Resampling rasters from unprojected WMS sources ?

Lars V. Nielsen (HVM) LVN at HVM.DK
Fri May 27 06:13:44 PDT 2005


I'm rendering a map in a UTM projection, but want to add a satellite image
wms service that only delivers images in lat/long wgs84.

No problem, I set the wms layer projection to epsg:4326, while my map (and
other layers) use projection epsg:25832. And it works, or almost ...

The sat image is distorted - "flattened" - so the vector line work layers on
top of it exceeds the country coast line north and south. And quite
significantly so.

Shouldn't the raster re-projection algoritms in Mapserver take care of such
distortions, or is mixing projected and unprojected coordinate systems
(still) a no-no ?

Best regards / Med venlig hilsen
Lars V. Nielsen
--------------------------------------------------------
Hvenegaard & Meklenborg
Rugaardsvej 55, DK-5000 Odense C
Denmark
http://www.hvm.dk



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