Dialyzer:
* Add Lidar.Tile @type, narrow several @specs to match success-typing,
prefix discarded function returns with `_ =`, fix the broken
File.stream! call in the ms-buildings worker (it was causing dialyzer
to mark every private fun unreachable), broaden Antenna.spec key
types from `float()` to `number()` to match catalog int literals.
* Add :geo, :geo_postgis, :db_connection to plt_add_apps so the dep
PLT actually contains the modules we use.
* Result: 0 unsuppressed dialyzer warnings (was 50+ in project code).
Tree canopy:
* Replace the dead landfire.gov URL with the ETH Zurich Global
Canopy Height 10 m product. ETH publishes proper COGs with
overviews on libdrive.ethz.ch — confirmed working with
/vsicurl/ byte-range reads. The module now picks the 3°×3° tile
containing the bbox centroid, with both a `:metres` decoder
(ETH Byte raster, NoData=255) and a `:landfire_evh` decoder for
operators self-hosting LANDFIRE EVH COGs.
* Re-enable canopy by default now that there's a working source.
Tests (+105 tests, 0 failures):
* CoverageLive Index/Show/Form/Map — empty/loaded/auth states,
LiveView event handlers, formatters.
* Coverages.Building changeset + helpers.
* Coverages.TreeCanopy provider tile-URL builder and decoders.
* Workers.MsBuildingsImportWorker (full import flow incl. blank
lines, MultiPolygon, idempotency, hash fallback) — also fixed
the partial-index ON CONFLICT bug that prevented imports from
ever working: the unique index has WHERE ms_footprint_id IS
NOT NULL, so the worker now uses an :unsafe_fragment conflict
target that includes the predicate.
* GraphQLDocsController smoke test (was 0%).
Coverage rose from 73.19% → 74% with the major project modules I
touched all moved from 0% / <50% to >75%.
Closes the cnHeat-parity gap on modes and clutter:
Backend
- Towerops.Coverages.Buildings.for_bbox/1 — PostGIS ST_Intersects
query that returns each building polygon as a compact
%{height_m, coords} map ready for in-memory point-in-polygon
testing, so the per-pixel hot loop never round-trips to
Postgres.
- Towerops.Coverages.Profile.sample/5 — accepts an optional
:clutter list and adds the building rooftop height to terrain
whenever a sample point falls inside a polygon. Pure ray-cast
PIP for portability.
- Towerops.Workers.CoverageWorker — fetches buildings once per
job and computes BOTH LOS and NLOS variants per SM-height
tier (12 PNGs total). LOS passes clutter: [] (height-above-
clutter view), NLOS passes the prefetched list (height-above-
ground view with rooftop diffraction). Pixel-loop signature
bundled into a ctx map to keep the function arity within
Credo's max-8 limit.
- Towerops.Workers.MsBuildingsImportWorker — streams Microsoft
GlobalMLBuildingFootprints GeoJSONSeq exports line-by-line,
upserts into coverage_buildings in 500-row batches via
insert_all + ON CONFLICT (source, ms_footprint_id). Handles
Polygon and MultiPolygon geometries; stable-hashes the bbox
when an explicit feature id is missing so re-imports are
idempotent. Public import_file/2 lets ops drive a state at
a time from IEx.
- Schema: nlos_tiers JSONB column on coverages, status_changeset
whitelist, payload exposed via list_ready_for_organization.
Frontend
- LOS / NLOS toggle pills above the height slider (left panel).
Selecting NLOS swaps each L.imageOverlay's URL via setUrl to
the matching nlos_tiers PNG, drops the cached pixel data, and
re-decodes for the RSSI filter; falls back to the other
mode's tiers when one is empty so older coverages still
render. coverage_hooks chunk: 22 KB → 25 KB.
Vertical 'Height above clutter' slider on the left of the map now
matches cnHeat's experience: pick an SM install height, the heatmap
re-renders to show only the coverage achievable from that height.
Backend
- New JSONB height_tiers column on coverages keyed by string metres
→ relative PNG path.
- CoverageWorker runs compute_pixels once per tier in
[1.83, 3.05, 4.57, 6.10, 9.14, 12.19] m (~6/10/15/20/30/40 ft)
by varying receiver_height_m on a copied struct. Each tier
writes its own raster + PNG via Raster.write/4 with a per-height
filename suffix; the default 3.05 m tier also populates the
legacy raster_path / png_path so existing show pages keep
working.
Frontend
- Vertical range slider (writing-mode: vertical-lr) anchored
centre-left. Step picks one of HEIGHT_TIERS_FT; label updates
to '6 ft'..'40 ft'.
- pngForCoverage/2 picks the closest available tier from the
payload's height_tiers map, falling back to the original png
for coverages not yet recomputed.
- On slider change the JS swaps each L.imageOverlay's URL via
setUrl, drops the cached pixel data, and re-decodes so the RSSI
filter still applies. coverage_hooks chunk: 20 KB → 22 KB.
- /coverage now renders a full-bleed Leaflet map of every ready
coverage in the org as one composite heatmap; the prior table view
moves to /coverage/list.
- Top-right tower toggle list with Show All / Hide All. Disabled
towers grey out and their overlay/marker drop from the map.
- Bottom-center opacity slider controls all overlays in unison; the
cnHeat dBm legend renders next to it.
- Top-left base-layer toggle (OSM streets / Esri satellite) and a
Nominatim address search bar that drops a marker.
- Click anywhere on the map → Distance Tool side panel with each
tower sorted by distance and the predicted RSSI at that point
(read from each coverage's GeoTIFF via gdallocationinfo). ft/m
unit toggle, NA for out-of-bbox, color-coded by signal quality.
- Backend additions: Coverages.list_ready_for_organization/1,
Coverages.query_point/3, Raster.query_rssi/3 (gdallocationinfo
wrapper with bbox guard, NoData sentinel handling).
- New JS hook MultiCoverageMap manages the layer set, toolbar,
search, opacity, click-to-probe, and live updates via PubSub
(coverage:enabled-changed and coverage:list-changed).
