; TVWEDGE
;---------------------------------------------------------------
;! Show a linear wedge on the TV
;# VERB TV
;-----------------------------------------------------------------------
;;  Copyright (C) 1995
;;  Associated Universities, Inc. Washington DC, USA.
;;
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;;
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;;  GNU General Public License for more details.
;;
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;-----------------------------------------------------------------------
;---------------------------------------------------------------
TVWEDGE   LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
TVWEDGE:  Verb to load a step wedge of image intensities as
          previously loaded (shows only the map values actually
          loaded).
              No inputs
              Optional immediate argument gives width of wedge
                 in pixels (default 16).  If argument < 0,
                 program uses TV cursor to determine where to
                 put wedge (default below bottom or above top
                 of image).
              Uses TV cursor to select the image with which
                 the wedge is associated (if needed).
----------------------------------------------------------------
TVWEDGE
Type:  Verb
Use:   To load a linear wedge into a TV memory plane using the
       same transfer function and clipping used in loading the
       associated image.  TVWEDGE constructs the wedge with
       intensities from the PIXRANGE(1) to PIXRANGE(2) used in
       loading the image to the TV.  If there is more than one
       image on the TV, the routine asks the user to point out
       the image with which the wedge is to be associated.
       There is an optional imediate argument:
               IMPWEDGE (n)
       If n is missing, use n=16, where n is the width of the
       wedge in pixels.  If n<0 use abs(n) as the width of the
       wedge and ask the user to indicate where to draw the
       wedge.  The default locations of the wedge are:
       (a) If there is only one image visible, far enough below
       or above the image to allow for complete labeling, (b)
       just below the image (if it will fit), (c) above the
       image (if it will fit), and (d) overlaying the bottom
       rows of the image.
Adverbs:     None
----------------------------------------------------------------
