tutorials/IonGun/DisplayOn.C

0001 #pragma once
0002 #if ROOT_VERSION_CODE >= ROOT_VERSION(6,00,0)
0003 #include <fun4all/Fun4AllServer.h>
0004 #include <g4main/PHG4Reco.h>
0005 #endif
0006
0007 // stupid macro to turn on the geant4 display
0008 // we ask Fun4All for a pointer to PHG4Reco
0009 // using the ApplyCommand will start up the
0010 // G4 cmd interpreter and graphics system
0011 // the iongun.mac contains the necessary commands to
0012 // start up the visualization, the next event will
0013 // be displayed. Execute this macro after you run
0014 // Fun4All_G4_IonGun.C(0), then do
0015 // PHG4Reco *g4 = DisplayOn();
0016 PHG4Reco * DisplayOn(const char *mac = "iongun.mac")
0017 {
0018   char cmd[100];
0019   Fun4AllServer *se = Fun4AllServer::instance();
0020   PHG4Reco *g4 = (PHG4Reco *) se->getSubsysReco("PHG4RECO");
0021   g4->InitRun(se->topNode());
0022   g4->ApplyDisplayAction();
0023   sprintf(cmd, "/control/execute %s", mac);
0024   g4->ApplyCommand(cmd);
0025   return g4;
0026 }
0027 // print out the commands I always forget
0028 void displaycmd()
0029 {
0030   cout << "draw axis: " << endl;
0031   cout << " g4->ApplyCommand(\"/vis/scene/add/axes 0 0 0 50 cm\")" << endl;
0032   cout << "zoom" << endl;
0033   cout << " g4->ApplyCommand(\"/vis/viewer/zoom 1\")" << endl;
0034   cout << "viewpoint:" << endl;
0035   cout << " g4->ApplyCommand(\"/vis/viewer/set/viewpointThetaPhi 0 0\")" << endl;
0036   cout << "panTo:" << endl;
0037   cout << " g4->ApplyCommand(\"/vis/viewer/panTo 0 0 cm\")" << endl;
0038   cout << "print to eps:" << endl;
0039   cout << " g4->ApplyCommand(\"/vis/ogl/printEPS\")" << endl;
0040   cout << "set background color:" << endl;
0041   cout << " g4->ApplyCommand(\"/vis/viewer/set/background white\")" << endl;
0042 }