ang2vec
call ang2vec( theta, phi, vector )
name&dimensionality | kind | in/out | description |
---|---|---|---|
theta | DP | IN | colatitude in radians measured southward from north pole (in
[0,![]() |
phi | DP | IN | longitude in radians measured eastward (in [0, 2![]() |
vector(3) | DP | OUT | three dimensional cartesian position vector (x, y, z) normalised to unity. The north pole is (0, 0, 1) |
Eric Hivon 2003-02-07