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Forum: Geometry
Re: Question G4UnionSolid and G4SubtractionSolid causes Error (Matthias Ullrich)
Re: None Re: G4UnionSolid and G4SubtractionSolid causes Error (Dennis H. Wright)
Date: 06 May, 2011
From: Matthias Ullrich <Matthias Ullrich>

Hello, thanks for the fast reply.

I did have a closer look to the standard output, but it is the only error/warning. There is no earlier output:

"
/vis/viewer/set/autoRefresh true
/vis/viewer/refresh
ERROR: G4VSceneHandler::RequestPrimitives
  Polyhedron not available for link_1.
  This means it cannot be visualized on most systems.
  Contact the Visualization Coordinator.
"

When I change the first parameter from link_do from 10 to 9.9 everything is running fine: G4Trd* link_do = new G4Trd("link_do",9.9*mm ,5*mm ,5*mm,5*mm, 10*mm);

This may indicate a problem with the surfaces. However, if one changes G4Trd to G4Box everything is working fine. So there seem to be a problem with G4Trd within G4UnionSolid or G4SubtractionSolid.

Does any one have a proposal (except of changing the dimensions), as I would like to keep my geometry as correct as possible.

Thank you very much Cheers Matthias

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1 More: Re: G4UnionSolid and G4SubtractionSolid causes Error   (Gabriele Cosmo - 06 May, 2011)
(_ Idea: Re: G4UnionSolid and G4SubtractionSolid causes Error   (Matthias Ullrich - 06 May, 2011)
(_ More: Re: G4UnionSolid and G4SubtractionSolid causes Error   (Gabriele Cosmo - 06 May, 2011)
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