cartodb/lib/assets/javascripts/cdb/examples/leaflet_vector.html
zhongjin a96ef233c9 cdb
2020-06-15 12:07:54 +08:00

58 lines
1.7 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<title>Leaflet vector 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://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css" />
</head>
<body>
<div id="map"></div>
<!-- include cartodb.js library -->
<script src="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js"></script>
<script src="https://libs.cartocdn.com/cartodb.js/v3/3.15/cartodb.core.js"></script>
<script>
function main() {
var map = L.map('map', {
zoomControl: false,
center: [43, 0],
zoom: 3
})
var sql = new cartodb.SQL({ user: 'examples', format: 'geojson' });
L.tileLayer('http://tile.stamen.com/toner/{z}/{x}/{y}.png', {
attribution: 'Stamen'
}).addTo(map);
// create the layer and add to the map, then will be filled with data
var countriesLayer = L.geoJson().addTo(map);
//sql.execute("select * from european_countries_e").done(function(geojson) {
//sql.execute("select * from european_countries_e where area::float > {{area}}", { area: 10000 }).done(function(geojson) {
sql.execute("select ST_Simplify(the_geom, 2) as the_geom from european_countries_e").done(function(geojson) {
countriesLayer.addData(geojson);
});
}
window.onload = main;
</script>
</body>
</html>