[Mapserver-users] World map projections without inverse projection

[Jan Hartmann]

Hi,

I have been working on something educational with projections, using a 
small world map in latlong and projecting it to all supported 
projections in MapServer 3.7 CVS and Proj4.4.6. Some twenty projections 
crash MapServer, but work fine when used from command-line Proj. Most of 
these are from the "Misc" section of the Proj manual, like Apian or 
Ortelius . What unites them is that they all lack support for inverse 
projections. Can anyone explain why this is so (or even better, suggest 
a way to get them working with MapServer)? I can't understand why 
MapServer would need an inverse projection just to project a map from 
latlong to these projections.

Jan