DeltaSlopeRZ.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#pragma once
 
#include <tracking/trackFindingVXD/filterMap/filterFramework/SelectionVariable.h>
#include <tracking/trackFindingVXD/filterMap/twoHitVariables/SlopeRZ.h>
 
#define DELTASLOPERZ_NAME DeltaSlopeRZ
 
namespace Belle2 {
  template <typename PointType >
  class DELTASLOPERZ_NAME : public SelectionVariable< PointType, 3, double > {
  public:
 
    PUT_NAME_FUNCTION(DELTASLOPERZ_NAME);
 
    static double value(const PointType& outerHit, const PointType& centerHit, const PointType& innerHit)
    {
 
      double slopeOC = SlopeRZ<PointType>::value(outerHit, centerHit);
      double slopeCI = SlopeRZ<PointType>::value(centerHit, innerHit);
 
      return slopeCI - slopeOC;
    } // return unit: none
  };
 
}