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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src='http://api.tiles.mapbox.com/mapbox.js/v1.0.0/mapbox.js'></script> | |
| <link href='http://api.tiles.mapbox.com/mapbox.js/v1.0.0/mapbox.css' rel='stylesheet' /> | |
| <!--[if lte IE 8]> | |
| <link href='http://api.tiles.mapbox.com/mapbox.js/v1.0.0/mapbox.ie.css' rel='stylesheet' > | |
| <![endif]--> | |
| <style> | |
| body { margin:0; padding:0; } | |
| #map { position:absolute; top:0; bottom:0; width:100%; } | |
| </style> | |
| </head> | |
| <body> | |
| <style> | |
| .map-legend i { | |
| width: 18px; | |
| height: 18px; | |
| float: left; | |
| margin-right: 8px; | |
| opacity: 0.7; | |
| } | |
| .leaflet-popup-close-button { | |
| display: none; | |
| } | |
| .leaflet-popup-content-wrapper { | |
| pointer-events: none; | |
| } | |
| </style> | |
| <div id='map'></div> | |
| <script type="text/javascript" src="http://leafletjs.com/examples/us-states.js"></script> | |
| <script type='text/javascript'> | |
| // Based on the Leaflet example from http://leafletjs.com/examples/choropleth.html | |
| var map = L.mapbox.map('map', 'examples.map-vyofok3q').setView([37.8, -96], 4); | |
| var legend = L.mapbox.legendControl().addLegend(getLegendHTML()).addTo(map); | |
| var popup = new L.Popup({ autoPan: false }); | |
| // statesData comes from the 'us-states.js' script included above | |
| var statesLayer = L.geoJson(statesData, { | |
| style: getStyle, | |
| onEachFeature: onEachFeature | |
| }).addTo(map); | |
| function getStyle(feature) { | |
| return { | |
| weight: 2, | |
| opacity: 0.1, | |
| color: 'black', | |
| fillOpacity: 0.7, | |
| fillColor: getColor(feature.properties.density) | |
| }; | |
| } | |
| // get color depending on population density value | |
| function getColor(d) { | |
| return d > 1000 ? '#8c2d04' : | |
| d > 500 ? '#cc4c02' : | |
| d > 200 ? '#ec7014' : | |
| d > 100 ? '#fe9929' : | |
| d > 50 ? '#fec44f' : | |
| d > 20 ? '#fee391' : | |
| d > 10 ? '#fff7bc' : | |
| '#ffffe5'; | |
| } | |
| function onEachFeature(feature, layer) { | |
| layer.on({ | |
| mousemove: mousemove, | |
| mouseout: mouseout, | |
| click: zoomToFeature | |
| }); | |
| } | |
| var closeTooltip; | |
| function mousemove(e) { | |
| var layer = e.target; | |
| popup.setLatLng(e.latlng); | |
| popup.setContent('<h2>' + layer.feature.properties.name + '</h2>' + | |
| layer.feature.properties.density + ' people per square mile'); | |
| if (!popup._map) popup.openOn(map); | |
| window.clearTimeout(closeTooltip); | |
| // highlight feature | |
| layer.setStyle({ | |
| weight: 3, | |
| opacity: 0.3, | |
| fillOpacity: 0.9 | |
| }); | |
| if (!L.Browser.ie && !L.Browser.opera) { | |
| layer.bringToFront(); | |
| } | |
| } | |
| function mouseout(e) { | |
| statesLayer.resetStyle(e.target); | |
| closeTooltip = window.setTimeout(function() { | |
| map.closePopup(); | |
| }, 100); | |
| } | |
| function zoomToFeature(e) { | |
| map.fitBounds(e.target.getBounds()); | |
| } | |
| function getLegendHTML() { | |
| var grades = [0, 10, 20, 50, 100, 200, 500, 1000], | |
| labels = [], | |
| from, to; | |
| for (var i = 0; i < grades.length; i++) { | |
| from = grades[i]; | |
| to = grades[i + 1]; | |
| labels.push( | |
| '<i style="background:' + getColor(from + 1) + '"></i> ' + | |
| from + (to ? '–' + to : '+')); | |
| } | |
| return '<span>People per square mile</span><br>' + labels.join('<br>'); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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