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MGH_POLYFILLG

MGH_POLYFILLG

Name


  MGH_POLYFILLG

Description


    Given a 2-D polygon and a rectangular grid, this function returns
    an array indicating the fraction (optionally the area) of each
    pixel inside the polygon.

Calling Sequence


    result = mgh_polyfillg(poly)

Positional Parameters


  poly (input, numeric [2,n] array)
    The polygon

Keyword Parameters


    XOUT, YOUT (input, 1-D or 2-D numeric arrays)
      Vertex positions for the grid.

Return Value


    The function returns a 2D array representing the fraction
    (optionally the area) of overlap between each pixel and the polygon.
###########################################################################
  Copyright (c) 2002-2015 NIWA:
  http://www.niwa.co.nz/
  Licensed under the MIT open source license:
  http://www.opensource.org/licenses/mit-license.php
###########################################################################

Modification History


    Mark Hadfield, 2002-08:
      Written
    Mark Hadfield, 2011-07:
      Forced some denominators to (double precision) floating point.
    Mark Hadfield, 2015-02:
      Updated source code.



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