globalmapper.GetLocationElevation
=================================

.. currentmodule:: globalmapper
.. py:function:: GetLocationElevation (GM_LayerHandle_t32 aLayer, float aXCoord, float aYCoord) -> GM_Error_t32, float

    Retrieves the elevation at a given location from a provided layer or from the list of currently loaded elevation
    layers (topmost elevation layer first).

    :param GM_LayerHandle_t32 aLayer: Layer to get elevation from or gm.NULL for topmost
    :param float aXCoord: X coord in current projection
    :param float aYCoord: Y coord in current projection
    :returns: Error Code
    :rtype: GM_Error_t32
    :return: Elevation at location in meters
    :rtype: float