Hello all.
I would really appreciate help with following tests I am performing.
I have set up very basic Open Layers scenario, displaying WMS from Open Layers,
Yahoo and Mapnik.
My problem is, I can change layers only from Open Layers WMS to Yahoo and back,
not to Mapnik,
if I do, everything gets broken, I see "South pole" instead of central Europe
and the projection is so corrupted I even can not switch back to original Layer.
It looks like some OpenStreetMap js bug, because in the following code, if I do
have layers order set to
map.addLayers([mapnik, wms, yahoo]);
- mapnik first, then I see mapnik map ok, but if I switch to Yahoo for example,
the projection gets broken,
but if I set order to
map.addLayers([yahoo, wms, mapnik]);
- then I can see yahoo layer, I can change to Open Layers WMS, but when I
change to Mapnik, everything is broken again.
even more, when I try to display a data imported to postgis from osm and
published by geoserver,
I can see the data aligned using only Open Layers WMS; if I use Yahoo then the
projection is shifted (by 100 km for example),
and I have problems using Mapnik at all.
Am I doing something wrong ?
Thank you for any help.
--------------------------------------------------------
<html xmlns="http://www.w3.org/1999/xhtml";>
<head>
<title>OpenLayers: Yahoo Layer</title>
<link rel="stylesheet"
href="http://openlayers.org/dev/examples/../theme/default/style.css";
type="text/css" />
<link rel="stylesheet" href="style.css" type="text/css" />
<script src="http://www.openlayers.org/api/OpenLayers.js";></script>
<script
src="http://www.openstreetmap.org/openlayers/OpenStreetMap.js";></script>
<script
src="http://api.maps.yahoo.com/ajaxymap?v=3.0&appid=euzuro-openlayers";></script>
<script type="text/javascript">
var map;
function init(){
var options = {
controls: [
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.PanZoomBar(),
new OpenLayers.Control.LayerSwitcher(),
new OpenLayers.Control.Permalink('permlink'),
new OpenLayers.Control.MousePosition({element:
$('location')}),
new OpenLayers.Control.KeyboardDefaults()
],
units: 'm',
numZoomLevels: 15
};
map = new OpenLayers.Map('map',options);
var yahoo = new OpenLayers.Layer.Yahoo("Yahoo");
var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik");
var wms = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0";,
{layers: 'basic'}
);
map.addLayers([yahoo, wms, mapnik]);
var lonLat = new OpenLayers.LonLat(14, 50).transform(new
OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
map.setCenter (lonLat, 7);
}
</script>
</head>
<body onload="init()">
<div id="map" style="width:100%; height:80%"></div>
</body>
</html>
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