DumpG4PhysVol.cc

G4TouchableHandle touchable = prePoint->GetTouchableHandle();
const G4NavigationHistory* touchableHistory = touchable->GetHistory();
G4int hdepth = touchable->GetHistoryDepth();
std::cout << "Dumping volume hierarchy ..." << std::endl;
for (int i = hdepth; i > 0; i--) {
  G4VPhysicalVolume* pv = touchableHistory->GetVolume(i);
  std::cout << "  depth: " << i << ", physvol name: " << pv->GetName() << ", copynum: " << pv->GetCopyNo() << std::endl;
}