True Heading

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I am forwarding this request:

Can you in GRASS not only get the distance between two points but
also a true <aircraft> heading? If so, is it an easy process?

Comments can be sent directly to Eric Scwarz at 314/263-4728 (he
is not on the user's list) or to Lisa Ehlers McCuller 217/373-4420.

Thanks

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Lisa Mcculler (mcculler@vinny.cecer.army.mil ) writes on 16 Jul 93:

Can you in GRASS not only get the distance between two points but
also a true <aircraft> heading? If so, is it an easy process?

It's my understanding, from recent discussion on the programmer's
list, that it is not currently possible to do this (in a general way)
in GRASS programs. If it is, could someone please explain how?