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C++ TutorialApplication::RunMC方法代码示例

本文整理汇总了C++中TutorialApplication::RunMC方法的典型用法代码示例。如果您正苦于以下问题:C++ TutorialApplication::RunMC方法的具体用法?C++ TutorialApplication::RunMC怎么用?C++ TutorialApplication::RunMC使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TutorialApplication的用法示例。


在下文中一共展示了TutorialApplication::RunMC方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: calibrateEM

void calibrateEM()
{

  // FIXME: There are two possibilities to execute the script:
  // i) root run_hadron_g4.C
  //    root[] .L calibrateEM.C
  //    root[] calibrateEM()
  // or ii) Include the basics from run_hadron_g4.C here and
  //    execute simply:
  //    root calibrateEM.C
  // Load basic libraries
   // Load basic libraries
  gROOT->LoadMacro("/opt/geant4_vmc.2.15a/examples/macro/basiclibs.C");
  basiclibs();

  // Load Geant4 libraries
  gROOT->LoadMacro("/opt/geant4_vmc.2.15a/examples/macro/g4libs.C");
  g4libs();
  
  // Load the tutorial application library
  gSystem->Load("libTutorialApplication");
  
  // MC application
  TutorialApplication* app 
    = new TutorialApplication("TutorialApplication",
			      "Tutorial Application for HEP Lecture @EKP");
  
  // configure Geant4
  gROOT->LoadMacro("g4Config.C");
  Config();

 // instantiate graphical user interface for tutorial application
 new TutorialMainFrame(app);
  //FIXME: Load "CountChargedinScint.C"
  gROOT->ProcessLine(".L CountChargedinScint.C");

  //FIXME: Initialize the geometry
  app->InitMC("geometry/calor(1,0.2)");
  //FIXME: Set the primary particle to photon
  app->SetPrimaryPDG(22);
  // Profile histogram - will show us the mean numbers of counts in bins of the energy.
  // The given binning refers to the energy, the other binning will be inferred automatically.
  TProfile* hcounts = new TProfile("hcounts","Counts per particle energy",
				   10,0,10);
  hcounts->SetXTitle("energy [GeV]");
  hcounts->SetYTitle("mean number of counts");

  // FIXME loop over different particle momenta, and for each momentum simulate several events (e.g. 10)
  for(Int_t i = 0 ; i < 10 ; ++i) {
    for(Int_t k = 0 ; k < 10; k ++) {
    //FIXME: Set the momentum of the primary particle to p
      Double_t p = i;
      app->SetPrimaryMomentum(p);
    //FIXME: Run the simulation
      app->RunMC();
    //FIXME: Fill both the momentum and the output from CountChargedinScint
    //        into the profile histogram hcounts
      Double_t x = CountChargedinScint();
      hcounts->Fill(p,x);
    }
  }

  TCanvas* c = new TCanvas();
  c->cd();
  hcounts->Draw();

  TF1 *fitter = new TF1("fitf","[0]*x", 0,10);
  fitter->SetParameter(0,1.0);
  fitter->SetParNames("calibration factor");
  //FIXME: Fit the histogram to get the calibration factor
  hcounts->Fit("fitf");
}
开发者ID:harrypuuter,项目名称:tp1,代码行数:72,代码来源:calibrateEM.C


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