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d73981ad 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/*
17
18
19
20
21*/
22
23
24
25#include "AliExternalComparison.h"
26#include "AliExternalTrackParam.h"
27#include "AliTrackReference.h"
28#include "THnSparse.h"
29#include "TParticle.h"
30#include "TMatrix.h"
31#include "TParticlePDG.h"
32#include "TParticle.h"
33#include "TTreeStream.h"
34#include "TAxis.h"
35
36ClassImp(AliExternalComparison)
37
38
39AliExternalComparison::AliExternalComparison()
40 :TNamed(),
41 fResolHistos(0),
42 fPullHistos(0),
43 fRangeMatrix(0),
44 fCutMatrix(0)
45{
46 //
47 // Default constructor
48 //
49}
50
51
52AliExternalComparison::AliExternalComparison(const Text_t *name, const Text_t *title)
53 :TNamed(name,title),
54 fResolHistos(0),
55 fPullHistos(0),
56 fRangeMatrix(0),
57 fCutMatrix(0)
58{
59 //
60 // Non default cosntructor
61 //
62}
63
16afe866 64AliExternalComparison::AliExternalComparison(const AliExternalComparison& comp)
65 :TNamed(comp.fName,comp.fTitle),
66 fResolHistos(new TObjArray(*(comp.fResolHistos))),
67 fPullHistos(new TObjArray(*(comp.fPullHistos))),
68 fRangeMatrix(new TMatrixD(*(comp.fRangeMatrix))),
69 fCutMatrix(new TMatrixD(*(comp.fCutMatrix)))
70{
71 //
72 // copy constructor
73 //
74}
75
76AliExternalComparison& AliExternalComparison::operator=(const AliExternalComparison&comp)
77{
78 //
79 //
80 //
81 SetName(comp.GetName());
82 SetTitle(comp.GetTitle());
83 fResolHistos=new TObjArray(*(comp.fResolHistos));
84 fPullHistos=new TObjArray(*(comp.fPullHistos));
85 fRangeMatrix=new TMatrixD(*(comp.fRangeMatrix));
86 fCutMatrix=new TMatrixD(*(comp.fCutMatrix));
87 return *this;
88}
d73981ad 89
90
91AliExternalComparison::~AliExternalComparison(){
92 //
93 //
94 //
95 if (fResolHistos) fResolHistos->Delete();
96 if (fPullHistos) fPullHistos->Delete();
97 delete fResolHistos; // resolution histogram
98 delete fPullHistos; // pull histogram
99 delete fRangeMatrix; // range matrix
16afe866 100 delete fCutMatrix; // range matrix
d73981ad 101}
102
103
104void AliExternalComparison::Analyze() {
105 //
106 //
107 //
108}
109
110
111Long64_t AliExternalComparison::Merge(TCollection *li) {
112 //
113 //
114 //
115 TIterator* iter = li->MakeIterator();
116 AliExternalComparison* comp = 0;
117 TString strName(GetName());
118 while ((comp = (AliExternalComparison*)iter->Next())) {
119 if (!comp->InheritsFrom(AliExternalComparison::Class())) {
120 return -1;
121 }
122 if (strName.CompareTo(comp->GetName())!=0) return -1;
123 // add histograms here...
124 Add(comp);
125 }
126 return 0;
127}
128
129void AliExternalComparison:: Add(AliExternalComparison*comp){
130 //
131 // Add comparison object
132 //
133 if (!fResolHistos) return;
134 for (Int_t i=0;i<5;i++){
135 THnSparse * h0 = (THnSparse*)fResolHistos->At(i);
136 THnSparse * h1 = (THnSparse*)comp->fResolHistos->At(i);
137 if (h0&&h1) h0->Add(h1);
138 h0 = (THnSparse*)fPullHistos->At(i);
139 h1 = (THnSparse*)comp->fPullHistos->At(i);
140 if (h0&&h1) h0->Add(h1);
141 }
142}
143
144
145
146void AliExternalComparison::Process(const AliExternalTrackParam *param0, const AliExternalTrackParam *param1){
147 //
148 // Process- fill histogram with residuals
149 // Tracks has to be in the same local X
150 //
d73981ad 151 if (!AcceptPair(param0,param1)) return;
152 //
153 if (!fResolHistos) MakeHistos();
154 //
d73981ad 155 //
156 const Double_t *p0 = param0->GetParameter();
157 const Double_t *p1 = param1->GetParameter();
158 const Double_t *c0 = param0->GetCovariance();
159 const Double_t *c1 = param1->GetCovariance();
160 Double_t xyz[3];
161 param1->GetXYZ(xyz);
162 //
163 Double_t vec[10];
164 vec[0] = p1[0];
165 vec[1] = p1[1];
166 vec[2] = p1[2];
167 vec[3] = p1[3];
168 vec[4] = TMath::Sqrt(TMath::Abs(p1[4]))* ((p1[4]>0)? 1:-1);
169 vec[5] = TMath::Sqrt(xyz[0]*xyz[0]+xyz[1]*xyz[1]);
170 vec[6] = TMath::ATan2(xyz[1],xyz[0]);
171 //
172 //
173 THnSparse * his = 0;
174 //
175 vec[7] = p0[0]-p1[0];
176 his = (THnSparse*)fResolHistos->At(0);
177 his->Fill(vec);
178 vec[7]=(p0[0]-p1[0])/TMath::Sqrt(c0[0]+c1[0]);
179 his = (THnSparse*)fPullHistos->At(0);
180 his->Fill(vec);
181 //
182 //
183 vec[7] = p0[1]-p1[1];
184 his = (THnSparse*)fResolHistos->At(1);
185 his->Fill(vec);
186 vec[7]=(p0[1]-p1[1])/TMath::Sqrt(c0[2]+c1[2]);
187 his = (THnSparse*)fPullHistos->At(1);
188 his->Fill(vec);
189 //
190 vec[7] = p0[2]-p1[2];
191 his = (THnSparse*)fResolHistos->At(2);
192 his->Fill(vec);
193 vec[7]=(p0[2]-p1[2])/TMath::Sqrt(c0[5]+c1[5]);
194 his = (THnSparse*)fPullHistos->At(2);
195 his->Fill(vec);
196 //
197 vec[7] = p0[3]-p1[3];
198 his = (THnSparse*)fResolHistos->At(3);
199 his->Fill(vec);
200 vec[7]=(p0[3]-p1[3])/TMath::Sqrt(c0[9]+c1[9]);
201 his = (THnSparse*)fPullHistos->At(3);
202 his->Fill(vec);
203 //
204 vec[7] = p0[4]-p1[4];
205 his = (THnSparse*)fResolHistos->At(4);
206 his->Fill(vec);
207 vec[7]=(p0[4]-p1[4])/TMath::Sqrt(c0[14]+c1[14]);
208 his = (THnSparse*)fPullHistos->At(4);
209 his->Fill(vec);
210}
211
212void AliExternalComparison::Process(const AliExternalTrackParam *param0, TParticle *part){
213 //
214 //
215 //
216 AliExternalTrackParam *param1 = MakeExternalParam(part);
217 param1->Rotate(param0->GetAlpha());
218 if (param0&&param1) Process(param0, param1);
219}
220void AliExternalComparison::Process(const AliExternalTrackParam *param0, TParticle *part, const AliTrackReference *ref){
221 //
222 //
223 //
224 AliExternalTrackParam *param1 = MakeExternalParam(part,ref);
225 param1->Rotate(param0->GetAlpha());
226 if (param0&&param1) Process(param0, param1);
227}
228
229THnSparse * AliExternalComparison::GetHisto(Int_t ivar, Int_t type) {
230 //
231 //
232 //
233 if (!fResolHistos) return 0;
234 if (ivar<0 || ivar>4) return 0;
235 if (type==0) return (THnSparse*)fResolHistos->At(ivar);
236 if (type==1) return (THnSparse*)fPullHistos->At(ivar);
237 return 0;
238}
239
240void AliExternalComparison::MakeHistos(){
241 //
242 //
243 //
244 if (!fRangeMatrix) SetDefaultRange();
245 TMatrixD & mat = *fRangeMatrix;
246 //
247 Double_t xmin[8], xmax[8];
248 Double_t xpmin[8], xpmax[8];
249 Int_t nbins[10];
250 for (Int_t i=0;i<7;i++){
251 xmin[i]=mat(i,0);
252 xmax[i]=mat(i,1);
253 xpmin[i]=mat(i,0);
254 xpmax[i]=mat(i,1);
255 nbins[i]=TMath::Nint(mat(i,2));
256 }
257 //
258 fResolHistos = new TObjArray(5);
259 fPullHistos = new TObjArray(5);
260 //
261 for (Int_t idelta=0;idelta<5;idelta++){
262 xmin[7]=mat(idelta+7,0);
263 xmax[7]=mat(idelta+7,1);
264 nbins[7]=TMath::Nint(mat(idelta+7,2));
265 fResolHistos->AddAt(new THnSparseF(Form("Resol%s",GetName()),Form("Resol%s",GetTitle()),
266 8,nbins,xmin,xmax),idelta);
267 xmin[7]=-10;
268 xmax[7]=10;
269 fPullHistos->AddAt(new THnSparseF(Form("Pull%s",GetName()),Form("Pull%s",GetTitle()),
270 8,nbins,xmin,xmax),idelta);
271 }
272 //
273}
274
275
276void AliExternalComparison::SetDefaultRange(Float_t scale,Float_t arm, Int_t nbins){
277 //
278 // set default binning
279 // scale - define position range
280 // arm - Level arm
281 // Binning:
282 // 7 variables
283 // 5 deltas
284
285 if (!fRangeMatrix) fRangeMatrix = new TMatrixD(12,3);
286 TMatrixD & mat = *fRangeMatrix;
287 //
288 // variables
289 //
290 mat(0,0)=-50; mat(0,1)=50; mat(0,2)=50; // P0 -y range
291 mat(1,0)=-250; mat(1,1)=250; mat(1,2)=50; // P1 -Z range
292 mat(2,0)=-0.99; mat(2,1)=0.99; mat(2,2)=20; // P2 -snp range
293 mat(3,0)=-1.5; mat(3,1)=1.5; mat(3,2)=20; // P3 -tantheta range
294 mat(4,0)=-3; mat(4,1)=3; mat(4,2)=50; // sqrt(P4) -sqrt(1/pt) range
295 //
296 mat(5,0)= 0; mat(5,1)=250; mat(5,2)=50; // R range
16afe866 297 mat(6,0)= -TMath::Pi(); mat(6,1)=TMath::Pi(); mat(6,2)=18*4; // fi range
d73981ad 298 //
299 // Resolution
300 //
301 mat(7,0)=-scale; mat(7,1)=scale; mat(7,2)=nbins; // P0 -y range
302 mat(8,0)=-scale; mat(8,1)=scale; mat(8,2)=nbins; // P1 -Z range
303 mat(9,0)=-scale/arm; mat(9,1)=scale/arm; mat(9,2)=nbins; // P2 -snp range
304 mat(10,0)=-scale/arm; mat(10,1)=scale/arm; mat(10,2)=nbins; // P3 -tantheta range
305 mat(11,0)=-1; mat(11,1)=1; mat(11,2)=nbins; // sqrt(P4) -sqrt(1/pt) range
306 //
307}
308
309void AliExternalComparison::SetDefaultCuts(){
310 //
311
312 if (!fCutMatrix) fCutMatrix = new TMatrixD(10,1);
313 TMatrixD & mat = *fCutMatrix;
314 //
315 mat(0,0)=10; //dP0
316 mat(1,0)=20; //dP1
317 mat(2,0)=0.05; //dP2
318 mat(3,0)=0.05; //dP3
319 mat(4,0)=1; //dP4
320 //
321 mat(5,0)=10; //dnP0
322 mat(6,0)=50; //dnP1
323 mat(7,0)=10; //dnP2
324 mat(8,0)=10; //dnP3
325 mat(9,0)=10; //dnP4
326 //
327}
328
9b25160c 329void AliExternalComparison::SetParameterRange(Int_t param, Float_t min, Float_t max, Int_t nbins){
330 //
331 //
332 //
333 if (!fRangeMatrix) SetDefaultRange();
334 TMatrixD & mat = *fRangeMatrix;
335 if (param<0) return;
336 if (param>6) return;
337 mat(param,0)=min; mat(param,1)=max; mat(param,2)=nbins;
338}
339
8a3aca82 340void AliExternalComparison::SetResolRange(Int_t param, Float_t min, Float_t max, Int_t nbins){
341 //
342 //
343 //
344 if (!fRangeMatrix) SetDefaultRange();
345 TMatrixD & mat = *fRangeMatrix;
346 if (param<0) return;
347 if (param>4) return;
348 mat(7+param,0)=min; mat(7+param,1)=max; mat(7+param,2)=nbins;
349}
350
d73981ad 351void AliExternalComparison::SetDistCut(Float_t dP0, Float_t dP1,Float_t dP2,Float_t dP3, Float_t dP4){
352 //
353 // Set diff cuts
354 //
355 if (!fCutMatrix) SetDefaultCuts();
356 TMatrixD & mat = *fCutMatrix;
357 mat(0,0)=dP0; //dP0
358 mat(1,0)=dP1; //dP1
359 mat(2,0)=dP2; //dP2
360 mat(3,0)=dP3; //dP3
361 mat(4,0)=dP4; //dP4
362
363
364}
365void AliExternalComparison::SetPullDistCut(Float_t dnP0, Float_t dnP1,Float_t dnP2,Float_t dnP3, Float_t dnP4){
366 //
367 //
368 //
369 if (!fCutMatrix) SetDefaultCuts();
370 TMatrixD & mat = *fCutMatrix;
371 mat(5,0)=dnP0; //dnP0
372 mat(6,0)=dnP1; //dnP1
373 mat(7,0)=dnP2; //dnP2
374 mat(8,0)=dnP3; //dnP3
375 mat(9,0)=dnP4; //dnP4
376}
377
378Bool_t AliExternalComparison::AcceptPair(const AliExternalTrackParam *param0, const AliExternalTrackParam *param1){
379 //
380 //
381 //
382 Bool_t isOK =kTRUE;
383 if (!fCutMatrix) SetDefaultCuts();
384 TMatrixD & mat = *fCutMatrix;
385 //
386 const Double_t *p0 = param0->GetParameter();
387 const Double_t *p1 = param1->GetParameter();
388 const Double_t *c0 = param0->GetCovariance();
389 const Double_t *c1 = param1->GetCovariance();
390 //
391 if (TMath::Abs(p0[0]-p1[0])>mat(0,0)) return kFALSE;
392 if (TMath::Abs(p0[1]-p1[1])>mat(1,0)) return kFALSE;
393 if (TMath::Abs(p0[2]-p1[2])>mat(2,0)) return kFALSE;
394 if (TMath::Abs(p0[3]-p1[3])>mat(3,0)) return kFALSE;
395 if (TMath::Abs(p0[4]-p1[4])>mat(4,0)) return kFALSE;
8a3aca82 396 if ((c0[0]+c1[0])<0) return kFALSE;
397 if ((c0[2]+c1[2])<0) return kFALSE;
398 if ((c0[5]+c1[5])<0) return kFALSE;
399 if ((c0[9]+c1[9])<0) return kFALSE;
400 if ((c0[14]+c1[14])<0) return kFALSE;
401
d73981ad 402 if (TMath::Abs((p0[0]-p1[0])/TMath::Sqrt(c0[0]+c1[0]))>mat(5,0)) return kFALSE;
403 if (TMath::Abs((p0[1]-p1[1])/TMath::Sqrt(c0[2]+c1[2]))>mat(6,0)) return kFALSE;
404 if (TMath::Abs((p0[2]-p1[2])/TMath::Sqrt(c0[5]+c1[5]))>mat(7,0)) return kFALSE;
405 if (TMath::Abs((p0[3]-p1[3])/TMath::Sqrt(c0[9]+c1[9]))>mat(8,0)) return kFALSE;
406 if (TMath::Abs((p0[4]-p1[4])/TMath::Sqrt(c0[14]+c1[14]))>mat(9,0)) return kFALSE;
407 return isOK;
408}
409
410
411AliExternalTrackParam *AliExternalComparison::MakeExternalParam(TParticle *part, const AliTrackReference *ref){
412 //
413 // make a Kalman track from track reference
414 //
415 Double_t xyz[3]={ref->X(),ref->Y(),ref->Z()};
416 Double_t pxyz[3]={ref->Px(),ref->Py(),ref->Pz()};
417 Double_t cv[21];
418 for (Int_t i=0; i<21;i++) cv[i]=0;
419 if (!part->GetPDG()) return 0;
420 AliExternalTrackParam * param = new AliExternalTrackParam(xyz,pxyz,cv,TMath::Nint(part->GetPDG()->Charge()/3.));
421 return param;
422}
423
424
425AliExternalTrackParam * AliExternalComparison::MakeExternalParam(TParticle *part){
426 //
427 //
428 //
429 Double_t xyz[3]={part->Vx(),part->Vy(),part->Vz()};
430 Double_t pxyz[3]={part->Px(),part->Py(),part->Pz()};
431 Double_t cv[21];
432 for (Int_t i=0; i<21;i++) cv[i]=0;
433 if (!part->GetPDG()) return 0;
434 AliExternalTrackParam * param = new AliExternalTrackParam(xyz,pxyz,cv,TMath::Nint(part->GetPDG()->Charge()/3.));
435 return param;
436}
437
438
439
440
441void AliExternalComparison::MakeComparisonTree(const char * outname){
442 //
443 // make a comparison tree
444 // the tree will be written to the file - outname
445 //
446 /*
447 TFile f("comp.root");
448 AliExternalComparison *comp = (AliExternalComparison*)f.Get("compAlign");
449 outname="compTree.root";
450 */
451 AliExternalComparison *comp = this;
452 TTreeSRedirector *pcstream = new TTreeSRedirector(outname);
453 //
454 THnSparse *his=0;
455 Double_t position[10];
456 Double_t value;
457 Int_t *bins = new Int_t[10];
458 //
459 //
460 for (Int_t isPull=0; isPull<2; isPull++){
461 for (Int_t ires=0;ires<5; ires++){
462 his = comp->GetHisto(ires,isPull);
463 if (!his) continue;
464 //
465 Int_t ndim = his->GetNdimensions();
466 //
467 for (Long64_t i = 0; i < his->GetNbins(); ++i) {
468 value = his->GetBinContent(i, bins);
469 for (Int_t idim = 0; idim < ndim; idim++) {
470 position[idim] = his->GetAxis(idim)->GetBinCenter(bins[idim]);
471 }
472 (*pcstream)<<"Resol"<<
473 "isPull="<<isPull<< // normalized error indication
474 "index="<<ires<< // parameter difference index
475 "bincont="<<value<< // bin content
476 "val="<<position[7]<< // parameter difference
477 "p0="<<position[0]<< //P0
478 "p1="<<position[1]<< //P1
479 "p2="<<position[2]<< //P2
480 "p3="<<position[3]<< //P3
481 "p4="<<position[4]<< //P4
482 "R="<<position[5]<< //Radius
483 "phi="<<position[6]<< //Radius
484 "\n";
485 }
486 }
487 }
488 delete pcstream;
489}