CONVEXIFICATION Compute the convexification of a polygon.

   CO = convexification(H)
   Creates convexification from support function. Support function is
   supposed to be uniformly distributed over [0 2pi].

   CO = convexification(POLYGON)
   Computes support function of the polygon, then the corresponding
   convexification.

   CO = convexification(POLYGON, N)
   Uses N points for convexification computation. Note that the number of
   points of CO can be lower than N.
   
   CAUTION: The result will be valid only for convex polygons.

   See also
   polygons2d, supportFunction 

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 author: David Legland 
 created the 12/01/2005.
 Copyright 2010 INRA - Cepia Software Platform.

Package: matgeom