Am 10.04.12 12:33, schrieb Hannah Pethen:
I have observed a similar problem with Google mercator and vector files. I have a google satellite map, and several point vector files all in google mercator transformation, but the relationship between the locations on the map and the locations of the points of the vector files are not stable. If I open print composer or change the zoom I find the points have moved relative to the map, so that my points are not longer in the correct places, although I don't know whether the points or the map have moved (or both?). The same thing happens with vector line files. This happens whether or not I have 'on the fly transformation' checked and if I check 'on the fly transformation' and then use vector files in another transformation (e.g. EPSG4326) the same problem occurs. I wonder if there is an issue with the stability of the transformation and if this is affecting both my point locations and the polygon areas referred to by Nick.
You could try using EPSG:3857 instead of EPSG:900913. For some strange reasons raster data transformed to EPSG:900913 is located on the map different from EPSG:3857 projected rasters. Maybe another Qgis-guesses-projection-issue.
Greetings, Andre Joost _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
