; IMPOS ;--------------------------------------------------------------- ;! displays celestial coordinates selected by the TV cursor ;# Verb TV Catalog ;----------------------------------------------------------------------- ;; Copyright (C) 1995, 2003 ;; 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 ;----------------------------------------------------------------------- IMPOS LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC IMPOS: Verb to determine the absolute coordinates under cursor No inputs @ Output adverb TVBUT @ Value of button(s) pushed. COORDINA @ Celestial coordinate found ---------------------------------------------------------------- IMPOS Type: verb Use: Read a celestial position from a TV image using cursor; Print result on terminal and in log. Input adverbs: none Output adverbs: TVBUT.......Value of button(s) pushed: 1, 2, 4, or 8 are likely but combinations may be possible. COORDINA....The X and Y coordinates are found as: Xpos = abs(CO(1)) + abs(CO(2))/60 + abs(CO(3))/3600 if any of CO(1), CO(2), CO(3) < 0: Xpos = -Xpos Ypos = abs(CO(4)) + abs(CO(5))/60 + abs(CO(6))/3600 if any of CO(4), CO(5), CO(6) < 0: Ypos = -Ypos Note that, although these are most suited to RA, Dec in sexagesimal notation, they can be used for any type of coordinate. The units are standard FITS units (e.g degrees, m/sec, Hz, sec, etc.) except that right ascensions are in hours of time. ----------------------------------------------------------------