[OpenLayers-Users] Draw US Counties really slow in IE

[Zac Spitzer]

browsers can't handle a large number of vector features, IE is far worse
than other browsers, especially older versions.

The solution is to use a map server to render these images server side

On Thu, May 31, 2012 at 10:43 AM, Doug Kunzman <dkunzman at usgs.gov> wrote:
> I'm trying to draw using open layers a collection of polygons and
> multipolygons that I retrieve using JSON that represent the US county
> boundaries.
> I've used a smoothing algorithm to reduce the number of points by about 80%
> when using IE.
> It displays in under a minute using Firefox.  It takes about 6 minutes to
> display in IE.
>
> I've created a refresh strategy and set the update interval to 0.  So I
> shouldn't update the layer unless I've just added the polygons.
> Which I draw using redraw.
>
> I have everything in the same projection.
>
> I've used a javascript and haven't discovered anything unusual.
>
>
> Does anyone else have any other suggestions?
>
> Doug
>
>
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-- 
Zac Spitzer
Solution Architect / Director
Ennoble Consultancy Australia
http://www.ennoble.com.au
http://zacster.blogspot.com
+61 405 847 168