[OpenLayers-Users] GeoExt + OpenLayers: WMSGetCapabilities->WMS layering onto OSM

[christopher.schmidt at nokia.com]

On Jun 16, 2010, at 11:47 AM, ext Jefferson Heard wrote:

> I'm trying to layer a WMS layer onto an OpenStreetMaps map.  I'm getting WMS layers from WMSGetCapabilities records coming from GeoExt.  My base layer is, of course, spherical mercator (OSM), but my WMS layers are EPSG:4326 - namely the NOAA Weather Radar Mosaic and IR base reflectivity images.  Does anyone know how to do this?  Currently, I'm doing this:
> 
> var grid = Ext.getCmp('avail_overlays_grid');
> var record = grid.getSelectionModel().getSelected();
> if(record) {
> 	var copy = record.copy();
> 	copy.data["layer"] =  record.get("layer");
> 	copy.get("layer").mergeNewParams({
> 		format: "image/png",
> 		transparent: true,
>                reproject: true
>        });
> 	copy.get("layer").shared=false;
>        copy.get("layer").displayInLayerSwitcher=true;
>        panel.layers.add(copy);
> }

All raster layers must be in the same projection. OpenLayers
can't reproject images.

Regards,
-- 
Christopher Schmidt
Nokia