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<FONT SIZE="4"><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>Some of my students have been having intermittent, strange problems reprojecting. They’ve 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.<BR>
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I may have figured out what is happening. I think it’s a problem with NAD and Windows. I don’t remember the reason, but there needs to be special treatment of NAD projections at build time. I think it’s 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 ...<BR>
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export NAD2BIN=/Library/Frameworks/PROJ.framework/Programs/nad2bin<BR>
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...before compiling to make sure that I get proper information for NAD projections.<BR>
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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.<BR>
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Does this make sense?<BR>
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Michael<BR>
__________________________________________<BR>
Michael Barton, Professor of Anthropology<BR>
Director of Graduate Studies<BR>
School of Human Evolution & Social Change <BR>
Center for Social Dynamics & Complexity<BR>
Arizona State University<BR>
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phone: 480-965-6213<BR>
fax: 480-965-7671<BR>
www: <a href="http://www.public.asu.edu/~cmbarton">http://www.public.asu.edu/~cmbarton</a> <BR>
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