python Programming Glossary: b.x

http://stackoverflow.com/questions/2150050/finding-signed-angle-between-vectors

How can you determine a point is between two other points on a line segment?

http://stackoverflow.com/questions/328107/how-can-you-determine-a-point-is-between-two-other-points-on-a-line-segment

pseudocode def isBetween a b c crossproduct c.y a.y b.x a.x c.x a.x b.y a.y if abs crossproduct epsilon return False.. return False # or 0 if using integers dotproduct c.x a.x b.x a.x c.y a.y b.y a.y if dotproduct 0 return False squaredlengthba.. a.y b.y a.y if dotproduct 0 return False squaredlengthba b.x a.x b.x a.x b.y a.y b.y a.y if dotproduct squaredlengthba return..

Intercept operator lookup on metaclass

http://stackoverflow.com/questions/8637254/intercept-operator-lookup-on-metaclass

__getattr__ s attr if attr __add__ return lambda a b a.x b.x elif attr __iadd__ def iadd self other self.x other.x return.. self return iadd elif attr __mul__ return lambda a b a.x b.x else raise AttributeError ## Some test code a Test 3 b Test..