ScaledShiftedShape.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/

 
#ifndef LArSamples_ScaledShiftedShape_H
#define LArSamples_ScaledShiftedShape_H
 
#include "LArCafJobs/AbsShape.h"
 
namespace LArSamples {
  
  class ATLAS_NOT_THREAD_SAFE ScaledShiftedShape : public AbsShape {
  
   public:
   
    ScaledShiftedShape(const AbsShape& base, double scaling = 1, double shift = 0)
      : m_base(&base), m_scaling(scaling), m_shift(shift) { }
  
    ScaledShiftedShape(const ScaledShiftedShape& other) 
      : AbsShape(), m_base(&other.base()), m_scaling(other.scaling()), m_shift(other.shift()) { }
  
    virtual ~ScaledShiftedShape() { }
    
    const AbsShape& base() const { return *m_base; }
    double scaling() const { return m_scaling; } 
    double shift() const { return m_shift; }
 
    unsigned int nPoints()  const { return base().nPoints(); }  
    double value(unsigned int i) const { return scaling()*base().value(i); }
    double error(unsigned int i) const { return scaling()*base().error(i); }
    double time(unsigned int i) const { return base().time(i) + shift(); }
    double covariance(unsigned int i, unsigned int j) const { return base().covariance(i, j)*scaling()*scaling(); }
    
  private:
 
    const AbsShape* m_base;
    double m_scaling, m_shift;
  };
}
 
#endif