To all who graciously responded to my ps.map question, thanks.
Although the survey said, "do you really have a mask running?"
the real answer came from Scott Wade at CERL: there is a bug in
ps.map. You have to be PRINTING a raster file for the vector masking
to work. In our scripts we were printing only masked vector files.
Without a raster call in ps.map, it didn't set the needed tmp file
and bombed out.
The "fix" is to print an all white map. If you don't want actually
print a raster file, then either recolor one to white, or in ps.map
set each category to white. Then it will "invisibly print" your
raster map underneath your vectors.
Thanks again for the responses.
-Sue Huse
REGIS
UC Berkeley.