[OpenLayers-Users] Zoom to a Layer's Extent

[Christopher Schmidt]

On Mon, Sep 08, 2008 at 09:27:03AM -0600, Bill Thoen wrote:
> Christopher Schmidt wrote:
> >On Fri, Sep 05, 2008 at 01:10:53PM -0600, Bill Thoen wrote:
> >  
> >>Christopher Schmidt wrote:
> >>    
> >>>In 2.7RC1 (just released) you can use getDataExtent() for that. (We
> >>>didn't add getDataExtent for vector layers until after 2.6.)
> >>>
> >>>Also, using 2.7RC1 would help us get more 2.7 testing :)
> >>>      
> I checked again and it doesn't seem to work with WFS layers at least.
> 
> If you look at http://206.168.217.244/zoomToLayerExtents.html, you'll 
> see what I mean.
> 
> In this example, (using 2.7RC1) I open a base layer of the US from 
> MapServer and then open an overlay layer of a pipeline network from a 
> MapServer WFS. Then I set up a listener to call the function 
> layerLoaded() on the loadend event (so that the layer has its features 
> array populated.) Finally, in layerLoaded I call  map.zoomToExtent 
> (layer.getDataExtent()), but the map doesn't zoom. The commented out 
> call to zoomToLayerExtents() right next to that line actually does what 
> I want (which is to zoom into the area covered by the pipeline layer.)
> 
> So is this a bug with getDataExtent() or is it working as its should and 
> I'm just using it wrong?

Bug in getDataExtent. Filed as #1725. Workaround:

var bounds =
    OpenLayers.Layer.Vector.prototype.getDataExtent.apply(wfsLayer);

Regards,
-- 
Christopher Schmidt
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