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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<link rel="stylesheet" href="../theme/default/style.css" type="text/css">
<link rel="stylesheet" href="style.css" type="text/css">
<style type="text/css">
#wmc {
width: 90%;
height: 300px;
}
/* avoid pink tiles */
.olImageLoadError {
background-color: transparent !important;
}
</style>
<script src="../lib/Firebug/firebug.js"></script>
<script src="../lib/OpenLayers.js"></script>
<script type="text/javascript">
// increase reload attempts
OpenLayers.IMAGE_RELOAD_ATTEMPTS = 2;
var format = new OpenLayers.Format.WMC({'layerOptions': {buffer: 0}});
var doc, context, map;
function init() {
map = new OpenLayers.Map("map");
var gwc = new OpenLayers.Layer.WMS(
"Global Imagery",
"http://maps.opengeo.org/geowebcache/service/wms",
{layers: "bluemarble"}
);
var vmap = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://vmap0.tiles.osgeo.org/wms/vmap0",
{layers: 'basic'},
{
maxExtent: new OpenLayers.Bounds(-130, 14, -60, 55),
maxResolution: 0.1,
numZoomLevels: 4,
minResolution: 0.02
}
);
var roads = new OpenLayers.Layer.WMS(
"Transportation Network",
"http://lioapp.lrc.gov.on.ca/cubeserv/cubeserv.pl",
{layers: "na_road:CCRS", transparent: "TRUE"},
{
isBaseLayer: false,
maxExtent: new OpenLayers.Bounds(
-166.532, 4.05046, -0.206818, 70.287
),
displayInLayerSwitcher: false,
opacity: 0.6,
minScale: 32000000,
numZoomLevels: 4,
maxScale: 6200000
}
);
var nexrad = new OpenLayers.Layer.WMS(
"Radar 3:1",
"http://columbo.nrlssc.navy.mil/ogcwms/servlet/WMSServlet/AccuWeather_Maps.wms",
{layers: "3:1", transparent: "TRUE"},
{
isBaseLayer: false,
maxExtent: new OpenLayers.Bounds(
-131.029495239, 14.5628967285,
-61.0295028687, 54.562896728
),
opacity: 0.8,
singleTile: true,
maxResolution: 0.1,
numZoomLevels: 4,
minResolution: 0.02
}
);
map.addLayers([gwc, vmap, roads, nexrad]);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.setCenter(new OpenLayers.LonLat(-95, 34.5), 4);
};
function readWMC(merge) {
var text = document.getElementById("wmc").value;
if(merge) {
try {
map = format.read(text, {map: map});
} catch(err) {
document.getElementById("wmc").value = err;
}
} else {
map.destroy();
try {
var jsonFormat = new OpenLayers.Format.JSON();
var mapOptions = jsonFormat.read(OpenLayers.Util.getElement('mapOptions').value);
map = format.read(text, {map: mapOptions});
map.addControl(new OpenLayers.Control.LayerSwitcher());
} catch(err) {
document.getElementById("wmc").value = err;
}
}
}
function writeWMC(merge) {
try {
var text = format.write(map);
document.getElementById("wmc").value = text;
} catch(err) {
document.getElementById("wmc").value = err;
}
}
</script>
</head>
<body onload="init()">
<h1 id="title">WMC Example</h1>
<div id="tags">
wmc, parser, advanced, cleanup
</div>
<p id="shortdesc">
Shows parsing of Web Map Context documents.
</p>
<div id="map" class="smallmap"></div>
<button onclick="writeWMC();">write</button><br>
<button onclick="readWMC();">read as new map</button> with the following extra map options : <input type="text" id="mapOptions" value='{"div": "map", "allOverlays": true}'/><br>
<button onclick="readWMC(true);">read and merge</button><br>
<button onclick="pasteWMC();">try with another WMC document</button><br>
<textarea id="wmc">paste WMC doc here</textarea>
<div id="docs">
<p>This is an example of parsing WMC documents. <br>
The format class has a layerOptions property, which can be used
to control the default options of the layer when it is created
by the parser.</p>
</div>
</body>
</html>
|
