On Tue, Apr 10, 2012 at 1:41 PM, Ivan Lucena <[email protected]> wrote: > It seems to me that the GTIFF driver tries to interprets the WKT instead of > just pass it on. Is that right? It doesn't seems to be doing it right.
Ivan, When the GeoTIFF file contains parameters in addition to the PCS code, it is likely that the coordinate system is being composed from the parameters instead of being derived from the PCS code. Basically the geotiff file is overspecified and the driver makes a choice not to trust the PCS code. For instance, sometimes folks change the linear units and trusting the PCS code would lead to wrong results. The final coordinate system seems correct if a bit different in details (like PCS name) from what you might expect. Ideally we would compare all the parameters to the ones from the PCS and if everything matches we would actually use the PCS code and attach it as an authority code. So if you file a ticket on this issue that would be the features I'd hope to implement. That might be a bit hard though. Best regards, ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, [email protected] light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Software Developer _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
