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Created August 14, 2015 13:03
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Changing CartoCSS of hovered feature
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<title>Leaflet example | CartoDB.js</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<link rel="shortcut icon" href="http://cartodb.com/assets/favicon.ico" />
<style>
html, body, #map {
height: 100%;
padding: 0;
margin: 0;
}
</style>
<link rel="stylesheet" href="http://libs.cartocdn.com/cartodb.js/v3/3.15/themes/css/cartodb.css" />
<!--[if lte IE 8]>
<link rel="stylesheet" href="http://libs.cartocdn.com/cartodb.js/v3/themes/css/cartodb.ie.css" />
<![endif]-->
</head>
<body>
<div id="map"></div>
<!-- include cartodb.js library -->
<script src="http://libs.cartocdn.com/cartodb.js/v3/3.15/cartodb.js"></script>
<script>
function main() {
var map = new L.Map('map', {
zoomControl: false,
center: [43, 0],
zoom: 3
});
var polygons = {};
L.tileLayer('http://tile.stamen.com/toner/{z}/{x}/{y}.png', {
attribution: 'Stamen'
}).addTo(map);
function geometryHover(layer) {
function featureOver(e, pos, latlng, data) {
var cartocss = "#european_countries_e{ polygon-fill: #FFFFB2; polygon-opacity: 0.8; line-color: #FFF; line-width: 1; line-opacity: 0.5; } #european_countries_e [ area <= 1638094] { polygon-fill: #B10026; } #european_countries_e [ area <= 55010] { polygon-fill: #E31A1C; } #european_countries_e [ area <= 34895] { polygon-fill: #FC4E2A; } #european_countries_e [ area <= 12890] { polygon-fill: #FD8D3C; } #european_countries_e [ area <= 10025] { polygon-fill: #FEB24C; } #european_countries_e [ area <= 9150] { polygon-fill: #FED976; } #european_countries_e [ area <= 5592] { polygon-fill: #FFFFB2; }" + "#european_countries_e [ cartodb_id = "+ data.cartodb_id +"] { line-opacity: 1; line-color: #000; polygon-fill: #cccccc; }"
layer.setCartoCSS(cartocss);
}
function featureOut() {
layer.setCartoCSS("#european_countries_e{ polygon-fill: #FFFFB2; polygon-opacity: 0.8; line-color: #FFF; line-width: 1; line-opacity: 0.5; } #european_countries_e [ area <= 1638094] { polygon-fill: #B10026; } #european_countries_e [ area <= 55010] { polygon-fill: #E31A1C; } #european_countries_e [ area <= 34895] { polygon-fill: #FC4E2A; } #european_countries_e [ area <= 12890] { polygon-fill: #FD8D3C; } #european_countries_e [ area <= 10025] { polygon-fill: #FEB24C; } #european_countries_e [ area <= 9150] { polygon-fill: #FED976; } #european_countries_e [ area <= 5592] { polygon-fill: #FFFFB2; }");
}
layer.on('featureOver', featureOver);
layer.on('featureOut', featureOut);
layer.setInteraction(true);
}
cartodb.createLayer(map, 'http://documentation.cartodb.com/api/v2/viz/2b13c956-e7c1-11e2-806b-5404a6a683d5/viz.json')
.addTo(map)
.on('done', function(layer) {
geometryHover(layer.getSubLayer(0));
}).on('error', function() {
cartodb.log.log("some error occurred");
});
}
// you could use $(window).load(main);
window.onload = main;
</script>
</body>
</html>
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