[OpenLayers-Users] Features not drawn - I have tons of features, some features not alwyas drawn - when panned into map

[Nick Kendall]

I think you're starting to push the browser limits with that many vector features..

Sent from my mobile device

On Jun 10, 2011, at 3:56 PM, JK Chen <jk.chen at sdl.usu.edu> wrote:

> Hi,
> 
>  
> 
> My program creates 2000 markers, each associated with a polygon, which represents the area of an aerial image.
> 
>  
> 
> When I pan the map, the features that now go in the viewport are not always get drawn.  If I click on the vector layer Select item in the switcher control, then they are drawn after clicking on the switcher.
> 
>  
> 
> 1.      What could cause the problem of no-drawing?
> 
> 2.      I noticed noticeable performance latency. Any idea how to improve or how to design when dealing with thousands (could be tens of thousands) of markers/polygons?
> 
>  
> 
> Thanks for your help.
> 
>  
> 
> JK
> 
>  
> 
>  
> 
>  
> 
> <Clipboard01.jpg>
> _______________________________________________
> Users mailing list
> Users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/openlayers-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/openlayers-users/attachments/20110610/c680fb94/attachment.html