Created
July 14, 2016 20:20
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset='utf-8' /> | |
| <title></title> | |
| <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' /> | |
| <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.21.0/mapbox-gl.js'></script> | |
| <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.21.0/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.eyJ1IjoidHJpc3RlbiIsImEiOiJiUzBYOEJzIn0.VyXs9qNWgTfABLzSI3YcrQ'; | |
| var map = new mapboxgl.Map({ | |
| container: 'map', | |
| style: 'mapbox://styles/mapbox/streets-v9', | |
| center: [-100.486052, 37.830348], | |
| zoom: 2 | |
| }); | |
| var geojson = { | |
| } | |
| map.on('load', function () { | |
| map.addSource("states", { | |
| "type": "geojson", | |
| "data": "https://d2ad6b4ur7yvpq.cloudfront.net/naturalearth-3.3.0/ne_110m_admin_1_states_provinces.geojson" | |
| }); | |
| // Hovered areas receive an outline state | |
| var source = new mapboxgl.GeoJSONSource({ | |
| data: { | |
| type: 'FeatureCollection', | |
| features: [] | |
| } | |
| }); | |
| map.addSource('polygon-hover', source); | |
| map.addLayer({ | |
| "id": "state-fills", | |
| "type": "fill", | |
| "source": "states", | |
| "layout": {}, | |
| "paint": { | |
| "fill-color": "#627BC1", | |
| "fill-opacity": 0.5 | |
| } | |
| }); | |
| map.addLayer({ | |
| "id": "state-borders", | |
| "type": "line", | |
| "source": "states", | |
| "layout": {}, | |
| "paint": { | |
| "line-color": "#627BC1", | |
| "line-width": 2 | |
| } | |
| }); | |
| map.addLayer({ | |
| 'id': 'polygon-hover', | |
| 'source': 'polygon-hover', | |
| 'type': 'line', | |
| 'paint': { | |
| 'line-color': 'rgba(0,0,0,0.5)', | |
| 'line-width': 1 | |
| } | |
| }); | |
| // When the user moves their mouse over the page, we look for features | |
| // at the mouse position (e.point) and within the states layer (states-fill). | |
| // If a feature is found, then we'll update the filter in the route-hover | |
| // layer to only show that state, thus making a hover effect. | |
| map.on("mousemove", function(e) { | |
| var features = map.queryRenderedFeatures(e.point, { layers: ["state-fills"] }); | |
| map.getCanvas().style.cursor = (features.length) ? 'pointer' : ''; | |
| if (features.length) { | |
| source.setData({type: 'FeatureCollection', features: [features[0]]}); | |
| } else { | |
| source.setData({type: 'FeatureCollection', features: []}); | |
| } | |
| }); | |
| // Reset the route-hover layer's filter when the mouse leaves the map | |
| map.on("mouseout", function() { | |
| map.setFilter("route-hover", ["==", "name", ""]); | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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