojson, options); - this._url = url; - L.VectorGrid.prototype.initialize.call(this, options); - }, - - // 🍂method setUrl(url: String, noRedraw?: Boolean): this - // Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`). - setUrl: function(url, noRedraw) { - this._url = url; - - if (!noRedraw) { - this.redraw(); - } - - return this; - }, - - _getSubdomain: L.TileLayer.prototype._getSubdomain, - - _getVectorTilePromise: function(coords) { - var data = { - s: this._getSubdomain(coords), - x: coords.x, - y: coords.y, - z: coords.z -// z: this._getZoomForUrl() /// TODO: Maybe replicate TileLayer's maxNativeZoom - }; - if (this._map && !this._map.options.crs.infinite) { - var invertedY = this._globalTileRange.max.y - coords.y; - if (this.options.tms) { // Should this option be available in Leaflet.VectorGrid? - data['y'] = invertedY; - } - data['-y'] = invertedY; - } - - var tileUrl = L.Util.template(this._url, L.extend(data, this.options)); - - return fetch(tileUrl, this.options.fetchOptions).then(function(response){ - - if (!response.ok) { - return {layers:[]}; - } - - return response.blob().then( function (blob) { -// console.log(blob); - - var reader = new FileReader(); - return new Promise(function(resolve){ - reader.addEventListener("loadend", function() { - // reader.result contains the contents of blob as a typed array - - // blob.type === 'application/x-protobuf' - var pbf = new index( reader.result ); -// console.log(pbf); - return resolve(new VectorTile( pbf )); - - }); - reader.readAsArrayBuffer(blob); - }); - }); - }).then(function(json){ - -// console.log('Vector tile:', json.layers); -// console.log('Vector tile water:', json.layers.water); // Instance of VectorTileLayer - - // Normalize feature getters into actual instanced features - for (var layerName in json.layers) { - var feats = []; - - for (var i=0; i maxSqDist) {\n index = i;\n maxSqDist = sqDist;\n }\n }\n\n if (maxSqDist > sqTolerance) {\n points[index][2] = maxSqDist; // save the point importance in squared pixels as a z coordinate\n stack.push(first);\n stack.push(index);\n first = index;\n\n } else {\n last = stack.pop();\n first = stack.pop();\n }\n }\n}\n\n// square distance from a point to a segment\nfunction getSqSegDist(p, a, b) {\n\n var x = a[0], y = a[1],\n bx = b[0], by = b[1],\n px = p[0], py = p[1],\n dx = bx - x,\n dy = by - y;\n\n if (dx !== 0 || dy !== 0) {\n\n var t = ((px - x) * dx + (py - y) * dy) / (dx * dx + dy * dy);\n\n if (t > 1) {\n x = bx;\n y = by;\n\n } else if (t > 0) {\n x += dx * t;\n y += dy * t;\n }\n }\n\n dx = px - x;\n dy = py - y;\n\n return dx * dx + dy * dy;\n}\n\nvar convert_1 = convert$1;\n\nvar simplify = simplify_1;\n\n// converts GeoJSON feature into an intermediate projected JSON vector format with simplification data\n\nfunction convert$1(data, tolerance) {\n var features = [];\n\n if (data.type === 'FeatureCollection') {\n for (var i = 0; i < data.features.length; i++) {\n convertFeature(features, data.features[i], tolerance);\n }\n } else if (data.type === 'Feature') {\n convertFeature(features, data, tolerance);\n\n } else {\n // single geometry or a geometry collection\n convertFeature(features, {geometry: data}, tolerance);\n }\n return features;\n}\n\nfunction convertFeature(features, feature, tolerance) {\n if (feature.geometry === null) {\n // ignore features with null geometry\n return;\n }\n\n var geom = feature.geometry,\n type = geom.type,\n coords = geom.coordinates,\n tags = feature.properties,\n i, j, rings, projectedRing;\n\n if (type === 'Point') {\n features.push(create(tags, 1, [projectPoint(coords)]));\n\n } else if (type === 'MultiPoint') {\n features.push(create(tags, 1, project(coords)));\n\n } else if (type === 'LineString') {\n features.push(create(tags, 2, [project(coords, tolerance)]));\n\n } else if (type === 'MultiLineString' || type === 'Polygon') {\n rings = [];\n for (i = 0; i < coords.length; i++) {\n projectedRing = project(coords[i], tolerance);\n if (type === 'Polygon') { projectedRing.outer = (i === 0); }\n rings.push(projectedRing);\n }\n features.push(create(tags, type === 'Polygon' ? 3 : 2, rings));\n\n } else if (type === 'MultiPolygon') {\n rings = [];\n for (i = 0; i < coords.length; i++) {\n for (j = 0; j < coords[i].length; j++) {\n projectedRing = project(coords[i][j], tolerance);\n projectedRing.outer = (j === 0);\n rings.push(projectedRing);\n }\n }\n features.push(create(tags, 3, rings));\n\n } else if (type === 'GeometryCollection') {\n for (i = 0; i < geom.geometries.length; i++) {\n convertFeature(features, {\n geometry: geom.geometries[i],\n properties: tags\n }, tolerance);\n }\n\n } else {\n throw new Error('Input data is not a valid GeoJSON object.');\n }\n}\n\nfunction create(tags, type, geometry) {\n var feature = {\n geometry: geometry,\n type: type,\n tags: tags || null,\n min: [2, 1], // initial bbox values;\n max: [-1, 0] // note that coords are usually in [0..1] range\n };\n calcBBox(feature);\n return feature;\n}\n\nfunction project(lonlats, tolerance) {\n var projected = [];\n for (var i = 0; i < lonlats.length; i++) {\n projected.push(projectPoint(lonlats[i]));\n }\n if (tolerance) {\n simplify(projected, tolerance);\n calcSize(projected);\n }\n return projected;\n}\n\nfunction projectPoint(p) {\n var sin = Math.sin(p[1] * Math.PI / 180),\n x = (p[0] / 360 + 0.5),\n y = (0.5 - 0.25 * Math.log((1 + sin) / (1 - sin)) / Math.PI);\n\n y = y < 0 ? 0 :\n y > 1 ? 1 : y;\n\n return [x, y, 0];\n}\n\n// calculate area and length of the poly\nfunction calcSize(points) {\n var area = 0,\n dist = 0;\n\n for (var i = 0, a, b; i < points.length - 1; i++) {\n a = b || points[i];\n b = points[i + 1];\n\n area += a[0] * b[1] - b[0] * a[1];\n\n // use Manhattan distance instead of Euclidian one to avoid expensive square root computation\n dist += Math.abs(b[0] - a[0]) + Math.abs(b[1] - a[1]);\n }\n points.area = Math.abs(area / 2);\n points.dist = dist;\n}\n\n// calculate the feature bounding box for faster clipping later\nfunction calcBBox(feature) {\n var geometry = feature.geometry,\n min = feature.min,\n max = feature.max;\n\n if (feature.type === 1) { calcRingBBox(min, max, geometry); }\n else { for (var i = 0; i < geometry.length; i++) { calcRingBBox(min, max, geometry[i]); } }\n\n return feature;\n}\n\nfunction calcRingBBox(min, max, points) {\n for (var i = 0, p; i < points.length; i++) {\n p = points[i];\n min[0] = Math.min(p[0], min[0]);\n max[0] = Math.max(p[0], max[0]);\n min[1] = Math.min(p[1], min[1]);\n max[1] = Math.max(p[1], max[1]);\n }\n}\n\nvar tile = transformTile;\nvar point = transformPoint;\n\n// Transforms the coordinates of each feature in the given tile from\n// mercator-projected space into (extent x extent) tile space.\nfunction transformTile(tile, extent) {\n if (tile.transformed) { return tile; }\n\n var z2 = tile.z2,\n tx = tile.x,\n ty = tile.y,\n i, j, k;\n\n for (i = 0; i < tile.features.length; i++) {\n var feature = tile.features[i],\n geom = feature.geometry,\n type = feature.type;\n\n if (type === 1) {\n for (j = 0; j < geom.length; j++) { geom[j] = transformPoint(geom[j], extent, z2, tx, ty); }\n\n } else {\n for (j = 0; j < geom.length; j++) {\n var ring = geom[j];\n for (k = 0; k < ring.length; k++) { ring[k] = transformPoint(ring[k], extent, z2, tx, ty); }\n }\n }\n }\n\n tile.transformed = true;\n\n return tile;\n}\n\nfunction transformPoint(p, extent, z2, tx, ty) {\n var x = Math.round(extent * (p[0] * z2 - tx)),\n y = Math.round(extent * (p[1] * z2 - ty));\n return [x, y];\n}\n\nvar transform$1 = {\n tile: tile,\n point: point\n};\n\nvar clip_1 = clip$1;\n\n/* clip features between two axis-parallel lines:\n * | |\n * ___|___ | /\n * / | \____|____/\n * | |\n */\n\nfunction clip$1(features, scale, k1, k2, axis, intersect, minAll, maxAll) {\n\n k1 /= scale;\n k2 /= scale;\n\n if (minAll >= k1 && maxAll <= k2) { return features; } // trivial accept\n else if (minAll > k2 || maxAll < k1) { return null; } // trivial reject\n\n var clipped = [];\n\n for (var i = 0; i < features.length; i++) {\n\n var feature = features[i],\n geometry = feature.geometry,\n type = feature.type,\n min, max;\n\n min = feature.min[axis];\n max = feature.max[axis];\n\n if (min >= k1 && max <= k2) { // trivial accept\n clipped.push(feature);\n continue;\n } else if (min > k2 || max < k1) { continue; } // trivial reject\n\n var slices = type === 1 ?\n clipPoints(geometry, k1, k2, axis) :\n clipGeometry(geometry, k1, k2, axis, intersect, type === 3);\n\n if (slices.length) {\n // if a feature got clipped, it will likely get clipped on the next zoom level as well,\n // so there's no need to recalculate bboxes\n clipped.push({\n geometry: slices,\n type: type,\n tags: features[i].tags || null,\n min: feature.min,\n max: feature.max\n });\n }\n }\n\n return clipped.length ? clipped : null;\n}\n\nfunction clipPoints(geometry, k1, k2, axis) {\n var slice = [];\n\n for (var i = 0; i < geometry.length; i++) {\n var a = geometry[i],\n ak = a[axis];\n\n if (ak >= k1 && ak <= k2) { slice.push(a); }\n }\n return slice;\n}\n\nfunction clipGeometry(geometry, k1, k2, axis, intersect, closed) {\n\n var slices = [];\n\n for (var i = 0; i < geometry.length; i++) {\n\n var ak = 0,\n bk = 0,\n b = null,\n points = geometry[i],\n area = points.area,\n dist = points.dist,\n outer = points.outer,\n len = points.length,\n a, j, last;\n\n var slice = [];\n\n for (j = 0; j < len - 1; j++) {\n a = b || points[j];\n b = points[j + 1];\n ak = bk || a[axis];\n bk = b[axis];\n\n if (ak < k1) {\n\n if ((bk > k2)) { // ---|-----|-->\n slice.push(intersect(a, b, k1), intersect(a, b, k2));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk >= k1) { slice.push(intersect(a, b, k1)); } // ---|--> |\n\n } else if (ak > k2) {\n\n if ((bk < k1)) { // <--|-----|---\n slice.push(intersect(a, b, k2), intersect(a, b, k1));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk <= k2) { slice.push(intersect(a, b, k2)); } // | <--|---\n\n } else {\n\n slice.push(a);\n\n if (bk < k1) { // <--|--- |\n slice.push(intersect(a, b, k1));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk > k2) { // | ---|-->\n slice.push(intersect(a, b, k2));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n }\n // | --> |\n }\n }\n\n // add the last point\n a = points[len - 1];\n ak = a[axis];\n if (ak >= k1 && ak <= k2) { slice.push(a); }\n\n // close the polygon if its endpoints are not the same after clipping\n\n last = slice[slice.length - 1];\n if (closed && last && (slice[0][0] !== last[0] || slice[0][1] !== last[1])) { slice.push(slice[0]); }\n\n // add the final slice\n newSlice(slices, slice, area, dist, outer);\n }\n\n return slices;\n}\n\nfunction newSlice(slices, slice, area, dist, outer) {\n if (slice.length) {\n // we don't recalculate the area/length of the unclipped geometry because the case where it goes\n // below the visibility threshold as a result of clipping is rare, so we avoid doing unnecessary work\n slice.area = area;\n slice.dist = dist;\n if (outer !== undefined) { slice.outer = outer; }\n\n slices.push(slice);\n }\n return [];\n}\n\nvar clip$2 = clip_1;\n\nvar wrap_1 = wrap$1;\n\nfunction wrap$1(features, buffer, intersectX) {\n var merged = features,\n left = clip$2(features, 1, -1 - buffer, buffer, 0, intersectX, -1, 2), // left world copy\n right = clip$2(features, 1, 1 - buffer, 2 + buffer, 0, intersectX, -1, 2); // right world copy\n\n if (left || right) {\n merged = clip$2(features, 1, -buffer, 1 + buffer, 0, intersectX, -1, 2); // center world copy\n\n if (left) { merged = shiftFeatureCoords(left, 1).concat(merged); } // merge left into center\n if (right) { merged = merged.concat(shiftFeatureCoords(right, -1)); } // merge right into center\n }\n\n return merged;\n}\n\nfunction shiftFeatureCoords(features, offset) {\n var newFeatures = [];\n\n for (var i = 0; i < features.length; i++) {\n var feature = features[i],\n type = feature.type;\n\n var newGeometry;\n\n if (type === 1) {\n newGeometry = shiftCoords(feature.geometry, offset);\n } else {\n newGeometry = [];\n for (var j = 0; j < feature.geometry.length; j++) {\n newGeometry.push(shiftCoords(feature.geometry[j], offset));\n }\n }\n\n newFeatures.push({\n geometry: newGeometry,\n type: type,\n tags: feature.tags,\n min: [feature.min[0] + offset, feature.min[1]],\n max: [feature.max[0] + offset, feature.max[1]]\n });\n }\n\n return newFeatures;\n}\n\nfunction shiftCoords(points, offset) {\n var newPoints = [];\n newPoints.area = points.area;\n newPoints.dist = points.dist;\n\n for (var i = 0; i < points.length; i++) {\n newPoints.push([points[i][0] + offset, points[i][1], points[i][2]]);\n }\n return newPoints;\n}\n\nvar tile$1 = createTile$1;\n\nfunction createTile$1(features, z2, tx, ty, tolerance, noSimplify) {\n var tile = {\n features: [],\n numPoints: 0,\n numSimplified: 0,\n numFeatures: 0,\n source: null,\n x: tx,\n y: ty,\n z2: z2,\n transformed: false,\n min: [2, 1],\n max: [-1, 0]\n };\n for (var i = 0; i < features.length; i++) {\n tile.numFeatures++;\n addFeature(tile, features[i], tolerance, noSimplify);\n\n var min = features[i].min,\n max = features[i].max;\n\n if (min[0] < tile.min[0]) { tile.min[0] = min[0]; }\n if (min[1] < tile.min[1]) { tile.min[1] = min[1]; }\n if (max[0] > tile.max[0]) { tile.max[0] = max[0]; }\n if (max[1] > tile.max[1]) { tile.max[1] = max[1]; }\n }\n return tile;\n}\n\nfunction addFeature(tile, feature, tolerance, noSimplify) {\n\n var geom = feature.geometry,\n type = feature.type,\n simplified = [],\n sqTolerance = tolerance * tolerance,\n i, j, ring, p;\n\n if (type === 1) {\n for (i = 0; i < geom.length; i++) {\n simplified.push(geom[i]);\n tile.numPoints++;\n tile.numSimplified++;\n }\n\n } else {\n\n // simplify and transform projected coordinates for tile geometry\n for (i = 0; i < geom.length; i++) {\n ring = geom[i];\n\n // filter out tiny polylines & polygons\n if (!noSimplify && ((type === 2 && ring.dist < tolerance) ||\n (type === 3 && ring.area < sqTolerance))) {\n tile.numPoints += ring.length;\n continue;\n }\n\n var simplifiedRing = [];\n\n for (j = 0; j < ring.length; j++) {\n p = ring[j];\n // keep points with importance > tolerance\n if (noSimplify || p[2] > sqTolerance) {\n simplifiedRing.push(p);\n tile.numSimplified++;\n }\n tile.numPoints++;\n }\n\n if (type === 3) { rewind(simplifiedRing, ring.outer); }\n\n simplified.push(simplifiedRing);\n }\n }\n\n if (simplified.length) {\n tile.features.push({\n geometry: simplified,\n type: type,\n tags: feature.tags || null\n });\n }\n}\n\nfunction rewind(ring, clockwise) {\n var area = signedArea(ring);\n if (area < 0 === clockwise) { ring.reverse(); }\n}\n\nfunction signedArea(ring) {\n var sum = 0;\n for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) {\n p1 = ring[i];\n p2 = ring[j];\n sum += (p2[0] - p1[0]) * (p1[1] + p2[1]);\n }\n return sum;\n}\n\nvar index = geojsonvt;\n\nvar convert = convert_1;\nvar transform = transform$1;\nvar clip = clip_1;\nvar wrap = wrap_1;\nvar createTile = tile$1; // final simplified tile generation\n\n\nfunction geojsonvt(data, options) {\n return new GeoJSONVT(data, options);\n}\n\nfunction GeoJSONVT(data, options) {\n options = this.options = extend(Object.create(this.options), options);\n\n var debug = options.debug;\n\n if (debug) { console.time('preprocess data'); }\n\n var z2 = 1 << options.maxZoom, // 2^z\n features = convert(data, options.tolerance / (z2 * options.extent));\n\n this.tiles = {};\n this.tileCoords = [];\n\n if (debug) {\n console.timeEnd('preprocess data');\n console.log('index: maxZoom: %d, maxPoints: %d', options.indexMaxZoom, options.indexMaxPoints);\n console.time('generate tiles');\n this.stats = {};\n this.total = 0;\n }\n\n features = wrap(features, options.buffer / options.extent, intersectX);\n\n // start slicing from the top tile down\n if (features.length) { this.splitTile(features, 0, 0, 0); }\n\n if (debug) {\n if (features.length) { console.log('features: %d, points: %d', this.tiles[0].numFeatures, this.tiles[0].numPoints); }\n console.timeEnd('generate tiles');\n console.log('tiles generated:', this.total, JSON.stringify(this.stats));\n }\n}\n\nGeoJSONVT.prototype.options = {\n maxZoom: 14, // max zoom to preserve detail on\n indexMaxZoom: 5, // max zoom in the tile index\n indexMaxPoints: 100000, // max number of points per tile in the tile index\n solidChildren: false, // whether to tile solid square tiles further\n tolerance: 3, // simplification tolerance (higher means simpler)\n extent: 4096, // tile extent\n buffer: 64, // tile buffer on each side\n debug: 0 // logging level (0, 1 or 2)\n};\n\nGeoJSONVT.prototype.splitTile = function (features, z, x, y, cz, cx, cy) {\n var this$1 = this;\n\n\n var stack = [features, z, x, y],\n options = this.options,\n debug = options.debug,\n solid = null;\n\n // avoid recursion by using a processing queue\n while (stack.length) {\n y = stack.pop();\n x = stack.pop();\n z = stack.pop();\n features = stack.pop();\n\n var z2 = 1 << z,\n id = toID(z, x, y),\n tile = this$1.tiles[id],\n tileTolerance = z === options.maxZoom ? 0 : options.tolerance / (z2 * options.extent);\n\n if (!tile) {\n if (debug > 1) { console.time('creation'); }\n\n tile = this$1.tiles[id] = createTile(features, z2, x, y, tileTolerance, z === options.maxZoom);\n this$1.tileCoords.push({z: z, x: x, y: y});\n\n if (debug) {\n if (debug > 1) {\n console.log('tile z%d-%d-%d (features: %d, points: %d, simplified: %d)',\n z, x, y, tile.numFeatures, tile.numPoints, tile.numSimplified);\n console.timeEnd('creation');\n }\n var key = 'z' + z;\n this$1.stats[key] = (this$1.stats[key] || 0) + 1;\n this$1.total++;\n }\n }\n\n // save reference to original geometry in tile so that we can drill down later if we stop now\n tile.source = features;\n\n // if it's the first-pass tiling\n if (!cz) {\n // stop tiling if we reached max zoom, or if the tile is too simple\n if (z === options.indexMaxZoom || tile.numPoints <= options.indexMaxPoints) { continue; }\n\n // if a drilldown to a specific tile\n } else {\n // stop tiling if we reached base zoom or our target tile zoom\n if (z === options.maxZoom || z === cz) { continue; }\n\n // stop tiling if it's not an ancestor of the target tile\n var m = 1 << (cz - z);\n if (x !== Math.floor(cx / m) || y !== Math.floor(cy / m)) { continue; }\n }\n\n // stop tiling if the tile is solid clipped square\n if (!options.solidChildren && isClippedSquare(tile, options.extent, options.buffer)) {\n if (cz) { solid = z; } // and remember the zoom if we're drilling down\n continue;\n }\n\n // if we slice further down, no need to keep source geometry\n tile.source = null;\n\n if (debug > 1) { console.time('clipping'); }\n\n // values we'll use for clipping\n var k1 = 0.5 * options.buffer / options.extent,\n k2 = 0.5 - k1,\n k3 = 0.5 + k1,\n k4 = 1 + k1,\n tl, bl, tr, br, left, right;\n\n tl = bl = tr = br = null;\n\n left = clip(features, z2, x - k1, x + k3, 0, intersectX, tile.min[0], tile.max[0]);\n right = clip(features, z2, x + k2, x + k4, 0, intersectX, tile.min[0], tile.max[0]);\n\n if (left) {\n tl = clip(left, z2, y - k1, y + k3, 1, intersectY, tile.min[1], tile.max[1]);\n bl = clip(left, z2, y + k2, y + k4, 1, intersectY, tile.min[1], tile.max[1]);\n }\n\n if (right) {\n tr = clip(right, z2, y - k1, y + k3, 1, intersectY, tile.min[1], tile.max[1]);\n br = clip(right, z2, y + k2, y + k4, 1, intersectY, tile.min[1], tile.max[1]);\n }\n\n if (debug > 1) { console.timeEnd('clipping'); }\n\n if (tl) { stack.push(tl, z + 1, x * 2, y * 2); }\n if (bl) { stack.push(bl, z + 1, x * 2, y * 2 + 1); }\n if (tr) { stack.push(tr, z + 1, x * 2 + 1, y * 2); }\n if (br) { stack.push(br, z + 1, x * 2 + 1, y * 2 + 1); }\n }\n\n return solid;\n};\n\nGeoJSONVT.prototype.getTile = function (z, x, y) {\n var this$1 = this;\n\n var options = this.options,\n extent = options.extent,\n debug = options.debug;\n\n var z2 = 1 << z;\n x = ((x % z2) + z2) % z2; // wrap tile x coordinate\n\n var id = toID(z, x, y);\n if (this.tiles[id]) { return transform.tile(this.tiles[id], extent); }\n\n if (debug > 1) { console.log('drilling down to z%d-%d-%d', z, x, y); }\n\n var z0 = z,\n x0 = x,\n y0 = y,\n parent;\n\n while (!parent && z0 > 0) {\n z0--;\n x0 = Math.floor(x0 / 2);\n y0 = Math.floor(y0 / 2);\n parent = this$1.tiles[toID(z0, x0, y0)];\n }\n\n if (!parent || !parent.source) { return null; }\n\n // if we found a parent tile containing the original geometry, we can drill down from it\n if (debug > 1) { console.log('found parent tile z%d-%d-%d', z0, x0, y0); }\n\n // it parent tile is a solid clipped square, return it instead since it's identical\n if (isClippedSquare(parent, extent, options.buffer)) { return transform.tile(parent, extent); }\n\n if (debug > 1) { console.time('drilling down'); }\n var solid = this.splitTile(parent.source, z0, x0, y0, z, x, y);\n if (debug > 1) { console.timeEnd('drilling down'); }\n\n // one of the parent tiles was a solid clipped square\n if (solid !== null) {\n var m = 1 << (z - solid);\n id = toID(solid, Math.floor(x / m), Math.floor(y / m));\n }\n\n return this.tiles[id] ? transform.tile(this.tiles[id], extent) : null;\n};\n\nfunction toID(z, x, y) {\n return (((1 << z) * y + x) * 32) + z;\n}\n\nfunction intersectX(a, b, x) {\n return [x, (x - a[0]) * (b[1] - a[1]) / (b[0] - a[0]) + a[1], 1];\n}\nfunction intersectY(a, b, y) {\n return [(y - a[1]) * (b[0] - a[0]) / (b[1] - a[1]) + a[0], y, 1];\n}\n\nfunction extend(dest, src) {\n for (var i in src) { dest[i] = src[i]; }\n return dest;\n}\n\n// checks whether a tile is a whole-area fill after clipping; if it is, there's no sense slicing it further\nfunction isClippedSquare(tile, extent, buffer) {\n\n var features = tile.source;\n if (features.length !== 1) { return false; }\n\n var feature = features[0];\n if (feature.type !== 3 || feature.geometry.length > 1) { return false; }\n\n var len = feature.geometry[0].length;\n if (len !== 5) { return false; }\n\n for (var i = 0; i < len; i++) {\n var p = transform.point(feature.geometry[0][i], extent, tile.z2, tile.x, tile.y);\n if ((p[0] !== -buffer && p[0] !== extent + buffer) ||\n (p[1] !== -buffer && p[1] !== extent + buffer)) { return false; }\n }\n\n return true;\n}\n\nvar identity = function(x) {\n return x;\n};\n\nvar transform$3 = function(topology) {\n if ((transform = topology.transform) == null) { return identity; }\n var transform,\n x0,\n y0,\n kx = transform.scale[0],\n ky = transform.scale[1],\n dx = transform.translate[0],\n dy = transform.translate[1];\n return function(point, i) {\n if (!i) { x0 = y0 = 0; }\n point[0] = (x0 += point[0]) * kx + dx;\n point[1] = (y0 += point[1]) * ky + dy;\n return point;\n };\n};\n\nvar bbox = function(topology) {\n var bbox = topology.bbox;\n\n function bboxPoint(p0) {\n p1[0] = p0[0], p1[1] = p0[1], t(p1);\n if (p1[0] < x0) { x0 = p1[0]; }\n if (p1[0] > x1) { x1 = p1[0]; }\n if (p1[1] < y0) { y0 = p1[1]; }\n if (p1[1] > y1) { y1 = p1[1]; }\n }\n\n function bboxGeometry(o) {\n switch (o.type) {\n case \"GeometryCollection\": o.geometries.forEach(bboxGeometry); break;\n case \"Point\": bboxPoint(o.coordinates); break;\n case \"MultiPoint\": o.coordinates.forEach(bboxPoint); break;\n }\n }\n\n if (!bbox) {\n var t = transform$3(topology), p0, p1 = new Array(2), name,\n x0 = Infinity, y0 = x0, x1 = -x0, y1 = -x0;\n\n topology.arcs.forEach(function(arc) {\n var i = -1, n = arc.length;\n while (++i < n) {\n p0 = arc[i], p1[0] = p0[0], p1[1] = p0[1], t(p1, i);\n if (p1[0] < x0) { x0 = p1[0]; }\n if (p1[0] > x1) { x1 = p1[0]; }\n if (p1[1] < y0) { y0 = p1[1]; }\n if (p1[1] > y1) { y1 = p1[1]; }\n }\n });\n\n for (name in topology.objects) {\n bboxGeometry(topology.objects[name]);\n }\n\n bbox = topology.bbox = [x0, y0, x1, y1];\n }\n\n return bbox;\n};\n\nvar reverse = function(array, n) {\n var t, j = array.length, i = j - n;\n while (i < --j) { t = array[i], array[i++] = array[j], array[j] = t; }\n};\n\nvar feature = function(topology, o) {\n return o.type === \"GeometryCollection\"\n ? {type: \"FeatureCollection\", features: o.geometries.map(function(o) { return feature$1(topology, o); })}\n : feature$1(topology, o);\n};\n\nfunction feature$1(topology, o) {\n var id = o.id,\n bbox = o.bbox,\n properties = o.properties == null ? {} : o.properties,\n geometry = object(topology, o);\n return id == null && bbox == null ? {type: \"Feature\", properties: properties, geometry: geometry}\n : bbox == null ? {type: \"Feature\", id: id, properties: properties, geometry: geometry}\n : {type: \"Feature\", id: id, bbox: bbox, properties: properties, geometry: geometry};\n}\n\nfunction object(topology, o) {\n var transformPoint = transform$3(topology),\n arcs = topology.arcs;\n\n function arc(i, points) {\n if (points.length) { points.pop(); }\n for (var a = arcs[i < 0 ? ~i : i], k = 0, n = a.length; k < n; ++k) {\n points.push(transformPoint(a[k].slice(), k));\n }\n if (i < 0) { reverse(points, n); }\n }\n\n function point(p) {\n return transformPoint(p.slice());\n }\n\n function line(arcs) {\n var points = [];\n for (var i = 0, n = arcs.length; i < n; ++i) { arc(arcs[i], points); }\n if (points.length < 2) { points.push(points[0].slice()); }\n return points;\n }\n\n function ring(arcs) {\n var points = line(arcs);\n while (points.length < 4) { points.push(points[0].slice()); }\n return points;\n }\n\n function polygon(arcs) {\n return arcs.map(ring);\n }\n\n function geometry(o) {\n var type = o.type, coordinates;\n switch (type) {\n case \"GeometryCollection\": return {type: type, geometries: o.geometries.map(geometry)};\n case \"Point\": coordinates = point(o.coordinates); break;\n case \"MultiPoint\": coordinates = o.coordinates.map(point); break;\n case \"LineString\": coordinates = line(o.arcs); break;\n case \"MultiLineString\": coordinates = o.arcs.map(line); break;\n case \"Polygon\": coordinates = polygon(o.arcs); break;\n case \"MultiPolygon\": coordinates = o.arcs.map(polygon); break;\n default: return null;\n }\n return {type: type, coordinates: coordinates};\n }\n\n return geometry(o);\n}\n\nvar stitch = function(topology, arcs) {\n var stitchedArcs = {},\n fragmentByStart = {},\n fragmentByEnd = {},\n fragments = [],\n emptyIndex = -1;\n\n // Stitch empty arcs first, since they may be subsumed by other arcs.\n arcs.forEach(function(i, j) {\n var arc = topology.arcs[i < 0 ? ~i : i], t;\n if (arc.length < 3 && !arc[1][0] && !arc[1][1]) {\n t = arcs[++emptyIndex], arcs[emptyIndex] = i, arcs[j] = t;\n }\n });\n\n arcs.forEach(function(i) {\n var e = ends(i),\n start = e[0],\n end = e[1],\n f, g;\n\n if (f = fragmentByEnd[start]) {\n delete fragmentByEnd[f.end];\n f.push(i);\n f.end = end;\n if (g = fragmentByStart[end]) {\n delete fragmentByStart[g.start];\n var fg = g === f ? f : f.concat(g);\n fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.end] = fg;\n } else {\n fragmentByStart[f.start] = fragmentByEnd[f.end] = f;\n }\n } else if (f = fragmentByStart[end]) {\n delete fragmentByStart[f.start];\n f.unshift(i);\n f.start = start;\n if (g = fragmentByEnd[start]) {\n delete fragmentByEnd[g.end];\n var gf = g === f ? f : g.concat(f);\n fragmentByStart[gf.start = g.start] = fragmentByEnd[gf.end = f.end] = gf;\n } else {\n fragmentByStart[f.start] = fragmentByEnd[f.end] = f;\n }\n } else {\n f = [i];\n fragmentByStart[f.start = start] = fragmentByEnd[f.end = end] = f;\n }\n });\n\n function ends(i) {\n var arc = topology.arcs[i < 0 ? ~i : i], p0 = arc[0], p1;\n if (topology.transform) { p1 = [0, 0], arc.forEach(function(dp) { p1[0] += dp[0], p1[1] += dp[1]; }); }\n else { p1 = arc[arc.length - 1]; }\n return i < 0 ? [p1, p0] : [p0, p1];\n }\n\n function flush(fragmentByEnd, fragmentByStart) {\n for (var k in fragmentByEnd) {\n var f = fragmentByEnd[k];\n delete fragmentByStart[f.start];\n delete f.start;\n delete f.end;\n f.forEach(function(i) { stitchedArcs[i < 0 ? ~i : i] = 1; });\n fragments.push(f);\n }\n }\n\n flush(fragmentByEnd, fragmentByStart);\n flush(fragmentByStart, fragmentByEnd);\n arcs.forEach(function(i) { if (!stitchedArcs[i < 0 ? ~i : i]) { fragments.push([i]); } });\n\n return fragments;\n};\n\nfunction extractArcs(topology, object$$1, filter) {\n var arcs = [],\n geomsByArc = [],\n geom;\n\n function extract0(i) {\n var j = i < 0 ? ~i : i;\n (geomsByArc[j] || (geomsByArc[j] = [])).push({i: i, g: geom});\n }\n\n function extract1(arcs) {\n arcs.forEach(extract0);\n }\n\n function extract2(arcs) {\n arcs.forEach(extract1);\n }\n\n function extract3(arcs) {\n arcs.forEach(extract2);\n }\n\n function geometry(o) {\n switch (geom = o, o.type) {\n case \"GeometryCollection\": o.geometries.forEach(geometry); break;\n case \"LineString\": extract1(o.arcs); break;\n case \"MultiLineString\": case \"Polygon\": extract2(o.arcs); break;\n case \"MultiPolygon\": extract3(o.arcs); break;\n }\n }\n\n geometry(object$$1);\n\n geomsByArc.forEach(filter == null\n ? function(geoms) { arcs.push(geoms[0].i); }\n : function(geoms) { if (filter(geoms[0].g, geoms[geoms.length - 1].g)) { arcs.push(geoms[0].i); } });\n\n return arcs;\n}\n\nfunction planarRingArea(ring) {\n var i = -1, n = ring.length, a, b = ring[n - 1], area = 0;\n while (++i < n) { a = b, b = ring[i], area += a[0] * b[1] - a[1] * b[0]; }\n return Math.abs(area); // Note: doubled area!\n}\n\nvar bisect = function(a, x) {\n var lo = 0, hi = a.length;\n while (lo < hi) {\n var mid = lo + hi >>> 1;\n if (a[mid] < x) { lo = mid + 1; }\n else { hi = mid; }\n }\n return lo;\n};\n\nvar slicers = {};\nvar options;\n\nonmessage = function (e) {\n if (e.data[0] === 'slice') {\n // Given a blob of GeoJSON and some topojson/geojson-vt options, do the slicing.\n var geojson = e.data[1];\n options = e.data[2];\n\n if (geojson.type && geojson.type === 'Topology') {\n for (var layerName in geojson.objects) {\n slicers[layerName] = index(\n feature(geojson, geojson.objects[layerName])\n , options);\n }\n } else {\n slicers[options.vectorTileLayerName] = index(geojson, options);\n }\n\n } else if (e.data[0] === 'get') {\n // Gets the vector tile for the given coordinates, sends it back as a message\n var coords = e.data[1];\n\n var tileLayers = {};\n for (var layerName in slicers) {\n var slicedTileLayer = slicers[layerName].getTile(coords.z, coords.x, coords.y);\n\n if (slicedTileLayer) {\n var vectorTileLayer = {\n features: [],\n extent: options.extent,\n name: options.vectorTileLayerName,\n length: slicedTileLayer.features.length\n };\n\n for (var i in slicedTileLayer.features) {\n var feat = {\n geometry: slicedTileLayer.features[i].geometry,\n properties: slicedTileLayer.features[i].tags,\n type: slicedTileLayer.features[i].type // 1 = point, 2 = line, 3 = polygon\n };\n vectorTileLayer.features.push(feat);\n }\n tileLayers[layerName] = vectorTileLayer;\n }\n }\n postMessage({ layers: tileLayers, coords: coords });\n }\n};\n//# sourceMap" + "pingURL=slicerWebWorker.js.worker.map\n", "text/plain; charset=us-ascii", false); - -// The geojson/topojson is sliced into tiles via a web worker. -// This import statement depends on rollup-file-as-blob, so that the -// variable 'workerCode' is a blob URL. - -/* - * 🍂class VectorGrid.Slicer - * 🍂extends VectorGrid - * - * A `VectorGrid` for slicing up big GeoJSON or TopoJSON documents in vector - * tiles, leveraging [`geojson-vt`](https://github.com/mapbox/geojson-vt). - * - * 🍂example - * - * ``` - * var geoJsonDocument = { - * type: 'FeatureCollection', - * features: [ ... ] - * }; - * - * L.vectorGrid.slicer(geoJsonDocument, { - * vectorTileLayerStyles: { - * sliced: { ... } - * } - * }).addTo(map); - * - * ``` - * - * `VectorGrid.Slicer` can also handle [TopoJSON](https://github.com/mbostock/topojson) transparently: - * ```js - * var layer = L.vectorGrid.slicer(topojson, options); - * ``` - * - * The TopoJSON format [implicitly groups features into "objects"](https://github.com/mbostock/topojson-specification/blob/master/README.md#215-objects). - * These will be transformed into vector tile layer names when styling (the - * `vectorTileLayerName` option is ignored when using TopoJSON). - * - */ - -L.VectorGrid.Slicer = L.VectorGrid.extend({ - - options: { - // 🍂section - // Additionally to these options, `VectorGrid.Slicer` can take in any - // of the [`geojson-vt` options](https://github.com/mapbox/geojson-vt#options). - - // 🍂option vectorTileLayerName: String = 'sliced' - // Vector tiles contain a set of *data layers*, and those data layers - // contain features. Thus, the slicer creates one data layer, with - // the name given in this option. This is important for symbolizing the data. - vectorTileLayerName: 'sliced', - - extent: 4096, // Default for geojson-vt - maxZoom: 14 // Default for geojson-vt - }, - - initialize: function(geojson, options) { - L.VectorGrid.prototype.initialize.call(this, options); - - // Create a shallow copy of this.options, excluding things that might - // be functions - we only care about topojson/geojsonvt options - var options = {}; - for (var i in this.options) { - if (i !== 'rendererFactory' && - i !== 'vectorTileLayerStyles' && - typeof (this.options[i]) !== 'function' - ) { - options[i] = this.options[i]; - } - } - -// this._worker = new Worker(window.URL.createObjectURL(new Blob([workerCode]))); - this._worker = new Worker(workerCode); - - // Send initial data to worker. - this._worker.postMessage(['slice', geojson, options]); - - }, - - - _getVectorTilePromise: function(coords) { - - var _this = this; - - var p = new Promise( function waitForWorker(res) { - _this._worker.addEventListener('message', function recv(m) { - if (m.data.coords && - m.data.coords.x === coords.x && - m.data.coords.y === coords.y && - m.data.coords.z === coords.z ) { - - res(m.data); - _this._worker.removeEventListener('message', recv); - } - }); - }); - - this._worker.postMessage(['get', coords]); - - return p; - }, - -}); - - -L.vectorGrid.slicer = function (geojson, options) { - return new L.VectorGrid.Slicer(geojson, options); -}; - -L.Canvas.Tile = L.Canvas.extend({ - - initialize: function (tileCoord, tileSize, options) { - L.Canvas.prototype.initialize.call(this, options); - this._tileCoord = tileCoord; - this._size = tileSize; - - this._initContainer(); - this._container.setAttribute('width', this._size.x); - this._container.setAttribute('height', this._size.y); - this._layers = {}; - this._drawnLayers = {}; - this._drawing = true; - - if (options.interactive) { - // By default, Leaflet tiles do not have pointer events - this._container.style.pointerEvents = 'auto'; - } - }, - - getCoord: function() { - return this._tileCoord; - }, - - getContainer: function() { - return this._container; - }, - - getOffset: function() { - return this._tileCoord.scaleBy(this._size).subtract(this._map.getPixelOrigin()); - }, - - onAdd: L.Util.falseFn, - - addTo: function(map) { - this._map = map; - }, - - removeFrom: function (map) { - delete this._map; - }, - - _onClick: function (e) { - var point = this._map.mouseEventToLayerPoint(e).subtract(this.getOffset()), layer, clickedLayer; - - for (var id in this._layers) { - layer = this._layers[id]; - if (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) { - clickedLayer = layer; - } - } - if (clickedLayer) { - L.DomEvent.fakeStop(e); - this._fireEvent([clickedLayer], e); - } - }, - - _onMouseMove: function (e) { - if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; } - - var point = this._map.mouseEventToLayerPoint(e).subtract(this.getOffset()); - this._handleMouseHover(e, point); - }, - - /// TODO: Modify _initPath to include an extra parameter, a group name - /// to order symbolizers by z-index - - _updateIcon: function (layer) { - if (!this._drawing) { return; } - - var icon = layer.options.icon, - options = icon.options, - size = L.point(options.iconSize), - anchor = options.iconAnchor || - size && size.divideBy(2, true), - p = layer._point.subtract(anchor), - ctx = this._ctx, - img = layer._getImage(); - - if (img.complete) { - ctx.drawImage(img, p.x, p.y, size.x, size.y); - } else { - L.DomEvent.on(img, 'load', function() { - ctx.drawImage(img, p.x, p.y, size.x, size.y); - }); - } - - this._drawnLayers[layer._leaflet_id] = layer; - } -}); - - -L.canvas.tile = function(tileCoord, tileSize, opts){ - return new L.Canvas.Tile(tileCoord, tileSize, opts); -}; - -// Aux file to bundle everything together, including the optional dependencies -// for protobuf tiles - -}()); -//# sourceMappingURL=Leaflet.VectorGrid.bundled.js.map - -return L.vectorGrid; -})(); diff --git a/assets/vendor/js/vendor-bundle.js b/assets/vendor/js/vendor-bundle.js index f513eef..ca4698a 100644 --- a/assets/vendor/js/vendor-bundle.js +++ b/assets/vendor/js/vendor-bundle.js @@ -71,2536 +71,3 @@ if (typeof window !== 'undefined' && window.Chart) { * Copyright (c) 2024 Buu Nguyen */ (function(window,document){"use strict";function repaint(){canvas.width=window.innerWidth,canvas.height=5*options.barThickness;var ctx=canvas.getContext("2d");ctx.shadowBlur=options.shadowBlur,ctx.shadowColor=options.shadowColor;var stop,lineGradient=ctx.createLinearGradient(0,0,canvas.width,0);for(stop in options.barColors)lineGradient.addColorStop(stop,options.barColors[stop]);ctx.lineWidth=options.barThickness,ctx.beginPath(),ctx.moveTo(0,options.barThickness/2),ctx.lineTo(Math.ceil(currentProgress*canvas.width),options.barThickness/2),ctx.strokeStyle=lineGradient,ctx.stroke()}var canvas,currentProgress,showing,progressTimerId=null,fadeTimerId=null,delayTimerId=null,options={autoRun:!0,barThickness:3,barColors:{0:"rgba(26, 188, 156, .9)",".25":"rgba(52, 152, 219, .9)",".50":"rgba(241, 196, 15, .9)",".75":"rgba(230, 126, 34, .9)","1.0":"rgba(211, 84, 0, .9)"},shadowBlur:10,shadowColor:"rgba(0, 0, 0, .6)",className:null},topbar={config:function(opts){for(var key in opts)options.hasOwnProperty(key)&&(options[key]=opts[key])},show:function(handler){var type,elem;showing||(handler?delayTimerId=delayTimerId||setTimeout(()=>topbar.show(),handler):(showing=!0,null!==fadeTimerId&&window.cancelAnimationFrame(fadeTimerId),canvas||((elem=(canvas=document.createElement("canvas")).style).position="fixed",elem.top=elem.left=elem.right=elem.margin=elem.padding=0,elem.zIndex=100001,elem.display="none",options.className&&canvas.classList.add(options.className),type="resize",handler=repaint,(elem=window).addEventListener?elem.addEventListener(type,handler,!1):elem.attachEvent?elem.attachEvent("on"+type,handler):elem["on"+type]=handler),canvas.parentElement||document.body.appendChild(canvas),canvas.style.opacity=1,canvas.style.display="block",topbar.progress(0),options.autoRun&&function loop(){progressTimerId=window.requestAnimationFrame(loop),topbar.progress("+"+.05*Math.pow(1-Math.sqrt(currentProgress),2))}()))},progress:function(to){return void 0===to||("string"==typeof to&&(to=(0<=to.indexOf("+")||0<=to.indexOf("-")?currentProgress:0)+parseFloat(to)),currentProgress=1 -1 - }; - } - - function normalizeName(name) { - if (typeof name !== 'string') { - name = String(name); - } - if (/[^a-z0-9\-#$%&'*+.\^_`|~]/i.test(name)) { - throw new TypeError('Invalid character in header field name') - } - return name.toLowerCase() - } - - function normalizeValue(value) { - if (typeof value !== 'string') { - value = String(value); - } - return value - } - - // Build a destructive iterator for the value list - function iteratorFor(items) { - var iterator = { - next: function() { - var value = items.shift(); - return {done: value === undefined, value: value} - } - }; - - if (support.iterable) { - iterator[Symbol.iterator] = function() { - return iterator - }; - } - - return iterator - } - - function Headers(headers) { - this.map = {}; - - if (headers instanceof Headers) { - headers.forEach(function(value, name) { - this.append(name, value); - }, this); - } else if (Array.isArray(headers)) { - headers.forEach(function(header) { - this.append(header[0], header[1]); - }, this); - } else if (headers) { - Object.getOwnPropertyNames(headers).forEach(function(name) { - this.append(name, headers[name]); - }, this); - } - } - - Headers.prototype.append = function(name, value) { - name = normalizeName(name); - value = normalizeValue(value); - var oldValue = this.map[name]; - this.map[name] = oldValue ? oldValue+','+value : value; - }; - - Headers.prototype['delete'] = function(name) { - delete this.map[normalizeName(name)]; - }; - - Headers.prototype.get = function(name) { - name = normalizeName(name); - return this.has(name) ? this.map[name] : null - }; - - Headers.prototype.has = function(name) { - return this.map.hasOwnProperty(normalizeName(name)) - }; - - Headers.prototype.set = function(name, value) { - this.map[normalizeName(name)] = normalizeValue(value); - }; - - Headers.prototype.forEach = function(callback, thisArg) { - var this$1 = this; - - for (var name in this.map) { - if (this$1.map.hasOwnProperty(name)) { - callback.call(thisArg, this$1.map[name], name, this$1); - } - } - }; - - Headers.prototype.keys = function() { - var items = []; - this.forEach(function(value, name) { items.push(name); }); - return iteratorFor(items) - }; - - Headers.prototype.values = function() { - var items = []; - this.forEach(function(value) { items.push(value); }); - return iteratorFor(items) - }; - - Headers.prototype.entries = function() { - var items = []; - this.forEach(function(value, name) { items.push([name, value]); }); - return iteratorFor(items) - }; - - if (support.iterable) { - Headers.prototype[Symbol.iterator] = Headers.prototype.entries; - } - - function consumed(body) { - if (body.bodyUsed) { - return Promise.reject(new TypeError('Already read')) - } - body.bodyUsed = true; - } - - function fileReaderReady(reader) { - return new Promise(function(resolve, reject) { - reader.onload = function() { - resolve(reader.result); - }; - reader.onerror = function() { - reject(reader.error); - }; - }) - } - - function readBlobAsArrayBuffer(blob) { - var reader = new FileReader(); - var promise = fileReaderReady(reader); - reader.readAsArrayBuffer(blob); - return promise - } - - function readBlobAsText(blob) { - var reader = new FileReader(); - var promise = fileReaderReady(reader); - reader.readAsText(blob); - return promise - } - - function readArrayBufferAsText(buf) { - var view = new Uint8Array(buf); - var chars = new Array(view.length); - - for (var i = 0; i < view.length; i++) { - chars[i] = String.fromCharCode(view[i]); - } - return chars.join('') - } - - function bufferClone(buf) { - if (buf.slice) { - return buf.slice(0) - } else { - var view = new Uint8Array(buf.byteLength); - view.set(new Uint8Array(buf)); - return view.buffer - } - } - - function Body() { - this.bodyUsed = false; - - this._initBody = function(body) { - this._bodyInit = body; - if (!body) { - this._bodyText = ''; - } else if (typeof body === 'string') { - this._bodyText = body; - } else if (support.blob && Blob.prototype.isPrototypeOf(body)) { - this._bodyBlob = body; - } else if (support.formData && FormData.prototype.isPrototypeOf(body)) { - this._bodyFormData = body; - } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) { - this._bodyText = body.toString(); - } else if (support.arrayBuffer && support.blob && isDataView(body)) { - this._bodyArrayBuffer = bufferClone(body.buffer); - // IE 10-11 can't handle a DataView body. - this._bodyInit = new Blob([this._bodyArrayBuffer]); - } else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) { - this._bodyArrayBuffer = bufferClone(body); - } else { - throw new Error('unsupported BodyInit type') - } - - if (!this.headers.get('content-type')) { - if (typeof body === 'string') { - this.headers.set('content-type', 'text/plain;charset=UTF-8'); - } else if (this._bodyBlob && this._bodyBlob.type) { - this.headers.set('content-type', this._bodyBlob.type); - } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) { - this.headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8'); - } - } - }; - - if (support.blob) { - this.blob = function() { - var rejected = consumed(this); - if (rejected) { - return rejected - } - - if (this._bodyBlob) { - return Promise.resolve(this._bodyBlob) - } else if (this._bodyArrayBuffer) { - return Promise.resolve(new Blob([this._bodyArrayBuffer])) - } else if (this._bodyFormData) { - throw new Error('could not read FormData body as blob') - } else { - return Promise.resolve(new Blob([this._bodyText])) - } - }; - - this.arrayBuffer = function() { - if (this._bodyArrayBuffer) { - return consumed(this) || Promise.resolve(this._bodyArrayBuffer) - } else { - return this.blob().then(readBlobAsArrayBuffer) - } - }; - } - - this.text = function() { - var rejected = consumed(this); - if (rejected) { - return rejected - } - - if (this._bodyBlob) { - return readBlobAsText(this._bodyBlob) - } else if (this._bodyArrayBuffer) { - return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer)) - } else if (this._bodyFormData) { - throw new Error('could not read FormData body as text') - } else { - return Promise.resolve(this._bodyText) - } - }; - - if (support.formData) { - this.formData = function() { - return this.text().then(decode) - }; - } - - this.json = function() { - return this.text().then(JSON.parse) - }; - - return this - } - - // HTTP methods whose capitalization should be normalized - var methods = ['DELETE', 'GET', 'HEAD', 'OPTIONS', 'POST', 'PUT']; - - function normalizeMethod(method) { - var upcased = method.toUpperCase(); - return (methods.indexOf(upcased) > -1) ? upcased : method - } - - function Request(input, options) { - options = options || {}; - var body = options.body; - - if (input instanceof Request) { - if (input.bodyUsed) { - throw new TypeError('Already read') - } - this.url = input.url; - this.credentials = input.credentials; - if (!options.headers) { - this.headers = new Headers(input.headers); - } - this.method = input.method; - this.mode = input.mode; - if (!body && input._bodyInit != null) { - body = input._bodyInit; - input.bodyUsed = true; - } - } else { - this.url = String(input); - } - - this.credentials = options.credentials || this.credentials || 'omit'; - if (options.headers || !this.headers) { - this.headers = new Headers(options.headers); - } - this.method = normalizeMethod(options.method || this.method || 'GET'); - this.mode = options.mode || this.mode || null; - this.referrer = null; - - if ((this.method === 'GET' || this.method === 'HEAD') && body) { - throw new TypeError('Body not allowed for GET or HEAD requests') - } - this._initBody(body); - } - - Request.prototype.clone = function() { - return new Request(this, { body: this._bodyInit }) - }; - - function decode(body) { - var form = new FormData(); - body.trim().split('&').forEach(function(bytes) { - if (bytes) { - var split = bytes.split('='); - var name = split.shift().replace(/\+/g, ' '); - var value = split.join('=').replace(/\+/g, ' '); - form.append(decodeURIComponent(name), decodeURIComponent(value)); - } - }); - return form - } - - function parseHeaders(rawHeaders) { - var headers = new Headers(); - rawHeaders.split(/\r?\n/).forEach(function(line) { - var parts = line.split(':'); - var key = parts.shift().trim(); - if (key) { - var value = parts.join(':').trim(); - headers.append(key, value); - } - }); - return headers - } - - Body.call(Request.prototype); - - function Response(bodyInit, options) { - if (!options) { - options = {}; - } - - this.type = 'default'; - this.status = 'status' in options ? options.status : 200; - this.ok = this.status >= 200 && this.status < 300; - this.statusText = 'statusText' in options ? options.statusText : 'OK'; - this.headers = new Headers(options.headers); - this.url = options.url || ''; - this._initBody(bodyInit); - } - - Body.call(Response.prototype); - - Response.prototype.clone = function() { - return new Response(this._bodyInit, { - status: this.status, - statusText: this.statusText, - headers: new Headers(this.headers), - url: this.url - }) - }; - - Response.error = function() { - var response = new Response(null, {status: 0, statusText: ''}); - response.type = 'error'; - return response - }; - - var redirectStatuses = [301, 302, 303, 307, 308]; - - Response.redirect = function(url, status) { - if (redirectStatuses.indexOf(status) === -1) { - throw new RangeError('Invalid status code') - } - - return new Response(null, {status: status, headers: {location: url}}) - }; - - self.Headers = Headers; - self.Request = Request; - self.Response = Response; - - self.fetch = function(input, init) { - return new Promise(function(resolve, reject) { - var request = new Request(input, init); - var xhr = new XMLHttpRequest(); - - xhr.onload = function() { - var options = { - status: xhr.status, - statusText: xhr.statusText, - headers: parseHeaders(xhr.getAllResponseHeaders() || '') - }; - options.url = 'responseURL' in xhr ? xhr.responseURL : options.headers.get('X-Request-URL'); - var body = 'response' in xhr ? xhr.response : xhr.responseText; - resolve(new Response(body, options)); - }; - - xhr.onerror = function() { - reject(new TypeError('Network request failed')); - }; - - xhr.ontimeout = function() { - reject(new TypeError('Network request failed')); - }; - - xhr.open(request.method, request.url, true); - - if (request.credentials === 'include') { - xhr.withCredentials = true; - } - - if ('responseType' in xhr && support.blob) { - xhr.responseType = 'blob'; - } - - request.headers.forEach(function(value, name) { - xhr.setRequestHeader(name, value); - }); - - xhr.send(typeof request._bodyInit === 'undefined' ? null : request._bodyInit); - }) - }; - self.fetch.polyfill = true; -})(typeof self !== 'undefined' ? self : undefined); - -var read = function (buffer, offset, isLE, mLen, nBytes) { - var e, m; - var eLen = nBytes * 8 - mLen - 1; - var eMax = (1 << eLen) - 1; - var eBias = eMax >> 1; - var nBits = -7; - var i = isLE ? (nBytes - 1) : 0; - var d = isLE ? -1 : 1; - var s = buffer[offset + i]; - - i += d; - - e = s & ((1 << (-nBits)) - 1); - s >>= (-nBits); - nBits += eLen; - for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {} - - m = e & ((1 << (-nBits)) - 1); - e >>= (-nBits); - nBits += mLen; - for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {} - - if (e === 0) { - e = 1 - eBias; - } else if (e === eMax) { - return m ? NaN : ((s ? -1 : 1) * Infinity) - } else { - m = m + Math.pow(2, mLen); - e = e - eBias; - } - return (s ? -1 : 1) * m * Math.pow(2, e - mLen) -}; - -var write = function (buffer, value, offset, isLE, mLen, nBytes) { - var e, m, c; - var eLen = nBytes * 8 - mLen - 1; - var eMax = (1 << eLen) - 1; - var eBias = eMax >> 1; - var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0); - var i = isLE ? 0 : (nBytes - 1); - var d = isLE ? 1 : -1; - var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0; - - value = Math.abs(value); - - if (isNaN(value) || value === Infinity) { - m = isNaN(value) ? 1 : 0; - e = eMax; - } else { - e = Math.floor(Math.log(value) / Math.LN2); - if (value * (c = Math.pow(2, -e)) < 1) { - e--; - c *= 2; - } - if (e + eBias >= 1) { - value += rt / c; - } else { - value += rt * Math.pow(2, 1 - eBias); - } - if (value * c >= 2) { - e++; - c /= 2; - } - - if (e + eBias >= eMax) { - m = 0; - e = eMax; - } else if (e + eBias >= 1) { - m = (value * c - 1) * Math.pow(2, mLen); - e = e + eBias; - } else { - m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen); - e = 0; - } - } - - for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} - - e = (e << mLen) | m; - eLen += mLen; - for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} - - buffer[offset + i - d] |= s * 128; -}; - -var index$1 = { - read: read, - write: write -}; - -var index = Pbf; - -var ieee754 = index$1; - -function Pbf(buf) { - this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0); - this.pos = 0; - this.type = 0; - this.length = this.buf.length; -} - -Pbf.Varint = 0; // varint: int32, int64, uint32, uint64, sint32, sint64, bool, enum -Pbf.Fixed64 = 1; // 64-bit: double, fixed64, sfixed64 -Pbf.Bytes = 2; // length-delimited: string, bytes, embedded messages, packed repeated fields -Pbf.Fixed32 = 5; // 32-bit: float, fixed32, sfixed32 - -var SHIFT_LEFT_32 = (1 << 16) * (1 << 16); -var SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32; - -Pbf.prototype = { - - destroy: function() { - this.buf = null; - }, - - // === READING ================================================================= - - readFields: function(readField, result, end) { - var this$1 = this; - - end = end || this.length; - - while (this.pos < end) { - var val = this$1.readVarint(), - tag = val >> 3, - startPos = this$1.pos; - - this$1.type = val & 0x7; - readField(tag, result, this$1); - - if (this$1.pos === startPos) { this$1.skip(val); } - } - return result; - }, - - readMessage: function(readField, result) { - return this.readFields(readField, result, this.readVarint() + this.pos); - }, - - readFixed32: function() { - var val = readUInt32(this.buf, this.pos); - this.pos += 4; - return val; - }, - - readSFixed32: function() { - var val = readInt32(this.buf, this.pos); - this.pos += 4; - return val; - }, - - // 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed) - - readFixed64: function() { - var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32; - this.pos += 8; - return val; - }, - - readSFixed64: function() { - var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32; - this.pos += 8; - return val; - }, - - readFloat: function() { - var val = ieee754.read(this.buf, this.pos, true, 23, 4); - this.pos += 4; - return val; - }, - - readDouble: function() { - var val = ieee754.read(this.buf, this.pos, true, 52, 8); - this.pos += 8; - return val; - }, - - readVarint: function(isSigned) { - var buf = this.buf, - val, b; - - b = buf[this.pos++]; val = b & 0x7f; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 7; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 14; if (b < 0x80) { return val; } - b = buf[this.pos++]; val |= (b & 0x7f) << 21; if (b < 0x80) { return val; } - b = buf[this.pos]; val |= (b & 0x0f) << 28; - - return readVarintRemainder(val, isSigned, this); - }, - - readVarint64: function() { // for compatibility with v2.0.1 - return this.readVarint(true); - }, - - readSVarint: function() { - var num = this.readVarint(); - return num % 2 === 1 ? (num + 1) / -2 : num / 2; // zigzag encoding - }, - - readBoolean: function() { - return Boolean(this.readVarint()); - }, - - readString: function() { - var end = this.readVarint() + this.pos, - str = readUtf8(this.buf, this.pos, end); - this.pos = end; - return str; - }, - - readBytes: function() { - var end = this.readVarint() + this.pos, - buffer = this.buf.subarray(this.pos, end); - this.pos = end; - return buffer; - }, - - // verbose for performance reasons; doesn't affect gzipped size - - readPackedVarint: function(arr, isSigned) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readVarint(isSigned)); } - return arr; - }, - readPackedSVarint: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSVarint()); } - return arr; - }, - readPackedBoolean: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readBoolean()); } - return arr; - }, - readPackedFloat: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFloat()); } - return arr; - }, - readPackedDouble: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readDouble()); } - return arr; - }, - readPackedFixed32: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFixed32()); } - return arr; - }, - readPackedSFixed32: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSFixed32()); } - return arr; - }, - readPackedFixed64: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readFixed64()); } - return arr; - }, - readPackedSFixed64: function(arr) { - var this$1 = this; - - var end = readPackedEnd(this); - arr = arr || []; - while (this.pos < end) { arr.push(this$1.readSFixed64()); } - return arr; - }, - - skip: function(val) { - var type = val & 0x7; - if (type === Pbf.Varint) { while (this.buf[this.pos++] > 0x7f) {} } - else if (type === Pbf.Bytes) { this.pos = this.readVarint() + this.pos; } - else if (type === Pbf.Fixed32) { this.pos += 4; } - else if (type === Pbf.Fixed64) { this.pos += 8; } - else { throw new Error('Unimplemented type: ' + type); } - }, - - // === WRITING ================================================================= - - writeTag: function(tag, type) { - this.writeVarint((tag << 3) | type); - }, - - realloc: function(min) { - var length = this.length || 16; - - while (length < this.pos + min) { length *= 2; } - - if (length !== this.length) { - var buf = new Uint8Array(length); - buf.set(this.buf); - this.buf = buf; - this.length = length; - } - }, - - finish: function() { - this.length = this.pos; - this.pos = 0; - return this.buf.subarray(0, this.length); - }, - - writeFixed32: function(val) { - this.realloc(4); - writeInt32(this.buf, val, this.pos); - this.pos += 4; - }, - - writeSFixed32: function(val) { - this.realloc(4); - writeInt32(this.buf, val, this.pos); - this.pos += 4; - }, - - writeFixed64: function(val) { - this.realloc(8); - writeInt32(this.buf, val & -1, this.pos); - writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4); - this.pos += 8; - }, - - writeSFixed64: function(val) { - this.realloc(8); - writeInt32(this.buf, val & -1, this.pos); - writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4); - this.pos += 8; - }, - - writeVarint: function(val) { - val = +val || 0; - - if (val > 0xfffffff || val < 0) { - writeBigVarint(val, this); - return; - } - - this.realloc(4); - - this.buf[this.pos++] = val & 0x7f | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) { return; } - this.buf[this.pos++] = (val >>> 7) & 0x7f; - }, - - writeSVarint: function(val) { - this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2); - }, - - writeBoolean: function(val) { - this.writeVarint(Boolean(val)); - }, - - writeString: function(str) { - str = String(str); - this.realloc(str.length * 4); - - this.pos++; // reserve 1 byte for short string length - - var startPos = this.pos; - // write the string directly to the buffer and see how much was written - this.pos = writeUtf8(this.buf, str, this.pos); - var len = this.pos - startPos; - - if (len >= 0x80) { makeRoomForExtraLength(startPos, len, this); } - - // finally, write the message length in the reserved place and restore the position - this.pos = startPos - 1; - this.writeVarint(len); - this.pos += len; - }, - - writeFloat: function(val) { - this.realloc(4); - ieee754.write(this.buf, val, this.pos, true, 23, 4); - this.pos += 4; - }, - - writeDouble: function(val) { - this.realloc(8); - ieee754.write(this.buf, val, this.pos, true, 52, 8); - this.pos += 8; - }, - - writeBytes: function(buffer) { - var this$1 = this; - - var len = buffer.length; - this.writeVarint(len); - this.realloc(len); - for (var i = 0; i < len; i++) { this$1.buf[this$1.pos++] = buffer[i]; } - }, - - writeRawMessage: function(fn, obj) { - this.pos++; // reserve 1 byte for short message length - - // write the message directly to the buffer and see how much was written - var startPos = this.pos; - fn(obj, this); - var len = this.pos - startPos; - - if (len >= 0x80) { makeRoomForExtraLength(startPos, len, this); } - - // finally, write the message length in the reserved place and restore the position - this.pos = startPos - 1; - this.writeVarint(len); - this.pos += len; - }, - - writeMessage: function(tag, fn, obj) { - this.writeTag(tag, Pbf.Bytes); - this.writeRawMessage(fn, obj); - }, - - writePackedVarint: function(tag, arr) { this.writeMessage(tag, writePackedVarint, arr); }, - writePackedSVarint: function(tag, arr) { this.writeMessage(tag, writePackedSVarint, arr); }, - writePackedBoolean: function(tag, arr) { this.writeMessage(tag, writePackedBoolean, arr); }, - writePackedFloat: function(tag, arr) { this.writeMessage(tag, writePackedFloat, arr); }, - writePackedDouble: function(tag, arr) { this.writeMessage(tag, writePackedDouble, arr); }, - writePackedFixed32: function(tag, arr) { this.writeMessage(tag, writePackedFixed32, arr); }, - writePackedSFixed32: function(tag, arr) { this.writeMessage(tag, writePackedSFixed32, arr); }, - writePackedFixed64: function(tag, arr) { this.writeMessage(tag, writePackedFixed64, arr); }, - writePackedSFixed64: function(tag, arr) { this.writeMessage(tag, writePackedSFixed64, arr); }, - - writeBytesField: function(tag, buffer) { - this.writeTag(tag, Pbf.Bytes); - this.writeBytes(buffer); - }, - writeFixed32Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeFixed32(val); - }, - writeSFixed32Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeSFixed32(val); - }, - writeFixed64Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeFixed64(val); - }, - writeSFixed64Field: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeSFixed64(val); - }, - writeVarintField: function(tag, val) { - this.writeTag(tag, Pbf.Varint); - this.writeVarint(val); - }, - writeSVarintField: function(tag, val) { - this.writeTag(tag, Pbf.Varint); - this.writeSVarint(val); - }, - writeStringField: function(tag, str) { - this.writeTag(tag, Pbf.Bytes); - this.writeString(str); - }, - writeFloatField: function(tag, val) { - this.writeTag(tag, Pbf.Fixed32); - this.writeFloat(val); - }, - writeDoubleField: function(tag, val) { - this.writeTag(tag, Pbf.Fixed64); - this.writeDouble(val); - }, - writeBooleanField: function(tag, val) { - this.writeVarintField(tag, Boolean(val)); - } -}; - -function readVarintRemainder(l, s, p) { - var buf = p.buf, - h, b; - - b = buf[p.pos++]; h = (b & 0x70) >> 4; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 3; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 10; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 17; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x7f) << 24; if (b < 0x80) { return toNum(l, h, s); } - b = buf[p.pos++]; h |= (b & 0x01) << 31; if (b < 0x80) { return toNum(l, h, s); } - - throw new Error('Expected varint not more than 10 bytes'); -} - -function readPackedEnd(pbf) { - return pbf.type === Pbf.Bytes ? - pbf.readVarint() + pbf.pos : pbf.pos + 1; -} - -function toNum(low, high, isSigned) { - if (isSigned) { - return high * 0x100000000 + (low >>> 0); - } - - return ((high >>> 0) * 0x100000000) + (low >>> 0); -} - -function writeBigVarint(val, pbf) { - var low, high; - - if (val >= 0) { - low = (val % 0x100000000) | 0; - high = (val / 0x100000000) | 0; - } else { - low = ~(-val % 0x100000000); - high = ~(-val / 0x100000000); - - if (low ^ 0xffffffff) { - low = (low + 1) | 0; - } else { - low = 0; - high = (high + 1) | 0; - } - } - - if (val >= 0x10000000000000000 || val < -0x10000000000000000) { - throw new Error('Given varint doesn\'t fit into 10 bytes'); - } - - pbf.realloc(10); - - writeBigVarintLow(low, high, pbf); - writeBigVarintHigh(high, pbf); -} - -function writeBigVarintLow(low, high, pbf) { - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7; - pbf.buf[pbf.pos] = low & 0x7f; -} - -function writeBigVarintHigh(high, pbf) { - var lsb = (high & 0x07) << 4; - - pbf.buf[pbf.pos++] |= lsb | ((high >>>= 3) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) { return; } - pbf.buf[pbf.pos++] = high & 0x7f; -} - -function makeRoomForExtraLength(startPos, len, pbf) { - var extraLen = - len <= 0x3fff ? 1 : - len <= 0x1fffff ? 2 : - len <= 0xfffffff ? 3 : Math.ceil(Math.log(len) / (Math.LN2 * 7)); - - // if 1 byte isn't enough for encoding message length, shift the data to the right - pbf.realloc(extraLen); - for (var i = pbf.pos - 1; i >= startPos; i--) { pbf.buf[i + extraLen] = pbf.buf[i]; } -} - -function writePackedVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeVarint(arr[i]); } } -function writePackedSVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSVarint(arr[i]); } } -function writePackedFloat(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFloat(arr[i]); } } -function writePackedDouble(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeDouble(arr[i]); } } -function writePackedBoolean(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeBoolean(arr[i]); } } -function writePackedFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFixed32(arr[i]); } } -function writePackedSFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSFixed32(arr[i]); } } -function writePackedFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeFixed64(arr[i]); } } -function writePackedSFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) { pbf.writeSFixed64(arr[i]); } } - -// Buffer code below from https://github.com/feross/buffer, MIT-licensed - -function readUInt32(buf, pos) { - return ((buf[pos]) | - (buf[pos + 1] << 8) | - (buf[pos + 2] << 16)) + - (buf[pos + 3] * 0x1000000); -} - -function writeInt32(buf, val, pos) { - buf[pos] = val; - buf[pos + 1] = (val >>> 8); - buf[pos + 2] = (val >>> 16); - buf[pos + 3] = (val >>> 24); -} - -function readInt32(buf, pos) { - return ((buf[pos]) | - (buf[pos + 1] << 8) | - (buf[pos + 2] << 16)) + - (buf[pos + 3] << 24); -} - -function readUtf8(buf, pos, end) { - var str = ''; - var i = pos; - - while (i < end) { - var b0 = buf[i]; - var c = null; // codepoint - var bytesPerSequence = - b0 > 0xEF ? 4 : - b0 > 0xDF ? 3 : - b0 > 0xBF ? 2 : 1; - - if (i + bytesPerSequence > end) { break; } - - var b1, b2, b3; - - if (bytesPerSequence === 1) { - if (b0 < 0x80) { - c = b0; - } - } else if (bytesPerSequence === 2) { - b1 = buf[i + 1]; - if ((b1 & 0xC0) === 0x80) { - c = (b0 & 0x1F) << 0x6 | (b1 & 0x3F); - if (c <= 0x7F) { - c = null; - } - } - } else if (bytesPerSequence === 3) { - b1 = buf[i + 1]; - b2 = buf[i + 2]; - if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80) { - c = (b0 & 0xF) << 0xC | (b1 & 0x3F) << 0x6 | (b2 & 0x3F); - if (c <= 0x7FF || (c >= 0xD800 && c <= 0xDFFF)) { - c = null; - } - } - } else if (bytesPerSequence === 4) { - b1 = buf[i + 1]; - b2 = buf[i + 2]; - b3 = buf[i + 3]; - if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) { - c = (b0 & 0xF) << 0x12 | (b1 & 0x3F) << 0xC | (b2 & 0x3F) << 0x6 | (b3 & 0x3F); - if (c <= 0xFFFF || c >= 0x110000) { - c = null; - } - } - } - - if (c === null) { - c = 0xFFFD; - bytesPerSequence = 1; - - } else if (c > 0xFFFF) { - c -= 0x10000; - str += String.fromCharCode(c >>> 10 & 0x3FF | 0xD800); - c = 0xDC00 | c & 0x3FF; - } - - str += String.fromCharCode(c); - i += bytesPerSequence; - } - - return str; -} - -function writeUtf8(buf, str, pos) { - for (var i = 0, c, lead; i < str.length; i++) { - c = str.charCodeAt(i); // code point - - if (c > 0xD7FF && c < 0xE000) { - if (lead) { - if (c < 0xDC00) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - lead = c; - continue; - } else { - c = lead - 0xD800 << 10 | c - 0xDC00 | 0x10000; - lead = null; - } - } else { - if (c > 0xDBFF || (i + 1 === str.length)) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - } else { - lead = c; - } - continue; - } - } else if (lead) { - buf[pos++] = 0xEF; - buf[pos++] = 0xBF; - buf[pos++] = 0xBD; - lead = null; - } - - if (c < 0x80) { - buf[pos++] = c; - } else { - if (c < 0x800) { - buf[pos++] = c >> 0x6 | 0xC0; - } else { - if (c < 0x10000) { - buf[pos++] = c >> 0xC | 0xE0; - } else { - buf[pos++] = c >> 0x12 | 0xF0; - buf[pos++] = c >> 0xC & 0x3F | 0x80; - } - buf[pos++] = c >> 0x6 & 0x3F | 0x80; - } - buf[pos++] = c & 0x3F | 0x80; - } - } - return pos; -} - -var index$5 = Point$1; - -function Point$1(x, y) { - this.x = x; - this.y = y; -} - -Point$1.prototype = { - clone: function() { return new Point$1(this.x, this.y); }, - - add: function(p) { return this.clone()._add(p); }, - sub: function(p) { return this.clone()._sub(p); }, - mult: function(k) { return this.clone()._mult(k); }, - div: function(k) { return this.clone()._div(k); }, - rotate: function(a) { return this.clone()._rotate(a); }, - matMult: function(m) { return this.clone()._matMult(m); }, - unit: function() { return this.clone()._unit(); }, - perp: function() { return this.clone()._perp(); }, - round: function() { return this.clone()._round(); }, - - mag: function() { - return Math.sqrt(this.x * this.x + this.y * this.y); - }, - - equals: function(p) { - return this.x === p.x && - this.y === p.y; - }, - - dist: function(p) { - return Math.sqrt(this.distSqr(p)); - }, - - distSqr: function(p) { - var dx = p.x - this.x, - dy = p.y - this.y; - return dx * dx + dy * dy; - }, - - angle: function() { - return Math.atan2(this.y, this.x); - }, - - angleTo: function(b) { - return Math.atan2(this.y - b.y, this.x - b.x); - }, - - angleWith: function(b) { - return this.angleWithSep(b.x, b.y); - }, - - // Find the angle of the two vectors, solving the formula for the cross product a x b = |a||b|sin(θ) for θ. - angleWithSep: function(x, y) { - return Math.atan2( - this.x * y - this.y * x, - this.x * x + this.y * y); - }, - - _matMult: function(m) { - var x = m[0] * this.x + m[1] * this.y, - y = m[2] * this.x + m[3] * this.y; - this.x = x; - this.y = y; - return this; - }, - - _add: function(p) { - this.x += p.x; - this.y += p.y; - return this; - }, - - _sub: function(p) { - this.x -= p.x; - this.y -= p.y; - return this; - }, - - _mult: function(k) { - this.x *= k; - this.y *= k; - return this; - }, - - _div: function(k) { - this.x /= k; - this.y /= k; - return this; - }, - - _unit: function() { - this._div(this.mag()); - return this; - }, - - _perp: function() { - var y = this.y; - this.y = this.x; - this.x = -y; - return this; - }, - - _rotate: function(angle) { - var cos = Math.cos(angle), - sin = Math.sin(angle), - x = cos * this.x - sin * this.y, - y = sin * this.x + cos * this.y; - this.x = x; - this.y = y; - return this; - }, - - _round: function() { - this.x = Math.round(this.x); - this.y = Math.round(this.y); - return this; - } -}; - -// constructs Point from an array if necessary -Point$1.convert = function (a) { - if (a instanceof Point$1) { - return a; - } - if (Array.isArray(a)) { - return new Point$1(a[0], a[1]); - } - return a; -}; - -var Point = index$5; - -var vectortilefeature = VectorTileFeature$2; - -function VectorTileFeature$2(pbf, end, extent, keys, values) { - // Public - this.properties = {}; - this.extent = extent; - this.type = 0; - - // Private - this._pbf = pbf; - this._geometry = -1; - this._keys = keys; - this._values = values; - - pbf.readFields(readFeature, this, end); -} - -function readFeature(tag, feature, pbf) { - if (tag == 1) { feature.id = pbf.readVarint(); } - else if (tag == 2) { readTag(pbf, feature); } - else if (tag == 3) { feature.type = pbf.readVarint(); } - else if (tag == 4) { feature._geometry = pbf.pos; } -} - -function readTag(pbf, feature) { - var end = pbf.readVarint() + pbf.pos; - - while (pbf.pos < end) { - var key = feature._keys[pbf.readVarint()], - value = feature._values[pbf.readVarint()]; - feature.properties[key] = value; - } -} - -VectorTileFeature$2.types = ['Unknown', 'Point', 'LineString', 'Polygon']; - -VectorTileFeature$2.prototype.loadGeometry = function() { - var pbf = this._pbf; - pbf.pos = this._geometry; - - var end = pbf.readVarint() + pbf.pos, - cmd = 1, - length = 0, - x = 0, - y = 0, - lines = [], - line; - - while (pbf.pos < end) { - if (!length) { - var cmdLen = pbf.readVarint(); - cmd = cmdLen & 0x7; - length = cmdLen >> 3; - } - - length--; - - if (cmd === 1 || cmd === 2) { - x += pbf.readSVarint(); - y += pbf.readSVarint(); - - if (cmd === 1) { // moveTo - if (line) { lines.push(line); } - line = []; - } - - line.push(new Point(x, y)); - - } else if (cmd === 7) { - - // Workaround for https://github.com/mapbox/mapnik-vector-tile/issues/90 - if (line) { - line.push(line[0].clone()); // closePolygon - } - - } else { - throw new Error('unknown command ' + cmd); - } - } - - if (line) { lines.push(line); } - - return lines; -}; - -VectorTileFeature$2.prototype.bbox = function() { - var pbf = this._pbf; - pbf.pos = this._geometry; - - var end = pbf.readVarint() + pbf.pos, - cmd = 1, - length = 0, - x = 0, - y = 0, - x1 = Infinity, - x2 = -Infinity, - y1 = Infinity, - y2 = -Infinity; - - while (pbf.pos < end) { - if (!length) { - var cmdLen = pbf.readVarint(); - cmd = cmdLen & 0x7; - length = cmdLen >> 3; - } - - length--; - - if (cmd === 1 || cmd === 2) { - x += pbf.readSVarint(); - y += pbf.readSVarint(); - if (x < x1) { x1 = x; } - if (x > x2) { x2 = x; } - if (y < y1) { y1 = y; } - if (y > y2) { y2 = y; } - - } else if (cmd !== 7) { - throw new Error('unknown command ' + cmd); - } - } - - return [x1, y1, x2, y2]; -}; - -VectorTileFeature$2.prototype.toGeoJSON = function(x, y, z) { - var size = this.extent * Math.pow(2, z), - x0 = this.extent * x, - y0 = this.extent * y, - coords = this.loadGeometry(), - type = VectorTileFeature$2.types[this.type], - i, j; - - function project(line) { - for (var j = 0; j < line.length; j++) { - var p = line[j], y2 = 180 - (p.y + y0) * 360 / size; - line[j] = [ - (p.x + x0) * 360 / size - 180, - 360 / Math.PI * Math.atan(Math.exp(y2 * Math.PI / 180)) - 90 - ]; - } - } - - switch (this.type) { - case 1: - var points = []; - for (i = 0; i < coords.length; i++) { - points[i] = coords[i][0]; - } - coords = points; - project(coords); - break; - - case 2: - for (i = 0; i < coords.length; i++) { - project(coords[i]); - } - break; - - case 3: - coords = classifyRings(coords); - for (i = 0; i < coords.length; i++) { - for (j = 0; j < coords[i].length; j++) { - project(coords[i][j]); - } - } - break; - } - - if (coords.length === 1) { - coords = coords[0]; - } else { - type = 'Multi' + type; - } - - var result = { - type: "Feature", - geometry: { - type: type, - coordinates: coords - }, - properties: this.properties - }; - - if ('id' in this) { - result.id = this.id; - } - - return result; -}; - -// classifies an array of rings into polygons with outer rings and holes - -function classifyRings(rings) { - var len = rings.length; - - if (len <= 1) { return [rings]; } - - var polygons = [], - polygon, - ccw; - - for (var i = 0; i < len; i++) { - var area = signedArea(rings[i]); - if (area === 0) { continue; } - - if (ccw === undefined) { ccw = area < 0; } - - if (ccw === area < 0) { - if (polygon) { polygons.push(polygon); } - polygon = [rings[i]]; - - } else { - polygon.push(rings[i]); - } - } - if (polygon) { polygons.push(polygon); } - - return polygons; -} - -function signedArea(ring) { - var sum = 0; - for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) { - p1 = ring[i]; - p2 = ring[j]; - sum += (p2.x - p1.x) * (p1.y + p2.y); - } - return sum; -} - -var VectorTileFeature$1 = vectortilefeature; - -var vectortilelayer = VectorTileLayer$2; - -function VectorTileLayer$2(pbf, end) { - // Public - this.version = 1; - this.name = null; - this.extent = 4096; - this.length = 0; - - // Private - this._pbf = pbf; - this._keys = []; - this._values = []; - this._features = []; - - pbf.readFields(readLayer, this, end); - - this.length = this._features.length; -} - -function readLayer(tag, layer, pbf) { - if (tag === 15) { layer.version = pbf.readVarint(); } - else if (tag === 1) { layer.name = pbf.readString(); } - else if (tag === 5) { layer.extent = pbf.readVarint(); } - else if (tag === 2) { layer._features.push(pbf.pos); } - else if (tag === 3) { layer._keys.push(pbf.readString()); } - else if (tag === 4) { layer._values.push(readValueMessage(pbf)); } -} - -function readValueMessage(pbf) { - var value = null, - end = pbf.readVarint() + pbf.pos; - - while (pbf.pos < end) { - var tag = pbf.readVarint() >> 3; - - value = tag === 1 ? pbf.readString() : - tag === 2 ? pbf.readFloat() : - tag === 3 ? pbf.readDouble() : - tag === 4 ? pbf.readVarint64() : - tag === 5 ? pbf.readVarint() : - tag === 6 ? pbf.readSVarint() : - tag === 7 ? pbf.readBoolean() : null; - } - - return value; -} - -// return feature `i` from this layer as a `VectorTileFeature` -VectorTileLayer$2.prototype.feature = function(i) { - if (i < 0 || i >= this._features.length) { throw new Error('feature index out of bounds'); } - - this._pbf.pos = this._features[i]; - - var end = this._pbf.readVarint() + this._pbf.pos; - return new VectorTileFeature$1(this._pbf, end, this.extent, this._keys, this._values); -}; - -var VectorTileLayer$1 = vectortilelayer; - -var vectortile = VectorTile$1; - -function VectorTile$1(pbf, end) { - this.layers = pbf.readFields(readTile, {}, end); -} - -function readTile(tag, layers, pbf) { - if (tag === 3) { - var layer = new VectorTileLayer$1(pbf, pbf.readVarint() + pbf.pos); - if (layer.length) { layers[layer.name] = layer; } - } -} - -var VectorTile = vectortile; - -L.SVG.Tile = L.SVG.extend({ - - initialize: function (tileCoord, tileSize, options) { - L.SVG.prototype.initialize.call(this, options); - this._tileCoord = tileCoord; - this._size = tileSize; - - this._initContainer(); - this._container.setAttribute('width', this._size.x); - this._container.setAttribute('height', this._size.y); - this._container.setAttribute('viewBox', [0, 0, this._size.x, this._size.y].join(' ')); - - this._layers = {}; - }, - - getCoord: function() { - return this._tileCoord; - }, - - getContainer: function() { - return this._container; - }, - - onAdd: L.Util.falseFn, - - addTo: function(map) { - this._map = map; - if (this.options.interactive) { - for (var i in this._layers) { - var layer = this._layers[i]; - // By default, Leaflet tiles do not have pointer events. - layer._path.style.pointerEvents = 'auto'; - this._map._targets[L.stamp(layer._path)] = layer; - } - } - }, - - removeFrom: function (map) { - if (this.options.interactive) { - for (var i in this._layers) { - var layer = this._layers[i]; - delete this._map._targets[L.stamp(layer._path)]; - } - } - delete this._map; - }, - - _initContainer: function() { - L.SVG.prototype._initContainer.call(this); - var rect = L.SVG.create('rect'); - }, - - /// TODO: Modify _initPath to include an extra parameter, a group name - /// to order symbolizers by z-index - - _addPath: function (layer) { - this._rootGroup.appendChild(layer._path); - this._layers[L.stamp(layer)] = layer; - }, - - _updateIcon: function (layer) { - var path = layer._path = L.SVG.create('image'), - icon = layer.options.icon, - options = icon.options, - size = L.point(options.iconSize), - anchor = options.iconAnchor || - size && size.divideBy(2, true), - p = layer._point.subtract(anchor); - path.setAttribute('x', p.x); - path.setAttribute('y', p.y); - path.setAttribute('width', size.x + 'px'); - path.setAttribute('height', size.y + 'px'); - path.setAttribute('href', options.iconUrl); - } -}); - - -L.svg.tile = function(tileCoord, tileSize, opts){ - return new L.SVG.Tile(tileCoord, tileSize, opts); -}; - -// 🍂class Symbolizer -// 🍂inherits Class -// The abstract Symbolizer class is mostly equivalent in concept to a `L.Path` - it's an interface for -// polylines, polygons and circles. But instead of representing leaflet Layers, -// it represents things that have to be drawn inside a vector tile. - -// A vector tile *data layer* might have zero, one, or more *symbolizer definitions* -// A vector tile *feature* might have zero, one, or more *symbolizers*. -// The actual symbolizers applied will depend on filters and the symbolizer functions. - -var Symbolizer = L.Class.extend({ - // 🍂method initialize(feature: GeoJSON, pxPerExtent: Number) - // Initializes a new Line Symbolizer given a GeoJSON feature and the - // pixel-to-coordinate-units ratio. Internal use only. - - // 🍂method render(renderer, style) - // Renders this symbolizer in the given tiled renderer, with the given - // `L.Path` options. Internal use only. - render: function(renderer, style) { - this._renderer = renderer; - this.options = style; - renderer._initPath(this); - renderer._updateStyle(this); - }, - - // 🍂method render(renderer, style) - // Updates the `L.Path` options used to style this symbolizer, and re-renders it. - // Internal use only. - updateStyle: function(renderer, style) { - this.options = style; - renderer._updateStyle(this); - }, - - _getPixelBounds: function() { - var parts = this._parts; - var bounds = L.bounds([]); - for (var i = 0; i < parts.length; i++) { - var part = parts[i]; - for (var j = 0; j < part.length; j++) { - bounds.extend(part[j]); - } - } - - var w = this._clickTolerance(), - p = new L.Point(w, w); - - bounds.min._subtract(p); - bounds.max._add(p); - - return bounds; - }, - _clickTolerance: L.Path.prototype._clickTolerance, -}); - -// Contains mixins which are common to the Line Symbolizer and the Fill Symbolizer. - -var PolyBase = { - _makeFeatureParts: function(feat, pxPerExtent) { - var rings = feat.geometry; - var coord; - - this._parts = []; - for (var i = 0; i < rings.length; i++) { - var ring = rings[i]; - var part = []; - for (var j = 0; j < ring.length; j++) { - coord = ring[j]; - // Protobuf vector tiles return {x: , y:} - // Geojson-vt returns [,] - part.push(L.point(coord).scaleBy(pxPerExtent)); - } - this._parts.push(part); - } - }, - - makeInteractive: function() { - this._pxBounds = this._getPixelBounds(); - } -}; - -// 🍂class PointSymbolizer -// 🍂inherits CircleMarker -// A symbolizer for points. - -var PointSymbolizer = L.CircleMarker.extend({ - includes: Symbolizer.prototype, - - statics: { - iconCache: {} - }, - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - Symbolizer.prototype.render.call(this, renderer, style); - this._radius = style.radius || L.CircleMarker.prototype.options.radius; - this._updatePath(); - }, - - _makeFeatureParts: function(feat, pxPerExtent) { - var coord = feat.geometry[0]; - if (typeof coord[0] === 'object' && 'x' in coord[0]) { - // Protobuf vector tiles return [{x: , y:}] - this._point = L.point(coord[0]).scaleBy(pxPerExtent); - this._empty = L.Util.falseFn; - } else { - // Geojson-vt returns [,] - this._point = L.point(coord).scaleBy(pxPerExtent); - this._empty = L.Util.falseFn; - } - }, - - makeInteractive: function() { - this._updateBounds(); - }, - - updateStyle: function(renderer, style) { - this._radius = style.radius || this._radius; - this._updateBounds(); - return Symbolizer.prototype.updateStyle.call(this, renderer, style); - }, - - _updateBounds: function() { - var icon = this.options.icon; - if (icon) { - var size = L.point(icon.options.iconSize), - anchor = icon.options.iconAnchor || - size && size.divideBy(2, true), - p = this._point.subtract(anchor); - this._pxBounds = new L.Bounds(p, p.add(icon.options.iconSize)); - } else { - L.CircleMarker.prototype._updateBounds.call(this); - } - }, - - _updatePath: function() { - if (this.options.icon) { - this._renderer._updateIcon(this); - } else { - L.CircleMarker.prototype._updatePath.call(this); - } - }, - - _getImage: function () { - if (this.options.icon) { - var url = this.options.icon.options.iconUrl, - img = PointSymbolizer.iconCache[url]; - if (!img) { - var icon = this.options.icon; - img = PointSymbolizer.iconCache[url] = icon.createIcon(); - } - return img; - } else { - return null; - } - - }, - - _containsPoint: function(p) { - var icon = this.options.icon; - if (icon) { - return this._pxBounds.contains(p); - } else { - return L.CircleMarker.prototype._containsPoint.call(this, p); - } - } -}); - -// 🍂class LineSymbolizer -// 🍂inherits Polyline -// A symbolizer for lines. Can be applied to line and polygon features. - -var LineSymbolizer = L.Polyline.extend({ - includes: [Symbolizer.prototype, PolyBase], - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - style.fill = false; - Symbolizer.prototype.render.call(this, renderer, style); - this._updatePath(); - }, - - updateStyle: function(renderer, style) { - style.fill = false; - Symbolizer.prototype.updateStyle.call(this, renderer, style); - }, -}); - -// 🍂class FillSymbolizer -// 🍂inherits Polyline -// A symbolizer for filled areas. Applies only to polygon features. - -var FillSymbolizer = L.Polygon.extend({ - includes: [Symbolizer.prototype, PolyBase], - - initialize: function(feature, pxPerExtent) { - this.properties = feature.properties; - this._makeFeatureParts(feature, pxPerExtent); - }, - - render: function(renderer, style) { - Symbolizer.prototype.render.call(this, renderer, style); - this._updatePath(); - } -}); - -/* 🍂class VectorGrid - * 🍂inherits GridLayer - * - * A `VectorGrid` is a generic, abstract class for displaying tiled vector data. - * it provides facilities for symbolizing and rendering the data in the vector - * tiles, but lacks the functionality to fetch the vector tiles from wherever - * they are. - * - * Extends Leaflet's `L.GridLayer`. - */ - -L.VectorGrid = L.GridLayer.extend({ - - options: { - // 🍂option rendererFactory = L.svg.tile - // A factory method which will be used to instantiate the per-tile renderers. - rendererFactory: L.svg.tile, - - // 🍂option vectorTileLayerStyles: Object = {} - // A data structure holding initial symbolizer definitions for the vector features. - vectorTileLayerStyles: {}, - - // 🍂option interactive: Boolean = false - // Whether this `VectorGrid` fires `Interactive Layer` events. - interactive: false, - - // 🍂option getFeatureId: Function = undefined - // A function that, given a vector feature, returns an unique identifier for it, e.g. - // `function(feat) { return feat.properties.uniqueIdField; }`. - // Must be defined for `setFeatureStyle` to work. - }, - - initialize: function(options) { - L.setOptions(this, options); - L.GridLayer.prototype.initialize.apply(this, arguments); - if (this.options.getFeatureId) { - this._vectorTiles = {}; - this._overriddenStyles = {}; - this.on('tileunload', function(e) { - var key = this._tileCoordsToKey(e.coords), - tile = this._vectorTiles[key]; - - if (tile && this._map) { - tile.removeFrom(this._map); - } - delete this._vectorTiles[key]; - }, this); - } - this._dataLayerNames = {}; - }, - - createTile: function(coords, done) { - var storeFeatures = this.options.getFeatureId; - - var tileSize = this.getTileSize(); - var renderer = this.options.rendererFactory(coords, tileSize, this.options); - - var vectorTilePromise = this._getVectorTilePromise(coords); - - if (storeFeatures) { - this._vectorTiles[this._tileCoordsToKey(coords)] = renderer; - renderer._features = {}; - } - - vectorTilePromise.then( function renderTile(vectorTile) { - for (var layerName in vectorTile.layers) { - this._dataLayerNames[layerName] = true; - var layer = vectorTile.layers[layerName]; - - var pxPerExtent = this.getTileSize().divideBy(layer.extent); - - var layerStyle = this.options.vectorTileLayerStyles[ layerName ] || - L.Path.prototype.options; - - for (var i = 0; i < layer.features.length; i++) { - var feat = layer.features[i]; - var id; - - var styleOptions = layerStyle; - if (storeFeatures) { - id = this.options.getFeatureId(feat); - var styleOverride = this._overriddenStyles[id]; - if (styleOverride) { - if (styleOverride[layerName]) { - styleOptions = styleOverride[layerName]; - } else { - styleOptions = styleOverride; - } - } - } - - if (styleOptions instanceof Function) { - styleOptions = styleOptions(feat.properties, coords.z); - } - - if (!(styleOptions instanceof Array)) { - styleOptions = [styleOptions]; - } - - if (!styleOptions.length) { - continue; - } - - var featureLayer = this._createLayer(feat, pxPerExtent); - - for (var j = 0; j < styleOptions.length; j++) { - var style = L.extend({}, L.Path.prototype.options, styleOptions[j]); - featureLayer.render(renderer, style); - renderer._addPath(featureLayer); - } - - if (this.options.interactive) { - featureLayer.makeInteractive(); - } - - if (storeFeatures) { - renderer._features[id] = { - layerName: layerName, - feature: featureLayer - }; - } - } - - } - if (this._map != null) { - renderer.addTo(this._map); - } - L.Util.requestAnimFrame(done.bind(coords, null, null)); - }.bind(this)); - - return renderer.getContainer(); - }, - - // 🍂method setFeatureStyle(id: Number, layerStyle: L.Path Options): this - // Given the unique ID for a vector features (as per the `getFeatureId` option), - // re-symbolizes that feature across all tiles it appears in. - setFeatureStyle: function(id, layerStyle) { - this._overriddenStyles[id] = layerStyle; - - for (var tileKey in this._vectorTiles) { - var tile = this._vectorTiles[tileKey]; - var features = tile._features; - var data = features[id]; - if (data) { - var feat = data.feature; - - var styleOptions = layerStyle; - if (layerStyle[data.layerName]) { - styleOptions = layerStyle[data.layerName]; - } - - this._updateStyles(feat, tile, styleOptions); - } - } - return this; - }, - - // 🍂method setFeatureStyle(id: Number): this - // Reverts the effects of a previous `setFeatureStyle` call. - resetFeatureStyle: function(id) { - delete this._overriddenStyles[id]; - - for (var tileKey in this._vectorTiles) { - var tile = this._vectorTiles[tileKey]; - var features = tile._features; - var data = features[id]; - if (data) { - var feat = data.feature; - var styleOptions = this.options.vectorTileLayerStyles[ data.layerName ] || - L.Path.prototype.options; - this._updateStyles(feat, tile, styleOptions); - } - } - return this; - }, - - // 🍂method getDataLayerNames(): Array - // Returns an array of strings, with all the known names of data layers in - // the vector tiles displayed. Useful for introspection. - getDataLayerNames: function() { - return Object.keys(this._dataLayerNames); - }, - - _updateStyles: function(feat, renderer, styleOptions) { - styleOptions = (styleOptions instanceof Function) ? - styleOptions(feat.properties, renderer.getCoord().z) : - styleOptions; - - if (!(styleOptions instanceof Array)) { - styleOptions = [styleOptions]; - } - - for (var j = 0; j < styleOptions.length; j++) { - var style = L.extend({}, L.Path.prototype.options, styleOptions[j]); - feat.updateStyle(renderer, style); - } - }, - - _createLayer: function(feat, pxPerExtent, layerStyle) { - var layer; - switch (feat.type) { - case 1: - layer = new PointSymbolizer(feat, pxPerExtent); - break; - case 2: - layer = new LineSymbolizer(feat, pxPerExtent); - break; - case 3: - layer = new FillSymbolizer(feat, pxPerExtent); - break; - } - - if (this.options.interactive) { - layer.addEventParent(this); - } - - return layer; - }, -}); - -/* - * 🍂section Extension methods - * - * Classes inheriting from `VectorGrid` **must** define the `_getVectorTilePromise` private method. - * - * 🍂method getVectorTilePromise(coords: Object): Promise - * Given a `coords` object in the form of `{x: Number, y: Number, z: Number}`, - * this function must return a `Promise` for a vector tile. - * - */ -L.vectorGrid = function (options) { - return new L.VectorGrid(options); -}; - -/* - * 🍂class VectorGrid.Protobuf - * 🍂extends VectorGrid - * - * A `VectorGrid` for vector tiles fetched from the internet. - * Tiles are supposed to be protobufs (AKA "protobuffer" or "Protocol Buffers"), - * containing data which complies with the - * [MapBox Vector Tile Specification](https://github.com/mapbox/vector-tile-spec/tree/master/2.1). - * - * This is the format used by: - * - Mapbox Vector Tiles - * - Mapzen Vector Tiles - * - ESRI Vector Tiles - * - [OpenMapTiles hosted Vector Tiles](https://openmaptiles.com/hosting/) - * - * 🍂example - * - * You must initialize a `VectorGrid.Protobuf` with a URL template, just like in - * `L.TileLayer`s. The difference is that the template must point to vector tiles - * (usually `.pbf` or `.mvt`) instead of raster (`.png` or `.jpg`) tiles, and that - * you should define the styling for all the features. - * - *

- * - * For OpenMapTiles, with a key from [https://openmaptiles.org/docs/host/use-cdn/](https://openmaptiles.org/docs/host/use-cdn/), - * initialization looks like this: - * - * ``` - * L.vectorGrid.protobuf("https://free-{s}.tilehosting.com/data/v3/{z}/{x}/{y}.pbf.pict?key={key}", { - * vectorTileLayerStyles: { ... }, - * subdomains: "0123", - * key: 'abcdefghi01234567890', - * maxNativeZoom: 14 - * }).addTo(map); - * ``` - * - * And for Mapbox vector tiles, it looks like this: - * - * ``` - * L.vectorGrid.protobuf("https://{s}.tiles.mapbox.com/v4/mapbox.mapbox-streets-v6/{z}/{x}/{y}.vector.pbf?access_token={token}", { - * vectorTileLayerStyles: { ... }, - * subdomains: "abcd", - * token: "pk.abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRTS.TUVWXTZ0123456789abcde" - * }).addTo(map); - * ``` - */ -L.VectorGrid.Protobuf = L.VectorGrid.extend({ - - options: { - // 🍂section - // As with `L.TileLayer`, the URL template might contain a reference to - // any option (see the example above and note the `{key}` or `token` in the URL - // template, and the corresponding option). - // - // 🍂option subdomains: String = 'abc' - // Akin to the `subdomains` option for `L.TileLayer`. - subdomains: 'abc', // Like L.TileLayer - // - // 🍂option fetchOptions: Object = {} - // options passed to `fetch`, e.g. {credentials: 'same-origin'} to send cookie for the current domain - fetchOptions: {} - }, - - initialize: function(url, options) { - // Inherits options from geojson-vt! -// this._slicer = geojsonvt(geojson, options); - this._url = url; - L.VectorGrid.prototype.initialize.call(this, options); - }, - - // 🍂method setUrl(url: String, noRedraw?: Boolean): this - // Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`). - setUrl: function(url, noRedraw) { - this._url = url; - - if (!noRedraw) { - this.redraw(); - } - - return this; - }, - - _getSubdomain: L.TileLayer.prototype._getSubdomain, - - _getVectorTilePromise: function(coords) { - var data = { - s: this._getSubdomain(coords), - x: coords.x, - y: coords.y, - z: coords.z -// z: this._getZoomForUrl() /// TODO: Maybe replicate TileLayer's maxNativeZoom - }; - if (this._map && !this._map.options.crs.infinite) { - var invertedY = this._globalTileRange.max.y - coords.y; - if (this.options.tms) { // Should this option be available in Leaflet.VectorGrid? - data['y'] = invertedY; - } - data['-y'] = invertedY; - } - - var tileUrl = L.Util.template(this._url, L.extend(data, this.options)); - - return fetch(tileUrl, this.options.fetchOptions).then(function(response){ - - if (!response.ok) { - return {layers:[]}; - } - - return response.blob().then( function (blob) { -// console.log(blob); - - var reader = new FileReader(); - return new Promise(function(resolve){ - reader.addEventListener("loadend", function() { - // reader.result contains the contents of blob as a typed array - - // blob.type === 'application/x-protobuf' - var pbf = new index( reader.result ); -// console.log(pbf); - return resolve(new VectorTile( pbf )); - - }); - reader.readAsArrayBuffer(blob); - }); - }); - }).then(function(json){ - -// console.log('Vector tile:', json.layers); -// console.log('Vector tile water:', json.layers.water); // Instance of VectorTileLayer - - // Normalize feature getters into actual instanced features - for (var layerName in json.layers) { - var feats = []; - - for (var i=0; i maxSqDist) {\n index = i;\n maxSqDist = sqDist;\n }\n }\n\n if (maxSqDist > sqTolerance) {\n points[index][2] = maxSqDist; // save the point importance in squared pixels as a z coordinate\n stack.push(first);\n stack.push(index);\n first = index;\n\n } else {\n last = stack.pop();\n first = stack.pop();\n }\n }\n}\n\n// square distance from a point to a segment\nfunction getSqSegDist(p, a, b) {\n\n var x = a[0], y = a[1],\n bx = b[0], by = b[1],\n px = p[0], py = p[1],\n dx = bx - x,\n dy = by - y;\n\n if (dx !== 0 || dy !== 0) {\n\n var t = ((px - x) * dx + (py - y) * dy) / (dx * dx + dy * dy);\n\n if (t > 1) {\n x = bx;\n y = by;\n\n } else if (t > 0) {\n x += dx * t;\n y += dy * t;\n }\n }\n\n dx = px - x;\n dy = py - y;\n\n return dx * dx + dy * dy;\n}\n\nvar convert_1 = convert$1;\n\nvar simplify = simplify_1;\n\n// converts GeoJSON feature into an intermediate projected JSON vector format with simplification data\n\nfunction convert$1(data, tolerance) {\n var features = [];\n\n if (data.type === 'FeatureCollection') {\n for (var i = 0; i < data.features.length; i++) {\n convertFeature(features, data.features[i], tolerance);\n }\n } else if (data.type === 'Feature') {\n convertFeature(features, data, tolerance);\n\n } else {\n // single geometry or a geometry collection\n convertFeature(features, {geometry: data}, tolerance);\n }\n return features;\n}\n\nfunction convertFeature(features, feature, tolerance) {\n if (feature.geometry === null) {\n // ignore features with null geometry\n return;\n }\n\n var geom = feature.geometry,\n type = geom.type,\n coords = geom.coordinates,\n tags = feature.properties,\n i, j, rings, projectedRing;\n\n if (type === 'Point') {\n features.push(create(tags, 1, [projectPoint(coords)]));\n\n } else if (type === 'MultiPoint') {\n features.push(create(tags, 1, project(coords)));\n\n } else if (type === 'LineString') {\n features.push(create(tags, 2, [project(coords, tolerance)]));\n\n } else if (type === 'MultiLineString' || type === 'Polygon') {\n rings = [];\n for (i = 0; i < coords.length; i++) {\n projectedRing = project(coords[i], tolerance);\n if (type === 'Polygon') { projectedRing.outer = (i === 0); }\n rings.push(projectedRing);\n }\n features.push(create(tags, type === 'Polygon' ? 3 : 2, rings));\n\n } else if (type === 'MultiPolygon') {\n rings = [];\n for (i = 0; i < coords.length; i++) {\n for (j = 0; j < coords[i].length; j++) {\n projectedRing = project(coords[i][j], tolerance);\n projectedRing.outer = (j === 0);\n rings.push(projectedRing);\n }\n }\n features.push(create(tags, 3, rings));\n\n } else if (type === 'GeometryCollection') {\n for (i = 0; i < geom.geometries.length; i++) {\n convertFeature(features, {\n geometry: geom.geometries[i],\n properties: tags\n }, tolerance);\n }\n\n } else {\n throw new Error('Input data is not a valid GeoJSON object.');\n }\n}\n\nfunction create(tags, type, geometry) {\n var feature = {\n geometry: geometry,\n type: type,\n tags: tags || null,\n min: [2, 1], // initial bbox values;\n max: [-1, 0] // note that coords are usually in [0..1] range\n };\n calcBBox(feature);\n return feature;\n}\n\nfunction project(lonlats, tolerance) {\n var projected = [];\n for (var i = 0; i < lonlats.length; i++) {\n projected.push(projectPoint(lonlats[i]));\n }\n if (tolerance) {\n simplify(projected, tolerance);\n calcSize(projected);\n }\n return projected;\n}\n\nfunction projectPoint(p) {\n var sin = Math.sin(p[1] * Math.PI / 180),\n x = (p[0] / 360 + 0.5),\n y = (0.5 - 0.25 * Math.log((1 + sin) / (1 - sin)) / Math.PI);\n\n y = y < 0 ? 0 :\n y > 1 ? 1 : y;\n\n return [x, y, 0];\n}\n\n// calculate area and length of the poly\nfunction calcSize(points) {\n var area = 0,\n dist = 0;\n\n for (var i = 0, a, b; i < points.length - 1; i++) {\n a = b || points[i];\n b = points[i + 1];\n\n area += a[0] * b[1] - b[0] * a[1];\n\n // use Manhattan distance instead of Euclidian one to avoid expensive square root computation\n dist += Math.abs(b[0] - a[0]) + Math.abs(b[1] - a[1]);\n }\n points.area = Math.abs(area / 2);\n points.dist = dist;\n}\n\n// calculate the feature bounding box for faster clipping later\nfunction calcBBox(feature) {\n var geometry = feature.geometry,\n min = feature.min,\n max = feature.max;\n\n if (feature.type === 1) { calcRingBBox(min, max, geometry); }\n else { for (var i = 0; i < geometry.length; i++) { calcRingBBox(min, max, geometry[i]); } }\n\n return feature;\n}\n\nfunction calcRingBBox(min, max, points) {\n for (var i = 0, p; i < points.length; i++) {\n p = points[i];\n min[0] = Math.min(p[0], min[0]);\n max[0] = Math.max(p[0], max[0]);\n min[1] = Math.min(p[1], min[1]);\n max[1] = Math.max(p[1], max[1]);\n }\n}\n\nvar tile = transformTile;\nvar point = transformPoint;\n\n// Transforms the coordinates of each feature in the given tile from\n// mercator-projected space into (extent x extent) tile space.\nfunction transformTile(tile, extent) {\n if (tile.transformed) { return tile; }\n\n var z2 = tile.z2,\n tx = tile.x,\n ty = tile.y,\n i, j, k;\n\n for (i = 0; i < tile.features.length; i++) {\n var feature = tile.features[i],\n geom = feature.geometry,\n type = feature.type;\n\n if (type === 1) {\n for (j = 0; j < geom.length; j++) { geom[j] = transformPoint(geom[j], extent, z2, tx, ty); }\n\n } else {\n for (j = 0; j < geom.length; j++) {\n var ring = geom[j];\n for (k = 0; k < ring.length; k++) { ring[k] = transformPoint(ring[k], extent, z2, tx, ty); }\n }\n }\n }\n\n tile.transformed = true;\n\n return tile;\n}\n\nfunction transformPoint(p, extent, z2, tx, ty) {\n var x = Math.round(extent * (p[0] * z2 - tx)),\n y = Math.round(extent * (p[1] * z2 - ty));\n return [x, y];\n}\n\nvar transform$1 = {\n tile: tile,\n point: point\n};\n\nvar clip_1 = clip$1;\n\n/* clip features between two axis-parallel lines:\n * | |\n * ___|___ | /\n * / | \____|____/\n * | |\n */\n\nfunction clip$1(features, scale, k1, k2, axis, intersect, minAll, maxAll) {\n\n k1 /= scale;\n k2 /= scale;\n\n if (minAll >= k1 && maxAll <= k2) { return features; } // trivial accept\n else if (minAll > k2 || maxAll < k1) { return null; } // trivial reject\n\n var clipped = [];\n\n for (var i = 0; i < features.length; i++) {\n\n var feature = features[i],\n geometry = feature.geometry,\n type = feature.type,\n min, max;\n\n min = feature.min[axis];\n max = feature.max[axis];\n\n if (min >= k1 && max <= k2) { // trivial accept\n clipped.push(feature);\n continue;\n } else if (min > k2 || max < k1) { continue; } // trivial reject\n\n var slices = type === 1 ?\n clipPoints(geometry, k1, k2, axis) :\n clipGeometry(geometry, k1, k2, axis, intersect, type === 3);\n\n if (slices.length) {\n // if a feature got clipped, it will likely get clipped on the next zoom level as well,\n // so there's no need to recalculate bboxes\n clipped.push({\n geometry: slices,\n type: type,\n tags: features[i].tags || null,\n min: feature.min,\n max: feature.max\n });\n }\n }\n\n return clipped.length ? clipped : null;\n}\n\nfunction clipPoints(geometry, k1, k2, axis) {\n var slice = [];\n\n for (var i = 0; i < geometry.length; i++) {\n var a = geometry[i],\n ak = a[axis];\n\n if (ak >= k1 && ak <= k2) { slice.push(a); }\n }\n return slice;\n}\n\nfunction clipGeometry(geometry, k1, k2, axis, intersect, closed) {\n\n var slices = [];\n\n for (var i = 0; i < geometry.length; i++) {\n\n var ak = 0,\n bk = 0,\n b = null,\n points = geometry[i],\n area = points.area,\n dist = points.dist,\n outer = points.outer,\n len = points.length,\n a, j, last;\n\n var slice = [];\n\n for (j = 0; j < len - 1; j++) {\n a = b || points[j];\n b = points[j + 1];\n ak = bk || a[axis];\n bk = b[axis];\n\n if (ak < k1) {\n\n if ((bk > k2)) { // ---|-----|-->\n slice.push(intersect(a, b, k1), intersect(a, b, k2));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk >= k1) { slice.push(intersect(a, b, k1)); } // ---|--> |\n\n } else if (ak > k2) {\n\n if ((bk < k1)) { // <--|-----|---\n slice.push(intersect(a, b, k2), intersect(a, b, k1));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk <= k2) { slice.push(intersect(a, b, k2)); } // | <--|---\n\n } else {\n\n slice.push(a);\n\n if (bk < k1) { // <--|--- |\n slice.push(intersect(a, b, k1));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n\n } else if (bk > k2) { // | ---|-->\n slice.push(intersect(a, b, k2));\n if (!closed) { slice = newSlice(slices, slice, area, dist, outer); }\n }\n // | --> |\n }\n }\n\n // add the last point\n a = points[len - 1];\n ak = a[axis];\n if (ak >= k1 && ak <= k2) { slice.push(a); }\n\n // close the polygon if its endpoints are not the same after clipping\n\n last = slice[slice.length - 1];\n if (closed && last && (slice[0][0] !== last[0] || slice[0][1] !== last[1])) { slice.push(slice[0]); }\n\n // add the final slice\n newSlice(slices, slice, area, dist, outer);\n }\n\n return slices;\n}\n\nfunction newSlice(slices, slice, area, dist, outer) {\n if (slice.length) {\n // we don't recalculate the area/length of the unclipped geometry because the case where it goes\n // below the visibility threshold as a result of clipping is rare, so we avoid doing unnecessary work\n slice.area = area;\n slice.dist = dist;\n if (outer !== undefined) { slice.outer = outer; }\n\n slices.push(slice);\n }\n return [];\n}\n\nvar clip$2 = clip_1;\n\nvar wrap_1 = wrap$1;\n\nfunction wrap$1(features, buffer, intersectX) {\n var merged = features,\n left = clip$2(features, 1, -1 - buffer, buffer, 0, intersectX, -1, 2), // left world copy\n right = clip$2(features, 1, 1 - buffer, 2 + buffer, 0, intersectX, -1, 2); // right world copy\n\n if (left || right) {\n merged = clip$2(features, 1, -buffer, 1 + buffer, 0, intersectX, -1, 2); // center world copy\n\n if (left) { merged = shiftFeatureCoords(left, 1).concat(merged); } // merge left into center\n if (right) { merged = merged.concat(shiftFeatureCoords(right, -1)); } // merge right into center\n }\n\n return merged;\n}\n\nfunction shiftFeatureCoords(features, offset) {\n var newFeatures = [];\n\n for (var i = 0; i < features.length; i++) {\n var feature = features[i],\n type = feature.type;\n\n var newGeometry;\n\n if (type === 1) {\n newGeometry = shiftCoords(feature.geometry, offset);\n } else {\n newGeometry = [];\n for (var j = 0; j < feature.geometry.length; j++) {\n newGeometry.push(shiftCoords(feature.geometry[j], offset));\n }\n }\n\n newFeatures.push({\n geometry: newGeometry,\n type: type,\n tags: feature.tags,\n min: [feature.min[0] + offset, feature.min[1]],\n max: [feature.max[0] + offset, feature.max[1]]\n });\n }\n\n return newFeatures;\n}\n\nfunction shiftCoords(points, offset) {\n var newPoints = [];\n newPoints.area = points.area;\n newPoints.dist = points.dist;\n\n for (var i = 0; i < points.length; i++) {\n newPoints.push([points[i][0] + offset, points[i][1], points[i][2]]);\n }\n return newPoints;\n}\n\nvar tile$1 = createTile$1;\n\nfunction createTile$1(features, z2, tx, ty, tolerance, noSimplify) {\n var tile = {\n features: [],\n numPoints: 0,\n numSimplified: 0,\n numFeatures: 0,\n source: null,\n x: tx,\n y: ty,\n z2: z2,\n transformed: false,\n min: [2, 1],\n max: [-1, 0]\n };\n for (var i = 0; i < features.length; i++) {\n tile.numFeatures++;\n addFeature(tile, features[i], tolerance, noSimplify);\n\n var min = features[i].min,\n max = features[i].max;\n\n if (min[0] < tile.min[0]) { tile.min[0] = min[0]; }\n if (min[1] < tile.min[1]) { tile.min[1] = min[1]; }\n if (max[0] > tile.max[0]) { tile.max[0] = max[0]; }\n if (max[1] > tile.max[1]) { tile.max[1] = max[1]; }\n }\n return tile;\n}\n\nfunction addFeature(tile, feature, tolerance, noSimplify) {\n\n var geom = feature.geometry,\n type = feature.type,\n simplified = [],\n sqTolerance = tolerance * tolerance,\n i, j, ring, p;\n\n if (type === 1) {\n for (i = 0; i < geom.length; i++) {\n simplified.push(geom[i]);\n tile.numPoints++;\n tile.numSimplified++;\n }\n\n } else {\n\n // simplify and transform projected coordinates for tile geometry\n for (i = 0; i < geom.length; i++) {\n ring = geom[i];\n\n // filter out tiny polylines & polygons\n if (!noSimplify && ((type === 2 && ring.dist < tolerance) ||\n (type === 3 && ring.area < sqTolerance))) {\n tile.numPoints += ring.length;\n continue;\n }\n\n var simplifiedRing = [];\n\n for (j = 0; j < ring.length; j++) {\n p = ring[j];\n // keep points with importance > tolerance\n if (noSimplify || p[2] > sqTolerance) {\n simplifiedRing.push(p);\n tile.numSimplified++;\n }\n tile.numPoints++;\n }\n\n if (type === 3) { rewind(simplifiedRing, ring.outer); }\n\n simplified.push(simplifiedRing);\n }\n }\n\n if (simplified.length) {\n tile.features.push({\n geometry: simplified,\n type: type,\n tags: feature.tags || null\n });\n }\n}\n\nfunction rewind(ring, clockwise) {\n var area = signedArea(ring);\n if (area < 0 === clockwise) { ring.reverse(); }\n}\n\nfunction signedArea(ring) {\n var sum = 0;\n for (var i = 0, len = ring.length, j = len - 1, p1, p2; i < len; j = i++) {\n p1 = ring[i];\n p2 = ring[j];\n sum += (p2[0] - p1[0]) * (p1[1] + p2[1]);\n }\n return sum;\n}\n\nvar index = geojsonvt;\n\nvar convert = convert_1;\nvar transform = transform$1;\nvar clip = clip_1;\nvar wrap = wrap_1;\nvar createTile = tile$1; // final simplified tile generation\n\n\nfunction geojsonvt(data, options) {\n return new GeoJSONVT(data, options);\n}\n\nfunction GeoJSONVT(data, options) {\n options = this.options = extend(Object.create(this.options), options);\n\n var debug = options.debug;\n\n if (debug) { console.time('preprocess data'); }\n\n var z2 = 1 << options.maxZoom, // 2^z\n features = convert(data, options.tolerance / (z2 * options.extent));\n\n this.tiles = {};\n this.tileCoords = [];\n\n if (debug) {\n console.timeEnd('preprocess data');\n console.log('index: maxZoom: %d, maxPoints: %d', options.indexMaxZoom, options.indexMaxPoints);\n console.time('generate tiles');\n this.stats = {};\n this.total = 0;\n }\n\n features = wrap(features, options.buffer / options.extent, intersectX);\n\n // start slicing from the top tile down\n if (features.length) { this.splitTile(features, 0, 0, 0); }\n\n if (debug) {\n if (features.length) { console.log('features: %d, points: %d', this.tiles[0].numFeatures, this.tiles[0].numPoints); }\n console.timeEnd('generate tiles');\n console.log('tiles generated:', this.total, JSON.stringify(this.stats));\n }\n}\n\nGeoJSONVT.prototype.options = {\n maxZoom: 14, // max zoom to preserve detail on\n indexMaxZoom: 5, // max zoom in the tile index\n indexMaxPoints: 100000, // max number of points per tile in the tile index\n solidChildren: false, // whether to tile solid square tiles further\n tolerance: 3, // simplification tolerance (higher means simpler)\n extent: 4096, // tile extent\n buffer: 64, // tile buffer on each side\n debug: 0 // logging level (0, 1 or 2)\n};\n\nGeoJSONVT.prototype.splitTile = function (features, z, x, y, cz, cx, cy) {\n var this$1 = this;\n\n\n var stack = [features, z, x, y],\n options = this.options,\n debug = options.debug,\n solid = null;\n\n // avoid recursion by using a processing queue\n while (stack.length) {\n y = stack.pop();\n x = stack.pop();\n z = stack.pop();\n features = stack.pop();\n\n var z2 = 1 << z,\n id = toID(z, x, y),\n tile = this$1.tiles[id],\n tileTolerance = z === options.maxZoom ? 0 : options.tolerance / (z2 * options.extent);\n\n if (!tile) {\n if (debug > 1) { console.time('creation'); }\n\n tile = this$1.tiles[id] = createTile(features, z2, x, y, tileTolerance, z === options.maxZoom);\n this$1.tileCoords.push({z: z, x: x, y: y});\n\n if (debug) {\n if (debug > 1) {\n console.log('tile z%d-%d-%d (features: %d, points: %d, simplified: %d)',\n z, x, y, tile.numFeatures, tile.numPoints, tile.numSimplified);\n console.timeEnd('creation');\n }\n var key = 'z' + z;\n this$1.stats[key] = (this$1.stats[key] || 0) + 1;\n this$1.total++;\n }\n }\n\n // save reference to original geometry in tile so that we can drill down later if we stop now\n tile.source = features;\n\n // if it's the first-pass tiling\n if (!cz) {\n // stop tiling if we reached max zoom, or if the tile is too simple\n if (z === options.indexMaxZoom || tile.numPoints <= options.indexMaxPoints) { continue; }\n\n // if a drilldown to a specific tile\n } else {\n // stop tiling if we reached base zoom or our target tile zoom\n if (z === options.maxZoom || z === cz) { continue; }\n\n // stop tiling if it's not an ancestor of the target tile\n var m = 1 << (cz - z);\n if (x !== Math.floor(cx / m) || y !== Math.floor(cy / m)) { continue; }\n }\n\n // stop tiling if the tile is solid clipped square\n if (!options.solidChildren && isClippedSquare(tile, options.extent, options.buffer)) {\n if (cz) { solid = z; } // and remember the zoom if we're drilling down\n continue;\n }\n\n // if we slice further down, no need to keep source geometry\n tile.source = null;\n\n if (debug > 1) { console.time('clipping'); }\n\n // values we'll use for clipping\n var k1 = 0.5 * options.buffer / options.extent,\n k2 = 0.5 - k1,\n k3 = 0.5 + k1,\n k4 = 1 + k1,\n tl, bl, tr, br, left, right;\n\n tl = bl = tr = br = null;\n\n left = clip(features, z2, x - k1, x + k3, 0, intersectX, tile.min[0], tile.max[0]);\n right = clip(features, z2, x + k2, x + k4, 0, intersectX, tile.min[0], tile.max[0]);\n\n if (left) {\n tl = clip(left, z2, y - k1, y + k3, 1, intersectY, tile.min[1], tile.max[1]);\n bl = clip(left, z2, y + k2, y + k4, 1, intersectY, tile.min[1], tile.max[1]);\n }\n\n if (right) {\n tr = clip(right, z2, y - k1, y + k3, 1, intersectY, tile.min[1], tile.max[1]);\n br = clip(right, z2, y + k2, y + k4, 1, intersectY, tile.min[1], tile.max[1]);\n }\n\n if (debug > 1) { console.timeEnd('clipping'); }\n\n if (tl) { stack.push(tl, z + 1, x * 2, y * 2); }\n if (bl) { stack.push(bl, z + 1, x * 2, y * 2 + 1); }\n if (tr) { stack.push(tr, z + 1, x * 2 + 1, y * 2); }\n if (br) { stack.push(br, z + 1, x * 2 + 1, y * 2 + 1); }\n }\n\n return solid;\n};\n\nGeoJSONVT.prototype.getTile = function (z, x, y) {\n var this$1 = this;\n\n var options = this.options,\n extent = options.extent,\n debug = options.debug;\n\n var z2 = 1 << z;\n x = ((x % z2) + z2) % z2; // wrap tile x coordinate\n\n var id = toID(z, x, y);\n if (this.tiles[id]) { return transform.tile(this.tiles[id], extent); }\n\n if (debug > 1) { console.log('drilling down to z%d-%d-%d', z, x, y); }\n\n var z0 = z,\n x0 = x,\n y0 = y,\n parent;\n\n while (!parent && z0 > 0) {\n z0--;\n x0 = Math.floor(x0 / 2);\n y0 = Math.floor(y0 / 2);\n parent = this$1.tiles[toID(z0, x0, y0)];\n }\n\n if (!parent || !parent.source) { return null; }\n\n // if we found a parent tile containing the original geometry, we can drill down from it\n if (debug > 1) { console.log('found parent tile z%d-%d-%d', z0, x0, y0); }\n\n // it parent tile is a solid clipped square, return it instead since it's identical\n if (isClippedSquare(parent, extent, options.buffer)) { return transform.tile(parent, extent); }\n\n if (debug > 1) { console.time('drilling down'); }\n var solid = this.splitTile(parent.source, z0, x0, y0, z, x, y);\n if (debug > 1) { console.timeEnd('drilling down'); }\n\n // one of the parent tiles was a solid clipped square\n if (solid !== null) {\n var m = 1 << (z - solid);\n id = toID(solid, Math.floor(x / m), Math.floor(y / m));\n }\n\n return this.tiles[id] ? transform.tile(this.tiles[id], extent) : null;\n};\n\nfunction toID(z, x, y) {\n return (((1 << z) * y + x) * 32) + z;\n}\n\nfunction intersectX(a, b, x) {\n return [x, (x - a[0]) * (b[1] - a[1]) / (b[0] - a[0]) + a[1], 1];\n}\nfunction intersectY(a, b, y) {\n return [(y - a[1]) * (b[0] - a[0]) / (b[1] - a[1]) + a[0], y, 1];\n}\n\nfunction extend(dest, src) {\n for (var i in src) { dest[i] = src[i]; }\n return dest;\n}\n\n// checks whether a tile is a whole-area fill after clipping; if it is, there's no sense slicing it further\nfunction isClippedSquare(tile, extent, buffer) {\n\n var features = tile.source;\n if (features.length !== 1) { return false; }\n\n var feature = features[0];\n if (feature.type !== 3 || feature.geometry.length > 1) { return false; }\n\n var len = feature.geometry[0].length;\n if (len !== 5) { return false; }\n\n for (var i = 0; i < len; i++) {\n var p = transform.point(feature.geometry[0][i], extent, tile.z2, tile.x, tile.y);\n if ((p[0] !== -buffer && p[0] !== extent + buffer) ||\n (p[1] !== -buffer && p[1] !== extent + buffer)) { return false; }\n }\n\n return true;\n}\n\nvar identity = function(x) {\n return x;\n};\n\nvar transform$3 = function(topology) {\n if ((transform = topology.transform) == null) { return identity; }\n var transform,\n x0,\n y0,\n kx = transform.scale[0],\n ky = transform.scale[1],\n dx = transform.translate[0],\n dy = transform.translate[1];\n return function(point, i) {\n if (!i) { x0 = y0 = 0; }\n point[0] = (x0 += point[0]) * kx + dx;\n point[1] = (y0 += point[1]) * ky + dy;\n return point;\n };\n};\n\nvar bbox = function(topology) {\n var bbox = topology.bbox;\n\n function bboxPoint(p0) {\n p1[0] = p0[0], p1[1] = p0[1], t(p1);\n if (p1[0] < x0) { x0 = p1[0]; }\n if (p1[0] > x1) { x1 = p1[0]; }\n if (p1[1] < y0) { y0 = p1[1]; }\n if (p1[1] > y1) { y1 = p1[1]; }\n }\n\n function bboxGeometry(o) {\n switch (o.type) {\n case \"GeometryCollection\": o.geometries.forEach(bboxGeometry); break;\n case \"Point\": bboxPoint(o.coordinates); break;\n case \"MultiPoint\": o.coordinates.forEach(bboxPoint); break;\n }\n }\n\n if (!bbox) {\n var t = transform$3(topology), p0, p1 = new Array(2), name,\n x0 = Infinity, y0 = x0, x1 = -x0, y1 = -x0;\n\n topology.arcs.forEach(function(arc) {\n var i = -1, n = arc.length;\n while (++i < n) {\n p0 = arc[i], p1[0] = p0[0], p1[1] = p0[1], t(p1, i);\n if (p1[0] < x0) { x0 = p1[0]; }\n if (p1[0] > x1) { x1 = p1[0]; }\n if (p1[1] < y0) { y0 = p1[1]; }\n if (p1[1] > y1) { y1 = p1[1]; }\n }\n });\n\n for (name in topology.objects) {\n bboxGeometry(topology.objects[name]);\n }\n\n bbox = topology.bbox = [x0, y0, x1, y1];\n }\n\n return bbox;\n};\n\nvar reverse = function(array, n) {\n var t, j = array.length, i = j - n;\n while (i < --j) { t = array[i], array[i++] = array[j], array[j] = t; }\n};\n\nvar feature = function(topology, o) {\n return o.type === \"GeometryCollection\"\n ? {type: \"FeatureCollection\", features: o.geometries.map(function(o) { return feature$1(topology, o); })}\n : feature$1(topology, o);\n};\n\nfunction feature$1(topology, o) {\n var id = o.id,\n bbox = o.bbox,\n properties = o.properties == null ? {} : o.properties,\n geometry = object(topology, o);\n return id == null && bbox == null ? {type: \"Feature\", properties: properties, geometry: geometry}\n : bbox == null ? {type: \"Feature\", id: id, properties: properties, geometry: geometry}\n : {type: \"Feature\", id: id, bbox: bbox, properties: properties, geometry: geometry};\n}\n\nfunction object(topology, o) {\n var transformPoint = transform$3(topology),\n arcs = topology.arcs;\n\n function arc(i, points) {\n if (points.length) { points.pop(); }\n for (var a = arcs[i < 0 ? ~i : i], k = 0, n = a.length; k < n; ++k) {\n points.push(transformPoint(a[k].slice(), k));\n }\n if (i < 0) { reverse(points, n); }\n }\n\n function point(p) {\n return transformPoint(p.slice());\n }\n\n function line(arcs) {\n var points = [];\n for (var i = 0, n = arcs.length; i < n; ++i) { arc(arcs[i], points); }\n if (points.length < 2) { points.push(points[0].slice()); }\n return points;\n }\n\n function ring(arcs) {\n var points = line(arcs);\n while (points.length < 4) { points.push(points[0].slice()); }\n return points;\n }\n\n function polygon(arcs) {\n return arcs.map(ring);\n }\n\n function geometry(o) {\n var type = o.type, coordinates;\n switch (type) {\n case \"GeometryCollection\": return {type: type, geometries: o.geometries.map(geometry)};\n case \"Point\": coordinates = point(o.coordinates); break;\n case \"MultiPoint\": coordinates = o.coordinates.map(point); break;\n case \"LineString\": coordinates = line(o.arcs); break;\n case \"MultiLineString\": coordinates = o.arcs.map(line); break;\n case \"Polygon\": coordinates = polygon(o.arcs); break;\n case \"MultiPolygon\": coordinates = o.arcs.map(polygon); break;\n default: return null;\n }\n return {type: type, coordinates: coordinates};\n }\n\n return geometry(o);\n}\n\nvar stitch = function(topology, arcs) {\n var stitchedArcs = {},\n fragmentByStart = {},\n fragmentByEnd = {},\n fragments = [],\n emptyIndex = -1;\n\n // Stitch empty arcs first, since they may be subsumed by other arcs.\n arcs.forEach(function(i, j) {\n var arc = topology.arcs[i < 0 ? ~i : i], t;\n if (arc.length < 3 && !arc[1][0] && !arc[1][1]) {\n t = arcs[++emptyIndex], arcs[emptyIndex] = i, arcs[j] = t;\n }\n });\n\n arcs.forEach(function(i) {\n var e = ends(i),\n start = e[0],\n end = e[1],\n f, g;\n\n if (f = fragmentByEnd[start]) {\n delete fragmentByEnd[f.end];\n f.push(i);\n f.end = end;\n if (g = fragmentByStart[end]) {\n delete fragmentByStart[g.start];\n var fg = g === f ? f : f.concat(g);\n fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.end] = fg;\n } else {\n fragmentByStart[f.start] = fragmentByEnd[f.end] = f;\n }\n } else if (f = fragmentByStart[end]) {\n delete fragmentByStart[f.start];\n f.unshift(i);\n f.start = start;\n if (g = fragmentByEnd[start]) {\n delete fragmentByEnd[g.end];\n var gf = g === f ? f : g.concat(f);\n fragmentByStart[gf.start = g.start] = fragmentByEnd[gf.end = f.end] = gf;\n } else {\n fragmentByStart[f.start] = fragmentByEnd[f.end] = f;\n }\n } else {\n f = [i];\n fragmentByStart[f.start = start] = fragmentByEnd[f.end = end] = f;\n }\n });\n\n function ends(i) {\n var arc = topology.arcs[i < 0 ? ~i : i], p0 = arc[0], p1;\n if (topology.transform) { p1 = [0, 0], arc.forEach(function(dp) { p1[0] += dp[0], p1[1] += dp[1]; }); }\n else { p1 = arc[arc.length - 1]; }\n return i < 0 ? [p1, p0] : [p0, p1];\n }\n\n function flush(fragmentByEnd, fragmentByStart) {\n for (var k in fragmentByEnd) {\n var f = fragmentByEnd[k];\n delete fragmentByStart[f.start];\n delete f.start;\n delete f.end;\n f.forEach(function(i) { stitchedArcs[i < 0 ? ~i : i] = 1; });\n fragments.push(f);\n }\n }\n\n flush(fragmentByEnd, fragmentByStart);\n flush(fragmentByStart, fragmentByEnd);\n arcs.forEach(function(i) { if (!stitchedArcs[i < 0 ? ~i : i]) { fragments.push([i]); } });\n\n return fragments;\n};\n\nfunction extractArcs(topology, object$$1, filter) {\n var arcs = [],\n geomsByArc = [],\n geom;\n\n function extract0(i) {\n var j = i < 0 ? ~i : i;\n (geomsByArc[j] || (geomsByArc[j] = [])).push({i: i, g: geom});\n }\n\n function extract1(arcs) {\n arcs.forEach(extract0);\n }\n\n function extract2(arcs) {\n arcs.forEach(extract1);\n }\n\n function extract3(arcs) {\n arcs.forEach(extract2);\n }\n\n function geometry(o) {\n switch (geom = o, o.type) {\n case \"GeometryCollection\": o.geometries.forEach(geometry); break;\n case \"LineString\": extract1(o.arcs); break;\n case \"MultiLineString\": case \"Polygon\": extract2(o.arcs); break;\n case \"MultiPolygon\": extract3(o.arcs); break;\n }\n }\n\n geometry(object$$1);\n\n geomsByArc.forEach(filter == null\n ? function(geoms) { arcs.push(geoms[0].i); }\n : function(geoms) { if (filter(geoms[0].g, geoms[geoms.length - 1].g)) { arcs.push(geoms[0].i); } });\n\n return arcs;\n}\n\nfunction planarRingArea(ring) {\n var i = -1, n = ring.length, a, b = ring[n - 1], area = 0;\n while (++i < n) { a = b, b = ring[i], area += a[0] * b[1] - a[1] * b[0]; }\n return Math.abs(area); // Note: doubled area!\n}\n\nvar bisect = function(a, x) {\n var lo = 0, hi = a.length;\n while (lo < hi) {\n var mid = lo + hi >>> 1;\n if (a[mid] < x) { lo = mid + 1; }\n else { hi = mid; }\n }\n return lo;\n};\n\nvar slicers = {};\nvar options;\n\nonmessage = function (e) {\n if (e.data[0] === 'slice') {\n // Given a blob of GeoJSON and some topojson/geojson-vt options, do the slicing.\n var geojson = e.data[1];\n options = e.data[2];\n\n if (geojson.type && geojson.type === 'Topology') {\n for (var layerName in geojson.objects) {\n slicers[layerName] = index(\n feature(geojson, geojson.objects[layerName])\n , options);\n }\n } else {\n slicers[options.vectorTileLayerName] = index(geojson, options);\n }\n\n } else if (e.data[0] === 'get') {\n // Gets the vector tile for the given coordinates, sends it back as a message\n var coords = e.data[1];\n\n var tileLayers = {};\n for (var layerName in slicers) {\n var slicedTileLayer = slicers[layerName].getTile(coords.z, coords.x, coords.y);\n\n if (slicedTileLayer) {\n var vectorTileLayer = {\n features: [],\n extent: options.extent,\n name: options.vectorTileLayerName,\n length: slicedTileLayer.features.length\n };\n\n for (var i in slicedTileLayer.features) {\n var feat = {\n geometry: slicedTileLayer.features[i].geometry,\n properties: slicedTileLayer.features[i].tags,\n type: slicedTileLayer.features[i].type // 1 = point, 2 = line, 3 = polygon\n };\n vectorTileLayer.features.push(feat);\n }\n tileLayers[layerName] = vectorTileLayer;\n }\n }\n postMessage({ layers: tileLayers, coords: coords });\n }\n};\n//# sourceMap" + "pingURL=slicerWebWorker.js.worker.map\n", "text/plain; charset=us-ascii", false); - -// The geojson/topojson is sliced into tiles via a web worker. -// This import statement depends on rollup-file-as-blob, so that the -// variable 'workerCode' is a blob URL. - -/* - * 🍂class VectorGrid.Slicer - * 🍂extends VectorGrid - * - * A `VectorGrid` for slicing up big GeoJSON or TopoJSON documents in vector - * tiles, leveraging [`geojson-vt`](https://github.com/mapbox/geojson-vt). - * - * 🍂example - * - * ``` - * var geoJsonDocument = { - * type: 'FeatureCollection', - * features: [ ... ] - * }; - * - * L.vectorGrid.slicer(geoJsonDocument, { - * vectorTileLayerStyles: { - * sliced: { ... } - * } - * }).addTo(map); - * - * ``` - * - * `VectorGrid.Slicer` can also handle [TopoJSON](https://github.com/mbostock/topojson) transparently: - * ```js - * var layer = L.vectorGrid.slicer(topojson, options); - * ``` - * - * The TopoJSON format [implicitly groups features into "objects"](https://github.com/mbostock/topojson-specification/blob/master/README.md#215-objects). - * These will be transformed into vector tile layer names when styling (the - * `vectorTileLayerName` option is ignored when using TopoJSON). - * - */ - -L.VectorGrid.Slicer = L.VectorGrid.extend({ - - options: { - // 🍂section - // Additionally to these options, `VectorGrid.Slicer` can take in any - // of the [`geojson-vt` options](https://github.com/mapbox/geojson-vt#options). - - // 🍂option vectorTileLayerName: String = 'sliced' - // Vector tiles contain a set of *data layers*, and those data layers - // contain features. Thus, the slicer creates one data layer, with - // the name given in this option. This is important for symbolizing the data. - vectorTileLayerName: 'sliced', - - extent: 4096, // Default for geojson-vt - maxZoom: 14 // Default for geojson-vt - }, - - initialize: function(geojson, options) { - L.VectorGrid.prototype.initialize.call(this, options); - - // Create a shallow copy of this.options, excluding things that might - // be functions - we only care about topojson/geojsonvt options - var options = {}; - for (var i in this.options) { - if (i !== 'rendererFactory' && - i !== 'vectorTileLayerStyles' && - typeof (this.options[i]) !== 'function' - ) { - options[i] = this.options[i]; - } - } - -// this._worker = new Worker(window.URL.createObjectURL(new Blob([workerCode]))); - this._worker = new Worker(workerCode); - - // Send initial data to worker. - this._worker.postMessage(['slice', geojson, options]); - - }, - - - _getVectorTilePromise: function(coords) { - - var _this = this; - - var p = new Promise( function waitForWorker(res) { - _this._worker.addEventListener('message', function recv(m) { - if (m.data.coords && - m.data.coords.x === coords.x && - m.data.coords.y === coords.y && - m.data.coords.z === coords.z ) { - - res(m.data); - _this._worker.removeEventListener('message', recv); - } - }); - }); - - this._worker.postMessage(['get', coords]); - - return p; - }, - -}); - - -L.vectorGrid.slicer = function (geojson, options) { - return new L.VectorGrid.Slicer(geojson, options); -}; - -L.Canvas.Tile = L.Canvas.extend({ - - initialize: function (tileCoord, tileSize, options) { - L.Canvas.prototype.initialize.call(this, options); - this._tileCoord = tileCoord; - this._size = tileSize; - - this._initContainer(); - this._container.setAttribute('width', this._size.x); - this._container.setAttribute('height', this._size.y); - this._layers = {}; - this._drawnLayers = {}; - this._drawing = true; - - if (options.interactive) { - // By default, Leaflet tiles do not have pointer events - this._container.style.pointerEvents = 'auto'; - } - }, - - getCoord: function() { - return this._tileCoord; - }, - - getContainer: function() { - return this._container; - }, - - getOffset: function() { - return this._tileCoord.scaleBy(this._size).subtract(this._map.getPixelOrigin()); - }, - - onAdd: L.Util.falseFn, - - addTo: function(map) { - this._map = map; - }, - - removeFrom: function (map) { - delete this._map; - }, - - _onClick: function (e) { - var point = this._map.mouseEventToLayerPoint(e).subtract(this.getOffset()), layer, clickedLayer; - - for (var id in this._layers) { - layer = this._layers[id]; - if (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) { - clickedLayer = layer; - } - } - if (clickedLayer) { - L.DomEvent.fakeStop(e); - this._fireEvent([clickedLayer], e); - } - }, - - _onMouseMove: function (e) { - if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; } - - var point = this._map.mouseEventToLayerPoint(e).subtract(this.getOffset()); - this._handleMouseHover(e, point); - }, - - /// TODO: Modify _initPath to include an extra parameter, a group name - /// to order symbolizers by z-index - - _updateIcon: function (layer) { - if (!this._drawing) { return; } - - var icon = layer.options.icon, - options = icon.options, - size = L.point(options.iconSize), - anchor = options.iconAnchor || - size && size.divideBy(2, true), - p = layer._point.subtract(anchor), - ctx = this._ctx, - img = layer._getImage(); - - if (img.complete) { - ctx.drawImage(img, p.x, p.y, size.x, size.y); - } else { - L.DomEvent.on(img, 'load', function() { - ctx.drawImage(img, p.x, p.y, size.x, size.y); - }); - } - - this._drawnLayers[layer._leaflet_id] = layer; - } -}); - - -L.canvas.tile = function(tileCoord, tileSize, opts){ - return new L.Canvas.Tile(tileCoord, tileSize, opts); -}; - -// Aux file to bundle everything together, including the optional dependencies -// for protobuf tiles - -}()); -//# sourceMappingURL=Leaflet.VectorGrid.bundled.js.map - diff --git a/scripts/build-vendor-bundle.js b/scripts/build-vendor-bundle.js index e33a76e..28d4658 100644 --- a/scripts/build-vendor-bundle.js +++ b/scripts/build-vendor-bundle.js @@ -45,11 +45,6 @@ const libraries = [ name: 'topbar', url: 'https://unpkg.com/topbar@3.0.0/topbar.min.js', minUrl: 'https://unpkg.com/topbar@3.0.0/topbar.min.js' - }, - { - name: 'leaflet-vectorgrid', - url: 'https://unpkg.com/leaflet.vectorgrid@1.3.0/dist/Leaflet.VectorGrid.bundled.js', - minUrl: 'https://unpkg.com/leaflet.vectorgrid@1.3.0/dist/Leaflet.VectorGrid.bundled.js' } ]; diff --git a/scripts/create-minimal-bundles.js b/scripts/create-minimal-bundles.js index 1841bef..4932ca3 100644 --- a/scripts/create-minimal-bundles.js +++ b/scripts/create-minimal-bundles.js @@ -122,12 +122,6 @@ function createOptimizedPlugins() { } }); - // Add vector grid only if needed (conditional loading) - const vectorGridPath = path.join(JS_DIR, 'leaflet-vectorgrid.js'); - if (fs.existsSync(vectorGridPath)) { - const vectorGridContent = fs.readFileSync(vectorGridPath, 'utf8'); - pluginBundle += `\n/* leaflet-vectorgrid.js - lazy loaded */\nwindow.LeafletVectorGrid = (function() {\n${vectorGridContent}\nreturn L.vectorGrid;\n})();\n`; - } fs.writeFileSync(path.join(JS_DIR, 'plugins-optimized.js'), pluginBundle); return pluginBundle.length; diff --git a/scripts/optimize-vendor-bundle.js b/scripts/optimize-vendor-bundle.js index e856787..7b11af4 100644 --- a/scripts/optimize-vendor-bundle.js +++ b/scripts/optimize-vendor-bundle.js @@ -15,7 +15,7 @@ const LEAFLET_USED_FEATURES = [ 'L.polyline', 'L.circle', 'L.circleMarker', 'L.control', 'L.DomUtil', 'L.DomEvent', // Plugins used - 'L.heatLayer', 'L.markerClusterGroup', 'L.vectorGrid' + 'L.heatLayer', 'L.markerClusterGroup' ]; const CHARTJS_USED_FEATURES = [ @@ -69,8 +69,7 @@ function createMinimalVendorBundle() { 'leaflet-heat.js', 'leaflet-markercluster.js', 'overlapping-marker-spiderfier.js', - 'topbar.js', - 'leaflet-vectorgrid.js' + 'topbar.js' ]; let optimizedBundle = ''; @@ -97,8 +96,8 @@ function createMinimalVendorBundle() { optimizedBundle += `\n/* chartjs-adapter-date-fns */\n${content}\n`; } - // Add topbar and vectorgrid - ['topbar.js', 'leaflet-vectorgrid.js'].forEach(file => { + // Add topbar + ['topbar.js'].forEach(file => { const filePath = path.join(jsDir, file); if (fs.existsSync(filePath)) { const content = fs.readFileSync(filePath, 'utf8');