109 lines
3.2 KiB
HTML
109 lines
3.2 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<title>Leaflet example | CartoDB.js</title>
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<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
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<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
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<link rel="shortcut icon" href="http://cartodb.com/assets/favicon.ico" />
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<style>
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html, body, #map {
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height: 100%;
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padding: 0;
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margin: 0;
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}
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</style>
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<link rel="stylesheet" href="https://libs.cartocdn.com/cartodb.js/v3/3.15/themes/css/cartodb.css" />
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</head>
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<body>
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<div id="map"></div>
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<!-- include cartodb.js library -->
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<script src="https://libs.cartocdn.com/cartodb.js/v3/3.15/cartodb.js"></script>
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<script>
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function main() {
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var map = new L.Map('map', {
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zoomControl: false,
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center: [43, 0],
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zoom: 3
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});
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var polygons = {};
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L.tileLayer('http://tile.stamen.com/toner/{z}/{x}/{y}.png', {
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attribution: 'Stamen'
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}).addTo(map);
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function geometryHover(username, map, layer, options) {
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options = options || {}
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var HIGHLIGHT_STYLE = {
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weight: 3,
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color: '#FFFFFF',
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opacity: 1,
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fillColor: '#FFFFFF',
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fillOpacity: 0.3
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};
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style = options.style || HIGHLIGHT_STYLE;
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var polygonsHighlighted = [];
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// fetch the geometry
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var sql = new cartodb.SQL({ user: username, format: 'geojson' });
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sql.execute("select cartodb_id, ST_Simplify(the_geom, 0.1) as the_geom from (" + layer.getQuery() + ") as _wrap").done(function(geojson) {
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var features = geojson.features;
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for(var i = 0; i < features.length; ++i) {
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var f = geojson.features[i];
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var key = f.properties.cartodb_id
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// generate geometry
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var geo = L.GeoJSON.geometryToLayer(features[i].geometry);
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geo.setStyle(style);
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// add to polygons
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polygons[key] = polygons[key] || [];
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polygons[key].push(geo);
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}
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});
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function featureOver(e, latlng, pos, data) {
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featureOut();
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var pol = polygons[data.cartodb_id] || [];
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for(var i = 0; i < pol.length; ++i) {
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map.addLayer(pol[i]);
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polygonsHighlighted.push(pol[i]);
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}
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}
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function featureOut() {
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var pol = polygonsHighlighted;
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for(var i = 0; i < pol.length; ++i) {
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map.removeLayer(pol[i]);
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}
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polygonsHighlighted = [];
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}
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layer.on('featureOver', featureOver);
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layer.on('featureOut', featureOut);
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layer.setInteraction(true);
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}
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cartodb.createLayer(map, 'http://documentation.cartodb.com/api/v2/viz/2b13c956-e7c1-11e2-806b-5404a6a683d5/viz.json')
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.addTo(map)
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.on('done', function(layer) {
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geometryHover('documentation', map, layer.getSubLayer(0));
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}).on('error', function() {
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cartodb.log.log("some error occurred");
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});
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}
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// you could use $(window).load(main);
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window.onload = main;
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</script>
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</body>
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</html>
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