Re: [gdal-dev] Cassini_Soldner warping using WGS84 GCPs is distorted

2009-09-21 Thread Martin Geng
-dev@lists.osgeo.org Betreff: Re: [gdal-dev] Cassini_Soldner warping using WGS84 GCPs is distorted Martin, Examining the GCPs in WGS84 space I see: (13.4841338099227 - 13.4370322252183) / 15118 3.1155962894827404e-06 %.10f % ((13.4841338099227 - 13.4370322252183) / 15118

Re: [gdal-dev] Cassini_Soldner warping using WGS84 GCPs is distorted

2009-09-18 Thread Frank Warmerdam
Martin Geng wrote: I have a city map in Cassini_Soldner projection with a separate file containing the Soldner coordinates of the 4 corners. I want to reproject it to WGS84 in order to render it e.g. with SharpMap and display some GPS positions. I have tried it with some different parameter