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DisplayOn.C
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1 #pragma once
2 #if ROOT_VERSION_CODE >= ROOT_VERSION(6,00,0)
4 #include <g4main/PHG4Reco.h>
5 #endif
6 
7 // stupid macro to turn on the geant4 display
8 // we ask Fun4All for a pointer to PHG4Reco
9 // using the ApplyCommand will start up the
10 // G4 cmd interpreter and graphics system
11 // the iongun.mac contains the necessary commands to
12 // start up the visualization, the next event will
13 // be displayed. Execute this macro after you run
14 // Fun4All_G4_IonGun.C(0), then do
15 // PHG4Reco *g4 = DisplayOn();
16 PHG4Reco * DisplayOn(const char *mac = "iongun.mac")
17 {
18  char cmd[100];
20  PHG4Reco *g4 = (PHG4Reco *) se->getSubsysReco("PHG4RECO");
21  g4->InitRun(se->topNode());
22  g4->ApplyDisplayAction();
23  sprintf(cmd, "/control/execute %s", mac);
24  g4->ApplyCommand(cmd);
25  return g4;
26 }
27 // print out the commands I always forget
28 void displaycmd()
29 {
30  cout << "draw axis: " << endl;
31  cout << " g4->ApplyCommand(\"/vis/scene/add/axes 0 0 0 50 cm\")" << endl;
32  cout << "zoom" << endl;
33  cout << " g4->ApplyCommand(\"/vis/viewer/zoom 1\")" << endl;
34  cout << "viewpoint:" << endl;
35  cout << " g4->ApplyCommand(\"/vis/viewer/set/viewpointThetaPhi 0 0\")" << endl;
36  cout << "panTo:" << endl;
37  cout << " g4->ApplyCommand(\"/vis/viewer/panTo 0 0 cm\")" << endl;
38  cout << "print to eps:" << endl;
39  cout << " g4->ApplyCommand(\"/vis/ogl/printEPS\")" << endl;
40  cout << "set background color:" << endl;
41  cout << " g4->ApplyCommand(\"/vis/viewer/set/background white\")" << endl;
42 }