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      Plot a vertical line on a graph at specified x value.


Calling Sequence

      ver, x


      x = X value of vertical line. Scalar or array. in

Keyword Parameters


        /DEVICE means work in device coordinates.
        /NORMALIZED means work in normalized coordinates.
          Default is data coordinates.
        YRANGE=yran Optional Y range to use (def=all).
          Give yran=[ymin,ymax] in specified coordinate system.
        SHRINK=f Fraction to reduce vertical range (def=0).
          Useful to keep a grid from covering tick marks.
          Only for data coordinates and an array of single lines.
        LINESTYLE=s. Linestyle (def=!p.linestyle).
        COLOR=c. Line Color (def=!p.color).
        THICKNESS=thk Line thickness (def=!p.thick).
        FILL=clr Optional color to fill between line pairs.
          Fills between lines 0 and 1, 2 and 3, and so on.
        POINTER=pt Draw arrowhead pointers at top and bottom
          instead of lines. Arrowhead dimensions may be given as
          fraction of screen or plot window size, the value of
          pt is height, or [height, width]. For /pointer the
          default used is [.03,.03].
        /BOTTOM used with POINTER to plot bottom pointers only.
        /TOP used with POINTER to plot top pointers only.
        /OUT Keep pointers outside axes (Data coord only).


Common Blocks


      Note: see hor.

Modification History

      R. Sterner, 2 Aug, 1989.
      R. Sterner, 21 May, 1992 --- fixed for log Y axes.
      R. Sterner, 3 Nov, 1992 --- Added /device.
      R. Sterner, 27 Jan, 1993 --- dropped reference to array.
      R. Sterner 20 Jun, 1993 --- added /norm.
      R. Sterner 1994 Feb 2 --- Add THICK.
      R. Sterner, 1994 Jun 3 --- Added FILL.
      R. Sterner, 1994 Jun 16 --- Added POINTER.
      R. Sterner, 1997 Jul 11 --- Added /OUT.
      R. Sterner, 2005 Aug 19 --- Added YRANGE=yran.
      R. Sterner, 2005 Oct 13 --- Made loop indices long.
      R. Sterner, 2010 Oct 19 --- Converted arrays from () to [].
      R. Sterner, 2011 Apr 21 --- Fixed flaw with SHRINK=, new yy value.
  Copyright (C) 1989, 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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