1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
25 #include "AliExternalComparison.h"
26 #include "AliExternalTrackParam.h"
27 #include "AliTrackReference.h"
28 #include "THnSparse.h"
29 #include "TParticle.h"
31 #include "TParticlePDG.h"
32 #include "TParticle.h"
33 #include "TTreeStream.h"
36 ClassImp(AliExternalComparison)
39 AliExternalComparison::AliExternalComparison()
47 // Default constructor
52 AliExternalComparison::AliExternalComparison(const Text_t *name, const Text_t *title)
60 // Non default cosntructor
66 AliExternalComparison::~AliExternalComparison(){
70 if (fResolHistos) fResolHistos->Delete();
71 if (fPullHistos) fPullHistos->Delete();
72 delete fResolHistos; // resolution histogram
73 delete fPullHistos; // pull histogram
74 delete fRangeMatrix; // range matrix
78 void AliExternalComparison::Analyze() {
85 Long64_t AliExternalComparison::Merge(TCollection *li) {
89 TIterator* iter = li->MakeIterator();
90 AliExternalComparison* comp = 0;
91 TString strName(GetName());
92 while ((comp = (AliExternalComparison*)iter->Next())) {
93 if (!comp->InheritsFrom(AliExternalComparison::Class())) {
96 if (strName.CompareTo(comp->GetName())!=0) return -1;
97 // add histograms here...
103 void AliExternalComparison:: Add(AliExternalComparison*comp){
105 // Add comparison object
107 if (!fResolHistos) return;
108 for (Int_t i=0;i<5;i++){
109 THnSparse * h0 = (THnSparse*)fResolHistos->At(i);
110 THnSparse * h1 = (THnSparse*)comp->fResolHistos->At(i);
111 if (h0&&h1) h0->Add(h1);
112 h0 = (THnSparse*)fPullHistos->At(i);
113 h1 = (THnSparse*)comp->fPullHistos->At(i);
114 if (h0&&h1) h0->Add(h1);
120 void AliExternalComparison::Process(const AliExternalTrackParam *param0, const AliExternalTrackParam *param1){
122 // Process- fill histogram with residuals
123 // Tracks has to be in the same local X
125 const Double_t kDeltaX=0.2;
126 const Double_t kDeltaA=0.01;
127 if (!AcceptPair(param0,param1)) return;
129 if (!fResolHistos) MakeHistos();
131 //if (TMath::Abs(param0->GetX()-param1->GetX())>kDeltaX) return;
132 //if (TMath::Abs(param0->GetAlpha()-param1->GetAlpha())>kDeltaA) return;
134 const Double_t *p0 = param0->GetParameter();
135 const Double_t *p1 = param1->GetParameter();
136 const Double_t *c0 = param0->GetCovariance();
137 const Double_t *c1 = param1->GetCovariance();
146 vec[4] = TMath::Sqrt(TMath::Abs(p1[4]))* ((p1[4]>0)? 1:-1);
147 vec[5] = TMath::Sqrt(xyz[0]*xyz[0]+xyz[1]*xyz[1]);
148 vec[6] = TMath::ATan2(xyz[1],xyz[0]);
153 vec[7] = p0[0]-p1[0];
154 his = (THnSparse*)fResolHistos->At(0);
156 vec[7]=(p0[0]-p1[0])/TMath::Sqrt(c0[0]+c1[0]);
157 his = (THnSparse*)fPullHistos->At(0);
161 vec[7] = p0[1]-p1[1];
162 his = (THnSparse*)fResolHistos->At(1);
164 vec[7]=(p0[1]-p1[1])/TMath::Sqrt(c0[2]+c1[2]);
165 his = (THnSparse*)fPullHistos->At(1);
168 vec[7] = p0[2]-p1[2];
169 his = (THnSparse*)fResolHistos->At(2);
171 vec[7]=(p0[2]-p1[2])/TMath::Sqrt(c0[5]+c1[5]);
172 his = (THnSparse*)fPullHistos->At(2);
175 vec[7] = p0[3]-p1[3];
176 his = (THnSparse*)fResolHistos->At(3);
178 vec[7]=(p0[3]-p1[3])/TMath::Sqrt(c0[9]+c1[9]);
179 his = (THnSparse*)fPullHistos->At(3);
182 vec[7] = p0[4]-p1[4];
183 his = (THnSparse*)fResolHistos->At(4);
185 vec[7]=(p0[4]-p1[4])/TMath::Sqrt(c0[14]+c1[14]);
186 his = (THnSparse*)fPullHistos->At(4);
190 void AliExternalComparison::Process(const AliExternalTrackParam *param0, TParticle *part){
194 AliExternalTrackParam *param1 = MakeExternalParam(part);
195 param1->Rotate(param0->GetAlpha());
196 if (param0&¶m1) Process(param0, param1);
198 void AliExternalComparison::Process(const AliExternalTrackParam *param0, TParticle *part, const AliTrackReference *ref){
202 AliExternalTrackParam *param1 = MakeExternalParam(part,ref);
203 param1->Rotate(param0->GetAlpha());
204 if (param0&¶m1) Process(param0, param1);
207 THnSparse * AliExternalComparison::GetHisto(Int_t ivar, Int_t type) {
211 if (!fResolHistos) return 0;
212 if (ivar<0 || ivar>4) return 0;
213 if (type==0) return (THnSparse*)fResolHistos->At(ivar);
214 if (type==1) return (THnSparse*)fPullHistos->At(ivar);
218 void AliExternalComparison::MakeHistos(){
222 if (!fRangeMatrix) SetDefaultRange();
223 TMatrixD & mat = *fRangeMatrix;
225 Double_t xmin[8], xmax[8];
226 Double_t xpmin[8], xpmax[8];
228 for (Int_t i=0;i<7;i++){
233 nbins[i]=TMath::Nint(mat(i,2));
236 fResolHistos = new TObjArray(5);
237 fPullHistos = new TObjArray(5);
239 for (Int_t idelta=0;idelta<5;idelta++){
240 xmin[7]=mat(idelta+7,0);
241 xmax[7]=mat(idelta+7,1);
242 nbins[7]=TMath::Nint(mat(idelta+7,2));
243 fResolHistos->AddAt(new THnSparseF(Form("Resol%s",GetName()),Form("Resol%s",GetTitle()),
244 8,nbins,xmin,xmax),idelta);
247 fPullHistos->AddAt(new THnSparseF(Form("Pull%s",GetName()),Form("Pull%s",GetTitle()),
248 8,nbins,xmin,xmax),idelta);
254 void AliExternalComparison::SetDefaultRange(Float_t scale,Float_t arm, Int_t nbins){
256 // set default binning
257 // scale - define position range
263 if (!fRangeMatrix) fRangeMatrix = new TMatrixD(12,3);
264 TMatrixD & mat = *fRangeMatrix;
268 mat(0,0)=-50; mat(0,1)=50; mat(0,2)=50; // P0 -y range
269 mat(1,0)=-250; mat(1,1)=250; mat(1,2)=50; // P1 -Z range
270 mat(2,0)=-0.99; mat(2,1)=0.99; mat(2,2)=20; // P2 -snp range
271 mat(3,0)=-1.5; mat(3,1)=1.5; mat(3,2)=20; // P3 -tantheta range
272 mat(4,0)=-3; mat(4,1)=3; mat(4,2)=50; // sqrt(P4) -sqrt(1/pt) range
274 mat(5,0)= 0; mat(5,1)=250; mat(5,2)=50; // R range
275 mat(6,0)= TMath::Pi(); mat(6,1)=TMath::Pi(); mat(6,2)=18*4; // fi range
279 mat(7,0)=-scale; mat(7,1)=scale; mat(7,2)=nbins; // P0 -y range
280 mat(8,0)=-scale; mat(8,1)=scale; mat(8,2)=nbins; // P1 -Z range
281 mat(9,0)=-scale/arm; mat(9,1)=scale/arm; mat(9,2)=nbins; // P2 -snp range
282 mat(10,0)=-scale/arm; mat(10,1)=scale/arm; mat(10,2)=nbins; // P3 -tantheta range
283 mat(11,0)=-1; mat(11,1)=1; mat(11,2)=nbins; // sqrt(P4) -sqrt(1/pt) range
287 void AliExternalComparison::SetDefaultCuts(){
290 if (!fCutMatrix) fCutMatrix = new TMatrixD(10,1);
291 TMatrixD & mat = *fCutMatrix;
307 void AliExternalComparison::SetResolRange(Int_t param, Float_t min, Float_t max, Int_t nbins){
311 if (!fRangeMatrix) SetDefaultRange();
312 TMatrixD & mat = *fRangeMatrix;
315 mat(7+param,0)=min; mat(7+param,1)=max; mat(7+param,2)=nbins;
318 void AliExternalComparison::SetDistCut(Float_t dP0, Float_t dP1,Float_t dP2,Float_t dP3, Float_t dP4){
322 if (!fCutMatrix) SetDefaultCuts();
323 TMatrixD & mat = *fCutMatrix;
332 void AliExternalComparison::SetPullDistCut(Float_t dnP0, Float_t dnP1,Float_t dnP2,Float_t dnP3, Float_t dnP4){
336 if (!fCutMatrix) SetDefaultCuts();
337 TMatrixD & mat = *fCutMatrix;
338 mat(5,0)=dnP0; //dnP0
339 mat(6,0)=dnP1; //dnP1
340 mat(7,0)=dnP2; //dnP2
341 mat(8,0)=dnP3; //dnP3
342 mat(9,0)=dnP4; //dnP4
345 Bool_t AliExternalComparison::AcceptPair(const AliExternalTrackParam *param0, const AliExternalTrackParam *param1){
350 if (!fCutMatrix) SetDefaultCuts();
351 TMatrixD & mat = *fCutMatrix;
353 const Double_t *p0 = param0->GetParameter();
354 const Double_t *p1 = param1->GetParameter();
355 const Double_t *c0 = param0->GetCovariance();
356 const Double_t *c1 = param1->GetCovariance();
358 if (TMath::Abs(p0[0]-p1[0])>mat(0,0)) return kFALSE;
359 if (TMath::Abs(p0[1]-p1[1])>mat(1,0)) return kFALSE;
360 if (TMath::Abs(p0[2]-p1[2])>mat(2,0)) return kFALSE;
361 if (TMath::Abs(p0[3]-p1[3])>mat(3,0)) return kFALSE;
362 if (TMath::Abs(p0[4]-p1[4])>mat(4,0)) return kFALSE;
363 if ((c0[0]+c1[0])<0) return kFALSE;
364 if ((c0[2]+c1[2])<0) return kFALSE;
365 if ((c0[5]+c1[5])<0) return kFALSE;
366 if ((c0[9]+c1[9])<0) return kFALSE;
367 if ((c0[14]+c1[14])<0) return kFALSE;
369 if (TMath::Abs((p0[0]-p1[0])/TMath::Sqrt(c0[0]+c1[0]))>mat(5,0)) return kFALSE;
370 if (TMath::Abs((p0[1]-p1[1])/TMath::Sqrt(c0[2]+c1[2]))>mat(6,0)) return kFALSE;
371 if (TMath::Abs((p0[2]-p1[2])/TMath::Sqrt(c0[5]+c1[5]))>mat(7,0)) return kFALSE;
372 if (TMath::Abs((p0[3]-p1[3])/TMath::Sqrt(c0[9]+c1[9]))>mat(8,0)) return kFALSE;
373 if (TMath::Abs((p0[4]-p1[4])/TMath::Sqrt(c0[14]+c1[14]))>mat(9,0)) return kFALSE;
378 AliExternalTrackParam *AliExternalComparison::MakeExternalParam(TParticle *part, const AliTrackReference *ref){
380 // make a Kalman track from track reference
382 Double_t xyz[3]={ref->X(),ref->Y(),ref->Z()};
383 Double_t pxyz[3]={ref->Px(),ref->Py(),ref->Pz()};
385 for (Int_t i=0; i<21;i++) cv[i]=0;
386 if (!part->GetPDG()) return 0;
387 AliExternalTrackParam * param = new AliExternalTrackParam(xyz,pxyz,cv,TMath::Nint(part->GetPDG()->Charge()/3.));
392 AliExternalTrackParam * AliExternalComparison::MakeExternalParam(TParticle *part){
396 Double_t xyz[3]={part->Vx(),part->Vy(),part->Vz()};
397 Double_t pxyz[3]={part->Px(),part->Py(),part->Pz()};
399 for (Int_t i=0; i<21;i++) cv[i]=0;
400 if (!part->GetPDG()) return 0;
401 AliExternalTrackParam * param = new AliExternalTrackParam(xyz,pxyz,cv,TMath::Nint(part->GetPDG()->Charge()/3.));
408 void AliExternalComparison::MakeComparisonTree(const char * outname){
410 // make a comparison tree
411 // the tree will be written to the file - outname
414 TFile f("comp.root");
415 AliExternalComparison *comp = (AliExternalComparison*)f.Get("compAlign");
416 outname="compTree.root";
418 AliExternalComparison *comp = this;
419 TTreeSRedirector *pcstream = new TTreeSRedirector(outname);
422 Double_t position[10];
424 Int_t *bins = new Int_t[10];
427 for (Int_t isPull=0; isPull<2; isPull++){
428 for (Int_t ires=0;ires<5; ires++){
429 his = comp->GetHisto(ires,isPull);
432 Int_t ndim = his->GetNdimensions();
434 for (Long64_t i = 0; i < his->GetNbins(); ++i) {
435 value = his->GetBinContent(i, bins);
436 for (Int_t idim = 0; idim < ndim; idim++) {
437 position[idim] = his->GetAxis(idim)->GetBinCenter(bins[idim]);
439 (*pcstream)<<"Resol"<<
440 "isPull="<<isPull<< // normalized error indication
441 "index="<<ires<< // parameter difference index
442 "bincont="<<value<< // bin content
443 "val="<<position[7]<< // parameter difference
444 "p0="<<position[0]<< //P0
445 "p1="<<position[1]<< //P1
446 "p2="<<position[2]<< //P2
447 "p3="<<position[3]<< //P3
448 "p4="<<position[4]<< //P4
449 "R="<<position[5]<< //Radius
450 "phi="<<position[6]<< //Radius