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<h3><img alt="" src="../sun.gif" width="100" height="98" align=
"middle"> SAOImageDS9 Reference Manual</h3>
<blockquote>
<p>DS9 is the next version of the popular <a href=
"http://hea-www.harvard.edu/RD/saotng/">SAOtng</a> display program.
It is a Tk/Tcl application which utilizes the TkSAO widget set. It
also incorporates the new X Public Access (<a href=
"http://hea-www.harvard.edu/RD/xpa/">XPA</a>) mechanism to allow
external processes to access and control its data, GUI functions,
and algorithms. DS9 supports the direct display of FITS
images and binary tables, multiple frame buffers, region cursor
manipulation, many scale algorithms and colormaps, and easy
communication with external analysis tasks. It is highly
configurable and extensible to meet the evolving needs of the
astronomical community.</p>
<p>DS9 supports advanced features such as multiple frame buffers,
mosaic images, tiling, blinking, geometric markers, colormap
manipulation, scaling, arbitrary zoom, rotation, pan, and a variety
of coordinate systems (including Image, Physical, Detector, and
WCS). DS9 also supports FTP and HTTP access. The GUI for DS9 is
user configurable.</p>
<table width="75%" height="25%" cellspacing="2" cellpadding="4"
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<tr>
<td valign="middle" align="center"><a href="how.html">How It
Works</a></td>
<td valign="top" align="center"><a href="backup.html">Backup and
Restore</a></td>
<td valign="middle" align="center"><a href="file.html">File
Formats</a></td>
</tr>
<tr>
<td valign="middle" align="center"><a href="keyboard.html">Mouse
and Keyboard</a></td>
<td valign="top" align="center"><a href="grid.html">Coordinate
Grids</a></td>
<td valign="middle" align="center"><a href=
"prefs.html">Preferences</a></td>
</tr>
<tr>
<td valign="middle" align="center"><a href="command.html">Command
Line Options</a></td>
<td valign="top" align="center"><a href=
"catalog.html">Catalogs</a></td>
<td valign="middle" align="center"><a href="3d.html">3-D
Frames</a></td>
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<td valign="middle" align="center"><a href="xpa.html">XPA Access
Points</a></td>
<td valign="top" align="center"><a href=
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<td valign="middle" align="center"><a href=
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<td valign="top" align="center"><a href="iraf.html">IRAF
Support</a></td>
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<td valign="middle" align="center"><a href=
"region.html">Regions</a></td>
<td valign="top" align="center"><a href=
"analysis.html">Analysis</a></td>
<td valign="middle" align="center"><a href=
"bin.html">Binning</a><br></td>
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