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// $Id: run_g4.C,v 1.0 2007/06/01 |
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// |
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// Macro for running G4PAM_VMC with Geant4. |
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void PamG4Libs_granular(); |
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#include <PamLevel2.h> |
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#include <PamG4Libs.h> |
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#include <PamVMCApplication.h> |
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#include <G4ApplicationState.hh> |
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#include <TG4ApplicationState.h> |
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#include <TGeant4.h> |
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#include <PrimaryInfo.h> |
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void run_sim_g4(const TString& configMacro = "g4Config.C", const TString& primfile = "prim.root") { |
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cout<<"PRIMFILE: "<<primfile<<endl; |
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TFile rfin(primfile,"read"); |
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TTree * primtree = (TTree*)rfin.Get("primaries"); |
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if(!primtree) cout<<"ERROR: tree 'primaries' with primaries kinematics not found!"<<endl; |
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PrimaryInfo *p = 0; |
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primtree->SetBranchAddress("PRIM", &p); |
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PamG4Libs(); |
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// Load this example libraries |
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TString PAM_VMC=gSystem->Getenv("PAM_VMC"); |
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TString PLAT=gSystem->Getenv("PLATFORM"); |
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// MC application |
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TString outname="."; |
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outname+="/"; |
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outname+=primfile; |
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outname.Replace(0,outname.Index("prim_",0),""); |
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outname.Replace(outname.Index(".root",0),5,"_sim"); |
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cout<<"OUTNAME="<<outname<<endl; |
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PamVMCApplication* appl |
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= new PamVMCApplication("PAMG4_VMC", "PAMELA GEANT4 VMC application", outname); |
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// Initialize MC |
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TString G4ConfMacro=PAM_VMC+"/config/"+configMacro; |
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appl->InitMC(G4ConfMacro); |
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cout<<"MACRO READED"<<endl; |
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((TGeant4*)gMC)->SetMaxNStep(50000); |
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Int_t nevents = primtree->GetEntries(); |
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; |
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//MAIN LOOP |
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Double_t x,y,z,theta,phi,momentum; |
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Int_t pdg; |
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for(Int_t i = 0; i<nevents; i++){ |
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rfin.cd(); |
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primtree->GetEntry(i); |
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x = p->X0; |
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y = p->Y0; |
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z = p->Z0; |
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theta = p->Theta; |
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phi = p->Phi; |
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pdg = p->PDG; |
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momentum = p->P0; |
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cout<<"EVENT: "<<i<<endl; |
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cout<<"PDG:"<<pdg<<endl |
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<<"X0: "<<x<<" (cm)"<<endl |
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<<"Y0: "<<y<<" (cm)"<<endl |
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<<"Z0: "<<z<<" (cm)"<<endl |
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<<"Theta:"<<theta*180./TMath::Pi()<<" (deg)"<<endl |
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<<"Phi:"<<phi*180./TMath::Pi()<<" (deg)"<<endl |
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<<"Momentum: "<<momentum<<" (GV)"<<endl; |
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appl->GetPrimaryGenerator()->SetParticle(pdg); |
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appl->GetPrimaryGenerator()->SetDirection(theta,phi); |
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appl->GetPrimaryGenerator()->SetMomentum(momentum); |
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appl->GetPrimaryGenerator()->SetPosition(x,y,z); |
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appl->RunMC(1); |
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} |
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appl->FinishRun(); |
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// delete appl; |
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} |
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