GET SHAPES EXTENTS
==================

Description
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This algorithm draws new polygons according to the extent of the layer features. You can choose to draw either a new 
polygon for each features or just a single polygon of the total extent (in this case the input layer has to be a 
multipart layer).

Parameters
----------

- ``Shapes[Vector]``: input layer
- ``Parts[Boolean]``: YES draws a polygon for each feature, NO draws only one polygon 

Outputs
-------

- ``Extents[Vector]``: the resulting layer

See also
---------


Console usage
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::

	sextante.runalg('saga:getshapesextents', shapes, parts, extents)