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Last change
on this file since 18123 was 14805, checked in by neise, 12 years ago |
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initial commit
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-
Property svn:executable
set to
*
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File size:
298 bytes
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| 1 | import numpy as np
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| 2 |
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| 3 | def length( v ):
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| 4 | return np.sqrt(np.dot(v,v))
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| 5 |
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| 6 | def uv_to_dir( u,v):
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| 7 | dir = np.array([u, v, np.sqrt(1-u**2-v**2) ])
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| 8 | return dir
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| 9 |
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| 10 | def uv_to_theta_phi( u,v ):
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| 11 | x,y,z = uv_to_dir(u,v).tolist()
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| 12 | theta = np.arccos(z)
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| 13 | phi = np.arctan2(y,x)
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| 14 | return theta, phi
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