Re: Reading in TGeo objects from file, using geomRootToGeant4 and getting "No elements defined"

From: Brett Viren <bv_at_bnl.gov>
Date: Thu, 3 May 2012 10:09:06 -0400

Ivana Hrivnacova <Ivana.Hrivnacova_at_cern.ch> writes:

> I am not able to reproduce the problem.
> Can you limit your geometry to just a few materials and volumes,
> export it in a Root file and test it within one VMC example where you
> replace the ConctructGeometry function with:
> TGeoManager::Import("geometry.root");
> gMC->SetRootGeometry();
> Send me then your code used for building geometry and your geometry
> Root file.
> Also let me know your versions of Root, VGM and Geant4 VMC.

Okay, thanks, will do. I was hopping I was just making a simple, high-level misstep. I'll make a version of Ex06 that uses a pre-made geometry as you suggest. Here is a copy of the current geometry I'm working with:

  http://www.phy.bnl.gov/~bviren/wbls/example-geo.root

It is an assembly of three long, concentric cylinders capped at both ends with an assembly of three layers of flat cylinders.

Installation of the dependencies was done with:

  https://github.com/brettviren/WbLS/blob/master/people/bv/inst.sh

I tried to pick the newest releases of everything as of a few weeks ago. Specifically, the versioned URLs I used are:

   http://www.cmake.org/files/v2.8/cmake-2.8.7.tar.gz
   http://python.org/ftp/python/2.7.2/Python-2.7.2.tgz
   http://archive.ipython.org/release/0.12/ipython-0.12.tar.gz
   http://geant4.cern.ch/support/source/geant4.9.5.p01.tar.gz
   http://downloads.sourceforge.net/project/boost/boost/1.49.0/boost_1_49_0.tar.gz
   ftp://root.cern.ch/root/root_v5.32.02.source.tar.gz

   ftp://root.cern.ch/root/vmc/geant4_vmc.2.13a.tar.gz    https://vgm.svn.sourceforge.net/svnroot/vgm/tags/v3-05/vgm

Please let me know if you spot any obvious incompatibilities.

-Brett.

Received on Thu May 03 2012 - 16:09:13 CEST