; DOWIDTH
;---------------------------------------------------------------
;! selects solution for widths of model components
;# ADVERB ANALYSIS
;-----------------------------------------------------------------------
;;  Copyright (C) 1995, 2020
;;  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
;-----------------------------------------------------------------------
;---------------------------------------------------------------
DOWIDTH   LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
DOWIDTH
Type  Adverb   (Logical(3,4),  > 0  =>  true)
Use:  A logical array, dimension (3,4), associated with GWIDTH,
      the initial guess of the (Major axis, Minor axis, Position
      angle) of the component.  Units are in (pixels, pixels,
      deg).  >0 -> Let parameter vary; <=0 -> Keep parameter fixed
Null Value:  true (all 1).
Tasks:
   IMFIT.........Fits Gaussians to portions of an image.  Returns in
                 DOWIDTH the error bars in the fit.
   JMFIT.........Fits Gaussians to portions of an image.  Returns in
                 DOWIDTH the error bars in the fit.
   SAD...........Finds and fits Gaussians to portions of an image.
   SLFIT.........Task to fit gaussians to slice data.  Returns in
                 DOWIDTH the error bars in the fit.
   TVSAD.........Finds and fits Gaussians to portions of an image with
                 interaction.
   UVFIT.........Fits source models to uv data.  DOWIDTH is used only
                 if INLIST is blank.
   UVGIT.........Fits source models to uv data.  DOWIDTH is used only
                 if INLIST is blank.
----------------------------------------------------------------
