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-rw-r--r--modern/src/mapManager.js97
1 files changed, 54 insertions, 43 deletions
diff --git a/modern/src/mapManager.js b/modern/src/mapManager.js
index a16fc5f7..9c2915b3 100644
--- a/modern/src/mapManager.js
+++ b/modern/src/mapManager.js
@@ -12,26 +12,34 @@ const registerListener = listener => {
}
};
-const loadImage = (key, url) => {
+const loadImage = (url) => {
return new Promise(imageLoaded => {
const image = new Image();
- image.onload = () => {
- const canvas = document.createElement('canvas');
- canvas.width = image.width * window.devicePixelRatio;
- canvas.height = image.height * window.devicePixelRatio;
- canvas.style.width = `${image.width}px`;
- canvas.style.height = `${image.height}px`;
- const context = canvas.getContext('2d');
- context.drawImage(image, 0, 0, canvas.width, canvas.height);
- map.addImage(key, context.getImageData(0, 0, canvas.width, canvas.height), {
- pixelRatio: window.devicePixelRatio
- });
- imageLoaded()
- }
+ image.onload = () => imageLoaded(image);
image.src = url;
});
};
+const loadIcon = (key, background, url) => {
+ return loadImage(url).then((image) => {
+ const canvas = document.createElement('canvas');
+ canvas.width = background.width * window.devicePixelRatio;
+ canvas.height = background.height * window.devicePixelRatio;
+ canvas.style.width = `${background.width}px`;
+ canvas.style.height = `${background.height}px`;
+ const context = canvas.getContext('2d');
+ context.drawImage(background, 0, 0, canvas.width, canvas.height);
+
+ const imageWidth = image.width * window.devicePixelRatio;
+ const imageHeight = image.height * window.devicePixelRatio;
+ context.drawImage(image, (canvas.width - imageWidth) / 2, (canvas.height - imageHeight) / 2, imageWidth, imageHeight);
+
+ map.addImage(key, context.getImageData(0, 0, canvas.width, canvas.height), {
+ pixelRatio: window.devicePixelRatio
+ });
+ });
+};
+
const addLayer = (id, source, icon, text) => {
const layer = {
'id': id,
@@ -46,6 +54,7 @@ const addLayer = (id, source, icon, text) => {
layer.layout = {
...layer.layout,
'text-field': text,
+ 'text-allow-overlap': true,
'text-anchor': 'bottom',
'text-offset': [0, -2],
'text-font': ['Roboto Regular'],
@@ -97,30 +106,30 @@ element.style.height = '100%';
const map = new mapboxgl.Map({
container: element,
style: {
- 'version': 8,
- 'sources': {
+ 'version': 8,
+ 'sources': {
'raster-tiles': {
- 'type': 'raster',
- 'tiles': [
- 'https://a.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
- 'https://b.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
- 'https://c.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
- 'https://d.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png'
- ],
- 'tileSize': 256,
- 'attribution': '© <a target="_top" rel="noopener" href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, © <a target="_top" rel="noopener" href="https://carto.com/attribution">CARTO</a>'
+ 'type': 'raster',
+ 'tiles': [
+ 'https://a.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
+ 'https://b.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
+ 'https://c.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
+ 'https://d.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png'
+ ],
+ 'tileSize': 256,
+ 'attribution': '© <a target="_top" rel="noopener" href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, © <a target="_top" rel="noopener" href="https://carto.com/attribution">CARTO</a>'
}
- },
- 'glyphs': 'https://cdn.traccar.com/map/fonts/{fontstack}/{range}.pbf',
- 'layers': [
+ },
+ 'glyphs': 'https://cdn.traccar.com/map/fonts/{fontstack}/{range}.pbf',
+ 'layers': [
{
- 'id': 'simple-tiles',
- 'type': 'raster',
- 'source': 'raster-tiles',
- 'minzoom': 0,
- 'maxzoom': 22
+ 'id': 'simple-tiles',
+ 'type': 'raster',
+ 'source': 'raster-tiles',
+ 'minzoom': 0,
+ 'maxzoom': 22
}
- ]
+ ]
},
center: [0, 0],
zoom: 1
@@ -129,15 +138,17 @@ const map = new mapboxgl.Map({
map.addControl(new mapboxgl.NavigationControl());
map.on('load', () => {
- Promise.all([
- loadImage('background', 'images/background.svg'),
- loadImage('icon-marker', 'images/icon/marker.svg')
- ]).then(() => {
- ready = true;
- if (registeredListener) {
- registeredListener();
- registeredListener = null;
- }
+
+ loadImage('images/background.svg').then((background) => {
+ Promise.all([
+ loadIcon('icon-marker', background, 'images/icon/marker.svg')
+ ]).then(() => {
+ ready = true;
+ if (registeredListener) {
+ registeredListener();
+ registeredListener = null;
+ }
+ });
});
});