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PK

PK

Name


      PK

Purpose


      Pick a set of points on a plot.

Category


Calling Sequence


      pk, x, y, ind

Inputs


      x,y = point coordinate arrays. in

Keyword Parameters


Keywords


        /NOMARK means don't mark selected points.
        XRANGE=xr Return x range of selected box.
        YRANGE=yr Return y range of selected box.
          Use to zoom plot:
          plot,x,y,xrange=xr,yrange=yr
        CODE=c box exit code: 4=normal exit, 2=alternate exit.

Outputs


      ind = array of indices of selected points. out
            ind = -1 if no points selected.

Common Blocks


      pk_com

Notes


Modification History


      R. Sterner, 16 Sep, 1992
  Copyright (C) 1992, 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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