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Swap icon image on hover
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset='utf-8' /> | |
| <title>Swap icon-image on hover</title> | |
| <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' /> | |
| <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.49.0/mapbox-gl.js'></script> | |
| <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.49.0/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> | |
| <div class='filter-ctrl'> | |
| <input id='filter-input' type='text' name='filter' placeholder='Filter by name' /> | |
| </div> | |
| <script> | |
| mapboxgl.accessToken = 'pk.eyJ1IjoibWFsLXdvb2QiLCJhIjoiY2oyZ2t2em50MDAyMzJ3cnltMDFhb2NzdiJ9.X-D4Wvo5E5QxeP7K_I3O8w'; | |
| var places = { | |
| "type": "FeatureCollection", | |
| "features": [{ | |
| "type": "Feature", | |
| "properties": { | |
| "number": "one" | |
| }, | |
| "geometry": { | |
| "type": "Point", | |
| "coordinates": [-77.038659, 38.931567] | |
| } | |
| }, { | |
| "type": "Feature", | |
| "properties": { | |
| "number": "two" | |
| }, | |
| "geometry": { | |
| "type": "Point", | |
| "coordinates": [-77.003168, 38.894651] | |
| } | |
| }, { | |
| "type": "Feature", | |
| "properties": { | |
| "number": "three" | |
| }, | |
| "geometry": { | |
| "type": "Point", | |
| "coordinates": [-77.090372, 38.881189] | |
| } | |
| }, { | |
| "type": "Feature", | |
| "properties": { | |
| "number": "four" | |
| }, | |
| "geometry": { | |
| "type": "Point", | |
| "coordinates": [-77.052477, 38.943951] | |
| } | |
| }, { | |
| "type": "Feature", | |
| "properties": { | |
| "number": "five" | |
| }, | |
| "geometry": { | |
| "type": "Point", | |
| "coordinates": [-77.031706, 38.914581] | |
| } | |
| }, { | |
| "type": "Feature", | |
| "properties": { | |
| "number": "six" | |
| }, | |
| "geometry": { | |
| "type": "Point", | |
| "coordinates": [-77.020945, 38.878241] | |
| } | |
| }, { | |
| "type": "Feature", | |
| "properties": { | |
| "number": "seven" | |
| }, | |
| "geometry": { | |
| "type": "Point", | |
| "coordinates": [-77.007481, 38.876516] | |
| } | |
| }] | |
| }; | |
| var map = new mapboxgl.Map({ | |
| container: 'map', | |
| style: 'mapbox://styles/mal-wood/cjm6pndwdd5dp2rn6alme8vmj', | |
| center: [-77.04, 38.907], | |
| zoom: 11.15 | |
| }); | |
| map.on('load', function() { | |
| // Add a GeoJSON source containing place coordinates and information. | |
| map.addSource('places', { | |
| "type": "geojson", | |
| "data": places | |
| }); | |
| map.addLayer({ | |
| "id": "airplanes", | |
| "type": "symbol", | |
| "source": "places", | |
| "layout": { | |
| "icon-image": "airport-15", | |
| "icon-allow-overlap": true, | |
| "icon-size": 2 | |
| }, | |
| "paint": {} | |
| }); | |
| map.addLayer({ | |
| "id": "airplanes-hover", | |
| "type": "symbol", | |
| "filter": ["==", "number", ""], | |
| "source": "places", | |
| "layout": { | |
| "icon-image": "airport-16", | |
| "icon-allow-overlap": true, | |
| "icon-size": 2 | |
| }, | |
| "paint": {} | |
| }); | |
| map.on('mouseenter', 'airplanes', function(e){ | |
| console.log(e.features) | |
| map.setFilter('airplanes-hover', ['==', 'number', e.features[0].properties.number]) | |
| }); | |
| map.on('mouseleave', 'airplanes', function(e){ | |
| map.setFilter('airplanes-hover', ['==', 'number', '']) | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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