[gdal-dev] Is proj.4 lib necessary for Reprojection and Transformation?

[Even Rouault]

Selon atubar <atubar at 126.com>:

>
> After Reading API doc, I find it clear that GEOS lib is necessary for spatial
> analysis.
> And what about Proj? Does Gdal need supports from Proj lib for Reprojection
> and Transformation?
>

Yes, coordinate transformation and reprojection require PROJ.4 to be available
at runtime. I've just clarified that in the
http://gdal.org/ogr/classOGRCoordinateTransformation.html page.