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rlabbe/triangle_angles

Created February 17, 2015 19:11
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triangle_angles
def triangle_angles(p0, p1, p2):
A = p1 - p0
B = p2 - p1
C = p0 - p2
angles = []
for e1, e2 in ((A,-B), (B,-C), (C,-A)):
num = np.dot(e1, e2)
denom = np.linalg.norm(e1) * np.linalg.norm(e2)
angles.append(np.arccos(num/denom))
return angles
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