RoughCDCStateFilter.cc

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2017 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Nils Braun                                               *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
#include <tracking/ckf/cdc/filters/states/RoughCDCStateFilter.h>
 
#include <tracking/ckf/cdc/entities/CDCCKFState.h>
#include <tracking/ckf/cdc/entities/CDCCKFPath.h>
 
#include <tracking/trackFindingCDC/utilities/StringManipulation.h>
#include <framework/core/ModuleParamList.h>
 
using namespace Belle2;
 
TrackFindingCDC::Weight RoughCDCStateFilter::operator()(const BaseCDCStateFilter::Object& pair)
{
  const CDCCKFPath* path = pair.first;
  const CDCCKFState& state = *(pair.second);
  const CDCCKFState& lastState = path->back();
 
  const double& arcLength = state.getArcLength() - lastState.getArcLength();
  // TODO: magic number
  if (arcLength <= 0 or arcLength > 20) {
    return NAN;
  }
 
  const double& hitDistance = state.getHitDistance();
  if (std::abs(hitDistance) > m_maximalHitDistance) {
    return NAN;
  }
 
  return 1;
}
 
 
void RoughCDCStateFilter::exposeParameters(ModuleParamList* moduleParamList, const std::string& prefix)
{
  moduleParamList->addParameter(TrackFindingCDC::prefixed(prefix, "maximalHitDistance"),
                                m_maximalHitDistance,
                                "Maximal allowed hit distance",
                                m_maximalHitDistance);
}