I'm trying to figure out how to use the "Create Arc" function, and am running into some snags. My knowledge of trig is a little lacking. This is the situation:
I have two lines originating from Point A. We'll call the non-connected ends of the lines Points B and C. I'm trying to create an arc that goes from Point B to Point C, so that it would form an arc equal to a circle section a specific distance away from Point A. Now, my understanding of Create Arc is you need the start X,Y and the end X,Y, but you also need the start angle, and end angle. My question is this . . . given that I know the start and end X,Y, and that the angle between the two lines at Point A is 90 degrees (not sure if that would matter), what is the formula that I use to find the start and end angle? TIA Terry _______________________________________________________________________ List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MapInfo-L" in the message body.
