fake.C

void fake(Int_t nevents=10)
{
// Example of macro illustrating how to use the automatic
// Geant to Root conversion classes.
// This example requires only the standard Root (not Zebra or Geant)
// Uses simulated data to fill the new classes
 
   gROOT->Reset();
 
   gSystem->Load("libghlib.so");  //load conversion library
 
   // Open the root output file
   TFile file("star.root","recreate","Run root file",2);
 
   StarRun run("run");     // create main object to run Run
 
   run.Init();      // Initialise event (maker histograms,etc)
   run.MakeTree("KHD");  // Create the Root tree
 
   for (Int_t i=0; i<nevents; i++) {
      if (i%1 == 0) printf("In loop:%dn",i);
      run.FakeKine(100,20);  //Generate random tracks
      run.FakeHits(10,5);    //Generate random hits
      run.FillTree();        //Fill the Root trees
      run.Clear();           // Clear all event lists
   }
 
   run.Finish();
 
   // save objects in Root file
   run.TreeK()->Print();
   run.TreeH()->Print();
// run.TreeD()->Print();
   run.Write();  //save main Run object (and run parameters)
}