[OpenLayers-Users] How to add many(>400) markers to the map?

Michal Seidl michal.seidl at gmail.com
Tue Apr 14 05:44:52 EDT 2009


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?


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