Some of my students have been having intermittent, strange problems reprojecting. They¹ve received errors that there are no projection parameters. I sent in a report a couple months back but neither I nor others have been able to replicate this in a consistent way.
I may have figured out what is happening. I think it¹s a problem with NAD and Windows. I don¹t remember the reason, but there needs to be special treatment of NAD projections at build time. I think it¹s because the projection information is stored in a special file and not in the normal PROJ data file. When I compile on my Mac, I need to ... export NAD2BIN=/Library/Frameworks/PROJ.framework/Programs/nad2bin ...before compiling to make sure that I get proper information for NAD projections. In fact, it seems like it is necessary to call a linux/unix program to handle NAD projections and that this may not be available in Windows. I wonder if this is not happening with the native Windows build and causing problems when the students use locations with NAD projections. Does this make sense? Michael __________________________________________ Michael Barton, Professor of Anthropology Director of Graduate Studies School of Human Evolution & Social Change Center for Social Dynamics & Complexity Arizona State University phone: 480-965-6213 fax: 480-965-7671 www: http://www.public.asu.edu/~cmbarton
_______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
