I have two points, X1,Y1 and X2,Y2. I want to find the value from true north of X1,Y1 that X2,Y2 is.

How do I do it? I know you have to find the distance between the points, eg. X1 - X2, Y1 - Y2, but beyond that I have no idea. ;-)

If you don't know what I mean, then look here:

........o

....|
....o/

| is true north, / is the angle. o are the points. Ignore the .'s. =)

-Git

[Edited by git on 10-08-2000 at 05:10 AM]