This directory contains all the geometry  classes.
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 Several documents describing these classes are listed below:
<ul>
<li>The main geometry class is documented in class TGeoManager.</li>
<li><a href="ftp://root.cern.ch/root/doc/18Geometry.pdf">The Chapter about the TGeo classes in the Users Guide
    </a></li>
<li><a href="ftp://root.cern.ch/root/R2002/GeoMod.pdf">Presentation at ROOT 2002
    </a></li>
<li><a href="http://www.slac.stanford.edu/econf/C0303241/proc/papers/THMT001.PDF">Presentation/article at CHEP'03
    </a></li>
<li><a href="http://www.slac.stanford.edu/BFROOT/www/Computing/Distributed/ROOT2004/files/gheata.ppt">Presentation at ROOT 2004
    </a></li>
<li><a href="http://indico.cern.ch/getFile.py/access?contribId=s1t14&sessionId=1&resId=1&materialId=0&confId=a055638">Presentation at ROOT 2005
    </a></li>
<li><a href="http://indico.cern.ch/materialDisplay.py?contribId=35&materialId=slides&confId=13356">Presentation at ROOT 2007
    </a></li>
    
</ul>
See also <a href="http://aliweb.cern.ch/Offline/Activities/Geometry/index.html">the use of the geometry
classes in AliROOT package of ALICE</a>.
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