Piotr Pachół wrote: > Hello, > > I have problem with transformation between the Polish coordinate systems that > are in different map projections. I mean the transformation beetween EPSG > 2180 and EPSG 3120, 2172, 2173, 2174, 2175. > > I use the transformation which is available in QuantumGIS: Tools-> Data > Management Tools-> Export to new projection. After the transformation data > are situated in wrong place. Shift values are different for example: > > - when project is in EPSG 2180 and we add data formely transformed > from EPSG 2175 to EPSG 2180 data shifts are approximately 130 meters. > > - On the other hand when project is in EPSG 2175 and we add data > formely transformed from EPSG 2180 to EPSG 2175 data shifts are approximately > 0,5 meter. > > I don't know if it is a problem of data displaying in Quantum GIS or problem > of projection library. > > Anybody can help me what to do ? > > > > Piotr >
After reprojecting, are you turning projection on the fly on is QGIS? If you don't project on the fly it would be expected that they would shift, I haven't looked at those particular projections but the distance sounds reasonable. Otherwise can you post a sample for some of us to try. Thanks, Alex _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
