|Message: How to determine the volume from position?||Not Logged In (login)|
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I would like to generate my particles in given (complex) volume. In the function PrimaryGeneratorAction::GeneratePrimaries I randomly pick the coordinates, but I need to find the method to check whether that position is inside my volume (it is very complicated to do with if-then combinations). I would like to do this before I generate the primary vertex. I tried this:
G4int X = G4UniformRand(); G4int Y = G4UniformRand(); G4int Z = G4UniformRand(); G4StepPoint mypoint; mypoint.SetPosition(G4ThreeVector(X,Y,Z)); G4VPhysicalVolume* myvolume = mypoint.GetPhysicalVolume();
But the program crashes when I try to read out some information about the volume:
G4cout << myvolume->GetName() << G4endl;
Does anyone has some ideas?
Thank you in advance, Nikola
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