/data/refman/pasoursint/CMSSW_5_3_0/src/SimG4CMS/Muon/src/MuonEndcapFrameRotation.cc

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#include "SimG4CMS/Muon/interface/MuonEndcapFrameRotation.h"

#include "G4StepPoint.hh"
#include "G4TouchableHistory.hh"

Local3DPoint MuonEndcapFrameRotation::transformPoint(Local3DPoint & point,G4Step * s=0) const {
  if (s) {
    G4StepPoint * preStepPoint = s->GetPreStepPoint();
    G4TouchableHistory * theTouchable=(G4TouchableHistory *)
                                      (preStepPoint->GetTouchable());
    const G4ThreeVector trans=theTouchable->GetTranslation();
    
    if (trans.z()<0) {
      //      return Local3DPoint(point.x(),-point.z(),point.y());
      //      return Local3DPoint(-point.x(),point.z(),-point.y());
      return Local3DPoint(-point.x(),-point.z(),-point.y());
    } else {
      //      return Local3DPoint(point.x(),point.z(),-point.y());
      return Local3DPoint(point.x(),point.z(),-point.y());
    }
  } else {
    return Local3DPoint(0.,0.,0.);
  }
}