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g2root(1) - g2root - convert GEANT geomtry files to ROOT files - man 1 g2root

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G2ROOT(1)                                                            G2ROOT(1)



NAME
       g2root - convert GEANT geomtry files to ROOT files

SYNOPSIS
       g2rootd [-f map_name] geant_name macro_name

DESCRIPTION
       You          can          convert          a         GEANT         (see
       http://wwwinfo.cern.ch/asd/geant/index.html fore more on GEANT)  geome-
       try to ROOT geometry with the following steps

       1      Run the interactive version(1,3,5) of GEANT and produce a Zebra RZ file(1,n)
              detector.geom, by typing the command:

              Geant > rz/file(1,n) 21 detector.geom on


       2      Run the g2root program to convert the Zebra RZ file(1,n) into a  ROOT
              macro detector.C:

              g2root detector.geom detector.C


       3      Run the following ROOT session;

              root [1] .x detector.C
              root [2] detector.Draw()
              root [3] c1.x3d()   // (this invokes the 3-d Root viewver)
              root [4] TFile f("detector.root","NEW") //open(2,3,n) a new root file(1,n)
              root [5] detector.Write() //Write the geometry structure
              root [6] f.Write()

       Note  that  the TNode structure currently in(1,8) ROOT was not designed as a
       replacement for a true geometry package. The idea was  mainly  to  draw
       simple  geometries in(1,8) event display programs. We are currently investi-
       gating several alternatives for a true  &  efficient  geometry  package
       supporting;

       -      a disk data base with storage of multiple geometry versions

       -      an interactive editor and viewer

       -      with 3-d views

       -      but also 2-d cut views

       -      with  interfaces  to  existing  or  future  MC such as GEANT3 or
              GEANT4

       A        second        program        called        gh2root        (see
       http://root.cern.ch/root/gh2root.html) generates automatically C++ code
       corresponding to the GEANT3 Zebra structures JSET, JVERTX, JKINE, JHITS
       and JDIGI.

SEE ALSO
              root(1), h2root(1),
       and
              The ROOT Users Guide
       avaliable from the main ROOT website:
              http://root.cern.ch

ORIGINAL AUTHORS
       The ROOT team (see web page above):
              Rene Brun and Fons Rademakers

COPYRIGHT
       ROOT Software Terms and Conditions

       The  authors  hereby grant permission to use, copy, and distribute this
       software and its documentation for any purpose, provided that  existing
       copyright  notices  are  retained in(1,8) all copies and that this notice is
       included verbatim in(1,8) any distributions. Additionally, the authors grant
       permission  to  modify this software and its documentation for any pur-
       pose, provided that such modifications are not distributed without  the
       explicit consent of the authors and that existing copyright notices are
       retained in(1,8) all copies. Users of the software are asked  to  feed  back
       problems,  benefits,  and/or suggestions about the software to the ROOT
       Development Team (rootdev@root.cern.ch). Support for  this  software  -
       fixing  of  bugs,  incorporation  of  new  features - is done on a best
       effort basis. All bug fixes and enhancements  will  be  made  available
       under the same terms and conditions as the original software,

       IN  NO  EVENT  SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
       FOR DIRECT, INDIRECT, SPECIAL,  INCIDENTAL,  OR  CONSEQUENTIAL  DAMAGES
       ARISING  OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY DE-
       RIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE  POSSI-
       BILITY OF SUCH DAMAGE.

       THE  AUTHORS  AND  DISTRIBUTORS  SPECIFICALLY  DISCLAIM ANY WARRANTIES,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF  MERCHANTABIL-
       ITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFT-
       WARE IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND  DISTRIBUTORS
       HAVE  NO  OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCE-
       MENTS, OR MODIFICATIONS.

AUTHOR
       This  manual  page  was   written   by   Christian   Holm   Christensen
       <cholm@nbi.dk>,  for  the  Debian  GNU/Linux system (but may be used by
       others).



ROOT                               Version 3                         G2ROOT(1)

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