Inheritance diagram for ShowerRecoTools::ShowerPFPVertexStartPosition:

Public Member Functions
	ShowerPFPVertexStartPosition (const fhicl::ParameterSet &pset)

int	CalculateElement (const art::Ptr< recob::PFParticle > &pfparticle, art::Event &Event, reco::shower::ShowerElementHolder &ShowerEleHolder) override

Public Member Functions inherited from ShowerRecoTools::IShowerTool
	IShowerTool (const fhicl::ParameterSet &pset)

virtual	~IShowerTool () noexcept=default

int	RunShowerTool (const art::Ptr< recob::PFParticle > &pfparticle, art::Event &Event, reco::shower::ShowerElementHolder &ShowerEleHolder, std::string evd_display_name_append="")

virtual void	InitialiseProducers ()

void	SetPtr (art::ProducesCollector *collector)

void	InitaliseProducerPtr (reco::shower::ShowerProducedPtrsHolder &uniqueproducerPtrs)

virtual int	AddAssociations (const art::Ptr< recob::PFParticle > &pfpPtr, art::Event &Event, reco::shower::ShowerElementHolder &ShowerEleHolder)

Private Attributes
art::InputTag	fPFParticleLabel

int	fVerbose

std::string	fShowerStartPositionOutputLabel

std::string	fShowerDirectionInputLabel

Additional Inherited Members
Protected Member Functions inherited from ShowerRecoTools::IShowerTool
const shower::LArPandoraShowerAlg &	GetLArPandoraShowerAlg () const

template<class T >
art::Ptr< T >	GetProducedElementPtr (std::string Name, reco::shower::ShowerElementHolder &ShowerEleHolder, int iter=-1)

template<class T >
void	InitialiseProduct (std::string Name, std::string InstanceName="")

template<class T , class A , class B >
void	AddSingle (A &a, B &b, std::string Name)

int	GetVectorPtrSize (std::string Name)

void	PrintPtrs ()

void	PrintPtr (std::string Name)

Detailed Description

Definition at line 18 of file ShowerPFPVertexStartPosition_tool.cc.

Constructor & Destructor Documentation

ShowerRecoTools::ShowerPFPVertexStartPosition::ShowerPFPVertexStartPosition ( const fhicl::ParameterSet & pset )

Definition at line 36 of file ShowerPFPVertexStartPosition_tool.cc.

     : IShowerTool(pset.get<fhicl::ParameterSet>("BaseTools"))
     , fPFParticleLabel(pset.get<art::InputTag>("PFParticleLabel"))
     , fVerbose(pset.get<int>("Verbose"))
     , fShowerStartPositionOutputLabel(pset.get<std::string>("ShowerStartPositionOutputLabel"))
     , fShowerDirectionInputLabel(pset.get<std::string>("ShowerDirectionInputLabel"))
   {}

Member Function Documentation

int ShowerRecoTools::ShowerPFPVertexStartPosition::CalculateElement	(	const art::Ptr< recob::PFParticle > &	pfparticle,
		art::Event &	Event,
		reco::shower::ShowerElementHolder &	ShowerEleHolder
	)

overridevirtual

Implements ShowerRecoTools::IShowerTool.

Definition at line 45 of file ShowerPFPVertexStartPosition_tool.cc.

   {
 
     // Get the assocated pfParicle vertex PFParticles
     auto const pfpHandle = Event.getValidHandle<std::vector<recob::PFParticle>>(fPFParticleLabel);
 
     const art::FindManyP<recob::Vertex>& fmv =
       ShowerEleHolder.GetFindManyP<recob::Vertex>(pfpHandle, Event, fPFParticleLabel);
     // art::FindManyP<recob::Vertex> fmv(pfpHandle, Event, fPFParticleLabel);
     if (!fmv.isValid()) {
       throw cet::exception("ShowerPFPVertexStartPosition")
         << "Vertex and PF particle association is somehow not valid. Stopping";
     }
 
     std::vector<art::Ptr<recob::Vertex>> vtx_cand;
     try {
       vtx_cand = fmv.at(pfparticle.key());
     }
     catch (...) {
       if (fVerbose)
         mf::LogError("ShowerPFPVertexStartPosition") << "PFP-Vertex assan not set, returning";
       return 1;
     }
     //If there is more than one then fail becuase I don't think that this can be the case
     if (vtx_cand.size() != 1) {
       if (fVerbose)
         mf::LogError("ShowerPFPVertexStartPosition")
           << "Wrong number of vertices: " << vtx_cand.size() << ", returning";
       return 1;
     }
 
     //If there is only one vertex good news we just say that is the start of the shower.
     if (vtx_cand.size() == 1) {
       art::Ptr<recob::Vertex> StartPositionVertex = vtx_cand[0];
       double xyz[3] = {-999, -999, -999};
       StartPositionVertex->XYZ(xyz);
       TVector3 ShowerStartPosition = {xyz[0], xyz[1], xyz[2]};
       TVector3 ShowerStartPositionErr = {-999, -999, -999};
       ShowerEleHolder.SetElement(
         ShowerStartPosition, ShowerStartPositionErr, fShowerStartPositionOutputLabel);
       return 0;
     }
 
     //If we there have none then use the direction to find the neutrino vertex
     if (ShowerEleHolder.CheckElement(fShowerDirectionInputLabel)) {
 
       TVector3 ShowerDirection = {-999, -999, -999};
       ShowerEleHolder.GetElement(fShowerDirectionInputLabel, ShowerDirection);
 
       const art::FindManyP<recob::SpacePoint>& fmspp =
         ShowerEleHolder.GetFindManyP<recob::SpacePoint>(pfpHandle, Event, fPFParticleLabel);
 
       //Get the spacepoints handle and the hit assoication
       auto const spHandle = Event.getValidHandle<std::vector<recob::SpacePoint>>(fPFParticleLabel);
       const art::FindManyP<recob::Hit>& fmh =
         ShowerEleHolder.GetFindManyP<recob::Hit>(spHandle, Event, fPFParticleLabel);
 
       //Get the spacepoints
       std::vector<art::Ptr<recob::SpacePoint>> spacePoints_pfp = fmspp.at(pfparticle.key());
 
       //Cannot continue if we have no spacepoints
       if (spacePoints_pfp.empty()) { return 0; }
 
       //Get the Shower Center
       auto const clockData =
         art::ServiceHandle<detinfo::DetectorClocksService const>()->DataFor(Event);
       auto const detProp =
         art::ServiceHandle<detinfo::DetectorPropertiesService const>()->DataFor(Event, clockData);
 
       TVector3 ShowerCentre = IShowerTool::GetLArPandoraShowerAlg().ShowerCentre(
         clockData, detProp, spacePoints_pfp, fmh);
 
       //Order the Hits from the shower centre. The most negative will be the start position.
       IShowerTool::GetLArPandoraShowerAlg().OrderShowerSpacePoints(
         spacePoints_pfp, ShowerCentre, ShowerDirection);
 
       //Set the start position.
       TVector3 ShowerStartPosition =
         IShowerTool::GetLArPandoraShowerAlg().SpacePointPosition(spacePoints_pfp[0]);
 
       TVector3 ShowerStartPositionErr = {-999, -999, -999};
       ShowerEleHolder.SetElement(
         ShowerStartPosition, ShowerStartPositionErr, fShowerStartPositionOutputLabel);
 
       return 0;
     }
 
     if (fVerbose)
       mf::LogWarning("ShowerPFPVertexStartPosition")
         << "Start Position has not been set yet. If you are not calculating the start position "
            "again then maybe you should stop";
     return 0;
   }