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Merge pull request #118 from fbedesch/master
Fixed error handling with external vertex constraint and test example
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| #include "VtxPulls.h" | ||
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| // | ||
| // Final state configuration description | ||
| // | ||
| // Constructor | ||
| VtxPulls::VtxPulls() | ||
| { | ||
| // | ||
| // Pulls | ||
| // Ds vertex | ||
| h_Xv = new TH1D("h_Xv","X-vertex pull",100,-10.,10.); | ||
| h_Yv = new TH1D("h_Yv","Y-vertex pull",100,-10.,10.); | ||
| h_Zv = new TH1D("h_Zv","Z-vertex pull",100,-10.,10.); | ||
| h_Chi2 = new TH1D("h_Chi2", "Vertex #chi^{2}/N_{dof}", 100, 0., 10.); | ||
| // Updated track parameter pulls after vertex fit | ||
| h_D = new TH1D("h_D","D impact parameter pull",100,-10.,10.); | ||
| h_P0 = new TH1D("h_P0","Phi0 parameter pull",100,-10.,10.); | ||
| h_C = new TH1D("h_C","Half curvature pull",100,-10.,10.); | ||
| h_Z0 = new TH1D("h_Z0","Z0 pull",100,-10.,10.); | ||
| h_Ct = new TH1D("h_Ct","Cot theta pull",100,-10.,10.); | ||
| // track momenta at vertex | ||
| h_Px = new TH1D("h_Px","Momentum x pull",100,-10.,10.); | ||
| h_Py = new TH1D("h_Py","Momentum y pull",100,-10.,10.); | ||
| h_Pz = new TH1D("h_Pz","Momentum z pull",100,-10.,10.); | ||
| } | ||
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| // | ||
| // Destructor | ||
| VtxPulls::~VtxPulls() | ||
| { | ||
| } | ||
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| void VtxPulls::Fill(TVectorD vTrue, std::vector<TVectorD> pTrue, VertexFit *Vfit) | ||
| { | ||
| // Global variables | ||
| Double_t Bz = 2.; // Magnetic field | ||
| // | ||
| // Vertex pulls | ||
| Double_t VxPull[3]; | ||
| TVectorD XvFit = Vfit->GetVtx(); | ||
| TMatrixDSym XvCov = Vfit->GetVtxCov(); | ||
| Int_t Ntr = Vfit->GetNtrk(); | ||
| Double_t Chi2 = Vfit->GetVtxChi2(); | ||
| for(Int_t i=0; i<3; i++) VxPull[i] = (XvFit(i)-vTrue[i])/TMath::Sqrt(XvCov(i,i)); | ||
| h_Xv->Fill(VxPull[0]); | ||
| h_Yv->Fill(VxPull[1]); | ||
| h_Zv->Fill(VxPull[2]); | ||
| //std::cout<<"Pulls: Vx = "<<VxPull[0]<<", "<<VxPull[1]<<", "<<VxPull[2]<<std::endl; | ||
| // Chi/Ndof | ||
| Double_t Ndof = 2 * (Double_t)Ntr; | ||
| h_Chi2->Fill(Chi2/Ndof); | ||
| // | ||
| // Updated track parameter pulls | ||
| Int_t Ntst = (Int_t) pTrue.size(); | ||
| if(Ntr != Ntst) { | ||
| std::cout<<"VtxPulls:: mismatch on input track lists. Abort."<<std::endl; | ||
| exit(-1); | ||
| }else{ | ||
| Bool_t Mm = kTRUE; | ||
| VertexMore* Vmore = new VertexMore(Vfit, Mm); | ||
| // Track loop | ||
| for(Int_t i=0; i<Ntr; i++){ | ||
| TVector3 pTrk(pTrue[i](0),pTrue[i](1),pTrue[i](2)); | ||
| TVector3 Xvm(vTrue[0]*1.e-3,vTrue[1]*1.e-3,vTrue[2]*1.e-3); | ||
| Double_t Q = Vmore->GetCharge(i); | ||
| TVectorD gPar = TrkUtil:: XPtoPar(Xvm, pTrk, Q, Bz); | ||
| TVectorD GenPar = TrkUtil::ParToMm(gPar); // Back to mm | ||
| TVectorD NewPar = Vfit->GetNewPar(i); | ||
| TMatrixDSym ParCov = Vfit->GetNewCov(i); | ||
| // | ||
| // Track Parameter pulls | ||
| Double_t ParPull[5]; | ||
| for(Int_t k=0; k<5; k++)ParPull[k] = (NewPar(k)-GenPar(k))/TMath::Sqrt(ParCov(k,k)); | ||
| h_D ->Fill(ParPull[0]); | ||
| h_P0->Fill(ParPull[1]); | ||
| h_C ->Fill(ParPull[2]); | ||
| h_Z0->Fill(ParPull[3]); | ||
| h_Ct->Fill(ParPull[4]); | ||
| // | ||
| // Get fit momenta momenta | ||
| // | ||
| TVector3 pRec = Vmore->GetMomentum(i); | ||
| TMatrixDSym pCov = Vmore->GetMomentumC(i); | ||
| Double_t MomPull[3]; | ||
| for(Int_t k=0; k<3; k++)MomPull[k] = (pRec(k)-pTrk(k))/TMath::Sqrt(pCov(k,k)); | ||
| h_Px->Fill(MomPull[0]); | ||
| h_Py->Fill(MomPull[1]); | ||
| h_Pz->Fill(MomPull[2]); | ||
| } | ||
| delete Vmore; | ||
| } | ||
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| } | ||
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| void VtxPulls::Print() | ||
| { | ||
| // | ||
| // Vertex position pulls | ||
| TCanvas * cnv = new TCanvas("cnv","Vertex position pulls",10,10, 600,600); | ||
| cnv->Divide(2,2); | ||
| // X | ||
| cnv->cd(1); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Xv->Fit("gaus"); h_Xv->Draw(); | ||
| // Y | ||
| cnv->cd(2); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Yv->Fit("gaus"); h_Yv->Draw(); | ||
| // Z | ||
| cnv->cd(3); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Zv->Fit("gaus"); h_Zv->Draw(); | ||
| // Chi2/Ndof | ||
| cnv->cd(4); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Chi2->Draw(); | ||
| // | ||
| // Updated track parameter pulls | ||
| TCanvas * cnv1 = new TCanvas("cnv1","Updated parameter pulls",50,50, 900,600); | ||
| cnv1->Divide(3,2); | ||
| // D | ||
| cnv1->cd(1); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_D->Fit("gaus"); h_D->Draw(); | ||
| // Phi0 | ||
| cnv1->cd(2); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_P0->Fit("gaus"); h_P0->Draw(); | ||
| // C | ||
| cnv1->cd(3); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_C->Fit("gaus"); h_C->Draw(); | ||
| // Z0 | ||
| cnv1->cd(4); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Z0->Fit("gaus"); h_Z0->Draw(); | ||
| // Cotg Theta | ||
| cnv1->cd(5); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Ct->Fit("gaus"); h_Ct->Draw(); | ||
| // | ||
| // Momenta pulls | ||
| TCanvas * cnv2 = new TCanvas("cnv2","Momenta pulls",100,100, 900,600); | ||
| cnv2->Divide(3,1); | ||
| // Px | ||
| cnv2->cd(1); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Px->Fit("gaus"); h_Px->Draw(); | ||
| // Py | ||
| cnv2->cd(2); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Py->Fit("gaus"); h_Py->Draw(); | ||
| // Pz | ||
| cnv2->cd(3); gPad->SetLogy(1); | ||
| gStyle->SetOptStat(111111); gStyle->SetOptFit(1111); | ||
| h_Pz->Fit("gaus"); h_Pz->Draw(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| // | ||
| #ifndef G__VTXPULLS_H | ||
| #define G__VTXPULLS_H | ||
| // | ||
| #include <iostream> | ||
| #include <TH1.h> | ||
| #include <TCanvas.h> | ||
| #include <TStyle.h> | ||
| #include "external/TrackCovariance/VertexFit.h" | ||
| #include "external/TrackCovariance/VertexMore.h" | ||
|
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| // | ||
| // Pulls of tracks parameters and vertex after vertex fit | ||
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| class VtxPulls{ | ||
| // | ||
| // | ||
| // Author: F. Bedeschi, INFN-Pisa, Italy | ||
| // March 6, 2023 | ||
| // | ||
| private: | ||
| // x vertex | ||
| TH1D* h_Xv; | ||
| TH1D* h_Yv; | ||
| TH1D* h_Zv; | ||
| TH1D* h_Chi2; | ||
| // Track parameters after fit | ||
| TH1D* h_D; | ||
| TH1D* h_P0; | ||
| TH1D* h_C; | ||
| TH1D* h_Z0; | ||
| TH1D* h_Ct; | ||
| // Track momenta after fit | ||
| TH1D* h_Px; | ||
| TH1D* h_Py; | ||
| TH1D* h_Pz; | ||
| public: | ||
| // | ||
| // Constructors | ||
| VtxPulls(); | ||
| // Destructor | ||
| ~VtxPulls(); | ||
| // | ||
| // | ||
| // Methods | ||
| // | ||
| void Fill(TVectorD vTrue, std::vector<TVectorD> pTrue, VertexFit *Vfit); | ||
| void Print(); | ||
| }; | ||
|
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| #endif |
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