; TVPSEUDO
;---------------------------------------------------------------
;! Verb to activate three types of pseudo-color displays
;# Verb TV
;-----------------------------------------------------------------------
;;  Copyright (C) 1995
;;  Associated Universities, Inc. Washington DC, USA.
;;
;;  This program is free software; you can redistribute it and/or
;;  modify it under the terms of the GNU General Public License as
;;  published by the Free Software Foundation; either version 2 of
;;  the License, or (at your option) any later version.
;;
;;  This program is distributed in the hope that it will be useful,
;;  but WITHOUT ANY WARRANTY; without even the implied warranty of
;;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;  GNU General Public License for more details.
;;
;;  You should have received a copy of the GNU General Public
;;  License along with this program; if not, write to the Free
;;  Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
;;  MA 02139, USA.
;;
;;  Correspondence concerning AIPS should be addressed as follows:
;;         Internet email: aipsmail@nrao.edu.
;;         Postal address: AIPS Project Office
;;                         National Radio Astronomy Observatory
;;                         520 Edgemont Road
;;                         Charlottesville, VA 22903-2475 USA
;-----------------------------------------------------------------------
;---------------------------------------------------------------
TVPSEUDO  LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
TVPSEUDO:  Verb to activate three types of pseudo-color displays
TVLEVS          0.0      1024.0    Peak intensity at OFM
          Instructions will appear on terminal.
----------------------------------------------------------------
TVPSEUDO
Type:  Verb
Use:   Interactive function to pseudo color the sum of
       all visible TV images.  Three methods are available.

       Press Button A for "RGB triangles" formed by linearly
       decreasing the first color from max to min while
       increasing the second color from min to max.  Then the
       second color is decreased from max to min while the third
       color is increased from min to max. The cursor X position
       sets the input intensity which separates these two
       regimes.  The cursor Y position sets the color correction
       power gamma (0 to 4). Hit button A to cycle the selection
       of the color order: BGR, GRB, RBG, RGB, GBR, and BRG.

       Hit button B to form colors from circles of maximum
       saturation, fixed intensity, and varying hue in the hue -
       intensity - saturation space.  The cursor X position sets
       the number of circles (1 - 8) to span the range of
       intensities from 0 to TVLEVS-1. The cursor Y postion sets
       the starting hue.

       Press button C to get a choice of color contours as fixed
       sequences of colors.  The choices are 9-level sequence
       designed by Renzo Sanchisi and the AIPS programmers, a
       10-level sequnce from GYPSY, and 8-level and 64-level
       (spectrum) sequences from IMPS.  The cursor X position
       sets the intensity at which contours begin, while the
       cursor Y position sets the range of intensities actually
       contoured.  Intensities below the range are given the
       starting color and intensities above the range are given
       the ending color.

       Press button D to exit.
Adverbs:
  TVLEVS....Specifies the maximum intensity expected for the sum
            of all visible, overlapped images.  Usually 256,
            512, 768, or 1024.
----------------------------------------------------------------
