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)