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
>
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--
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.
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