cartodb-4.29/lib/assets/javascripts/cdb/examples/layer_definition.html
zhongjin a96ef233c9 cdb
2020-06-15 12:07:54 +08:00

82 lines
2.3 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<title>Image 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 {
height: 100%;
padding: 0;
margin: 0;
}
#content {
padding: 20px;
text-align: center;
}
.map {
float:left;
margin: 10px;
width: 500px;
height: 500px;
border: 1px solid #ccc;
background-color: #f8f8f8;
}
.map img { display: none; }
</style>
<script src="https://libs.cartocdn.com/cartodb.js/v3/3.15/cartodb.js"></script>
<script>
/* 1: We can create an image using a custom build layer definition: */
var layer_definition = {
user_name: "documentation",
tiler_domain: "cartodb.com",
tiler_port: "80",
tiler_protocol: "http",
layers: [{
type: "http",
options: {
urlTemplate: "https://{s}.basemaps.cartocdn.com/dark_nolabels/{z}/{x}/{y}.png",
subdomains: [ "a", "b", "c" ]
}
}, {
type: "cartodb",
options: {
sql: "SELECT * FROM nyc_wifi",
cartocss: "/** simple visualization */ #nyc_wifi{ marker-fill-opacity: 0.8; marker-line-color: #FFFFFF; marker-line-width: 1; marker-line-opacity: .8; marker-placement: point; marker-type: ellipse; marker-width: 6; marker-fill: #6ac41c; marker-allow-overlap: true; }",
cartocss_version: "2.1.1"
}
}]
};
// and now we just ask for the URL and append it to the page
cartodb.Image(layer_definition).size(500, 500).zoom(13).center([40.708517, -73.993414]).getUrl(function(error, url) {
var img = new Image();
img.onerror = function() {
console.log(error);
};
img.onload = function() {
var $map = $('<div class="map"></div>');
var $img = $('<img src="' + url + '" />');
$map.append($img);
$("#content").append($map);
$img.fadeIn(250);
};
img.src = url;
});
</script>
</head>
<body>
<div id="content"></div>
</body>
</html>