Thanks Andreas
This would be exactly what i was looking for until I realized I am using
geoserver's sql view feature so each time I make a call for the layer the
actual bounding box will vary based on input. Thanks a lot for the suggestion
though.
I think i'll have to generate this from a custom service. A vector layer is
just too expensive for this particular use.
charles
On Nov 9, 2011, at 10:57 AM, Andreas Hocevar wrote:
> Hi,
>
> the best way to do this is to issue a GetCapabilities request, parse the
> response with OpenLayers.Format.WMSCapabilities, and look for the layer's
> bbox or llbbox in the capabilities object. An untested snippet to show you
> what I mean:
>
> var myLayerName = "my_layer";
> var obj = new OpenLayers.Format.WMSCapabilities().read(response.responseText);
> var capability = obj.capability;
> for (var i=0, len=capability.layers.length; i<len; i++) {
> var layerObj = capability.layers[i];
> if (layerObj.name === myLayerName) {
> map.zoomToExtent(OpenLayers.Bounds.fromArray(layerObj.llbbox));
> break;
> }
> }
>
> Andreas.
>
> On Nov 9, 2011, at 15:54 , Charles Galpin wrote:
>
>> I'm drawing a blank on the best way to do this. I have a wms layer (for
>> performance) that I'd like to zoom to the data extent for, but it looks
>> like this is not available for a wms layer like you can for a vector layer.
>>
>> Is there a fast call I can make to get the extent only and then use this to
>> zoom? I am using geoserver on the server side. Any suggestions would be
>> appreciated.
>>
>> Thanks,
>> charles
>>
>> _______________________________________________
>> Users mailing list
>> us...@lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/openlayers-users
>
>
>
> --
> Andreas Hocevar
> OpenGeo - http://opengeo.org/
> Expert service straight from the developers.
>
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