Name

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      IMG_CPOLY

Purpose

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      Plot a transparent color polygon on an image.

Category

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Calling Sequence

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      img_cpoly, px, py, [img]

Inputs

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      px, py = X and Y arrays of polygon points. in
      img = Optional image to use (def=current). in

Keyword Parameters

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Keywords

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        /DEVICE px,py are in device coordinates.
        /DATA px,py are in data coordinates (default).
          Polygons are not clipped to the plot window.
        /NORM px,py are in normalized coordinates.
        COLOR=clr Polygon color (def=yellow).
        /NODISPLAY Do not display result. If img is not
          given the current screen image will be used and
          updated by default. If img is given the updated
          version will not be displayed.
        /DISP Display updated image. Needed if img is given.

Outputs

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Common Blocks

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Notes

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Modification History

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      R. Sterner, 2007 Apr 09
  Copyright (C) 2007, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.