Mike Riddle <Mike.Riddle@f27.n285.z1.fidonet.org> (06/27/90)
[Moderator's Note: This message was intended to accompany the V&H Fortan routines which appeared in Digest # 458 early Wednesday. Unfortunatly it was delayed in transmission and arrived here later. PT] The file in the accompanying message contains the routines I mentioned. It contains several Fortran subroutines which should be quasi-obvious to implement. If you don't code Fortran, you could probably understand them from either BASIC or Pascal; if you can't comprehend the math involved, then you may be in over your head already. When using the coordinate system, it is NOT necessary that you have the same X-Y grid as the phone company so long as you are using statute miles, nautical miles, furlongs, picometers or whatever consistent with their distancing measurement. The most convenient way to do it is probably to use real-Earth latitudes and longitudes and PAY ATTENTION TO WHICH ROUTINES USE DEGREES AND WHICH ARE IN RADIANS. If you really want a polished, finished product, I really can't comply as I am under some conflict of interest restrictions (sounds nebulous because it is). Thanks for the bevy of responses I received. Jim R. --- Ybbat (DRBBS) 8.9 v. 3.11 r.3 [1:285/27@fidonet] The Inns of Court 402/593-1192 (1:285/27.0) --- Through FidoNet gateway node 1:16/390 Mike.Riddle@f27.n285.z1.fidonet.org