[Users] Google Layer Problem

Kai Volland kaivolland at web.de
Thu Oct 13 13:16:24 CEST 2011


I'm using Mapserver so i think i have to fix the *.map-file.
Any solutions for my wfs projection problems?
Is there a function like "onbaselayerchange()", so i can change the 
projection?

Am 12.10.2011 17:08, schrieb Andreas Hocevar:
>
> This sounds like your WMS layer is a cached layer with a projection 
> different from the one determined by the Google layer (Web Mercator, 
> EPSG:900913 or 3857).
>
> Note that if your Google layer becomes the first visible layer, it 
> will be the base layer, and the other grid layers will be requested in 
> the Web Mercator projection. If, on the other hand, your WMS layer 
> becomes the base layer, all other grid layers will use its projection.
>
> So when working with Google or other Web Mercator layers, you should 
> make sure that all your other layers also support Web Mercator.
>
> On Oct 12, 2011 1:09 PM, "Kai Volland" <kaivolland at web.de 
> <mailto:kaivolland at web.de>> wrote:
>
>     Hi Users,
>
>     i've some problems with my google baselayer. I'm using the V3 api.
>
>     I've a layertree with three base layers. One of them is a google
>     layer:
>
>     /var gphy = new OpenLayers.Layer.Google(
>         "Google Physical",
>         {type: google.maps.MapTypeId.TERRAIN}
>     );/
>
>     If i select it, one of my three WMS-Layers is not displayed but
>     this errormessage is shown:
>
>     "Could not get retrieve any sources:
>       no image returned from source wms"
>
>     The second problem is, that all my wfs data is displyed close to
>     Sao Tome and principe in one point. Maybe 0"N, 0"E ?
>     A Click-Event in the near of this point returns weird coords
>     "-59429.116394162 N, -12061.97722435 E.
>     So it has to be a transformation problem...
>
>     Any Idea how to fix it?
>
>
>     Kind regards
>
>     Kai
>
>
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