; TVSPLIT ;--------------------------------------------------------------- ;! Compare two TV image planes, showing halves ;# VERB TV INTERACTIVE ;----------------------------------------------------------------------- ;; Copyright (C) 1995, 2008 ;; 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 ;----------------------------------------------------------------------- ;--------------------------------------------------------------- TVSPLIT LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC TVSPLIT: Verb which compares 2 TV planes, showing halves TVCHAN 0.0 16.0 1st TV channel TV2CHAN 0.0 16.0 2nd TV channel In split mode: Cursor position gives split point, button A selects enhance image A, button B selects enhance image B, button C increments the split mode and button D exits. In enhancement mode: Cursor X gives intercept, cursor Y gives slope, and button C reverses sign of slope. Buttons A and B select which channel to enhance next and button D returns verb to split mode. ---------------------------------------------------------------- TVSPLIT Type: Verb Use: To compare images on 2 planes of the TV by showing one on the left or top and the other on the right or bottom. While in normal mode: the cursor position controls the split point, button D causes the verb to quit, button C "increments" the split mode (switch which image is on left/top, switch between horizontal and vertical split, where possible0, and buttons A and B select an interactive image enhancement (just like TVTRANSF). Button A selects channel A and button B selects channel B to be enhanced. During the enhancement, the cursor X position controls the intercept and the cursor Y position controls the slope of the (linear) transfer function. Buttons A and B may be used to select enhancement of channels A and B, resp. Button C will switch the sign of the slope and Button D will return the verb to the split selection mode. Instructions to remind you of these things will appear on your terminal. Adverbs: TVCHAN.....Selects which channel is "channel A" TV2CHAN....Selects which channel is "channel B" If either are out of range, channels 1 and 2 are used. ----------------------------------------------------------------