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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Leaflet TopoJSON Example</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"> | |
| <link rel="stylesheet" href="//cdn.leafletjs.com/leaflet-0.5.1/leaflet.css" /> | |
| <script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> | |
| <script src="//cdn.leafletjs.com/leaflet-0.5.1/leaflet.js"></script> | |
| <script src="http://d3js.org/topojson.v1.js"></script> | |
| <style> | |
| body { | |
| padding: 0; | |
| margin: 0; | |
| } | |
| html, body, #map { | |
| height: 100%; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <script src="some-javascripts.js"></script> | |
| </body> | |
| </html> |
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| var county_layer = L.geoJson(null, { | |
| style: { | |
| color: '#666', | |
| weight: 1, | |
| opacity: 1, | |
| fillOpacity: 0.3 | |
| } | |
| }), | |
| state_layer = L.geoJson(null, { | |
| style: { | |
| color: '#333', | |
| weight: 3, | |
| opacity: 1, | |
| fillOpacity: 0 | |
| } | |
| }), | |
| map = L.map('map'); | |
| L.tileLayer('http://{s}.tiles.mapbox.com/v3/examples.map-4l7djmvo/{z}/{x}/{y}.png', { | |
| maxZoom: 17, | |
| attribution: 'Map data © MapBox, OSM', | |
| }).addTo(map); | |
| map | |
| .addLayer(county_layer) | |
| .addLayer(state_layer) | |
| .setView([40, -100], 5); | |
| $.getJSON('us_counties.json', function (data) { | |
| var county_geojson = topojson.feature(data, data.objects.counties), | |
| state_geojson = topojson.feature(data, data.objects.states); | |
| county_layer.addData(county_geojson); | |
| state_layer.addData(state_geojson); | |
| }); |
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