On Thu, Jul 9, 2009 at 9:10 PM, Christian Gawron<christian.gawron@gmx.de> wrote:
The CGIAR files are GeoTIFF files which cover 5x5 degrees. You can get them from http://srtm.csi.cgiar.org/. The ASTER data (http://asterweb.jpl.nasa.gov/gdem.asp) also comes as GeoTIFF files (each covering 1x1 degrees as the SRTM HGT files).
Hello Christian, Thanks for your work on this: this is a great feature! I was able to successfully compile a small area using ASTER tiles. The resulting map looked correct. However, I was not able to compile a larger area. I tried Rheinland-Pfalz as downloaded from Geofabrik. If I understood the error message and the coding correctly, this is because Rheinland-Pfalz crosses the 1x1 ASTER tile boundaries: a map tile compiled with your patch apparently must lie completely in the 1x1 ASTER boundary. Is this correct? If so, this would be an unfortunate limitation. It would require maps to be split at exactly the 1 degree lat/long boundaries. Or is this something that can be eventually coded around? I suppose that this is less of an issue with the 5 degree CGIAR data. Thanks and Cheers.