; TRIANGLE ;--------------------------------------------------------------- ;! specifies closure triangles to be selected/deselected ;# ADVERB CALIBRATION ;----------------------------------------------------------------------- ;; 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 ;----------------------------------------------------------------------- ;--------------------------------------------------------------- TRIANGLE LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC ---------------------------------------------------------------- TRIANGLE Type: Adverb (REAL(50)) Use: Standard data selection adverb, used in conjunction with ANTENNAS and BASELINE to specify closure triangles. If closure triangles are being used, then up to 50 specific triangles may be specified. The i'th triangle is specified by a non-zero value of ANTENNAS(i), BASELINE(i), and TRIANGLE(i). If ANTENNAS(i) is non-zero but the other two corresponding entries are null, then all triangles containing ANTENNAS(i) are specified. Similarly for the case where only TRIANGLES(i) is null. The list of triangles is terminated by simultaneous null values in all three selection arrays. If any element of these three arrays is less than zero, then all triangles except those explicitly mentioned are selected. Null Value: 0 All null value means use all antennas. ----------------------------------------------------------------