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melB
Posts:
1
Registered:
12/19/09


Help me do what I need to do
Posted:
Dec 19, 2009 5:22 PM


I am a programmer and my math skills are weak.
I want to draw an arrow. I know the start and end points of the arrow.
I need to draw the arrow head which will be made up of three points Point 1 is the end point which I already know
Point 2 and 3 would be a 45 degree angles a certain distance away from the end point. What is the magical math formula to calculate what points 2 and 3 are?



