Hi Ragi Thank you for the tips.
I browsed through the pages you referred to but I somehow did not find neither a formula nor the meaning of the parameters. Keep in mind that I am reading the binary format of PGeo and I am focussing on circular arcs only. The beginning of the encoding binary block elements are already clear. What's confusing is that I would expect as attributes just a starting point, a midpoint and an endpoint. But what's somehow there is s startpoint and followed by 4 or more attributes. Yours, Stefan _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
