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Forum: Persistency
Re: Question G4Exception issued by G4GDMLWriteParamvol::ParametersWrite() (Neal Gauvin)
Date: 11 May, 2017
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Neal,

I suggest you file a problem report in Bugzilla:
  https://bugzilla-geant4.kek.jp/enter_bug.cgi?product=Geant4
providing possibly a test case for reproducing the problem.

Thanks,
Gabriele

-----------------
On Tue, 09 May 2017 14:55:56 GMT, Neal Gauvin wrote:
> Hi,
> 
> I am trying to export the geometry of a detector in GDML following the examples/extended/persistency/gdml/G01 example. Thus simply adding :
> 
>        std::string GDML_export_file = "Geometry.gdml";
>         parser.SetRegionExport(true);
>         parser.Write(GDML_export_file,
> G4TransportationManager::GetTransportationManager()
>                          ->GetNavigatorForTracking()
>                          ->GetWorldVolume()
>                          ->GetLogicalVolume());
> 
> after setting the run manager, as described in the example.
> 
> When running the application, I get the following error :
> 
> -------- EEEE ------- G4Exception-START -------- EEEE -------
> *** G4Exception : InvalidSetup
>       issued by : G4GDMLWriteParamvol::ParametersWrite()
> Solid 'Bump' cannot be used in parameterised volume!
> *** Fatal Exception *** core dump ***
> -------- EEEE -------- G4Exception-END --------- EEEE -------
> 
> *** G4Exception: Aborting execution ***
> Aborted (core dumped)
> 
> 'Bump' is a G4UnionSolid between a Sphere and a Tube, placed a different position through parametrization (G4VPVParameterisation). According to the GDML manual, parametrization in space is handled properly.
> 
> Can somebody explain me this error ?
> 
> Thanks,
> 
> Neal 
> 

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