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<!DOCTYPE html>
<html>
<title>getting map and layer data</title>
<link rel="stylesheet" type="text/css" href="examples.css"/>
<script type="text/javascript" src="http://api.giscloud.com/1/api.js"></script>
<script type="text/javascript" src="examples.js"></script>
<script type="text/javascript">
// expose jQuery
$ = giscloud.exposeJQuery();
var maps, layers;
/*
* getMapsData()
*
* Retrieves a list of maps from GIS Cloud.
*
*/
function getMapsData() {
// get public maps
giscloud.maps.list(function(mapdata) {
var i, k, map;
// mapdata contains an array of giscloud.Map objects
for (i = 0, k = mapdata.length; i < k; i++) {
map = mapdata[i];
// show map data on the page
showMapData(map.id, map.name);
}
});
}
/*
* getLayersData(mapId)
*
* Retrieves layers data from a map with id mapId.
*
*/
function getLayersData(mapId) {
// get layers data
giscloud.layers.byMapId(mapId, function(layerdata) {
var i, k, layer;
// layerdata contains an array of giscloud.Layer objects
for (i = 0, k = layerdata.length; i < k; i++) {
layer = layerdata[i];
// show map data on the page
showLayerData(mapId, layer.id, layer.name, layer.type);
}
});
}
/*
* showMapData(mapId, name)
*
* Adds an unordered list item with map id and name
*
*/
function showMapData(mapId, name) {
var li = $("<li/>", { id: "map_" + mapId });
li.append(name + " (id: " + mapId + ")<br/>");
li.append($("<a/>", {
href: "#",
click: function(evt) {
getLayersData(mapId);
evt.preventDefault();
}
}).append("Get layers"));
li.append("<ul/>");
li.appendTo("#list");
}
/*
* showLayerData(mapId, layerId, name, type)
*
* Adds a list item with layer id, name and type
*
*/
function showLayerData(mapId, layerId, name, type) {
// remove link
$("#map_" + mapId + " a").remove();
// add list item
var li = $("<li/>");
li.append(name + " (id: " + mapId + ", type: " + type + ")<br/>");
li.appendTo("#map_" + mapId + " ul");
}
giscloud.ready(function() {
getMapsData();
});
</script>
<body>
<h1>Getting map and layer data</h1>
<p>
This example shows how to retrieve public map data from GIS Cloud.
</p>
<p>
Once loaded, maps are displayed in the list below. You can see their names and ids. <br/>
Clicking on the <i>Get layers</i> links will retrieve layer data for each map.
</p>
<ul id="list"></ul>
<p>
The code:
</p>
<pre>
function getMapsData() {
// get public maps
giscloud.maps.list(function(mapdata) {
var i, k, map;
// mapdata contains an array of giscloud.Map objects
for (i = 0, k = mapdata.length; i < k; i++) {
map = mapdata[i];
// show map data on the page
showMapData(map.id, map.name);
}
});
}
function getLayersData(mapId) {
// get layers data
giscloud.layers.byMapId(mapId, function(layerdata) {
var i, k, layer;
// layerdata contains an array of giscloud.Layer objects
for (i = 0, k = mapdata.length; i < k; i++) {
layer = layerdata[i];
// show map data on the page
showLayersData(mapId, layer.id, layer.name);
}
});
}
</pre>
</body>
</html>