[postgis] ST_TRANSFORM: proposal for postgis projectiontranformation

Dave Blasby dblasby at refractions.net
Tue Dec 18 14:22:36 PST 2001

I looked at Frank's (?) code for converting WKT to PROJ4.  Its complex.

Since we have already existing lists of WKT and PROJ4 for all the EPSG
projections, I'm not going to write the WKT->PROJ4 function.  

Perhaps someone can make a big list of all the EPSG projections in WKT
and PROJ4 and make a (big) example spatial_ref_sys table with both the
srtext (WKT) and proj4text?

At some point in the future, we can add the WKT->PROJ4 converter, but it
seems like a lot of work with very little actual gain.


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