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change to radar as a set of tiles for a smaller image download

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This commit is contained in:
Matt Walsh
2025-06-05 14:01:49 -05:00
parent 39e8879697
commit 70fb3b5dbe
103 changed files with 150 additions and 18 deletions
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45
server/scripts/modules/radar-utils.mjs
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@@ -77,9 +77,9 @@ const removeDopplerRadarImageNoise = (RadarContext) => {
// is this pixel the old rgb?
if ((R === 0 && G === 0 && B === 0)
|| (R === 0 && G === 236 && B === 236)
|| (R === 1 && G === 160 && B === 246)
|| (R === 0 && G === 0 && B === 246)) {
|| (R === 0 && G === 236 && B === 236)
|| (R === 1 && G === 160 && B === 246)
|| (R === 0 && G === 0 && B === 246)) {
// change to your new rgb
// Transparent
@@ -124,14 +124,14 @@ const removeDopplerRadarImageNoise = (RadarContext) => {
B = 19;
A = 255;
} else if ((R === 214 && G === 0 && B === 0)
|| (R === 255 && G === 0 && B === 0)) {
|| (R === 255 && G === 0 && B === 0)) {
// Red
R = 171;
G = 14;
B = 14;
A = 255;
} else if ((R === 192 && G === 0 && B === 0)
|| (R === 255 && G === 0 && B === 255)) {
|| (R === 255 && G === 0 && B === 255)) {
// Brown
R = 115;
G = 31;
@@ -177,9 +177,44 @@ const mergeDopplerRadarImage = (mapContext, radarContext) => {
mapContext.drawImage(radarContext.canvas, 0, 0);
};
const tileSize = { x: 510, y: 320 };
const radarFullSize = { width: 2550, height: 1600 };
const radarFinalSize = { width: 640, height: 367 };
const radarSourceSize = { width: 480, height: 276 };
const scaling = {
width: radarFinalSize.width / radarSourceSize.width,
height: radarFinalSize.height / radarSourceSize.height,
};
// convert a pixel location to a file/tile combination
const pixelToFile = (xPixel, yPixel) => {
const xTile = Math.floor(xPixel / tileSize.x);
const yTile = Math.floor(yPixel / tileSize.y);
if (xTile < 0 || xTile > 9 || yTile < 0 || yTile > 9) return false;
return `${xTile.toFixed(0).padStart(2, '0')}-${yTile.toFixed(0).padStart(2, '0')}`;
};
// convert a pixel location in the overall map to a pixel location on the tile
const modTile = (xPixel, yPixel) => {
const x = Math.round(xPixel) % tileSize.x;
const y = Math.round(yPixel) % tileSize.y;
return { x, y };
};
const mapSizeToFinalSize = (x, y) => ({
x: Math.round(x * scaling.height),
y: Math.round(y * scaling.width),
});
export {
getXYFromLatitudeLongitudeDoppler,
getXYFromLatitudeLongitudeMap,
removeDopplerRadarImageNoise,
mergeDopplerRadarImage,
pixelToFile,
modTile,
mapSizeToFinalSize,
tileSize,
radarFinalSize,
radarFullSize,
};