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[Darrell McCauley]

Gerald I. Evenden (gie at charon.er.usgs.gov) writes on 22 Jul 93:
>Thus for any program that is otherwise operating on the data in
>cartesian space (x-y or easting-northing) considerable computational
>code must be in the program to inverse project the selected points
>back to geographic as well as code to perform geodesic computations.

so would anyone like to be a hero and add azimuth calculations
to GRASS? Sounds like there's a heap o' folk that would find
it useful (myself included).