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Forum: Geometry
Re: None Size limit for geometry (Marion Bug)
Re: None Re: Size limit for geometry (John Apostolakis)
Date: 28 Jun, 2010
From: Marion Bug <Marion Bug>

Dear John,

I think I am already doing what you suggested as follows:

G4double fWorldLength = 150. *nm;
G4cout << "Computed tolerance = "
      << G4GeometryTolerance::GetInstance()->GetSurfaceTolerance()/nm
      << " nm" 
      << G4GeometryTolerance::GetInstance()->GetRadialTolerance()/nm
      << " nm" <<G4endl;

With this, the surface tolerance is 1.5e-09 nm, the radial tolerance 0.001 nm, which should be fine for volumes with sizes of 0.5 nm.

However, I still cannot see those volumes in the OGLIX.

Since the computer on which Geant4 is running is hosted by our IT-department, I am waiting for them to install DAWN - which Sebastien suggested.

Please let me know if I need to set anything else.

thank you, Marion

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