; IMDIST ;--------------------------------------------------------------- ;! determines spherical distance between two pixels ;# Verb Analysis Catalog ;----------------------------------------------------------------------- ;; Copyright (C) 2003, 2005, 2009 ;; 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 ;----------------------------------------------------------------------- IMDIST LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC IMDIST: Verb to determine spherical distance between pixelsC 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 @ Output adverb DIST @ Separation in degrees ---------------------------------------------------------------- IMDIST Type: Verb Use: IMDIST uses two pixel coordinates from one or two images to determine the spherical angular distance between them. It displays the distance, the position angle and the RA and Dec shifts given by (RA2 - RA1) * COS(DEC1), (DEC2 - DEC1). Adverbs (input): 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 -> any. PIX2XY......(X,Y,...) pixel location in image. NOT zero on the X and Y axes anyway. Adverbs (output): DIST........Distance between pixels in degrees. ----------------------------------------------------------------