[OpenLayers-Dev] OL not suitable for raster layers?

Stefanie Weykam stefanie at weykam.net
Thu Apr 15 06:28:54 EDT 2010

Thanks Bart,
I think we identified the source of our problems. In fact, our pixels 
are probably not square. The author of both maps is one of these guys 
working on global scales using ‘strange’ projections. I obliged him to 
transform his maps to EPSG:4326, as demanded by the OGC standard 
specifications, and the result might be an irregular pixel ratio. It 
seems that MapServer5.2.1, gvSIG and ArcGIS can handle that and display 
the pixels in place.
We will now see if we can get the pixels square somehow or otherwise 
reproject from the original projection although I am not sure if the 
latter will finally solve our problem in OpenLayers.
I will report to the list whether a simple reprojection does it or we 
actually have to resample the maps.
Thanks for your time,

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