MissingTrackTool.cc

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/**
 *  @file   larpandoracontent/LArThreeDReco/LArTransverseTrackMatching/MissingTrackTool.cc
 *
 *  @brief  Implementation of the missing track tool class.
 *
 *  $Log: $
 */

#include "larpandoracontent/LArThreeDReco/LArTransverseTrackMatching/MissingTrackTool.h"
#include "Pandora/AlgorithmHeaders.h"

using namespace pandora;

namespace lar_content
{

MissingTrackTool::MissingTrackTool() :
    m_minMatchedSamplingPoints(15),
    m_minMatchedFraction(0.95f),
    m_maxReducedChiSquared(0.707f),
    m_minXOverlapFraction(0.75f)
{
}

//------------------------------------------------------------------------------------------------------------------------------------------

bool MissingTrackTool::Run(ThreeViewTransverseTracksAlgorithm *const pAlgorithm, TensorType &overlapTensor)
{
    if (PandoraContentApi::GetSettings(*pAlgorithm)->ShouldDisplayAlgorithmInfo())
        std::cout << "----> Running Algorithm Tool: " << this->GetInstanceName() << ", " << this->GetType() << std::endl;

    ProtoParticleVector protoParticleVector;
    this->FindMissingTracks(overlapTensor, protoParticleVector);

    const bool particlesMade(pAlgorithm->CreateThreeDParticles(protoParticleVector));
    return particlesMade;
}

//------------------------------------------------------------------------------------------------------------------------------------------

void MissingTrackTool::FindMissingTracks(const TensorType &overlapTensor, ProtoParticleVector &protoParticleVector) const
{
    ClusterSet usedClusters;
    ClusterVector sortedKeyClusters;
    overlapTensor.GetSortedKeyClusters(sortedKeyClusters);

    for (const Cluster *const pKeyCluster : sortedKeyClusters)
    {
        unsigned int nU(0), nV(0), nW(0);
        TensorType::ElementList elementList;
        overlapTensor.GetConnectedElements(pKeyCluster, false, elementList, nU, nV, nW);

        for (TensorType::ElementList::const_iterator eIter = elementList.begin(); eIter != elementList.end(); ++eIter)
        {
            const bool includeU(eIter->GetClusterU()->IsAvailable() && !usedClusters.count(eIter->GetClusterU()));
            const bool includeV(eIter->GetClusterV()->IsAvailable() && !usedClusters.count(eIter->GetClusterV()));
            const bool includeW(eIter->GetClusterW()->IsAvailable() && !usedClusters.count(eIter->GetClusterW()));

            unsigned int nAvailable(0);
            if (includeU)
                ++nAvailable;
            if (includeV)
                ++nAvailable;
            if (includeW)
                ++nAvailable;

            if (2 != nAvailable)
                continue;

            const TransverseOverlapResult &overlapResult(eIter->GetOverlapResult());

            if (overlapResult.GetNMatchedSamplingPoints() < m_minMatchedSamplingPoints)
                continue;

            if (overlapResult.GetMatchedFraction() < m_minMatchedFraction)
                continue;

            if (overlapResult.GetReducedChi2() > m_maxReducedChiSquared)
                continue;

            if ((overlapResult.GetXOverlap().GetXSpanU() < std::numeric_limits<float>::epsilon()) ||
                (overlapResult.GetXOverlap().GetXSpanV() < std::numeric_limits<float>::epsilon()) ||
                (overlapResult.GetXOverlap().GetXSpanW() < std::numeric_limits<float>::epsilon()))
            {
                continue;
            }

            const float xOverlapSpan(overlapResult.GetXOverlap().GetXOverlapSpan());

            if (includeU && (xOverlapSpan / overlapResult.GetXOverlap().GetXSpanU() < m_minXOverlapFraction))
                continue;

            if (includeV && (xOverlapSpan / overlapResult.GetXOverlap().GetXSpanV() < m_minXOverlapFraction))
                continue;

            if (includeW && (xOverlapSpan / overlapResult.GetXOverlap().GetXSpanW() < m_minXOverlapFraction))
                continue;

            ProtoParticle protoParticle;
            if (includeU)
                protoParticle.m_clusterList.push_back(eIter->GetClusterU());
            if (includeV)
                protoParticle.m_clusterList.push_back(eIter->GetClusterV());
            if (includeW)
                protoParticle.m_clusterList.push_back(eIter->GetClusterW());

            protoParticleVector.push_back(protoParticle);
            usedClusters.insert(eIter->GetClusterU());
            usedClusters.insert(eIter->GetClusterV());
            usedClusters.insert(eIter->GetClusterW());
        }
    }
}

//------------------------------------------------------------------------------------------------------------------------------------------

StatusCode MissingTrackTool::ReadSettings(const TiXmlHandle xmlHandle)
{
    PANDORA_RETURN_RESULT_IF_AND_IF(STATUS_CODE_SUCCESS, STATUS_CODE_NOT_FOUND, !=,
        XmlHelper::ReadValue(xmlHandle, "MinMatchedSamplingPoints", m_minMatchedSamplingPoints));

    PANDORA_RETURN_RESULT_IF_AND_IF(
        STATUS_CODE_SUCCESS, STATUS_CODE_NOT_FOUND, !=, XmlHelper::ReadValue(xmlHandle, "MinMatchedFraction", m_minMatchedFraction));

    PANDORA_RETURN_RESULT_IF_AND_IF(
        STATUS_CODE_SUCCESS, STATUS_CODE_NOT_FOUND, !=, XmlHelper::ReadValue(xmlHandle, "MaxReducedChiSquared", m_maxReducedChiSquared));

    PANDORA_RETURN_RESULT_IF_AND_IF(
        STATUS_CODE_SUCCESS, STATUS_CODE_NOT_FOUND, !=, XmlHelper::ReadValue(xmlHandle, "MinXOverlapFraction", m_minXOverlapFraction));

    return STATUS_CODE_SUCCESS;
}

} // namespace lar_content