s2pv¶
- erfa.s2pv(theta, phi, r, td, pd, rd)[source]¶
Convert position/velocity from spherical to Cartesian coordinates.
- Parameters:
- thetadouble array
- phidouble array
- rdouble array
- tddouble array
- pddouble array
- rddouble array
- Returns:
- pvdouble array
Notes
Wraps ERFA function
eraS2pv
. The ERFA documentation is:- - - - - - - - e r a S 2 p v - - - - - - - - Convert position/velocity from spherical to Cartesian coordinates. Given: theta double longitude angle (radians) phi double latitude angle (radians) r double radial distance td double rate of change of theta pd double rate of change of phi rd double rate of change of r Returned: pv double[2][3] pv-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.