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More work on KaMap layer. This TIGER demo looks good, but it's really broken underneath.

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@666 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
crschmidt
2006-06-22 10:47:43 +00:00
parent 98ed96e4ec
commit 8600f7d688
2 changed files with 33 additions and 3 deletions
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29
examples/tiger.html Normal file
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@@ -0,0 +1,29 @@
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style type="text/css">
#map {
width: 800px;
height: 475px;
border: 1px solid black;
}
</style>
<script src="../lib/OpenLayers.js"></script>
<script type="text/javascript">
<!--
function init(){
var map = new OpenLayers.Map('map', {'maxResolution': 1.2/4});
var ka_wms = new OpenLayers.Layer.KaMap( "KaMap", "http://maps.dmsolutions.ca/demo/us_streets/tile.php", {map:'tiger04', g:'__base__'}, new OpenLayers.LonLat(0,0));
ka_wms.setTileSize(new OpenLayers.Size(300,300));
map.addLayers([ka_wms]); // , ka_wms, kamap_wms]);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.setCenter(new OpenLayers.LonLat(-70, 30), 2);
}
// -->
</script>
</head>
<body onload="init()">
<h1>OpenLayers Example</h1>
<div id="map"></div>
</body>
</html>

7
lib/OpenLayers/Layer/KaMap.js
View File

@@ -18,7 +18,8 @@ OpenLayers.Layer.KaMap.prototype =
// this.cellSize = newScale/(oMap.resolution * inchesPerUnit[oMap.units]);
// kaMap.prototype.geoToPix = function( gX, gY ) { var pX = gX / this.cellSize; var pY = -1 * gY / this.cellSize; }
initialize: function(name, url, params) {
initialize: function(name, url, params, origin) {
this.kaOrigin = origin;
var newArguments = new Array();
newArguments.push(name, url, params);
OpenLayers.Layer.Grid.prototype.initialize.apply(this, newArguments);
@@ -37,8 +38,8 @@ OpenLayers.Layer.KaMap.prototype =
// 1280000 is an empirical value for a specific tile server, not yet figured out the right way to do this in general.
// This will probably be based on map.maxResolution.
var cellSize = new OpenLayers.Size(resolution*this.tileSize.w, resolution*this.tileSize.h);
var pX = Math.floor(bounds.left / cellSize.w) * this.tileSize.w;
var pY = -Math.floor(bounds.top / cellSize.h) * this.tileSize.h;
var pX = Math.floor(((bounds.left + this.kaOrigin.lon) / cellSize.w) * this.tileSize.w);
var pY = -Math.floor(((bounds.top+this.kaOrigin.lat) / cellSize.h) * this.tileSize.h);
var url = this.getFullRequestString(
{ t: pY,
l: pX,