MuonEndcapFrameRotation.cc

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#include "SimG4CMS/Muon/interface/MuonEndcapFrameRotation.h"
#include "SimG4Core/SensitiveDetector/interface/FrameRotation.h"

#include "G4Step.hh"
#include "G4StepPoint.hh"
#include "G4TouchableHistory.hh"

Local3DPoint MuonEndcapFrameRotation::transformPoint(const Local3DPoint& point, const G4Step* step) const {
  const G4StepPoint* preStepPoint = step->GetPreStepPoint();
  const G4TouchableHistory* theTouchable = (const G4TouchableHistory*)preStepPoint->GetTouchable();
  const G4ThreeVector& trans = theTouchable->GetTranslation();

  return (trans.z() < 0) ? Local3DPoint(-point.x(), -point.z(), -point.y())
                         : Local3DPoint(point.x(), point.z(), -point.y());
}