[OpenLayers-Users] strange artefacts in overlay layer (mapserver)

[BrainDrain]

If I catch some place with artefact it disappears when I force overlay layer
redraw

Christopher Schmidt-4 wrote:
> 
> On Wed, Sep 10, 2008 at 06:12:12AM -0700, BrainDrain wrote:
>> 
>> I have 2 mapserver layers in my map:
>> 1st (transparent:false):
>> isBaseLayer:true,alpha:false,singleTile:false,transitionEffect:'resize',buffer:0,gutter:16
>> 2nd: (overlay,transparent:true):
>> isBaseLayer:false,alpha:false/true,singleTile:false,transitionEffect:'resize',buffer:0,gutter:0
>>  and I have square artefacts (image tone or opacity/transparency changes)
> 
> Looks to me like you're using 256 color dithering without a fixed color
> palette set, which means that your tiles are all going to have the
> 'ideal' colorset based on the rendering backend, and between tiles these
> can differ depending on the data included in the tile. 
> 
>> while paning/zooming map:
>> IE example:
>> http://www.nabble.com/file/p19413291/ie.jpg 
>> and after scrolling down:
>> http://www.nabble.com/file/p19413291/ie2.jpg 
>> k-meleon(gecko):
>> http://www.nabble.com/file/p19413291/k-meleon.jpg 
>> need help
>> 
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>> 
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> 
> -- 
> Christopher Schmidt
> MetaCarta
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> 

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Sent from the OpenLayers Users mailing list archive at Nabble.com.