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

[BrainDrain]

I'm trying to use 
OUTPUTFORMAT
 NAME "AGG_PNG24"
 #NAME "agg/png24"
 MIMETYPE "image/png; mode=24bit"
 DRIVER "AGG/PNG"
 EXTENSION "png"
 IMAGEMODE RGB 
 TRANSPARENT ON
 #IMAGEMODE RGBA
 FORMATOPTION "TRANSPARENT=ON"
 FORMATOPTION "INTERLACE=ON" 
 #FORMATOPTION QUALITY=90 
END
in both base and overlay layers but unsuccessfully.. still the same effect
after some zooming/moving operations((

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
>> 
>> -- 
>> View this message in context:
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>> Sent from the OpenLayers Users mailing list archive at Nabble.com.
>> 
>> _______________________________________________
>> Users mailing list
>> Users at openlayers.org
>> http://openlayers.org/mailman/listinfo/users
> 
> -- 
> Christopher Schmidt
> MetaCarta
> _______________________________________________
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> Users at openlayers.org
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> 
> 

-- 
View this message in context: http://www.nabble.com/strange-artefacts-in-overlay-layer-%28mapserver%29-tp19413291p19413898.html
Sent from the OpenLayers Users mailing list archive at Nabble.com.