Dear list, I'd like to set up a wms mapserver with planetary maps, more precisely Mars. There are the standard IAU definitions for the ellipsoid, e.g.:
49900,GEOGCS["Mars 2000",DATUM["D_Mars_2000",SPHEROID["Mars_2000_IAU_IAG",3396190.0, 169.89444722361179]],PRIMEM["Greenwich",0],UNIT["Decimal_Degree",0.0174532925199433]] as well as for projections: 49910,PROJCS["Mars_Equidistant_Cylindrical","GEOGCS["Mars 2000",DATUM["D_Mars_2000",SPHEROID["Mars_2000_IAU_IAG",3396190.0, 169.89444722361179]],PRIMEM["Greenwich",0],UNIT["Decimal_Degree",0.0174532925199433]], PROJECTION["Equidistant_Cylindrical"],PARAMETER["False_Easting",0],PARAMETER["False_Northing",0], PARAMETER["Central_Meridian",0],PARAMETER["Standard_Parallel_1",0],UNIT["Meter",1]] These are already incorporated in Arc WMS, so there are Mapservers which spit out the IAU2000 srs codes in their GetCapabilities: http://www.mapaplanet.org/explorer-bin/imageMaker.cgi?map=Mars&request=GetCapabilities&version=1.1.1 There is a proposal to OGC conformity of these codes: http://www.lpi.usra.edu/meetings/lpsc2006/pdf/1931.pdf Could anybody explain me if there is a way of importing them into my mapserver application? When I do: METADATA "wms_srs" "IAU2000:49910" "wms_name" "mars_viking_color" "wms_server_version" "1.1.1" "wms_format" "image/gif" END I get the following error: msBuildWMSLayerURL(): WMS connection error. Layer must have an EPSG or AUTO projection code (in its PROJECTION object or wms_srs metadata) Can't I include the IAU2000 codes somewhere in my proj setup? The projection definition of my MAP is this: PROJECTION proj=latlong pm=0 a=33961900 b=33762000 END Which should fit to the IAU2000 definitions. As you can see, the wms from the link above supports also EPSG:4326 for compatibility, but when I import the layer with this, it's missing some degrees in the southern hemisphere. Any comments would be greatly appreciated. Regards, Sebastian