.. _cart:

================================================================================
Cartesian to geodetic conversion
================================================================================

Convert geodetic coordinates to cartesian coordinates.

+--------------+--------------------------------------------------------------------+
| **Options**                                                                       |
+--------------+--------------------------------------------------------------------+
| `+ellps`     |  Ellipsoid of the input coordinates. If used together with the     |
|              |  ellipsoid parameters below, ``+ellps`` is overwritten.            |
+--------------+--------------------------------------------------------------------+
| `+a`         | Semi-major radius of ellipsoid axis.                               |
+--------------+--------------------------------------------------------------------+
| `+b`         | Semi-minor radius of ellipsoid axis.                               |
+--------------+--------------------------------------------------------------------+
| `+es`        | Eccentricity of ellipsoid.                                         |
+--------------+--------------------------------------------------------------------+
| `+f`         | Flattening of ellipsoid.                                           |
+--------------+--------------------------------------------------------------------+