Hi, if you were using Geoserver and wms, dynamic symbolizer could help you. Check the following out:
http://blog.geoserver.org/2008/12/08/dynamic-symbolizers-part-1/ - mika - willson kirjoitti: > > Hi, > try to search mailing list for strategies, performance. I have the same > problem not solved yet. It looks I will have to render at server site. > > Michal > > > Hi everyone, this is the first post on this forum. I have search the problem > on the forum, but find no anwser. > What I need to solve is: I have more than 400 points need to show on the > map, these points query my db every 10 secs, and change their color according > to the return value. > I use the openlayers.layer.marker to implement, but in ie the markers make > the map so slow when zooming. > Then I move to openlayers.layer.vector, but it's even slower than marker. > Any suggestion in such "Adding large and dynamically changed markers" > situation? > > > > > hi, render in serverside(may be wms) can improve the performance much, but > how to make markers dynamically change color? Any solution? > > _______________________________________________ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users