[OpenLayers-Users] Zoom to Filter Extent

[Brad Spencer]

Hi,

 

If you get an answer to this I would like to know about it as well. 

 

Currently, I do a filtered WFS request then I scan the geometry of all the
polygons returned to the application and calculate a BBox for each; then I
add to bounds and I end up with a BBox that includes my whole collection of
filtered polygons. This process can be slow given the number of polygons and
their size. To mitigate this I have preprocessed the polygons and added a
BBox attribute on each polygon record inside the DB which means I can avoid
the geometry parsing but I do not think I can avoid the WFS download which
is now my bottleneck.

 

Anyway, not sure if this helps you?

 

Brad..

 

From: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] On
Behalf Of bmcbride
Sent: Tuesday, November 25, 2008 1:41 AM
To: users at openlayers.org
Subject: [OpenLayers-Users] Zoom to Filter Extent

 

Hello, I am working on an OpenLayers / GeoServer project and am trying to
utilize the Filter tool, which is built into the GeoServer 1.7.0 OpenLayers
preview template. I would like to be able to zoom to the extent of the
filtered features- so the user can basically enter a search, which performs
a filter and zooms to the results. Is there any way to grab the extent of
the current filter and perform some kind of ZoomtoFilterExtent call? My
question is very similar to this post:
http://www.nabble.com/searching-a-feature-with-open-layers-td13724745.html#a
13761443 Thanks! 

  _____  

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Filter Extent
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