diff options
Diffstat (limited to 'modern/src/mapManager.js')
| -rw-r--r-- | modern/src/mapManager.js | 97 |
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; + } + }); }); }); |