HitSelector.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/vxdHoughTracking/entities/VXDHoughState.h>
#include <tracking/trackingUtilities/findlets/base/Findlet.h>
#include <vxd/dataobjects/VxdID.h>
 
namespace Belle2 {
  class SpacePoint;
 
  namespace vxdHoughTracking {

    class HitSelector : public TrackingUtilities::Findlet<VXDHoughState, const VxdID, VXDHoughState*> {
 
    public:
      void apply(std::vector<VXDHoughState>& hits, const std::vector<VxdID>& friendSensorList,
                 std::vector<VXDHoughState*>& selectedHits) override
      {
        const unsigned short sensorInLayerSixLadder = friendSensorList.back().getSensorNumber();
 
        for (auto& hit : hits) {
 
          const VxdID& currentHitSensorID = hit.getHit()->getVxdID();
 
          if (std::find(friendSensorList.begin(), friendSensorList.end(), currentHitSensorID) == friendSensorList.end()) {
            continue;
          }
 
          const double hitZPosition = hit.getHit()->Z();
 
          if (sensorInLayerSixLadder == 1 and hitZPosition >= -1.0) {
            selectedHits.emplace_back(&hit);
          } else if (sensorInLayerSixLadder == 5 and hitZPosition <= 1.0) {
            selectedHits.emplace_back(&hit);
          }
        }
      }
    };
 
  }
}