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Use expressions for icon-size and icon-color (SDFs)
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset='utf-8' /> | |
| <title>Display a map</title> | |
| <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' /> | |
| <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.47.0/mapbox-gl.js'></script> | |
| <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.47.0/mapbox-gl.css' rel='stylesheet' /> | |
| <style> | |
| body { margin:0; padding:0; } | |
| #map { position:absolute; top:0; bottom:0; width:100%; } | |
| </style> | |
| </head> | |
| <body> | |
| <div id='map'></div> | |
| <script> | |
| mapboxgl.accessToken = 'pk.eyJ1IjoibWFsLXdvb2QiLCJhIjoiY2oyZ2t2em50MDAyMzJ3cnltMDFhb2NzdiJ9.X-D4Wvo5E5QxeP7K_I3O8w'; | |
| var map = new mapboxgl.Map({ | |
| container: 'map', // container id | |
| style: 'mapbox://styles/mal-wood/cjkc0b5nh3br32rktj680mixa', // stylesheet location | |
| center: [-70.251397, 43.655894], // starting position [lng, lat] | |
| zoom: 15.3 // starting zoom | |
| }); | |
| map.on('load', function () { | |
| map.loadImage('https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/FireIcon.svg/313px-FireIcon.svg.png', function(error, image) { | |
| if (error) throw error; | |
| map.addImage('fire', image, {sdf: true}); | |
| }); | |
| map.loadImage('http://cdn.onlinewebfonts.com/svg/img_146938.png', function(error, image) { | |
| if (error) throw error; | |
| map.addImage('child', image, {sdf: true}); | |
| }); | |
| map.loadImage('https://png.icons8.com/metro/1600/car.png', function(error, image) { | |
| if (error) throw error; | |
| map.addImage('car', image, {sdf: true}); | |
| }); | |
| map.loadImage('http://cdn.onlinewebfonts.com/svg/img_550705.png', function(error, image) { | |
| if (error) throw error; | |
| map.addImage('robber', image, {sdf: true}); | |
| }); | |
| map.loadImage('https://png.icons8.com/metro/1600/home.png', function(error, image) { | |
| if (error) throw error; | |
| map.addImage('house', image, {sdf: true}); | |
| }); | |
| map.addLayer({ | |
| "id": "crime-images", | |
| "type": "symbol", | |
| "source": { | |
| type: 'vector', | |
| url: 'mapbox://mal-wood.cjkczcuuj00mqx0mr0tmgyilg-945mu' | |
| }, | |
| "source-layer": "crime-demo", | |
| "layout": { | |
| "icon-image": [ | |
| "match", | |
| ["string", ["get", "crime-type"]], | |
| "arson", | |
| "fire", | |
| "kidnapping", | |
| "child", | |
| "home-invasion", | |
| "house", | |
| "robbery", | |
| "robber", | |
| "assault", | |
| "car", | |
| "robber" | |
| ], | |
| "icon-size": .12, | |
| //if you used icons that were the same size, you could use an expression here like ["*", .25, ["get", "police-units"] | |
| }, | |
| "paint": { | |
| "icon-color": [ | |
| "match", | |
| ["string", ["get", "crime-type"]], | |
| "arson", | |
| "#ff0000", | |
| "kidnapping", | |
| "#228B22", | |
| "home-invasion", | |
| "#008B8B", | |
| "robbery", | |
| "#BDB76B", | |
| "assault", | |
| "#FF4500", | |
| "#FF4500" | |
| ] | |
| } | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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