|Message: How can I get Initial positiion of primary particle?||Not Logged In (login)|
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Dear all Hello Can I ask a stupid and simple question? I want to get several informations of my primary particle which is defined as below. For example, /gps/particle ion /gps/ion 3 6 /gps/ene/type Mono /gps/ene/mono 10 GeV /gps/pos/type Plane /gps/pos/shape Rectangle /gps/pos/rot1 0 0 1 /gps/pos/rot2 1 0 0 /gps/pos/halfx 10 cm /gps/pos/halfy 10 cm /gps/pos/centre 0 -5 0 cm /gps/ang/type iso /gps/ang/minphi 0 deg /gps/ang/maxphi 360 deg /gps/ang/mintheta -10 deg /gps/ang/maxtheta 10 deg Here I want to get initial position of primary particle for each event. I also want to get momentum of this particle, so I did as below. --SteppingAction.cc G4PrimaryParticle* PrimaryParticle = aTrack->GetDynamicParticle()->GetPrimaryParticle(); G4double momentumx = PrimaryParticle->GetMomentum().x(); G4double primaryy = PrimaryParticle->GetVertexPosition().y(); G4double primaryz = PrimaryParticle->GetVertexPosition().z(); However I can't find the command to get initial position of primary particle. I want to draw a plot like 'Source X-Y distribution' below. How can I do this? Attachment: http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2015/09/07/14.07-77791-GPSexample.gif Thank you so much. Have a nice day!
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