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PandoraInterface.cxx
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PandoraInterface.cxx
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/**
* @file LArRecoMP/test/PandoraInterface.cc
*
* @brief Implementation of the lar reco mp application
*
* $Log: $
*/
#include "TFile.h"
#include "TTree.h"
#include "TGeoBBox.h"
#include "TGeoManager.h"
#include "TGeoMatrix.h"
#include "TGeoShape.h"
#include "TGeoVolume.h"
#ifdef USE_EDEPSIM
#include "TG4PrimaryVertex.h"
#endif
#include "Api/PandoraApi.h"
#include "Geometry/LArTPC.h"
#include "Helpers/XmlHelper.h"
#include "Managers/GeometryManager.h"
#include "Managers/PluginManager.h"
#include "Xml/tinyxml.h"
#include "larpandoracontent/LArContent.h"
#include "larpandoracontent/LArControlFlow/MasterAlgorithm.h"
#include "larpandoracontent/LArControlFlow/MultiPandoraApi.h"
#include "larpandoracontent/LArObjects/LArCaloHit.h"
#include "larpandoracontent/LArObjects/LArMCParticle.h"
#include "larpandoracontent/LArPlugins/LArPseudoLayerPlugin.h"
#include "larpandoracontent/LArPlugins/LArRotationalTransformationPlugin.h"
#ifdef LIBTORCH_DL
#include "larpandoradlcontent/LArDLContent.h"
#endif
#include "LArNDContent.h"
#include "LArNDGeomSimple.h"
#include "LArRay.h"
#include "PandoraInterface.h"
#ifdef MONITORING
#include "TApplication.h"
#endif
#include <algorithm>
#include <cmath>
#include <getopt.h>
#include <iostream>
#include <memory>
#include <random>
#include <string>
#include <vector>
using namespace pandora;
using namespace lar_nd_reco;
int main(int argc, char *argv[])
{
int errorNo(0);
const Pandora *pPrimaryPandora(nullptr);
try
{
Parameters parameters;
if (!ParseCommandLine(argc, argv, parameters))
return 1;
#ifdef MONITORING
TApplication *pTApplication = new TApplication("LArReco", &argc, argv);
pTApplication->SetReturnFromRun(kTRUE);
#endif
pPrimaryPandora = new pandora::Pandora();
if (!pPrimaryPandora)
throw StatusCodeException(STATUS_CODE_FAILURE);
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, LArContent::RegisterAlgorithms(*pPrimaryPandora));
#ifdef LIBTORCH_DL
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, LArDLContent::RegisterAlgorithms(*pPrimaryPandora));
#endif
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, LArContent::RegisterBasicPlugins(*pPrimaryPandora));
if (parameters.m_use3D)
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, LArNDContent::RegisterAlgorithms(*pPrimaryPandora));
MultiPandoraApi::AddPrimaryPandoraInstance(pPrimaryPandora);
LArNDGeomSimple simpleGeom;
CreateGeometry(parameters, pPrimaryPandora, simpleGeom);
ProcessExternalParameters(parameters, pPrimaryPandora);
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, PandoraApi::SetPseudoLayerPlugin(*pPrimaryPandora, new lar_content::LArPseudoLayerPlugin));
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=,
PandoraApi::SetLArTransformationPlugin(*pPrimaryPandora, new lar_content::LArRotationalTransformationPlugin));
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, PandoraApi::ReadSettings(*pPrimaryPandora, parameters.m_settingsFile));
ProcessEvents(parameters, pPrimaryPandora, simpleGeom);
}
catch (const StatusCodeException &statusCodeException)
{
std::cerr << "Pandora StatusCodeException: " << statusCodeException.ToString() << statusCodeException.GetBackTrace() << std::endl;
errorNo = 1;
}
catch (...)
{
std::cerr << "Unknown exception: " << std::endl;
errorNo = 1;
}
MultiPandoraApi::DeletePandoraInstances(pPrimaryPandora);
return errorNo;
}
//------------------------------------------------------------------------------------------------------------------------------------------
namespace lar_nd_reco
{
void CreateGeometry(const Parameters ¶meters, const Pandora *const pPrimaryPandora, LArNDGeomSimple &geom)
{
// Get the geometry info from the appropriate ROOT file
TFile *fileSource = TFile::Open(parameters.m_geomFileName.c_str(), "READ");
if (!fileSource)
{
std::cout << "Error in CreateGeometry(): can't open file " << parameters.m_geomFileName << std::endl;
return;
}
TGeoManager *pSimGeom = dynamic_cast<TGeoManager *>(fileSource->Get(parameters.m_geomManagerName.c_str()));
if (!pSimGeom)
{
std::cout << "Could not find the geometry manager named " << parameters.m_geomManagerName << std::endl;
fileSource->Close();
return;
}
// Go through the geometry and find the paths to the nodes we are interested in
std::vector<std::vector<unsigned int>> nodePaths; // Store the daughter indices in the path to the node
std::vector<unsigned int> currentPath;
const std::string nameToFind = parameters.m_useModularGeometry ? parameters.m_sensitiveDetName : parameters.m_geometryVolName;
RecursiveGeometrySearch(pSimGeom, nameToFind, nodePaths, currentPath);
std::cout << "Found " << nodePaths.size() << " matches for volumes containing the name " << nameToFind << std::endl;
// Navigate to each node and use them to build the pandora geometry
for (unsigned int n = 0; n < nodePaths.size(); ++n)
{
const TGeoNode *pTopNode = pSimGeom->GetCurrentNode();
// We have to multiply together matrices at each depth to convert local coordinates to the world volume
std::unique_ptr<TGeoHMatrix> pVolMatrix = std::make_unique<TGeoHMatrix>(*pTopNode->GetMatrix());
for (unsigned int d = 0; d < nodePaths.at(n).size(); ++d)
{
pSimGeom->CdDown(nodePaths.at(n).at(d));
const TGeoNode *pNode = pSimGeom->GetCurrentNode();
std::unique_ptr<TGeoHMatrix> pMatrix = std::make_unique<TGeoHMatrix>(*pNode->GetMatrix());
pVolMatrix->Multiply(pMatrix.get());
}
const TGeoNode *pTargetNode = pSimGeom->GetCurrentNode();
MakePandoraTPC(pPrimaryPandora, parameters, geom, pVolMatrix, pTargetNode, n);
for (const unsigned int &daughter : nodePaths.at(n))
{
(void)daughter;
pSimGeom->CdUp();
}
}
std::cout << "Created " << nodePaths.size() << " TPCs" << std::endl;
fileSource->Close();
}
//------------------------------------------------------------------------------------------------------------------------------------------
void RecursiveGeometrySearch(TGeoManager *pSimGeom, const std::string &targetName, std::vector<std::vector<unsigned int>> &nodePaths,
std::vector<unsigned int> ¤tPath)
{
const std::string nodeName{pSimGeom->GetCurrentNode()->GetName()};
if (nodeName.find(targetName) != std::string::npos)
{
nodePaths.emplace_back(currentPath);
}
else
{
for (unsigned int i = 0; i < pSimGeom->GetCurrentNode()->GetNdaughters(); ++i)
{
pSimGeom->CdDown(i);
currentPath.emplace_back(i);
RecursiveGeometrySearch(pSimGeom, targetName, nodePaths, currentPath);
pSimGeom->CdUp();
currentPath.pop_back();
}
}
return;
}
//------------------------------------------------------------------------------------------------------------------------------------------
void MakePandoraTPC(const pandora::Pandora *const pPrimaryPandora, const Parameters ¶meters, LArNDGeomSimple &geom,
const std::unique_ptr<TGeoHMatrix> &pVolMatrix, const TGeoNode *pTargetNode, const unsigned int tpcNumber)
{
// Get the BBox dimensions from the placement volume, which is assumed to be a cube
TGeoVolume *pCurrentVol = pTargetNode->GetVolume();
TGeoShape *pCurrentShape = pCurrentVol->GetShape();
// pCurrentShape->InspectShape();
TGeoBBox *pBox = dynamic_cast<TGeoBBox *>(pCurrentShape);
// Now can get origin/width data from the BBox
const double dx = pBox->GetDX() * parameters.m_lengthScale; // Note these are the half widths
const double dy = pBox->GetDY() * parameters.m_lengthScale;
const double dz = pBox->GetDZ() * parameters.m_lengthScale;
const double *pOrigin = pBox->GetOrigin();
// std::cout << "Origin = (" << pOrigin[0] << ", " << pOrigin[1] << ", " << pOrigin[2] << ")" << std::endl;
// Translate local origin to global coordinates
double level1[3] = {0.0, 0.0, 0.0};
pTargetNode->LocalToMasterVect(pOrigin, level1);
// std::cout << "Level1 = (" << level1[0] << ", " << level1[1] << ", " << level1[2] << ")" << std::endl;
// Can now create a geometry using the found parameters
PandoraApi::Geometry::LArTPC::Parameters geoparameters;
try
{
const double *pVolTrans = pVolMatrix->GetTranslation();
const double centreX = (level1[0] + pVolTrans[0]) * parameters.m_lengthScale;
const double centreY = (level1[1] + pVolTrans[1]) * parameters.m_lengthScale;
const double centreZ = (level1[2] + pVolTrans[2]) * parameters.m_lengthScale;
geoparameters.m_centerX = centreX;
geoparameters.m_centerY = centreY;
geoparameters.m_centerZ = centreZ;
geoparameters.m_widthX = dx * 2.0;
geoparameters.m_widthY = dy * 2.0;
geoparameters.m_widthZ = dz * 2.0;
// ATTN: parameters past here taken from uboone
geoparameters.m_larTPCVolumeId = tpcNumber;
geoparameters.m_wirePitchU = 0.300000011921;
geoparameters.m_wirePitchV = 0.300000011921;
geoparameters.m_wirePitchW = 0.300000011921;
geoparameters.m_wireAngleU = 1.04719758034;
geoparameters.m_wireAngleV = -1.04719758034;
geoparameters.m_wireAngleW = 0.0;
geoparameters.m_sigmaUVW = 1;
geoparameters.m_isDriftInPositiveX = tpcNumber % 2;
geom.AddTPC(centreX - dx, centreX + dx, centreY - dy, centreY + dy, centreZ - dz, centreZ + dz, tpcNumber);
std::cout << "Creating TPC: " << centreX - dx << ", " << centreX + dx << ", " << centreY - dy << ", " << centreY + dy << ", "
<< centreZ - dz << ", " << centreZ + dz << std::endl;
}
catch (const pandora::StatusCodeException &)
{
std::cout << "CreatePandoraLArTPCs - invalid tpc parameter provided" << std::endl;
}
try
{
PANDORA_THROW_RESULT_IF(pandora::STATUS_CODE_SUCCESS, !=, PandoraApi::Geometry::LArTPC::Create(*pPrimaryPandora, geoparameters));
}
catch (const pandora::StatusCodeException &)
{
std::cout << "CreatePandoraLArTPCs - unable to create tpc, insufficient or "
"invalid information supplied"
<< std::endl;
}
}
//------------------------------------------------------------------------------------------------------------------------------------------
void ProcessEvents(const Parameters ¶meters, const Pandora *const pPrimaryPandora, const LArNDGeomSimple &geom)
{
if (parameters.m_dataFormat == Parameters::LArNDFormat::EDepSim)
{
#ifdef USE_EDEPSIM
ProcessEDepSimEvents(parameters, pPrimaryPandora, geom);
#endif
}
else if (parameters.m_dataFormat == Parameters::LArNDFormat::SED)
{
ProcessSEDEvents(parameters, pPrimaryPandora, geom);
}
else
{
ProcessSPEvents(parameters, pPrimaryPandora, geom);
}
}
//------------------------------------------------------------------------------------------------------------------------------------------
void ProcessSPEvents(const Parameters ¶meters, const Pandora *const pPrimaryPandora, const LArNDGeomSimple &geom)
{
TFile *fileSource = TFile::Open(parameters.m_inputFileName.c_str(), "READ");
if (!fileSource)
{
std::cout << "Error in ProcessSPEvents(): can't open file " << parameters.m_inputFileName << std::endl;
return;
}
TTree *ndsptree = dynamic_cast<TTree *>(fileSource->Get(parameters.m_inputTreeName.c_str()));
if (!ndsptree)
{
std::cout << "Could not find the event tree " << parameters.m_inputTreeName << std::endl;
fileSource->Close();
return;
}
std::unique_ptr<LArSP> larsp =
parameters.m_dataFormat == Parameters::LArNDFormat::SPMC ? std::make_unique<LArSPMC>(ndsptree) : std::make_unique<LArSP>(ndsptree);
// Factory for creating LArCaloHits
lar_content::LArCaloHitFactory m_larCaloHitFactory;
// Voxel width
const float voxelWidth(parameters.m_voxelWidth);
// Total number of entries in the TTree
const int nEntries(ndsptree->GetEntries());
// Starting event
const int startEvt = parameters.m_nEventsToSkip > 0 ? parameters.m_nEventsToSkip : 0;
// Number of events to process, up to nEntries
const int nProcess = parameters.m_nEventsToProcess > 0 ? parameters.m_nEventsToProcess : nEntries;
// End event, up to nEntries
const int endEvt = (startEvt + nProcess) < nEntries ? startEvt + nProcess : nEntries;
std::cout << "Start event is " << startEvt << " and end event is " << endEvt - 1 << std::endl;
for (int iEvt = startEvt; iEvt < endEvt; iEvt++)
{
if (parameters.m_shouldDisplayEventNumber)
std::cout << std::endl << " PROCESSING EVENT: " << iEvt << std::endl << std::endl;
ndsptree->GetEntry(iEvt);
// Some truth information first
MCParticleEnergyMap MCEnergyMap;
if (parameters.m_dataFormat == Parameters::LArNDFormat::SPMC)
{
LArSPMC *larspmc = dynamic_cast<LArSPMC *>(larsp.get());
// Create MCParticles from Geant4 trajectories
for (size_t imcp = 0; imcp < larspmc->m_mcp_id->size(); ++imcp)
{
MCEnergyMap[(*larspmc->m_mcp_id)[imcp]] = (*larspmc->m_mcp_energy)[imcp];
}
CreateSPMCParticles(*larspmc, pPrimaryPandora, parameters);
}
int hitCounter(0);
// Loop over the space points and make them into caloHits
for (size_t isp = 0; isp < larsp->m_x->size(); ++isp)
{
const float voxelX = (*larsp->m_x)[isp];
const float voxelY = (*larsp->m_y)[isp];
const float voxelZ = (*larsp->m_z)[isp];
const float voxelE = (*larsp->m_charge)[isp];
// Skip this hit if its coordinates or energy are NaNs
if (std::isnan(voxelX) || std::isnan(voxelY) || std::isnan(voxelZ) || std::isnan(voxelE))
{
std::cout << "Ignoring hit " << isp << " which contains NaNs: (" << voxelX << ", " << voxelY << ", " << voxelZ
<< "), E = " << voxelE << std::endl;
continue;
}
const pandora::CartesianVector voxelPos(voxelX, voxelY, voxelZ);
const float MipE{0.00075};
const float voxelMipEquivalentE = voxelE / MipE;
const int tpcID(geom.GetTPCNumber(voxelPos));
lar_content::LArCaloHitParameters caloHitParameters;
caloHitParameters.m_positionVector = voxelPos;
caloHitParameters.m_expectedDirection = pandora::CartesianVector(0.f, 0.f, 1.f);
caloHitParameters.m_cellNormalVector = pandora::CartesianVector(0.f, 0.f, 1.f);
caloHitParameters.m_cellGeometry = pandora::RECTANGULAR;
caloHitParameters.m_cellSize0 = voxelWidth;
caloHitParameters.m_cellSize1 = voxelWidth;
caloHitParameters.m_cellThickness = voxelWidth;
caloHitParameters.m_nCellRadiationLengths = 1.f;
caloHitParameters.m_nCellInteractionLengths = 1.f;
caloHitParameters.m_time = 0.f;
caloHitParameters.m_inputEnergy = voxelE;
caloHitParameters.m_mipEquivalentEnergy = voxelMipEquivalentE;
caloHitParameters.m_electromagneticEnergy = voxelE;
caloHitParameters.m_hadronicEnergy = voxelE;
caloHitParameters.m_isDigital = false;
caloHitParameters.m_hitType = pandora::TPC_3D;
caloHitParameters.m_hitRegion = pandora::SINGLE_REGION;
caloHitParameters.m_layer = 0;
caloHitParameters.m_isInOuterSamplingLayer = false;
caloHitParameters.m_pParentAddress = (void *)(static_cast<uintptr_t>(++hitCounter));
caloHitParameters.m_larTPCVolumeId = tpcID < 0 ? 0 : tpcID;
caloHitParameters.m_daughterVolumeId = 0;
// Only used for truth
int trackID{0};
float energyFrac{0.f};
// Set calo hit to MCParticle relation using trackID
if (parameters.m_dataFormat == Parameters::LArNDFormat::SPMC)
{
LArSPMC *larspmc = dynamic_cast<LArSPMC *>(larsp.get());
const std::vector<float> mcContribs = (*larspmc->m_hit_packetFrac)[isp];
const int biggestContribIndex = std::distance(mcContribs.begin(), std::max_element(mcContribs.begin(), mcContribs.end()));
trackID = (*larspmc->m_hit_particleID)[isp][biggestContribIndex];
// Due to the merging of hits, the contributions can sometimes add up to more than 1.
// Normalise first
const float sum = std::accumulate(mcContribs.begin(), mcContribs.end(), 0.f);
energyFrac = mcContribs[biggestContribIndex] / sum;
// Make sure the energy fraction is not larger than 1
if (energyFrac > 1.f + std::numeric_limits<float>::epsilon())
energyFrac = 1.f;
if (std::find(larspmc->m_mcp_id->begin(), larspmc->m_mcp_id->end(), trackID) == larspmc->m_mcp_id->end())
std::cout << "Problem? Could not find MC particle with ID " << trackID << std::endl;
}
if (parameters.m_use3D)
PANDORA_THROW_RESULT_IF(
pandora::STATUS_CODE_SUCCESS, !=, PandoraApi::CaloHit::Create(*pPrimaryPandora, caloHitParameters, m_larCaloHitFactory));
if (parameters.m_dataFormat == Parameters::LArNDFormat::SPMC)
PandoraApi::SetCaloHitToMCParticleRelationship(*pPrimaryPandora, (void *)((intptr_t)hitCounter), (void *)((intptr_t)trackID), energyFrac);
if (parameters.m_useLArTPC)
{
// Create LArCaloHits for U, V and W views assuming x is the common drift coordinate
const float x0_cm(voxelPos.GetX());
const float y0_cm(voxelPos.GetY());
const float z0_cm(voxelPos.GetZ());
// U view
lar_content::LArCaloHitParameters caloHitPars_UView(caloHitParameters);
caloHitPars_UView.m_hitType = pandora::TPC_VIEW_U;
caloHitPars_UView.m_pParentAddress = (void *)(intptr_t(++hitCounter));
const float upos_cm(pPrimaryPandora->GetPlugins()->GetLArTransformationPlugin()->YZtoU(y0_cm, z0_cm));
caloHitPars_UView.m_positionVector = pandora::CartesianVector(x0_cm, 0.f, upos_cm);
PANDORA_THROW_RESULT_IF(
pandora::STATUS_CODE_SUCCESS, !=, PandoraApi::CaloHit::Create(*pPrimaryPandora, caloHitPars_UView, m_larCaloHitFactory));
if (parameters.m_dataFormat == Parameters::LArNDFormat::SPMC)
PandoraApi::SetCaloHitToMCParticleRelationship(
*pPrimaryPandora, (void *)((intptr_t)hitCounter), (void *)((intptr_t)trackID), energyFrac);
// V view
lar_content::LArCaloHitParameters caloHitPars_VView(caloHitParameters);
caloHitPars_VView.m_hitType = pandora::TPC_VIEW_V;
caloHitPars_VView.m_pParentAddress = (void *)(intptr_t(++hitCounter));
const float vpos_cm(pPrimaryPandora->GetPlugins()->GetLArTransformationPlugin()->YZtoV(y0_cm, z0_cm));
caloHitPars_VView.m_positionVector = pandora::CartesianVector(x0_cm, 0.f, vpos_cm);
PANDORA_THROW_RESULT_IF(
pandora::STATUS_CODE_SUCCESS, !=, PandoraApi::CaloHit::Create(*pPrimaryPandora, caloHitPars_VView, m_larCaloHitFactory));
if (parameters.m_dataFormat == Parameters::LArNDFormat::SPMC)
PandoraApi::SetCaloHitToMCParticleRelationship(
*pPrimaryPandora, (void *)((intptr_t)hitCounter), (void *)((intptr_t)trackID), energyFrac);
// W view
lar_content::LArCaloHitParameters caloHitPars_WView(caloHitParameters);
caloHitPars_WView.m_hitType = pandora::TPC_VIEW_W;
caloHitPars_WView.m_pParentAddress = (void *)(intptr_t(++hitCounter));
const float wpos_cm(pPrimaryPandora->GetPlugins()->GetLArTransformationPlugin()->YZtoW(y0_cm, z0_cm));
caloHitPars_WView.m_positionVector = pandora::CartesianVector(x0_cm, 0.f, wpos_cm);
PANDORA_THROW_RESULT_IF(
pandora::STATUS_CODE_SUCCESS, !=, PandoraApi::CaloHit::Create(*pPrimaryPandora, caloHitPars_WView, m_larCaloHitFactory));
if (parameters.m_dataFormat == Parameters::LArNDFormat::SPMC)
PandoraApi::SetCaloHitToMCParticleRelationship(
*pPrimaryPandora, (void *)((intptr_t)hitCounter), (void *)((intptr_t)trackID), energyFrac);
}
} // end space point loop
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, PandoraApi::ProcessEvent(*pPrimaryPandora));
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, PandoraApi::Reset(*pPrimaryPandora));
} // end event loop
fileSource->Close();
}
//------------------------------------------------------------------------------------------------------------------------------------------
void CreateSPMCParticles(const LArSPMC &larspmc, const pandora::Pandora *const pPrimaryPandora, const Parameters ¶meters)
{
lar_content::LArMCParticleFactory mcParticleFactory;
// Offset neutrino IDs by 10^8
const int nuidoffset(100000000);
std::cout << "Read in " << larspmc.m_nuPDG->size() << " true neutrinos" << std::endl;
std::map<int, int> neutrinoIdToIndex;
// Create MC neutrinos
for (size_t i = 0; i < larspmc.m_nuPDG->size(); ++i)
{
const int neutrinoID = nuidoffset + (*larspmc.m_nuID)[i];
neutrinoIdToIndex[neutrinoID] = i;
const int neutrinoPDG = (*larspmc.m_nuPDG)[i];
const std::string reaction = GetNuanceReaction((*larspmc.m_ccnc)[i], (*larspmc.m_mode)[i]);
const int nuanceCode = GetNuanceCode(reaction);
const float nuVtxX = (*larspmc.m_nuvtxx)[i] * parameters.m_lengthScale;
const float nuVtxY = (*larspmc.m_nuvtxy)[i] * parameters.m_lengthScale;
const float nuVtxZ = (*larspmc.m_nuvtxz)[i] * parameters.m_lengthScale;
const float nuE = (*larspmc.m_nue)[i] * parameters.m_energyScale;
const float nuPx = (*larspmc.m_nupx)[i];
const float nuPy = (*larspmc.m_nupy)[i];
const float nuPz = (*larspmc.m_nupz)[i];
lar_content::LArMCParticleParameters mcNeutrinoParameters;
mcNeutrinoParameters.m_nuanceCode = nuanceCode;
mcNeutrinoParameters.m_process = lar_content::MC_PROC_INCIDENT_NU;
mcNeutrinoParameters.m_energy = nuE;
mcNeutrinoParameters.m_momentum = pandora::CartesianVector(nuPx, nuPy, nuPz);
mcNeutrinoParameters.m_vertex = pandora::CartesianVector(nuVtxX, nuVtxY, nuVtxZ);
mcNeutrinoParameters.m_endpoint = pandora::CartesianVector(nuVtxX, nuVtxY, nuVtxZ);
mcNeutrinoParameters.m_particleId = neutrinoPDG;
mcNeutrinoParameters.m_mcParticleType = pandora::MC_3D;
mcNeutrinoParameters.m_pParentAddress = (void *)((intptr_t)neutrinoID);
PANDORA_THROW_RESULT_IF(
pandora::STATUS_CODE_SUCCESS, !=, PandoraApi::MCParticle::Create(*pPrimaryPandora, mcNeutrinoParameters, mcParticleFactory));
}
// Specify maximum mcpID for hits in a given event to ensure unique trackIDs: 10^6
const int max_mcpID{1000000};
// Create MC particles
for (size_t i = 0; i < larspmc.m_mcp_id->size(); ++i)
{
// LArMCParticle parameters
lar_content::LArMCParticleParameters mcParticleParameters;
// Initial momentum and energy in GeV
const float px = (*larspmc.m_mcp_px)[i] * parameters.m_energyScale;
const float py = (*larspmc.m_mcp_py)[i] * parameters.m_energyScale;
const float pz = (*larspmc.m_mcp_pz)[i] * parameters.m_energyScale;
const float energy = (*larspmc.m_mcp_energy)[i] * parameters.m_energyScale;
mcParticleParameters.m_energy = energy;
mcParticleParameters.m_momentum = pandora::CartesianVector(px, py, pz);
// Particle codes
mcParticleParameters.m_particleId = (*larspmc.m_mcp_pdg)[i];
mcParticleParameters.m_mcParticleType = pandora::MC_3D;
// Neutrino info
const int nuid = (*larspmc.m_mcp_nuid)[i];
const int neutrinoID = nuid + nuidoffset;
const int nuIndex = neutrinoIdToIndex[neutrinoID];
const std::string reaction = GetNuanceReaction((*larspmc.m_ccnc)[nuIndex], (*larspmc.m_mode)[nuIndex]);
mcParticleParameters.m_nuanceCode = GetNuanceCode(reaction);
// Set unique parent integer address using trackID. Need to add a large enough
// offset of 10^6 to make these unique when we have more than 1 neutrino per event.
// The mcp_id's reset (to zero) per neutrino interaction vertex, and the offset
// should allow up to 10^6 hits for each neutrino. The true neutrino IDs (nuID)
// found earlier are offset by 10^8, which should allow unique trackID's for up to
// 100 neutrino interactions per event, each containing up to 10^6 hits
// Make sure mcpID is not equal to or larger than the max_mcpID offset (10^6)
const int mcpID = (*larspmc.m_mcp_id)[i];
if (mcpID >= max_mcpID)
{
std::cout << "Ignoring hit " << i << " with mcpID >= " << max_mcpID << std::endl;
continue;
}
const int offsetID = max_mcpID * nuIndex;
const int trackID = mcpID + offsetID;
// Make sure trackID is not equal to or larger than nuidoffset (10^8)
if (trackID >= nuidoffset)
{
std::cout << "Ignoring hit " << i << " with trackID " << trackID << " >= " << nuidoffset << std::endl;
continue;
}
mcParticleParameters.m_pParentAddress = (void *)((intptr_t)trackID);
// Start and end points in cm
const float startx = (*larspmc.m_mcp_startx)[i] * parameters.m_lengthScale;
const float starty = (*larspmc.m_mcp_starty)[i] * parameters.m_lengthScale;
const float startz = (*larspmc.m_mcp_startz)[i] * parameters.m_lengthScale;
mcParticleParameters.m_vertex = pandora::CartesianVector(startx, starty, startz);
const float endx = (*larspmc.m_mcp_endx)[i] * parameters.m_lengthScale;
const float endy = (*larspmc.m_mcp_endy)[i] * parameters.m_lengthScale;
const float endz = (*larspmc.m_mcp_endz)[i] * parameters.m_lengthScale;
mcParticleParameters.m_endpoint = pandora::CartesianVector(endx, endy, endz);
// Process ID
mcParticleParameters.m_process = lar_content::MC_PROC_UNKNOWN;
// Create MCParticle
try
{
PANDORA_THROW_RESULT_IF(
pandora::STATUS_CODE_SUCCESS, !=, PandoraApi::MCParticle::Create(*pPrimaryPandora, mcParticleParameters, mcParticleFactory));
}
catch (const pandora::StatusCodeException &)
{
std::cout << "Unable to create MCParticle " << i << " : invalid info supplied, e.g. non-unique trackID or NaNs" << std::endl;
continue;
}
// Set parent relationships
const int mcpMother = (*larspmc.m_mcp_mother)[i];
// Add offsetID to particles that are not the primary neutrinos
const int parentID = mcpMother == -1 ? mcpMother : (mcpMother + offsetID);
if (parentID == -1) // link to mc neutrino
{
PANDORA_THROW_RESULT_IF(pandora::STATUS_CODE_SUCCESS, !=,
PandoraApi::SetMCParentDaughterRelationship(*pPrimaryPandora, (void *)((intptr_t)neutrinoID), (void *)((intptr_t)trackID)));
}
else
{
PANDORA_THROW_RESULT_IF(pandora::STATUS_CODE_SUCCESS, !=,
PandoraApi::SetMCParentDaughterRelationship(*pPrimaryPandora, (void *)((intptr_t)parentID), (void *)((intptr_t)trackID)));
}
}
}
//------------------------------------------------------------------------------------------------------------------------------------------
#ifdef USE_EDEPSIM
void ProcessEDepSimEvents(const Parameters ¶meters, const Pandora *const pPrimaryPandora, const LArNDGeomSimple &geom)
{
TFile *fileSource = TFile::Open(parameters.m_inputFileName.c_str(), "READ");
if (!fileSource)
{
std::cout << "Error in ProcessEDepSimEvents(): can't open file " << parameters.m_inputFileName << std::endl;
return;
}
TTree *pEDepSimTree = dynamic_cast<TTree *>(fileSource->Get(parameters.m_inputTreeName.c_str()));
if (!pEDepSimTree)
{
std::cout << "Could not find the event tree " << parameters.m_inputTreeName << std::endl;
fileSource->Close();
return;
}
TG4Event *pEDepSimEvent(nullptr);
pEDepSimTree->SetBranchAddress("Event", &pEDepSimEvent);
// Factory for creating LArCaloHits
lar_content::LArCaloHitFactory m_larCaloHitFactory;
const LArGrid grid = parameters.m_useModularGeometry ? MakeVoxelisationGrid(geom, parameters) : MakeVoxelisationGrid(pPrimaryPandora, parameters);
std::cout << "Total grid volume: bot = " << grid.m_bottom << "\n top = " << grid.m_top << std::endl;
std::cout << "Making voxels with size " << grid.m_binWidths << std::endl;
// Total number of entries in the TTree
const int nEntries(pEDepSimTree->GetEntries());
// Starting event
const int startEvt = parameters.m_nEventsToSkip > 0 ? parameters.m_nEventsToSkip : 0;
// Number of events to process, up to nEntries
const int nProcess = parameters.m_nEventsToProcess > 0 ? parameters.m_nEventsToProcess : nEntries;
// End event, up to nEntries
const int endEvt = (startEvt + nProcess) < nEntries ? startEvt + nProcess : nEntries;
std::cout << "Start event is " << startEvt << " and end event is " << endEvt - 1 << std::endl;
for (int iEvt = startEvt; iEvt < endEvt; iEvt++)
{
if (parameters.m_shouldDisplayEventNumber)
std::cout << std::endl << " PROCESSING EVENT: " << iEvt << std::endl << std::endl;
pEDepSimTree->GetEntry(iEvt);
if (!pEDepSimEvent)
return;
// Create MCParticles from Geant4 trajectories
const MCParticleEnergyMap MCEnergyMap = CreateEDepSimMCParticles(*pEDepSimEvent, pPrimaryPandora, parameters);
int hitCounter{0};
// Loop over (EDep) hits, which are stored in the hit segment detectors.
// Only process hits from the detector we are interested in
for (TG4HitSegmentDetectors::iterator detector = pEDepSimEvent->SegmentDetectors.begin();
detector != pEDepSimEvent->SegmentDetectors.end(); ++detector)
{
if (detector->first.find(parameters.m_sensitiveDetName) == std::string::npos)
{
std::cout << "Skipping sensitive detector " << detector->first << "; expecting " << parameters.m_sensitiveDetName << std::endl;
continue;
}
std::cout << "Show hits for " << detector->first << " (" << detector->second.size() << " hits)" << std::endl;
std::cout << " " << std::endl;
LArVoxelList voxelList;
// Loop over hit segments and create voxels from them
for (TG4HitSegment &g4Hit : detector->second)
{
const TLorentzVector &hitStart = g4Hit.GetStart();
const TLorentzVector &hitStop = g4Hit.GetStop();
const pandora::CartesianVector start(hitStart.X(), hitStart.Y(), hitStart.Z());
const pandora::CartesianVector end(hitStop.X(), hitStop.Y(), hitStop.Z());
const float energy = g4Hit.GetEnergyDeposit();
const int g4id = g4Hit.GetContributors()[0];
const LArHitInfo hitInfo(start, end, energy, g4id, parameters.m_lengthScale, parameters.m_energyScale);
const LArVoxelList currentVoxelList = MakeVoxels(hitInfo, grid, parameters, geom);
for (const LArVoxel &voxel : currentVoxelList)
voxelList.emplace_back(voxel);
}
std::cout << "Produced " << voxelList.size() << " voxels from " << detector->second.size() << " hit segments." << std::endl;
// Merge voxels with the same IDs
const LArVoxelList mergedVoxels = MergeSameVoxels(voxelList);
std::cout << "Produced " << mergedVoxels.size() << " merged voxels from " << voxelList.size() << " voxels." << std::endl;
voxelList.clear();
// Stop processing the event if we have too many voxels: reco takes too long
if (parameters.m_maxMergedVoxels > 0 && mergedVoxels.size() > parameters.m_maxMergedVoxels)
{
std::cout << "SKIPPING EVENT: number of merged voxels " << mergedVoxels.size() << " > " << parameters.m_maxMergedVoxels << std::endl;
break;
}
MakeCaloHitsFromVoxels(mergedVoxels, MCEnergyMap, pPrimaryPandora, parameters, hitCounter);
} // end segment detector loop
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, PandoraApi::ProcessEvent(*pPrimaryPandora));
PANDORA_THROW_RESULT_IF(STATUS_CODE_SUCCESS, !=, PandoraApi::Reset(*pPrimaryPandora));
}
// Close input file
fileSource->Close();
}
//------------------------------------------------------------------------------------------------------------------------------------------
MCParticleEnergyMap CreateEDepSimMCParticles(const TG4Event &event, const pandora::Pandora *const pPrimaryPandora, const Parameters ¶meters)
{
// Create map of trackID and energy
MCParticleEnergyMap energyMap;
if (!pPrimaryPandora)
{
std::cout << "Could not create MC particles, since pPrimaryPandora is null" << std::endl;
return energyMap;
}
lar_content::LArMCParticleFactory mcParticleFactory;
// Loop over the initial primary neutrinos, storing their IDs and vertex positions inside vectors
// since we need these to work out the associated neutrino ancestors for all MC trajectories
std::vector<pandora::CartesianVector> neutrinoVertices;
std::vector<int> neutrinoIDVector, nuanceCodeVector;
for (size_t i = 0; i < event.Primaries.size(); ++i)
{
const TG4PrimaryVertex &g4PrimaryVtx = event.Primaries[i];
const TLorentzVector neutrinoVtx = g4PrimaryVtx.GetPosition() * parameters.m_lengthScale;
std::cout << "Neutrino vertex = " << neutrinoVtx.X() << ", " << neutrinoVtx.Y() << ", " << neutrinoVtx.Z() << std::endl;
const std::string reaction(g4PrimaryVtx.GetReaction());
const int nuanceCode = GetNuanceCode(reaction);
// Get the primary vertex particle information
if (g4PrimaryVtx.Informational.size() > 0)
{
const TG4PrimaryVertex &g4Info = g4PrimaryVtx.Informational[0];
// Get the first primary particle, which should be the neutrino.
// Other primaries would be nuclei etc.
if (g4Info.Particles.size() > 0)
{
const TG4PrimaryParticle &g4Primary = g4Info.Particles[0];
// The primary neutrinoIDs are usually the same value in a full spill event, e.g. -2.
// Introduce an artificial offset (the primary vertex number "i") to give unique IDs
const int neutrinoID = g4Primary.GetTrackId() - i;
const int neutrinoPDG = g4Primary.GetPDGCode();
const TLorentzVector neutrinoP4 = g4Primary.GetMomentum() * parameters.m_energyScale;
std::cout << "Neutrino ID = " << neutrinoID << ", PDG = " << neutrinoPDG << ", E = " << neutrinoP4.E()
<< ", px = " << neutrinoP4.Px() << ", py = " << neutrinoP4.Py() << ", pz = " << neutrinoP4.Pz() << std::endl;
lar_content::LArMCParticleParameters mcNeutrinoParameters;
mcNeutrinoParameters.m_nuanceCode = nuanceCode;
mcNeutrinoParameters.m_process = lar_content::MC_PROC_INCIDENT_NU;
mcNeutrinoParameters.m_energy = neutrinoP4.E();
mcNeutrinoParameters.m_momentum = pandora::CartesianVector(neutrinoP4.Px(), neutrinoP4.Py(), neutrinoP4.Pz());
mcNeutrinoParameters.m_vertex = pandora::CartesianVector(neutrinoVtx.X(), neutrinoVtx.Y(), neutrinoVtx.Z());
mcNeutrinoParameters.m_endpoint = pandora::CartesianVector(neutrinoVtx.X(), neutrinoVtx.Y(), neutrinoVtx.Z());
mcNeutrinoParameters.m_particleId = neutrinoPDG;
mcNeutrinoParameters.m_mcParticleType = pandora::MC_3D;
mcNeutrinoParameters.m_pParentAddress = (void *)((intptr_t)neutrinoID);
PANDORA_THROW_RESULT_IF(pandora::STATUS_CODE_SUCCESS, !=,
PandoraApi::MCParticle::Create(*pPrimaryPandora, mcNeutrinoParameters, mcParticleFactory));
// Keep track of neutrino vertex, ID and reaction code
neutrinoVertices.emplace_back(mcNeutrinoParameters.m_vertex.Get());
neutrinoIDVector.emplace_back(neutrinoID);
nuanceCodeVector.emplace_back(nuanceCode);
}
}
}
std::cout << "Creating MC Particles from the Geant4 event trajectories" << std::endl;
// Loop over trajectories
std::cout << "Number of trajectories = " << event.Trajectories.size() << std::endl;
// Keep track of the primary Nuance codes for the trajectories using a map[trackID] container.
// The trackIDs and their parentIDs will be in cascading historical order in the trajectory loop,
// meaning that a given trajectory's parentID will have been previously stored in the map
std::map<int, int> trajNuanceCodes;
for (const TG4Trajectory &g4Traj : event.Trajectories)
{
// LArMCParticle parameters
lar_content::LArMCParticleParameters mcParticleParameters;
// Initial momentum and energy in GeV (Geant4 uses MeV)
const TLorentzVector initMtm(g4Traj.GetInitialMomentum() * parameters.m_energyScale);
const float energy(initMtm.E());
mcParticleParameters.m_energy = energy;
mcParticleParameters.m_momentum = pandora::CartesianVector(initMtm.X(), initMtm.Y(), initMtm.Z());
// Particle codes
mcParticleParameters.m_particleId = g4Traj.GetPDGCode();
mcParticleParameters.m_mcParticleType = pandora::MC_3D;
// Set unique parent integer address using trackID
const int trackID = g4Traj.GetTrackId();
mcParticleParameters.m_pParentAddress = (void *)((intptr_t)trackID);
// Start and end points in cm (Geant4 uses mm)
const std::vector<TG4TrajectoryPoint> trajPoints = g4Traj.Points;
const int nPoints(trajPoints.size());
if (nPoints > 1)
{
const TG4TrajectoryPoint start = trajPoints[0];
const TLorentzVector vertex = start.GetPosition() * parameters.m_lengthScale;
mcParticleParameters.m_vertex = pandora::CartesianVector(vertex.X(), vertex.Y(), vertex.Z());
const TG4TrajectoryPoint end = trajPoints[nPoints - 1];
const TLorentzVector endPos = end.GetPosition() * parameters.m_lengthScale;
mcParticleParameters.m_endpoint = pandora::CartesianVector(endPos.X(), endPos.Y(), endPos.Z());
// Process ID
mcParticleParameters.m_process = start.GetProcess();
}
else
{
// Should not reach here, but set sensible values just in case
mcParticleParameters.m_vertex = pandora::CartesianVector(0.f, 0.f, 0.f);
mcParticleParameters.m_endpoint = pandora::CartesianVector(0.f, 0.f, 0.f);
mcParticleParameters.m_process = lar_content::MC_PROC_UNKNOWN;
}
// Set parent relationship and nuance interaction code
mcParticleParameters.m_nuanceCode = 0;
const int trajParentID = g4Traj.GetParentId();
int parentID{trajParentID};
if (trajParentID < 0) // link to MC neutrino
{
// In full spill events, GetParentId() will always return -1 for those particles originating from
// any neutrino interaction vertex. So we need to compare and match this track's vertex position
// with the list of primary neutrino vertices to get the required unique neutrino parent ID entry
// and Nuance reaction code. This also works for single neutrino events
for (size_t iV = 0; iV < neutrinoVertices.size(); ++iV)
{
// Compare the distance squared between the trajectory and neutrino vertices
const pandora::CartesianVector nuVtx = neutrinoVertices[iV];
if (nuVtx.GetDistanceSquared(mcParticleParameters.m_vertex.Get()) < std::numeric_limits<float>::epsilon())
{
// Vertex positions match
parentID = neutrinoIDVector[iV];
const int nuanceValue = nuanceCodeVector[iV];
mcParticleParameters.m_nuanceCode = nuanceValue;
trajNuanceCodes[trackID] = nuanceValue;
break;
}
}
}
else
{
// Retrieve the Nuance code using its parentID entry
const int nuanceValue = trajNuanceCodes.find(parentID) != trajNuanceCodes.end() ? trajNuanceCodes[parentID] : 0;
// Set the Nuance code for this trackID; any secondary particle will then retrieve this value
trajNuanceCodes[trackID] = nuanceValue;
mcParticleParameters.m_nuanceCode = nuanceValue;
}
// Create MCParticle
PANDORA_THROW_RESULT_IF(
pandora::STATUS_CODE_SUCCESS, !=, PandoraApi::MCParticle::Create(*pPrimaryPandora, mcParticleParameters, mcParticleFactory));
// Store the parentID, which will recursively find the primary neutrino if required
PANDORA_THROW_RESULT_IF(pandora::STATUS_CODE_SUCCESS, !=,
PandoraApi::SetMCParentDaughterRelationship(*pPrimaryPandora, (void *)((intptr_t)parentID), (void *)((intptr_t)trackID)));
// Store particle energy for given trackID
energyMap[trackID] = energy;
}
return energyMap;
}
#endif
//------------------------------------------------------------------------------------------------------------------------------------------
void ProcessSEDEvents(const Parameters ¶meters, const Pandora *const pPrimaryPandora, const LArNDGeomSimple &geom)
{
std::cout << "About to process SED events" << std::endl;
TFile *fileSource = TFile::Open(parameters.m_inputFileName.c_str(), "READ");
if (!fileSource)
{
std::cout << "Error in ProcessSEDEvents(): can't open file " << parameters.m_inputFileName << std::endl;
return;
}
TTree *ndsim = dynamic_cast<TTree *>(fileSource->Get(parameters.m_inputTreeName.c_str()));
if (!ndsim)
{
std::cout << "Could not find the event tree " << parameters.m_inputTreeName << std::endl;
fileSource->Close();
return;
}
const LArSED larsed(ndsim);
const LArGrid grid = parameters.m_useModularGeometry ? MakeVoxelisationGrid(geom, parameters) : MakeVoxelisationGrid(pPrimaryPandora, parameters);
std::cout << "Total grid volume: bot = " << grid.m_bottom << "\n top = " << grid.m_top << std::endl;
std::cout << "Making voxels with size " << grid.m_binWidths << std::endl;
// Total number of entries in the TTree
const int nEntries(ndsim->GetEntries());
// Starting event
const int startEvt = parameters.m_nEventsToSkip > 0 ? parameters.m_nEventsToSkip : 0;
// Number of events to process, up to nEntries
const int nProcess = parameters.m_nEventsToProcess > 0 ? parameters.m_nEventsToProcess : nEntries;
// End event, up to nEntries
const int endEvt = (startEvt + nProcess) < nEntries ? startEvt + nProcess : nEntries;
std::cout << "Start event is " << startEvt << " and end event is " << endEvt - 1 << std::endl;
for (int iEvt = startEvt; iEvt < endEvt; iEvt++)
{
if (parameters.m_shouldDisplayEventNumber)
std::cout << std::endl << " PROCESSING EVENT: " << iEvt << std::endl << std::endl;
ndsim->GetEntry(iEvt);
// Create MCParticles from Geant4 trajectories
MCParticleEnergyMap MCEnergyMap;
for (size_t imcp = 0; imcp < larsed.m_mcp_id->size(); ++imcp)
{
MCEnergyMap[(*larsed.m_mcp_id)[imcp]] = (*larsed.m_mcp_energy)[imcp];
}
CreateSEDMCParticles(larsed, pPrimaryPandora, parameters);
LArVoxelList voxelList;
// Loop over the energy deposits and create voxels
for (size_t ised = 0; ised < larsed.m_sed_det->size(); ++ised)
{
if ((*larsed.m_sed_det)[ised] == parameters.m_sensitiveDetName) // usually volTPCActive
{
const float startx = (*larsed.m_sed_startx)[ised];
const float starty = (*larsed.m_sed_starty)[ised];
const float startz = (*larsed.m_sed_startz)[ised];
const float endx = (*larsed.m_sed_endx)[ised];
const float endy = (*larsed.m_sed_endy)[ised];
const float endz = (*larsed.m_sed_endz)[ised];
const float energy = (*larsed.m_sed_energy)[ised] * 1e-3; // sed_energy is in MeV, convert it to GeV
const int g4id = std::abs((*larsed.m_sed_id)[ised]);
const pandora::CartesianVector start(startx, starty, startz);
const pandora::CartesianVector end(endx, endy, endz);