@@ -24,7 +24,355 @@ you must <em>not</em> upgrade the ISIS Data Files!!!
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<h2>Overview</h2>
<p> INSERT NEW INSTRUCTIONS FOR HOW TO INSTALL ISIS3 USING CMAKE HERE OR LINK TO THE INSTRUCTIONS ON GITHUB. </p>
<h3>Operating System Requirements</h3>
<p>ISIS runs on many UNIX variants. ISIS does not run on MS Windows. The UNIX variants supported are listed here:</p>
<ul>
<li>Ubuntu 18.04 LTS</li>
<li>Mac OS X 10.13.6 High Sierra</li>
<li>CentOS Linux 7.2.1511</li>
<li>Fedora 28</li>
</ul>
<h3>Hardware Requirements</h3>
<p>Here are the minimum hardware requirements</p>
<ul>
<li>64-bit (x86) processors</li>
<li>2 GB memory</li>
<li>10 GB to 180 GB disk space for ISIS installation</li>
<li>10 GB to many TB disk space for processing images</li>
<li>A quality graphics card</li>
</ul>
<p>Note: More processors, memory, disk storage, and an additional graphcis card (to support the use of two monitors at
one time) may be useful depending on the complexity of your processing requirements
</p>
<h3>Mission Requirements</h3>
<p>ISIS 3 supports many planetary missions; in fact, over 40 different instruments including some
flown as early as the 1960s. Ancillary data are required to process images from these instruments. For example, translation
definition files to help convert from PDS format to ISIS cubes, dark current and flat file images for radiometric
calibration, and large quantities of SPICE files (spacecraft pointing and position) for map projecting images.
If you plan to work with data from all missions, then the download will require about 180 GB for all the ancillary data.
However, most of this volume is taken up by SPICE files. We have a SPICE Web service that can be used in lieu of downloading all of the
SPICE files which can reduce the download size to 10 GB. When downloading ISIS, you will have the option of
choosing which mission data to acquire as well as if you only want the translation and calibration files and not
SPICE files.
</p>
<h3>DTM Requirements</h3>
<p>The strength of ISIS 3 strength lies in its capabilities for planetary cartography.
The image orthorectification process is improved if a digital
terrain model (DTM) is used. The DTMs can be quite large and take some time to download. They exist for
many planetary bodies (e.g., the Moon, Mars, etc.). Therefore, there are options for selecting which DTMs to download
if you are only working with a particular target body.
</p>
<p>To build and compile ISIS 3 requires following the instructions listed below, which are given on
the GitHub wiki page for the ISIS 3 project:
<ul>
<li><ahref="https://github.com/USGS-Astrogeology/ISIS3/wiki/Building-ISIS3-with-cmake#getting-started-with-github">Getting Started With GitHub</a></li>
<li><ahref="https://github.com/USGS-Astrogeology/ISIS3/wiki/Building-ISIS3-with-cmake#anaconda-and-isis3-dependencies">Installing Anaconda and satisfying ISIS 3 Dependencies</a></li>
<li><ahref="https://github.com/USGS-Astrogeology/ISIS3/wiki/Building-ISIS3-with-cmake#building-isis3">Building ISIS 3 With cmake</a></li>
<li><ahref="https://github.com/USGS-Astrogeology/ISIS3/wiki/Building-ISIS3-with-cmake#new-environmental-variable-meanings">New ISIS 3 environmental variables and their meanings</a></li>
<li><ahref="https://github.com/USGS-Astrogeology/ISIS3/wiki/Building-ISIS3-with-cmake#custom-data-and-test-data-directories">Custom data and test directories</a></li>