lar_content::LArEventTopology Class Reference

LArEventTopology class. More...

#include "LArEventTopology.h"

Classes
class	Particle

Public Member Functions
	LArEventTopology (const pandora::CaloHitList &caloHitList2D)
	Constructor. More...
virtual	~LArEventTopology ()
	Destructor. More...
void	ConstructVisibleHierarchy ()
	Construct a particle hierarchy based on the key topological features in an event. More...
void	GetVertices (pandora::CartesianPointVector &vertices) const
	Extract the clear topological vertices from the event. More...
void	PruneHierarchy ()
	Fold or remove particles that aren't substantive parts of the hierarchy. More...
void	Print () const
	Print the visible hierarchy. More...

Private Types
typedef std::map< const pandora::MCParticle *, pandora::CaloHitList >	MCHitMap

Private Member Functions
void	ConstructVisibleHierarchy (Particle *pParticle, const pandora::MCParticle *const pRootMC)
	Construct a particle hierarhcy based on the key topological features in an event. More...

Private Attributes
MCHitMap	m_mcHitMap
const pandora::MCParticle *	m_pRoot
Particle *	m_pParticle

Detailed Description

LArEventTopology class.

Definition at line 21 of file LArEventTopology.h.

Member Typedef Documentation

typedef std::map<const pandora::MCParticle *, pandora::CaloHitList> lar_content::LArEventTopology::MCHitMap

private

Definition at line 24 of file LArEventTopology.h.

Constructor & Destructor Documentation

lar_content::LArEventTopology::LArEventTopology

(

const pandora::CaloHitList &

caloHitList2D

)

Constructor.

Parameters

caloHitList2D

The collection of all hits across all views

Definition at line 23 of file LArEventTopology.cc.

References lar_content::LArMCParticleHelper::IsNeutrino(), m_mcHitMap, m_pParticle, and m_pRoot.

                                                                   :
    m_pRoot{nullptr},
    m_pParticle{nullptr}
{
    for (const CaloHit *const pCaloHit : caloHitList2D)
    {
        try
        {
            const MCParticle *pMCParticle{MCParticleHelper::GetMainMCParticle(pCaloHit)};
            m_mcHitMap[pMCParticle].emplace_back(pCaloHit);
            if (!(m_pRoot && LArMCParticleHelper::IsNeutrino(m_pRoot)))
            {
                const MCParticle *pRoot{pMCParticle};
                while (!pRoot->GetParentList().empty())
                    pRoot = pRoot->GetParentList().front();
                m_pRoot = pRoot;
            }
        }
        catch (const StatusCodeException &)
        {
        }
    }
}

lar_content::LArEventTopology::~LArEventTopology ( )

virtual

Destructor.

Definition at line 49 of file LArEventTopology.cc.

References m_pParticle.

{
    delete m_pParticle;
}

Member Function Documentation

void lar_content::LArEventTopology::ConstructVisibleHierarchy

(

)

Construct a particle hierarchy based on the key topological features in an event.

Definition at line 56 of file LArEventTopology.cc.

References m_pParticle, and m_pRoot.

Referenced by lar_content::VertexMonitoringAlgorithm::AssessSecondaryVertices(), lar_dl_content::DlSecondaryVertexingAlgorithm::PrepareTrainingSample(), Print(), and lar_content::CheatingSecondaryVertexAlgorithm::Run().

{
    m_pParticle = new Particle(m_pRoot);
    this->ConstructVisibleHierarchy(m_pParticle, m_pRoot);
}

void lar_content::LArEventTopology::ConstructVisibleHierarchy ( Particle *  pParticle, const pandora::MCParticle *const  pRootMC  )

private

Construct a particle hierarhcy based on the key topological features in an event.

Parameters

pParticle	The parent particle relative to which the hierarchy should be constructed
pRootMC	The underlying MC particle associated with the parent particle

void lar_content::LArEventTopology::GetVertices

(

pandora::CartesianPointVector &

vertices

)

const

Extract the clear topological vertices from the event.

Definition at line 64 of file LArEventTopology.cc.

References lar_content::LArEventTopology::Particle::GetVertices(), and m_pParticle.

Referenced by lar_content::VertexMonitoringAlgorithm::AssessSecondaryVertices(), lar_dl_content::DlSecondaryVertexingAlgorithm::PrepareTrainingSample(), and lar_content::CheatingSecondaryVertexAlgorithm::Run().

{
    m_pParticle->GetVertices(vertices);

    CartesianPointVector forRemoval;
    for (auto iter1 = vertices.begin(); iter1 != vertices.end(); ++iter1)
    {
        const CartesianVector &vertex1{*iter1};
        if (std::find(forRemoval.begin(), forRemoval.end(), vertex1) != forRemoval.end())
            continue;
        for (auto iter2 = std::next(iter1); iter2 != vertices.end(); ++iter2)
        {
            const CartesianVector &vertex2{*iter2};
            if (std::find(forRemoval.begin(), forRemoval.end(), vertex2) != forRemoval.end())
                continue;
            if (vertex1.GetDistanceSquared(vertex2) < 1)
                forRemoval.emplace_back(vertex2);
        }
    }

    for (auto iter = vertices.begin(); iter != vertices.end();)
    {
        if (std::find(forRemoval.begin(), forRemoval.end(), *iter) != forRemoval.end())
            iter = vertices.erase(iter);
        else
            ++iter;
    }
}

void lar_content::LArEventTopology::Print

(

)

const

Print the visible hierarchy.

Definition at line 95 of file LArEventTopology.cc.

References lar_content::LArEventTopology::Particle::AddChild(), ConstructVisibleHierarchy(), m_mcHitMap, m_pParticle, m_pRoot, lar_content::LArEventTopology::Particle::Print(), and util::to_string().

{
    std::string str{"Neutrino hierarchy: " + std::to_string(m_pRoot->GetParticleId()) + " E: " + std::to_string(m_pRoot->GetEnergy()) +
        " GeV\n" + m_pParticle->Print(m_mcHitMap, "  ")};
    std::cout << str << std::endl;
}

void lar_content::LArEventTopology::PruneHierarchy

(

)

Fold or remove particles that aren't substantive parts of the hierarchy.

Definition at line 123 of file LArEventTopology.cc.

References m_mcHitMap, m_pParticle, lar_content::LArEventTopology::Particle::Parse(), lar_content::LArEventTopology::Particle::Particle(), and lar_content::LArEventTopology::Particle::Prune().

Referenced by lar_dl_content::DlSecondaryVertexingAlgorithm::PrepareTrainingSample(), and lar_content::CheatingSecondaryVertexAlgorithm::Run().

{
    m_pParticle->Parse(m_mcHitMap);
    m_pParticle->Prune();
}

Member Data Documentation

MCHitMap lar_content::LArEventTopology::m_mcHitMap

private

Definition at line 131 of file LArEventTopology.h.

Referenced by LArEventTopology(), Print(), and PruneHierarchy().

Particle* lar_content::LArEventTopology::m_pParticle

private

Definition at line 133 of file LArEventTopology.h.

Referenced by ConstructVisibleHierarchy(), GetVertices(), LArEventTopology(), Print(), PruneHierarchy(), and ~LArEventTopology().

const pandora::MCParticle* lar_content::LArEventTopology::m_pRoot

private

Definition at line 132 of file LArEventTopology.h.

Referenced by ConstructVisibleHierarchy(), LArEventTopology(), and Print().

---

The documentation for this class was generated from the following files:

• larpandoracontent/v04_14_00/source/larpandoracontent/LArObjects/LArEventTopology.h
• larpandoracontent/v04_14_00/source/larpandoracontent/LArObjects/LArEventTopology.cc