Graham McIntire
66639e3717
Replace circle markers with a canvas tile layer that renders smooth, flowing colored regions using bilinear interpolation between grid points. Colors interpolate between tiers for gradients. ~95k grid points at 0.125 degree resolution with wgrib2 extraction.
56 lines
1.4 KiB
Elixir
56 lines
1.4 KiB
Elixir
defmodule Microwaveprop.Propagation.GridTest do
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use ExUnit.Case, async: true
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alias Microwaveprop.Propagation.Grid
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describe "conus_points/0" do
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test "generates grid at 0.125 degree resolution" do
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points = Grid.conus_points()
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assert length(points) > 5000
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assert length(points) < 100_000
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end
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test "all points within CONUS bounds" do
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Enum.each(Grid.conus_points(), fn {lat, lon} ->
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assert lat >= 25.0 and lat <= 50.0
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assert lon >= -125.0 and lon <= -66.0
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end)
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end
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test "points are on 0.125 degree grid" do
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Enum.each(Grid.conus_points(), fn {lat, lon} ->
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assert Float.round(lat * 8, 0) == lat * 8
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assert Float.round(lon * 8, 0) == lon * 8
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end)
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end
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test "first point is at SW corner" do
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[{lat, lon} | _] = Grid.conus_points()
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assert lat == 25.0
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assert lon == -125.0
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end
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test "last point is at NE corner" do
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points = Grid.conus_points()
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{lat, lon} = List.last(points)
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assert lat == 50.0
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assert lon == -66.0
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end
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end
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describe "step/0" do
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test "returns 0.125" do
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assert Grid.step() == 0.125
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end
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end
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describe "bounds/0" do
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test "returns CONUS bounding box" do
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bounds = Grid.bounds()
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assert bounds.lat_min == 25.0
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assert bounds.lat_max == 50.0
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assert bounds.lon_min == -125.0
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assert bounds.lon_max == -66.0
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end
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end
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end
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