[OpenLayers-Users] wfs markers without the redraw?

Brenningmeyer, Todd tbrenningmeyer at maryville.edu
Tue Aug 12 02:28:08 EDT 2008


Hi,

I've been trying to sort out exactly how to display my point data and really appreciate the help on the use of stylemaps vs. slds etc.  I have a related but slightly different question that I've been trying to sort out via the online help and list serve archives etc. but am not getting very far.  I have a series of sites in postGIS and am currently displaying these as wfs data.  The data loads somewhat slowly but the issue is that it refreshes or redraws each time the user zooms in or out.  In my last attempt I converted the wfs data to markers but it still refreshes during each zoom and sometimes during the pan.  Is there a way to avoid the redraw using wfs?  What is the best solution for serving about 200+ points?  Do I need to load the markers from a textfile to avoid the redraw or is there a very simple solution that I've probably overlooked?  I've seen several questions about speed of wfs for 300+ features but I'm still not clear on the difference in the use and creation of markers vs. vector points.  If both are created directly from postgis will they be forced to refresh or redraw in the same way during a zoom?

Thanks again for your help

Todd  




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