globalmapper.SpatialCentroid
============================

.. currentmodule:: globalmapper
.. py:function:: SpatialCentroid (GM_LayerHandle_t32 aLayer, GM_SpatialOps_Params_t aParams, GM_FeatureGrouping_t8 aGrouping, str aStr) -> GM_Error_t32

	The **Centroid** spatial transform creates a new layer with a point at the geometric center of the given area
	feature(s). The *aGrouping* parameter defines whether points should be created for every area in the layer, for
	feature groups by attribute, or one for the entire layer.

	:param GM_LayerHandle_t32 aLayer: Input layer
	:param GM_SpatialOps_Params_t aParams: Parameters
	:param GM_FeatureGrouping_t8 aGrouping: Grouping type
	:param str aStr: The attribute list string; may be an empty string
	:returns: Error Code
	:rtype: GM_Error_t32