P02/src/ExP02DetConstrReader.cc

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0025 //
0026 /// \file ExP02DetConstrReader.cc
0027 /// \brief Implementation of the ExP02DetConstrReader class
0028
0029 // ROOT
0030 #include "TFile.h"
0031 #include "TROOT.h"
0032 #include "TSystem.h"
0033
0034 // G4
0035 #include "ExP02GeoTree.hh"
0036
0037 #include "G4Element.hh"
0038 #include "G4PVPlacement.hh"
0039
0040 // local
0041 #include "ExP02DetConstrReader.hh"
0042
0043 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0044
0045 ExP02DetConstrReader::ExP02DetConstrReader() : G4VUserDetectorConstruction()
0046 {
0047   // initialize ROOT
0048   TSystem ts;
0049   gSystem->Load("libExP02ClassesDict");
0050 }
0051
0052 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0053
0054 ExP02DetConstrReader::~ExP02DetConstrReader() {}
0055
0056 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0057
0058 G4VPhysicalVolume* ExP02DetConstrReader::Construct()
0059 {
0060   ExP02GeoTree* geotree;
0061
0062   TFile fo("geo.root");
0063   fo.GetObject("my_geo", geotree);
0064
0065   return geotree->TopVol();
0066 }