|Message: Re: Proton Tracking||Not Logged In (login)|
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On Wed, 04 Aug 2010 22:33:44 GMT, e askan wrote:
> The code I am using is from the electromagnetic example TestEm5. What I did > was use the G4 User Limits classes, after defining them properly in > DetectorConstruction classes of course: > > G4double ustepMax = 0.0001*mm; G4double utrakMax = 5.050*cm; G4double > utimeMax = 1.E-3*s; G4double uekinMin = 0.; G4double urangMin = 0.; > > logicWorld->SetUserLimits(new G4UserLimits(ustepMax, > utrakMax, > utimeMax, > uekinMin, > urangMin)); > > but when I use this SetUserLimits method to change the step size and > then show the result with steppingverbose showing the step lengths and > resulting positions, nothing changes. it still shows the proton simply > going from one end of the absorber to another and the step lengths are > still the distances between the volume boundaries. Is there something > else I am missing in addition to using the User Limits class like this ? > > Thanks for any help you may have >
1- TestEm5 has already his own stepMax mechanism and messenger. See readme. You do not need UserLimits.
2- If you want to implement it anyway, see novice/N02/DetectorConstruction and PhysicsList