XFITSview ver. 1.3

   XFITSview is a viewer for FITS format images for unix/X-Windows
systems.  XFITSview will display images allowing zooming, scrolling,
modifying the brightness, contrast and color and allow determination
of celestial positions in the image.  Positions and brightnesses of
selected pixels may be logged to a text file.  Specified positions in
the image may be marked.  Images may be compared by "blinking" them
and 3 dimensional images may be viewed in the form of a movie.  The
program contains extensive online documentation.  Blanked pixels and
all defined FITS image data types are supported.  Normal or gzip
compressed files may be used.  XFITSview features support of Digitized
Sky Survey (DSS) coordinates as well as the standard World Coordinate
System (WCS). 

   New Features:
   --- --------
Version 1.1 gives better support to images with DSS coordinates.

Version 1.3 runs on 24 bit true color visuals

   XFITSview is distributed as both source and selected executables.
Building XFITSview requires an ansi c compiler and the Motif library
for X-Windows.   The LessTif (freeware) library can be substituted for 
Motif. The source distribution is in file:
XFITSview1.3.tar.gz
which is a gzip compressed unix tar archive.  Uncompress the file with:
% gunzip XFITSview1.3.tar.gz
and expand the archive with:
% tar xvf XFITSview1.3.tar
Installation instructions are in the XFITSview/README file.

   Selected executables are available.  However, most are linked
aginst dynamic libraries and may not execute if these libraries are
absent or the loader can't find them.  At present the following are
available: 

   XFITSview.sunos     Sun 4.2 (currently ver 1.2)
   XFITSview.sunos.static  Sun 4.2 statically linked (currently ver 1.2)
   XFITSview.solaris   Sun solaris ver 1.3
   XFITSview.linux.aout   (ver. 0.3) Linux a.out-format (motif statically linked)
   XFITSview.linux     Linux (motif statically linked) ver 1.3
   XFITSview.IBM       IBM AIX for RS/6000 ver 1.3
   XFITSview.SGI       Silicon Graphics (currently ver 1.2)
   XFITSview.alpha     Dec Alpha OSF/1 = Digital Unix ver 1.3
   XFITSview.HP        Hewett Packard; provided Peter Mueller, MPIfR,Bonn FRG
                       (currently ver. 1.0)

Notes: 
- SGI has trouble displaying on SunOS displays
- If your browser wants to display an executable in a text window
rather than doing something sensible like putting it in a file; 
hold the shift key down when you click on the item and this will
generally cause the browser to write the item in a file.

   A pair of test gzip compressed FITS files, (ngc1316o.fit.gz and
ngc1316r.fit.gz), with a documentation file, ngc1316.doc, contain
optical and radio images of the field around NGC 1316 suitable for
blinking.  (Note: the radio image is dominated by a strong point
source.) 

  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.