; TVDIST ;--------------------------------------------------------------- ;! determines spherical distance between two pixels on TV screen ;# procedure Analysis Catalog TV ;----------------------------------------------------------------------- ;; Copyright (C) 2003, 2009, 2013 ;; 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 ;----------------------------------------------------------------------- TVDIST LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC TVDIST: Determines spherical distance between 2 pixels on TV @ output adverbs INNAME @ Image name(name). INCLASS @ Image name(class). INSEQ @ 0.0 9999.0 Image name(seq. #). 0=>high INDISK @ 0.0 9.0 Disk drive #. 0=>any PIXXY @ 0.0 16384.0 (X,Y,...) pixel in image IN2NAME @ Second image name(name). IN2CLASS @ Second image name(class). IN2SEQ @ 0.0 9999.0 Second image seq #. IN2DISK @ 0.0 9.0 Second Disk drive #. PIX2XY @ 0.0 16384.0 (X,Y,...) pixel in image DIST @ Separation in degrees ---------------------------------------------------------------- TVDIST Type: Procedure Use: TVDIST asks the user to point out the end of the line between two points on the TV and then the beginning. It then invokes IMDIST to determine the spherical angular distance between the points. Note that the TV can display more than one image at a time so that the two points may be from two different images. Adverbs (input): none Output adverbs: First image pixel INNAME......Image name(name). Standard defaults. INCLASS.....Image name(class). Standard defaults. INSEQ.......Image name(seq. #). 0 => highest. INDISK......Disk drive # of image. 0 => any. PIXXY.......(X,Y,...) pixel location in image. NOT zero on the X and Y axes anyway. Second image pixel IN2NAME.....Image name(name). ' ' -> use 1st image IN2CLASS....Image name(class). ' ' -> use 1st image IN2SEQ......Image name(seq. #). 0 -> use 1st image IN2DISK.....Disk drive # of image. 0 -> use 1st image PIX2XY......(X,Y,...) pixel location in image. NOT zero on the X and Y axes anyway. DIST........Distance between pixels in degrees. ----------------------------------------------------------------