Am Freitag, 6. Mai 2005 04:12 schrieb Hamish: > Both QGIS and GRASS use OGR from GDAL for loading map formats. > > see: > http://www.gdal.org/ > http://www.gdal.org/ogr/ogr_formats.html > http://www.gdal.org/formats_list.html > > GDAL/OGR is Free software. Thank you very much, this looks well. I should be able to write some conversion tool for bna files, then. Regards Ralf