Path: chuka.playstation.co.uk!news
From: "Nick Slaven" <NickSlaven@compuserve.com>
Newsgroups: scee.yaroze.programming.2d_graphics
Subject: Re: Calculating bearings - HELP!
Date: Sun, 18 Oct 1998 12:16:40 +0100
Organization: PlayStation Net Yaroze (SCEE)
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Message-ID: <70cj1f$s3k5@chuka.playstation.co.uk>
References: <3629C00D.4EE4@mdx.ac.uk>
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Harvey Robert Cotton wrote in message <3629C00D.4EE4@mdx.ac.uk>...
>the bearing from point x1,y1 to point x2,y2 using fixed point! Can


There is a fixed point trig library somewhere on this site.
try http://www.netyaroze-europe.com/~nslaven/  ;-)
cheers


Nick S


PS:
tan b=dx*4096/dy  sin b=dx*4096/r  cos b=dy*4096/r
dx=x2-x1;dy=y2-y1;r=sqrt(dx*dx+dy*dy)
the signs of dx & dy will determine the quadrant
of the bearing b. b is 0deg due north