DeltaSlopeRZ.h

/**************************************************************************
* BASF2 (Belle Analysis Framework 2)                                     *
* Copyright(C) 2014 - Belle II Collaboration                             *
*                                                                        *
* Author: The Belle II Collaboration                                     *
* Contributors: Jakob Lettenbichler (jakob.lettenbichler@oeaw.ac.at)     *
*                                                                        *
* This software is provided "as is" without any warranty.                *
**************************************************************************/
 
#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
  };
 
}