Thiessen
========

.. code-block:: python

    from girs.feat.layers import thiessen
    thiessen('D:/tmp/thpoints.shp', 'D:/tmp/DEU_adm_shp/DEU_adm4_thiessen0.shp')
    thiessen('D:/tmp/thpoints.shp', 'D:/tmp/DEU_adm_shp/DEU_adm4_thiessen1.shp', 
	         clip_region='D:/tmp/DEU_adm_shp/DEU_adm4_diss1.shp')
    thiessen('D:/tmp/thpoints.shp', 'D:/tmp/DEU_adm_shp/DEU_adm4_thiessen2.shp',
             envelope=LayersReader('D:/tmp/DEU_adm_shp/DEU_adm4_diss1.shp').get_extent())

.. _thiessen:

.. figure:: images/thiessen.jpg
    :width: 500pt