tracking::sim::PropagatorStepWriter Class Reference

Classes
struct	Config

Public Member Functions
	PropagatorStepWriter (const Config &cfg)
	Constructor with.
	~PropagatorStepWriter ()
bool	WriteSteps (framework::Event &event, const std::vector< PropagationSteps > &stepCollection, const std::vector< ldmx::Measurement > &measurements, const Acts::Vector3 &start_pos, const Acts::Vector3 &start_mom)

Protected Attributes
Config	m_cfg
	the configuration object
std::mutex	m_writeMutex
	protect multi-threaded writes
TFile *	m_outputFile
	the output file name
TTree *	m_outputTree
	the output tree
int	m_eventNr
	the event number of
std::vector< int >	m_boundaryID
	boundary identifier
std::vector< int >	m_layerID
	layer identifier if
std::vector< int >	m_approachID
	surface identifier
std::vector< int >	m_sensitiveID
	surface identifier
std::vector< float >	m_x
	global x
std::vector< float >	m_y
	global y
std::vector< float >	m_z
	global z
std::vector< float >	m_dx
	global direction x
std::vector< float >	m_dy
	global direction y
std::vector< float >	m_dz
	global direction z
std::vector< int >	m_step_type
	step type
std::vector< float >	m_step_acc
	accuracy
std::vector< float >	m_step_act
	actor check
std::vector< float >	m_step_abt
	aborter
std::vector< float >	m_step_usr
	user
std::vector< float >	m_hit_x
	hit location X
std::vector< float >	m_hit_y
	hit location Y
std::vector< float >	m_hit_z
	hit location Z
std::vector< float >	m_start_pos
	start position of the particle propagated
std::vector< float >	m_start_mom
	start momentum of the particle propagated

Detailed Description

Definition at line 29 of file PropagatorStepWriter.h.

Constructor & Destructor Documentation

PropagatorStepWriter()

tracking::sim::PropagatorStepWriter::PropagatorStepWriter

(

const Config &

cfg

)

Constructor with.

Parameters

cfg	configuration struct
output	logging level

Definition at line 17 of file PropagatorStepWriter.cxx.

    : m_cfg(cfg), m_outputFile(cfg.rootFile) {
  if (m_cfg.treeName.empty()) {
    throw std::invalid_argument("Missing tree name");
  }
 
  // Setup ROOT I/O
  if (m_outputFile == nullptr) {
    m_outputFile = TFile::Open(m_cfg.filePath.c_str(), m_cfg.fileMode.c_str());
    if (m_outputFile == nullptr) {
      throw std::ios_base::failure("Could not open '" + m_cfg.filePath);
    }
  }
  m_outputFile->cd();
 
  m_outputTree = new TTree(m_cfg.treeName.c_str(),
                           "TTree from RootPropagationStepsWriter");
  if (m_outputTree == nullptr) throw std::bad_alloc();
 
  // Set the branches
  m_outputTree->Branch("event_nr", &m_eventNr);
  //  m_outputTree->Branch("volume_id", &m_volumeID);
  m_outputTree->Branch("boundary_id", &m_boundaryID);
  m_outputTree->Branch("layer_id", &m_layerID);
  m_outputTree->Branch("approach_id", &m_approachID);
  m_outputTree->Branch("sensitive_id", &m_sensitiveID);
  m_outputTree->Branch("g_x", &m_x);
  m_outputTree->Branch("g_y", &m_y);
  m_outputTree->Branch("g_z", &m_z);
  m_outputTree->Branch("d_x", &m_dx);
  m_outputTree->Branch("d_y", &m_dy);
  m_outputTree->Branch("d_z", &m_dz);
  m_outputTree->Branch("type", &m_step_type);
  m_outputTree->Branch("step_acc", &m_step_acc);
  m_outputTree->Branch("step_act", &m_step_act);
  m_outputTree->Branch("step_abt", &m_step_abt);
  m_outputTree->Branch("step_usr", &m_step_usr);
  m_outputTree->Branch("hit_x", &m_hit_x);
  m_outputTree->Branch("hit_y", &m_hit_y);
  m_outputTree->Branch("hit_z", &m_hit_z);
  m_outputTree->Branch("start_pos", &m_start_pos);
  m_outputTree->Branch("start_mom", &m_start_mom);
 
}  // constructor

References tracking::sim::PropagatorStepWriter::Config::fileMode, tracking::sim::PropagatorStepWriter::Config::filePath, m_approachID, m_boundaryID, m_cfg, m_dx, m_dy, m_dz, m_eventNr, m_hit_x, m_hit_y, m_hit_z, m_layerID, m_outputFile, m_outputTree, m_sensitiveID, m_start_mom, m_start_pos, m_step_abt, m_step_acc, m_step_act, m_step_type, m_step_usr, m_x, m_y, m_z, and tracking::sim::PropagatorStepWriter::Config::treeName.

~PropagatorStepWriter()

tracking::sim::PropagatorStepWriter::~PropagatorStepWriter

(

)

Close the file if it's yours

Definition at line 63 of file PropagatorStepWriter.cxx.

                                            {
  if (m_cfg.rootFile == nullptr) {
    m_outputFile->cd();
    m_outputTree->Write();
    m_outputFile->Close();
  }
}  // destructor

References m_cfg, m_outputFile, m_outputTree, and tracking::sim::PropagatorStepWriter::Config::rootFile.

Member Function Documentation

WriteSteps()

bool tracking::sim::PropagatorStepWriter::WriteSteps	(	framework::Event &	event,
		const std::vector< PropagationSteps > &	stepCollection,
		const std::vector< ldmx::Measurement > &	measurements,
		const Acts::Vector3 &	start_pos,
		const Acts::Vector3 &	start_mom
	)

Definition at line 72 of file PropagatorStepWriter.cxx.

                                                                {
  // Exclusive access to the tree while writing
  std::lock_guard<std::mutex> lock(m_writeMutex);
 
  m_outputFile->cd();
 
  // we get the event number
  m_eventNr = event.getEventNumber();
 
  // fill the hits
  m_hit_x.clear();
  m_hit_y.clear();
  m_hit_z.clear();
  // m_hit_erru.clear();
  // m_hit_errv.clear();
 
  m_start_pos.clear();
  m_start_mom.clear();
 
  for (auto& meas : measurements) {
    m_hit_x.push_back(meas.getGlobalPosition()[0]);
    m_hit_y.push_back(meas.getGlobalPosition()[1]);
    m_hit_z.push_back(meas.getGlobalPosition()[2]);
  }
 
  for (unsigned int i = 0; i < 3; i++) {
    m_start_pos.push_back(start_pos(i));
    m_start_mom.push_back(start_mom(i));
  }
 
  // loop over the step vector of each test propagation in this
  for (auto& steps : stepCollection) {
    // clear the vectors for each collection
    //    m_volumeID.clear();
    m_boundaryID.clear();
    m_layerID.clear();
    m_approachID.clear();
    m_sensitiveID.clear();
    m_x.clear();
    m_y.clear();
    m_z.clear();
    m_dx.clear();
    m_dy.clear();
    m_dz.clear();
    m_step_type.clear();
    m_step_acc.clear();
    m_step_act.clear();
    m_step_abt.clear();
    m_step_usr.clear();
 
    // loop over single steps
    for (auto& step : steps) {
      // the identification of the step
      //      Acts::GeometryIdentifier::Value volumeID = 0;
      Acts::GeometryIdentifier::Value boundaryID = 0;
      Acts::GeometryIdentifier::Value layerID = 0;
      Acts::GeometryIdentifier::Value approachID = 0;
      Acts::GeometryIdentifier::Value sensitiveID = 0;
      // get the identification from the surface first
      if (step.surface) {
        auto geoID = step.surface->geometryId();
        //        volumeID = geoID.volume();
        boundaryID = geoID.boundary();
        layerID = geoID.layer();
        approachID = geoID.approach();
        sensitiveID = geoID.sensitive();
      }
      // a current volume overwrites the surface tagged one
      // mg ... v36 Step does not include volume
      //      if (step.volume) {
      //    volumeID = step.volume->geometryId().volume();
      //   }
      // now fill
      m_sensitiveID.push_back(sensitiveID);
      m_approachID.push_back(approachID);
      m_layerID.push_back(layerID);
      m_boundaryID.push_back(boundaryID);
      // m_volumeID.push_back(volumeID);
 
      // kinematic information
      m_x.push_back(step.position.x());
      m_y.push_back(step.position.y());
      m_z.push_back(step.position.z());
      auto direction = step.momentum.normalized();
      m_dx.push_back(direction.x());
      m_dy.push_back(direction.y());
      m_dz.push_back(direction.z());
 
      //      double accuracy =
      //      step.stepSize.value(Acts::ConstrainedStep::accuracy());
      double accuracy = step.stepSize.accuracy();
      double actor = step.stepSize.value(Acts::ConstrainedStep::actor);
      double aborter = step.stepSize.value(Acts::ConstrainedStep::aborter);
      double user = step.stepSize.value(Acts::ConstrainedStep::user);
      double act2 = actor * actor;
      double acc2 = accuracy * accuracy;
      double abo2 = aborter * aborter;
      double usr2 = user * user;
 
      // todo - fold with direction
      if (act2 < acc2 && act2 < abo2 && act2 < usr2) {
        m_step_type.push_back(0);
      } else if (acc2 < abo2 && acc2 < usr2) {
        m_step_type.push_back(1);
      } else if (abo2 < usr2) {
        m_step_type.push_back(2);
      } else {
        m_step_type.push_back(3);
      }
 
      // step size information
      m_step_acc.push_back(accuracy);
      m_step_act.push_back(actor);
      m_step_abt.push_back(aborter);
      m_step_usr.push_back(user);
    }
    m_outputTree->Fill();
  }
  return true;
}

Member Data Documentation

m_approachID

std::vector<int> tracking::sim::PropagatorStepWriter::m_approachID

protected

surface identifier

Definition at line 64 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_boundaryID

std::vector<int> tracking::sim::PropagatorStepWriter::m_boundaryID

protected

boundary identifier

Definition at line 62 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_cfg

Config tracking::sim::PropagatorStepWriter::m_cfg

protected

the configuration object

Definition at line 55 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter(), and ~PropagatorStepWriter().

m_dx

std::vector<float> tracking::sim::PropagatorStepWriter::m_dx

protected

global direction x

Definition at line 69 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_dy

std::vector<float> tracking::sim::PropagatorStepWriter::m_dy

protected

global direction y

Definition at line 70 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_dz

std::vector<float> tracking::sim::PropagatorStepWriter::m_dz

protected

global direction z

Definition at line 71 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_eventNr

int tracking::sim::PropagatorStepWriter::m_eventNr

protected

the event number of

Definition at line 59 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_hit_x

std::vector<float> tracking::sim::PropagatorStepWriter::m_hit_x

protected

hit location X

Definition at line 77 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_hit_y

std::vector<float> tracking::sim::PropagatorStepWriter::m_hit_y

protected

hit location Y

Definition at line 78 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_hit_z

std::vector<float> tracking::sim::PropagatorStepWriter::m_hit_z

protected

hit location Z

Definition at line 79 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_layerID

std::vector<int> tracking::sim::PropagatorStepWriter::m_layerID

protected

layer identifier if

Definition at line 63 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_outputFile

TFile* tracking::sim::PropagatorStepWriter::m_outputFile

protected

the output file name

Definition at line 57 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter(), and ~PropagatorStepWriter().

m_outputTree

TTree* tracking::sim::PropagatorStepWriter::m_outputTree

protected

the output tree

Definition at line 58 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter(), and ~PropagatorStepWriter().

m_sensitiveID

std::vector<int> tracking::sim::PropagatorStepWriter::m_sensitiveID

protected

surface identifier

Definition at line 65 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_start_mom

std::vector<float> tracking::sim::PropagatorStepWriter::m_start_mom

protected

start momentum of the particle propagated

Definition at line 83 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_start_pos

std::vector<float> tracking::sim::PropagatorStepWriter::m_start_pos

protected

start position of the particle propagated

Definition at line 81 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_step_abt

std::vector<float> tracking::sim::PropagatorStepWriter::m_step_abt

protected

aborter

Definition at line 75 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_step_acc

std::vector<float> tracking::sim::PropagatorStepWriter::m_step_acc

protected

accuracy

Definition at line 73 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_step_act

std::vector<float> tracking::sim::PropagatorStepWriter::m_step_act

protected

actor check

Definition at line 74 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_step_type

std::vector<int> tracking::sim::PropagatorStepWriter::m_step_type

protected

step type

Definition at line 72 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_step_usr

std::vector<float> tracking::sim::PropagatorStepWriter::m_step_usr

protected

user

Definition at line 76 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_writeMutex

std::mutex tracking::sim::PropagatorStepWriter::m_writeMutex

protected

protect multi-threaded writes

Definition at line 56 of file PropagatorStepWriter.h.

m_x

std::vector<float> tracking::sim::PropagatorStepWriter::m_x

protected

global x

Definition at line 66 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_y

std::vector<float> tracking::sim::PropagatorStepWriter::m_y

protected

global y

Definition at line 67 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

m_z

std::vector<float> tracking::sim::PropagatorStepWriter::m_z

protected

global z

Definition at line 68 of file PropagatorStepWriter.h.

Referenced by PropagatorStepWriter().

---

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

• Tracking/include/Tracking/Sim/PropagatorStepWriter.h
• Tracking/src/Tracking/Sim/PropagatorStepWriter.cxx