Files
openlayers/examples/projected-map.html
2007-09-14 01:54:50 +00:00

63 lines
2.2 KiB
HTML

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style type="text/css">
body {
border: 0px;
margin: 0px;
padding: 0px;
}
#map {
width: 100%;
height: 100%;
border: 0px;
padding: 0px;
}
</style>
<script src="../lib/OpenLayers.js"></script>
<script type="text/javascript">
var lat = 900863;
var lon = 235829;
var zoom = 6;
var map, layer;
function init(){
map = new OpenLayers.Map( 'map' );
var basemap = new OpenLayers.Layer.WMS( "Boston",
"http://boston.freemap.in/cgi-bin/mapserv?",
{
map: '/www/freemap.in/boston/map/gmaps.map',
layers: 'border,water,roads,rapid_transit,buildings',
format: 'png',
transparent: 'off'
},
// These are the important parts for creating a non-epsg:4326
// map: Maxextent is the boundary of the map/tile loading area,
// maxResolution is the units/pixel at the highest zoom, and
// projection is the projection to be used in WMS/WFS Requests.
{
maxExtent: new OpenLayers.Bounds(33861, 717605, 330846, 1019656),
maxResolution: 296985/1024, // Another alternative is 'auto', which
// will automatically fit the map: you can
// then check map.baseLayer.resolutions[0] for
// a reasonable value.
projection:"EPSG:2805", // Used in WMS/WFS requests.
units: "m" // Only neccesary for working with scales.
} );
map.addLayer(basemap);
map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
map.addControl(new OpenLayers.Control.LayerSwitcher());
}
</script>
</head>
<body onload="init()">
<div id="map"></div>
<p>When using alternative projections, you still use OpenLayers.LonLat objects, even though
the properties are actually X/Y values at that point.</p>
</body>
</html>