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extended forecast silent refresh

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This commit is contained in:
Matt Walsh
2025-04-02 20:58:53 -05:00
parent 0baa31a92c
commit f7a15a93c6
4 changed files with 26 additions and 26 deletions
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30
server/scripts/modules/radar.mjs
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@@ -42,19 +42,17 @@ class Radar extends WeatherDisplay {
];
}
async getData(_weatherParameters, refresh) {
if (!super.getData(_weatherParameters, refresh)) return;
const weatherParameters = _weatherParameters ?? this.weatherParameters;
async getData(weatherParameters, refresh) {
if (!super.getData(weatherParameters, refresh)) return;
// ALASKA AND HAWAII AREN'T SUPPORTED!
if (weatherParameters.state === 'AK' || weatherParameters.state === 'HI') {
if (this.weatherParameters.state === 'AK' || this.weatherParameters.state === 'HI') {
this.setStatus(STATUS.noData);
return;
}
// get the base map
let src = 'images/4000RadarMap2.jpg';
if (weatherParameters.State === 'HI') src = 'images/HawaiiRadarMap2.png';
const src = 'images/4000RadarMap2.jpg';
this.baseMap = await loadImg(src);
const baseUrl = 'https://mesonet.agron.iastate.edu/archive/data/';
@@ -110,19 +108,12 @@ class Radar extends WeatherDisplay {
const height = 1600;
offsetX *= 2;
offsetY *= 2;
const sourceXY = utils.getXYFromLatitudeLongitudeMap(weatherParameters, offsetX, offsetY);
// create working context for manipulation
const workingCanvas = document.createElement('canvas');
workingCanvas.width = width;
workingCanvas.height = height;
const workingContext = workingCanvas.getContext('2d');
workingContext.imageSmoothingEnabled = false;
const sourceXY = utils.getXYFromLatitudeLongitudeMap(this.weatherParameters, offsetX, offsetY);
// calculate radar offsets
const radarOffsetX = 120;
const radarOffsetY = 70;
const radarSourceXY = utils.getXYFromLatitudeLongitudeDoppler(weatherParameters, offsetX, offsetY);
const radarSourceXY = utils.getXYFromLatitudeLongitudeDoppler(this.weatherParameters, offsetX, offsetY);
const radarSourceX = radarSourceXY.x / 2;
const radarSourceY = radarSourceXY.y / 2;
@@ -135,6 +126,13 @@ class Radar extends WeatherDisplay {
const context = canvas.getContext('2d');
context.imageSmoothingEnabled = false;
// create working context for manipulation
const workingCanvas = document.createElement('canvas');
workingCanvas.width = width;
workingCanvas.height = height;
const workingContext = workingCanvas.getContext('2d');
workingContext.imageSmoothingEnabled = false;
// get the image
const response = await fetch(rewriteUrl(url));
@@ -170,7 +168,7 @@ class Radar extends WeatherDisplay {
workingContext.drawImage(imgBlob, 0, 0, width, 1600);
// get the base map
context.drawImage(await this.baseMap, sourceXY.x, sourceXY.y, offsetX * 2, offsetY * 2, 0, 0, 640, 367);
context.drawImage(this.baseMap, sourceXY.x, sourceXY.y, offsetX * 2, offsetY * 2, 0, 0, 640, 367);
// crop the radar image
const cropCanvas = document.createElement('canvas');