|Message: Dynamic Geometry whthin an event.||Not Logged In (login)|
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I'm trying to construct Dynamic Geometry whthin an event in my time- ^^^^^^^^^^^^^^^ dependent simulation. I notice 4.1.12 in "Geant4 User's Guide for Application Developers" also mentions Geant4 can handle dynamic geometry between two runs. There are some examples in which geometry varies between two runs(extended example TestEM5) or after a given number of events(advanced example HadronTherapy) via external commands (macro file). So my question is: (1)Is there any way to construct Dynamic Geometry whthin an event? (2)Can I add the following code (in 4.1.12) in UserStepAction to vary geometry in any step?
// Open geometry for the physical volume to be modified ... G4GeometryManager::OpenGeometry(physCalor); // Modify dimension of the solid ... physCalor->GetLogicalVolume()->GetSolid()->SetXHalfLength(12.5*cm); // Close geometry for the portion modified ... G4GeometryManager::CloseGeometry(physCalor);
I would be very grateful if someone give me some suggestion. Best regards, Kevin
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