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      Plot specified ellipse on the current plot device.


Calling Sequence

      plot_ellipse, a, b, tilt, a1, a2, [x0, y0]


      a = semi-major axis of ellipse (data units). in
      b = semi-minor axis of ellipse (data units). in
      [tilt] = angle of major axis (deg CCW from X axis, def=0). in
      [a1] = Start angle of arc (deg CCW from major axis, def=0). in
      [a2] = End angle of arc (deg CCW from major axis, def=360). in
      [x0, y0] = optional arc center (def=0,0). in

Keyword Parameters


        /DEVICE means use device coordinates.
        /DATA means use data coordinates (default).
        /NORM means use normalized coordinates.
        COLOR=c plot color (scalar or array).
        LINESTYLE=l linestyle (scalar or array).


Common Blocks


      Notes: all parameters may be scalars or arrays.

Modification History

      David P Steele, ISR, 27 Oct. 1994: modified from ARCS.PRO by R. Sterner.
      Department of Physics and Astronomy
      The University of Calgary
      R. Sterner, 2010 May 04 --- Converted arrays from () to [].
      R. Sterner, 2012 Sep 27 --- Renamed from ellipse.
  Copyright (C) 1994, 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.

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