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      Plot labeled or unlabeled tic marks around a circular arc.


Calling Sequence

      rtics, a1, a2, da, r1, r2, [rl, lb, sz, flg]


      a1, a2, da = tic mark start angle, end angle, step in
          (deg CCW from X axis).
      r1, r2 = start and end radii of tic marks. in
      rl = label radius. in
      lb = string array of labels. in
      sz = Text size. in
      flg = label angle flag. in
            0: read from outside circle (def),
            1: read labels from inside circle.

Keyword Parameters


        X0=x, Y0=y. Offsets for center of circle.
        /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).
        THICKNESS=t line thickness (scalar or array).


Common Blocks


Modification History

      Written by R. Sterner, 12 July, 1988.
      RES 18 July, 88 --- added reverse labels flag.
      Johns Hopkins University Applied Physics Laboratory.
      RES 15 Sep, 1989 --- converted to SUN.
      R. Sterner, 2006 Jun 26 --- Added color=c, linestyle=s, thickness=t,
      /device, /data, /norm.
  Copyright (C) 1988, 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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