vtkSmartPointer<vtkTransform> GetTransform();
void SetTimeSpacing(double s) { mTimeSpacing = s; }
void SetTimeOrigin(double o) { mTimeOrigin = o; }
vtkSmartPointer<vtkTransform> GetTransform();
void SetTimeSpacing(double s) { mTimeSpacing = s; }
void SetTimeOrigin(double o) { mTimeOrigin = o; }