1G2ROOT(1)                   General Commands Manual                  G2ROOT(1)
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NAME

6       g2root - convert GEANT geomtry files to ROOT files
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SYNOPSIS

9       g2rootd [-f map_name] geant_name macro_name
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DESCRIPTION

12       You          can          convert          a         GEANT         (see
13       http://wwwinfo.cern.ch/asd/geant/index.html fore more on GEANT)  geome‐
14       try to ROOT geometry with the following steps
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16       1      Run the interactive version of GEANT and produce a Zebra RZ file
17              detector.geom, by typing the command:
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19              Geant > rz/file 21 detector.geom on
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21
22       2      Run the g2root program to convert the Zebra RZ file into a  ROOT
23              macro detector.C:
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25              g2root detector.geom detector.C
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27
28       3      Run the following ROOT session;
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30              root [1] .x detector.C
31              root [2] detector.Draw()
32              root [3] c1.x3d()   // (this invokes the 3-d Root viewver)
33              root [4] TFile f("detector.root","NEW") //open a new root file
34              root [5] detector.Write() //Write the geometry structure
35              root [6] f.Write()
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37       Note  that  the TNode structure currently in ROOT was not designed as a
38       replacement for a true geometry package. The idea was  mainly  to  draw
39       simple  geometries in event display programs. We are currently investi‐
40       gating several alternatives for a true  &  efficient  geometry  package
41       supporting;
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43       -      a disk data base with storage of multiple geometry versions
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45       -      an interactive editor and viewer
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47       -      with 3-d views
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49       -      but also 2-d cut views
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51       -      with  interfaces  to  existing  or  future  MC such as GEANT3 or
52              GEANT4
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54       A        second        program        called        gh2root        (see
55       http://root.cern.ch/root/gh2root.html) generates automatically C++ code
56       corresponding to the GEANT3 Zebra structures JSET, JVERTX, JKINE, JHITS
57       and JDIGI.
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SEE ALSO

60              root(1), h2root(1),
61       and
62              The ROOT Users Guide
63       avaliable from the main ROOT website:
64              http://root.cern.ch
65

ORIGINAL AUTHORS

67       The ROOT team (see web page above):
68              Rene Brun and Fons Rademakers
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71       This library is free software; you can redistribute it and/or modify it
72       under the terms of the GNU Lesser General Public License  as  published
73       by  the Free Software Foundation; either version 2.1 of the License, or
74       (at your option) any later version.
75
76       This library is distributed in the hope that it  will  be  useful,  but
77       WITHOUT  ANY  WARRANTY;  without  even  the  implied  warranty  of MER‐
78       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  GNU  Lesser
79       General Public License for more details.
80
81       You  should  have  received  a  copy  of  the GNU Lesser General Public
82       License along with this library; if not, write  to  the  Free  Software
83       Foundation,  Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301
84       USA
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AUTHOR

87       This  manual  page  was   written   by   Christian   Holm   Christensen
88       <cholm@nbi.dk>,  for  the  Debian  GNU/Linux system (but may be used by
89       others).
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93ROOT                               Version 3                         G2ROOT(1)
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