29 lines
700 B
Python
29 lines
700 B
Python
###########################################
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# Created on 1-9-2013. Miguel Angel Astor #
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###########################################
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import math
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PI = 3.14159
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def angle_to_vector(angle):
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return [math.cos(angle), math.sin(angle)]
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def normalize_vector_2D(vec):
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norm = norm2_2D(vec)
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return (vec[0] / norm, vec[1] / norm)
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def dot_product_2D(vec1, vec2):
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return (vec1[0] * vec2[0]) + (vec1[1] * vec2[1])
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def norm2_2D(vec):
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return math.sqrt(dot_product_2D(vec, vec))
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def angle_vectors_2D(vec1, vec2):
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return math.atan2(vec2[1], vec2[0]) - math.atan2(vec1[1], vec1[0])
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def ang_2_radians(ang):
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return (ang * PI) / 180.0
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def radians_2_ang(rad):
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return (rad * 180.0) / PI
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