globalmapper.SetExportCropAreas
===============================

.. currentmodule:: globalmapper
.. py:function:: SetExportCropAreas (GM_AreaFeature_t aAreaList, uint32 aNumAreas, GM_Projection_t aAreaProj) -> GM_Error_t32

    Sets the list of crop areas to use when exporting using the export functions. If you set a crop area, then any
    subsequent exports will be cropped to those areas. If you pass in None for the crop area list, the crop area list
    will reset and the default rectangle-based cropping will be used.

    :param GM_AreaFeature_t aAreaList: List of areas to crop to (use None to reset to default crop)
    :param uint32 aNumAreas: Number of areas in *aAreaList*
    :param GM_Projection_t aAreaProj: Projection system the area coordinates are in (use None for current projection)
    :returns: Error Code
    :rtype: GM_Error_t32