[OpenLayers-Users] WFS Layer Behavior

[Tim Schaub]

Hey-

Bill Thoen wrote:
> When you open a WFS layer does OL load the entire data file, or just the 
> features that are visible in the map window? I tried feeding it a large 
> table and it took quite a while to display, so I was wondering if that 
> was because it had to dig into the table to find the features in the map 
> window or if it just loaded everything.
> 

Use Firebug to monitor XMLHttpRequest traffic.  You should see a 
GetFeature request with a bbox parameter in the query string.  Your 
response should contain just those features that intersect the bbox 
(assuming the server works as a WFS).

Tim

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-- 
Tim Schaub
OpenGeo - http://opengeo.org
Expert service straight from the developers.