SimpleVertexTree Class Reference

#include <SimpleVertexTree.h>

Public Member Functions
void	fill (const TransientVertex &recv, const TrackingVertex *simv=0, reco::RecoToSimCollection *recSimColl=0, const float &time=0.)
void	fill (const TransientVertex &recv, const TrackingVertex *simv=0, const float &time=0.)
void	fill (const TransientVertex &recv, const float &time=0.)
void	fill (const TrackingVertex *simv)
void	fill ()
	SimpleVertexTree (const char *fitterName="VertexFitter", const MagneticField *magField=0)
virtual	~SimpleVertexTree ()

Private Member Functions
void	defineTrackBranch (const TString &prefix, const TString &type, const float *(VertexFitterResult::*pfunc)(const int) const, const TString &index)

Private Attributes
float	chiProb
float	chiTot
int	maxTrack
float	ndf
int	numberOfVertices
TString *	parameterNames [5]
float	recErr [3]
float	recPos [3]
VertexFitterResult *	result
float	simPos [3]
TString	theFitterName
bool	trackTest
TTree *	vertexTree

Detailed Description

Definition at line 41 of file SimpleVertexTree.h.

Constructor & Destructor Documentation

SimpleVertexTree::SimpleVertexTree	(	const char *	fitterName = "VertexFitter",
		const MagneticField *	magField = 0
	)

The constructor

Parameters

fitterName

The name of the TTree, and of the associated histograms.

Definition at line 10 of file SimpleVertexTree.cc.

References VertexFitterResult::chi2Information(), defineTrackBranch(), maxTrack, numberOfVertices, VertexFitterResult::numberRecTracks(), VertexFitterResult::numberSimTracks(), parameterNames, VertexFitterResult::recErrors(), VertexFitterResult::recParameters(), VertexFitterResult::recTrack_simIndex(), VertexFitterResult::recTrackWeight(), VertexFitterResult::recVertexErr(), VertexFitterResult::recVertexPos(), VertexFitterResult::refErrors(), VertexFitterResult::refParameters(), result, VertexFitterResult::simParameters(), VertexFitterResult::simTrack_recIndex(), VertexFitterResult::simVertexPos(), VertexFitterResult::time(), VertexFitterResult::trackInformation(), VertexFitterResult::vertexPresent(), and vertexTree.

                                    :
     theFitterName(filterName)
{

  vertexTree = new TTree(filterName, "Vertex fit results");
//   trackTest 
//     = SimpleConfigurable<bool> (false, "SimpleVertexTree:trackTest").value();
//   if (trackTest) {
//     maxTrack = SimpleConfigurable<int> (100, "SimpleVertexTree:maximumTracksToStore").value();
//   } else 
  maxTrack = 0;
  result = new VertexFitterResult(maxTrack, magField);

  vertexTree->Branch("vertex",(void *)result->vertexPresent(),"vertex/I");
  vertexTree->Branch("simPos",(void *)result->simVertexPos(),"X/F:Y/F:Z/F");
  vertexTree->Branch("recPos",(void *)result->recVertexPos(),"X/F:Y/F:Z/F");
  vertexTree->Branch("recErr",(void *)result->recVertexErr(),"X/F:Y/F:Z/F");
  vertexTree->Branch("nbrTrk",(void *)result->trackInformation(),"Sim/I:Rec/I:Shared/I");
  vertexTree->Branch("chiTot",(void *)result->chi2Information (),"chiTot/F");
  vertexTree->Branch("ndf",(void *)(result->chi2Information ()+1),"ndf/F");
  vertexTree->Branch("chiProb",(void *)(result->chi2Information ()+2),"chiProb/F");
  vertexTree->Branch("time",(void *)result->time(),"time/F");


  parameterNames[0] = new TString("ptinv");
  parameterNames[1] = new TString("theta");
  parameterNames[2] = new TString("phi");
  parameterNames[3] = new TString("timp");
  parameterNames[4] = new TString("limp");

  vertexTree->Branch("simTracks",(void *)result->numberSimTracks(),"simTracks/I");
  vertexTree->Branch("simTrack_recIndex",(void *)result->simTrack_recIndex(),"simTrack_recIndex[simTracks]/I");
  defineTrackBranch("sim", "Par", &VertexFitterResult::simParameters, "simTracks");

  vertexTree->Branch("recTracks",(void *)result->numberRecTracks(),"recTracks/I");
  vertexTree->Branch("recTrack_simIndex",(void *)result->recTrack_simIndex(),"recTrack_simIndex[recTracks]/I");
  vertexTree->Branch("recTrack_weight",(void *)result->recTrackWeight(),"recTrack_weight[recTracks]/F");
  defineTrackBranch("rec", "Par", &VertexFitterResult::recParameters, "recTracks");
  defineTrackBranch("ref", "Par", &VertexFitterResult::refParameters, "recTracks");
  defineTrackBranch("rec", "Err", &VertexFitterResult::recErrors, "recTracks");
  defineTrackBranch("ref", "Err", &VertexFitterResult::refErrors, "recTracks");

  numberOfVertices = 0;
}

SimpleVertexTree::~SimpleVertexTree ( )

virtual

Definition at line 70 of file SimpleVertexTree.cc.

References chiProb, gather_cfg::cout, numberOfVertices, theFitterName, and vertexTree.

{
  std::cout << std::endl<< "End of SimpleVertexTree for "<< theFitterName << std::endl;
  std::cout << std::endl<< "Number of vertices fit: "<< numberOfVertices<<std::endl;

  //
  // save current root directory
  //
  TDirectory* rootDir = gDirectory;
  //
  // close files
  //
  vertexTree->GetDirectory()->cd();
  vertexTree->Write();
  if (numberOfVertices>0) {
    TH1F *resX = new TH1F(theFitterName + "_ResX","Residual x coordinate: "+theFitterName, 100, -0.03, 0.03);
    TH1F *resY = new TH1F(theFitterName + "_ResY","Residual y coordinate: "+theFitterName, 100, -0.03, 0.03);
    TH1F *resZ = new TH1F(theFitterName + "_ResZ","Residual z coordinate: "+theFitterName, 100, -0.03, 0.03);
    TH1F *pullX = new TH1F(theFitterName + "_PullX","Pull x coordinate: "+theFitterName, 100, -10., 10.);
    TH1F *pullY = new TH1F(theFitterName + "_PullY","Pull y coordinate: "+theFitterName, 100, -10., 10.);
    TH1F *pullZ = new TH1F(theFitterName + "_PullZ","Pull z coordinate: "+theFitterName, 100, -10., 10.);
    TH1F *chiNorm = new TH1F(theFitterName + "_ChiNorm","Normalized chi-square: " +theFitterName, 100, 0., 10.);
    TH1F *chiProb = new TH1F(theFitterName + "_ChiProb","Chi-square probability: "+theFitterName, 100, 0., 1.);
    vertexTree->Project(theFitterName + "_ResX", "(simPos.X-recPos.X)");
    vertexTree->Project(theFitterName + "_ResY", "(simPos.Y-recPos.Y)");
    vertexTree->Project(theFitterName + "_ResZ", "(simPos.Z-recPos.Z)");
    vertexTree->Project(theFitterName + "_PullX", "(simPos.X-recPos.X)/recErr.X");
    vertexTree->Project(theFitterName + "_PullY", "(simPos.Y-recPos.Y)/recErr.Y");
    vertexTree->Project(theFitterName + "_PullZ", "(simPos.Z-recPos.Z)/recErr.Z");
    vertexTree->Project(theFitterName + "_ChiNorm", "chiTot/ndf");
    vertexTree->Project(theFitterName + "_ChiProb", "chiProb");
    std::cout << "Mean of Residual distribution X: "<< resX->GetMean()<<std::endl;
    std::cout << "Mean of Residual distribution Y: "<< resY->GetMean()<<std::endl;
    std::cout << "Mean of Residual distribution Z: "<< resZ->GetMean()<<std::endl;
    std::cout << "RMS of Residual distribution X:  "<< resX->GetRMS()<<std::endl;
    std::cout << "RMS of Residual distribution Y:  "<< resY->GetRMS()<<std::endl;
    std::cout << "RMS of Residual distribution Z:  "<< resZ->GetRMS()<<std::endl;
    std::cout << "Mean of Pull distribution X: "<< pullX->GetMean()<<std::endl;
    std::cout << "Mean of Pull distribution Y: "<< pullY->GetMean()<<std::endl;
    std::cout << "Mean of Pull distribution Z: "<< pullZ->GetMean()<<std::endl;
    std::cout << "RMS of Pull distribution X:  "<< pullX->GetRMS()<<std::endl;
    std::cout << "RMS of Pull distribution Y:  "<< pullY->GetRMS()<<std::endl;
    std::cout << "RMS of Pull distribution Z:  "<< pullZ->GetRMS()<<std::endl;
    std::cout << "Average chi-square probability: "<< chiProb->GetMean()<<std::endl;
    std::cout << "Average normalized chi-square : "<< chiNorm->GetMean()<<std::endl;
    resX->Write();
    resY->Write();
    resZ->Write();
    pullX->Write();
    pullY->Write();
    pullZ->Write();
    chiNorm->Write();
    chiProb->Write();
  }
  delete vertexTree;
  //
  // restore directory
  //
  rootDir->cd();
  std::cout << std::endl;

}

Member Function Documentation

void SimpleVertexTree::defineTrackBranch ( const TString &  prefix, const TString &  type, const float *(VertexFitterResult::*)(const int) const  pfunc, const TString &  index  )

private

Definition at line 57 of file SimpleVertexTree.cc.

References i, parameterNames, result, and vertexTree.

Referenced by SimpleVertexTree().

{
    TString branchName, branchVariables;
    for ( int i=0; i<5; i++ ) {
      branchName = prefix + type + '_' + *parameterNames[i];
      branchVariables = branchName + '[' + index + "]/F";
      vertexTree->Branch(branchName,(void *)(result->*pfunc)(i),branchVariables);
    }
}

void SimpleVertexTree::fill	(	const TransientVertex &	recv,
		const TrackingVertex *	simv = 0,
		reco::RecoToSimCollection *	recSimColl = 0,
		const float &	time = 0.
	)

Entry for a RecVertex. If the vertex was not associated to a TkSimVertex, an empty pointer can be given (would be identical to the next method). Timing information for the fit can also be provided.

Definition at line 133 of file SimpleVertexTree.cc.

References VertexFitterResult::fill(), fill(), and result.

{
  result->fill(recv, simv, recSimColl, time);
  fill();
}

void SimpleVertexTree::fill	(	const TransientVertex &	recv,
		const TrackingVertex *	simv = 0,
		const float &	time = 0.
	)

void SimpleVertexTree::fill	(	const TransientVertex &	recv,
		const float &	time = 0.
	)

Entry for a RecVertex, without associated vertex. Timing information for the fit can also be provided.

Definition at line 140 of file SimpleVertexTree.cc.

References VertexFitterResult::fill(), fill(), and result.

{
  result->fill(recv, 0, 0, time);
  fill();
}

void SimpleVertexTree::fill

(

const TrackingVertex *

simv

)

Entry for a TkSimVertex, without RecVertex.

Definition at line 146 of file SimpleVertexTree.cc.

References VertexFitterResult::fill(), fill(), and result.

{
  result->fill(TransientVertex(), simv, 0);
  fill();
}

void SimpleVertexTree::fill

(

void

)

To be used if one wants to record "Failed Fits", e.g. to synchronise two Trees

Definition at line 167 of file SimpleVertexTree.cc.

References numberOfVertices, VertexFitterResult::reset(), result, and vertexTree.

Referenced by fill().

{
  ++numberOfVertices;
  static std::atomic<int> nFill{0};
  TDirectory* rootDir = gDirectory;
  //
  // fill entry
  //
  vertexTree->GetDirectory()->cd();
  vertexTree->Fill();
  if ( (++nFill)%1000==0 )  vertexTree->AutoSave();
  //
  // restore directory
  //
  rootDir->cd();
  result->reset();


}

Member Data Documentation

float SimpleVertexTree::chiProb

private

Definition at line 99 of file SimpleVertexTree.h.

Referenced by ~SimpleVertexTree().

float SimpleVertexTree::chiTot

private

Definition at line 99 of file SimpleVertexTree.h.

int SimpleVertexTree::maxTrack

private

Definition at line 106 of file SimpleVertexTree.h.

Referenced by SimpleVertexTree().

float SimpleVertexTree::ndf

private

Definition at line 99 of file SimpleVertexTree.h.

int SimpleVertexTree::numberOfVertices

private

Definition at line 100 of file SimpleVertexTree.h.

Referenced by fill(), SimpleVertexTree(), and ~SimpleVertexTree().

TString* SimpleVertexTree::parameterNames[5]

private

Definition at line 107 of file SimpleVertexTree.h.

Referenced by defineTrackBranch(), and SimpleVertexTree().

float SimpleVertexTree::recErr[3]

private

Definition at line 98 of file SimpleVertexTree.h.

float SimpleVertexTree::recPos[3]

private

Definition at line 97 of file SimpleVertexTree.h.

VertexFitterResult* SimpleVertexTree::result

private

Definition at line 102 of file SimpleVertexTree.h.

Referenced by defineTrackBranch(), fill(), and SimpleVertexTree().

float SimpleVertexTree::simPos[3]

private

Definition at line 96 of file SimpleVertexTree.h.

TString SimpleVertexTree::theFitterName

private

Definition at line 103 of file SimpleVertexTree.h.

Referenced by ~SimpleVertexTree().

bool SimpleVertexTree::trackTest

private

Definition at line 105 of file SimpleVertexTree.h.

TTree* SimpleVertexTree::vertexTree

private

Definition at line 101 of file SimpleVertexTree.h.

Referenced by defineTrackBranch(), fill(), SimpleVertexTree(), and ~SimpleVertexTree().