p2s

erfa.p2s(p)

P-vector to spherical polar coordinates.

Parameters:

pdouble array

Returns:

thetadouble array

phidouble array

rdouble array

Notes

Wraps ERFA function eraP2s. The ERFA documentation is:

- - - - - - -
 e r a P 2 s
- - - - - - -

P-vector to spherical polar coordinates.

Given:
   p        double[3]    p-vector

Returned:
   theta    double       longitude angle (radians)
   phi      double       latitude angle (radians)
   r        double       radial distance

Notes:

1) If P is null, zero theta, phi and r are returned.

2) At either pole, zero theta is returned.

Called:
   eraC2s       p-vector to spherical
   eraPm        modulus of p-vector

This revision:  2021 May 11

Copyright (C) 2013-2023, NumFOCUS Foundation.
Derived, with permission, from the SOFA library.  See notes at end of file.