globalmapper.ProjectPointAtElev
===============================

.. currentmodule:: globalmapper
.. py:function:: ProjectPointAtElev (float aXIn, float aYIn, GM_Projection_t aProjIn, GM_Projection_t aProjOut, float aElev) -> GM_Error_t32, float, float

    This function projects a point from one coordinate system to another at some elevation above the ellipsoid. Use this
    instead of ProjectPoint if you need to do extremely precise conversions at some height above the ellipsoid. The
    typical difference between conversions at the ellipsoid surface and within a few thousand meters of the surface is
    less than 1 meter. If None is passed for either projection parameter, the current view/export projection will be
    used. This function provides an easy way to convert from latitude/longitude coordinates (or coordinates in any other
    supported projection) to any other projection, including the current view projection.

    :param float aXIn: X coordinate of input point
    :param float aYIn: Y coordinate of input point
    :param GM_Projection_t aProjIn: projection to convert from (None for current)
    :param GM_Projection_t aProjTo: projection to convert to (None for current)
    :param float aElev: elevation in meters above ellipsoid surface to do conversion at
    :returns: Error Code
    :rtype: GM_Error_t32
    :return: X coordinate of output point
    :rtype: float
    :return: Y coordinate of output point
    :rtype: float