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root/radiance/ray/src/cv/source.cal
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Comparing ray/src/cv/source.cal (file contents):
Revision 2.6 by greg, Mon Apr 5 16:40:10 1993 UTC vs.
Revision 2.7 by greg, Thu Dec 9 16:58:03 1993 UTC

# Line 33 | Line 33 | boxcorr(v) = A1 * v / boxprojection;   { correction for
33   lboxcorr(v) = A1 * v / lboxprojection;  { local box correction }
34  
35   src_theta = Acos(Dz) / DEGREE;                  { 0-180 }
36 < src_phi = mod( atan2(Dy, -Dx) / DEGREE, 360 );  { 0-360 }
36 > src_phi = mod( Atan2(Dy, -Dx) / DEGREE, 360 );  { 0-360 }
37                                  { bilateral symmetry }
38   src_phi2 = tri( src_phi, 180 );         { 0-180 }
39                                  { quadrilateral symmetry }

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