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 **************************************************************************/
17 //-------------------------------------------------------
18 // Implementation of the TPC tracker helper clasess
20 // AliTPCtrackerSector
22 // Origin: Marian Ivanov Marian.Ivanov@cern.ch
24 // AliTPCtrakerMI - parallel tracker helper clases
27 /* $Id: AliTPCtrackerSector.cxx 25837 2008-05-16 16:39:00Z marian $ */
29 #include "Riostream.h"
30 #include <TClonesArray.h>
32 #include "AliComplexCluster.h"
33 #include "AliTPCcluster.h"
34 #include "AliTPCclusterMI.h"
35 #include "AliTPCClustersRow.h"
36 #include "AliTPCParam.h"
37 #include "AliTPCReconstructor.h"
38 #include "AliTPCreco.h"
40 #include "AliTPCtrackerSector.h"
41 #include "TStopwatch.h"
42 #include "TTreeStream.h"
46 ClassImp(AliTPCtrackerRow)
47 ClassImp(AliTPCtrackerSector)
51 AliTPCtrackerRow::AliTPCtrackerRow():
64 // default constructor
68 AliTPCtrackerRow::~AliTPCtrackerRow(){
76 //_________________________________________________________________________
78 AliTPCtrackerRow::InsertCluster(const AliTPCclusterMI* c, UInt_t index) {
79 //-----------------------------------------------------------------------
80 // Insert a cluster into this pad row in accordence with its y-coordinate
81 //-----------------------------------------------------------------------
82 if (fN==kMaxClusterPerRow) {
83 //AliInfo("AliTPCtrackerRow::InsertCluster(): Too many clusters");
87 //AliInfo("AliTPCtrackerRow::InsertCluster(): Too many clusters !");
90 if (fN==0) {fIndex[0]=index; fClusters[fN++]=c; return;}
91 Int_t i=Find(c->GetZ());
92 if (i>=0 && i<=kMaxClusterPerRow-2) {
93 memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTPCclusterMI*));
94 memmove(fIndex +i+1 ,fIndex +i,(fN-i)*sizeof(UInt_t));
96 fIndex[i]=index; fClusters[i]=c; fN++;
99 void AliTPCtrackerRow::ResetClusters() {
102 // MvL: Need to call destructors for AliTPCclusterMI, to delete fInfo
103 if (fClusters1) fClusters1->Clear("C");
104 if (fClusters2) fClusters2->Clear("C");
109 //delete[] fClusterArray;
115 //___________________________________________________________________
116 Int_t AliTPCtrackerRow::Find(Double_t z) const {
117 //-----------------------------------------------------------------------
118 // Return the index of the nearest cluster
119 //-----------------------------------------------------------------------
121 if (z <= fClusters[0]->GetZ()) return 0;
122 if (z > fClusters[fN-1]->GetZ()) return fN;
123 Int_t b=0, e=fN-1, m=(b+e)/2;
124 for (; b<e; m=(b+e)/2) {
125 if (z > fClusters[m]->GetZ()) b=m+1;
133 //___________________________________________________________________
134 AliTPCclusterMI * AliTPCtrackerRow::FindNearest(Double_t y, Double_t z, Double_t roady, Double_t roadz) const {
135 //-----------------------------------------------------------------------
136 // Return the index of the nearest cluster in z y
137 //-----------------------------------------------------------------------
138 Float_t maxdistance = roady*roady + roadz*roadz;
140 AliTPCclusterMI *cl =0;
141 for (Int_t i=Find(z-roadz); i<fN; i++) {
142 AliTPCclusterMI *c=(AliTPCclusterMI*)(fClusters[i]);
143 if (c->GetZ() > z+roadz) break;
144 if ( (c->GetY()-y) > roady ) continue;
145 Float_t distance = (c->GetZ()-z)*(c->GetZ()-z)+(c->GetY()-y)*(c->GetY()-y);
146 if (maxdistance>distance) {
147 maxdistance = distance;
154 AliTPCclusterMI * AliTPCtrackerRow::FindNearest2(Double_t y, Double_t z, Double_t roady, Double_t roadz,UInt_t & index) const
156 //-----------------------------------------------------------------------
157 // Return the index of the nearest cluster in z y
158 //-----------------------------------------------------------------------
159 Float_t maxdistance = roady*roady + roadz*roadz;
160 AliTPCclusterMI *cl =0;
162 //PH Check boundaries. 510 is the size of fFastCluster
163 Int_t iz1 = Int_t(z-roadz+254.5);
164 if (iz1<0 || iz1>=510) return cl;
165 iz1 = TMath::Max(GetFastCluster(iz1)-1,0);
166 Int_t iz2 = Int_t(z+roadz+255.5);
167 if (iz2<0 || iz2>=510) return cl;
168 iz2 = TMath::Min(GetFastCluster(iz2)+1,fN);
169 Bool_t skipUsed = !(AliTPCReconstructor::GetRecoParam()->GetClusterSharing());
170 //FindNearest3(y,z,roady,roadz,index);
171 // for (Int_t i=Find(z-roadz); i<fN; i++) {
172 for (Int_t i=iz1; i<iz2; i++) {
173 AliTPCclusterMI *c=(AliTPCclusterMI*)(fClusters[i]);
174 if (c->GetZ() > z+roadz) break;
175 if ( c->GetY()-y > roady ) continue;
176 if ( y-c->GetY() > roady ) continue;
177 if (skipUsed && c->IsUsed(11)) continue;
178 Float_t distance = (c->GetZ()-z)*(c->GetZ()-z)+(c->GetY()-y)*(c->GetY()-y);
179 if (maxdistance>distance) {
180 maxdistance = distance;
183 //roady = TMath::Sqrt(maxdistance);
190 void AliTPCtrackerRow::SetFastCluster(Int_t i, Short_t cl){
192 // Set cluster info for fast navigation
201 Int_t AliTPCtrackerSector::GetRowNumber(Double_t x) const
203 //return pad row number for this x
207 if (x > r) return fN;
209 if (x < r) return -1;
210 return Int_t((x-r)/fPadPitchLength + 0.5);}
213 if (x > r) return fN;
215 if (x < r) return -1;
216 Double_t r1=fRow[64].GetX();
218 return Int_t((x-r)/f1PadPitchLength + 0.5);}
220 return (Int_t((x-r1)/f2PadPitchLength + 0.5)+64);}
225 void AliTPCtrackerRow::SetCluster1(Int_t i, const AliTPCclusterMI &cl)
228 if (!fClusters1) fClusters1 = new TClonesArray("AliTPCclusterMI",1000);
229 if (i<=fClusters1->GetLast() && fClusters1->UncheckedAt(i)) fClusters1->RemoveAt(i);
230 new( (*fClusters1)[fClusters1->GetEntriesFast()] ) AliTPCclusterMI(cl);
234 void AliTPCtrackerRow::SetCluster2(Int_t i, const AliTPCclusterMI &cl)
237 if (!fClusters2) fClusters2 = new TClonesArray("AliTPCclusterMI",1000);
238 if (i<=fClusters2->GetLast() && fClusters2->UncheckedAt(i)) fClusters2->RemoveAt(i);
239 new( (*fClusters2)[fClusters2->GetEntriesFast()] ) AliTPCclusterMI(cl);
244 //_________________________________________________________________________
245 void AliTPCtrackerSector::Setup(const AliTPCParam *par, Int_t f) {
246 //-----------------------------------------------------------------------
247 // Setup inner sector
248 //-----------------------------------------------------------------------
250 fAlpha=par->GetInnerAngle();
251 fAlphaShift=par->GetInnerAngleShift();
252 fPadPitchWidth=par->GetInnerPadPitchWidth();
253 fPadPitchLength=par->GetInnerPadPitchLength();
254 fN=par->GetNRowLow();
255 if(fRow)delete [] fRow;fRow = 0;
256 fRow=new AliTPCtrackerRow[fN];
257 for (Int_t i=0; i<fN; i++) {
258 fRow[i].SetX(par->GetPadRowRadiiLow(i));
259 fRow[i].SetDeadZone(1.5); //1.5 cm of dead zone
262 fAlpha=par->GetOuterAngle();
263 fAlphaShift=par->GetOuterAngleShift();
264 fPadPitchWidth = par->GetOuterPadPitchWidth();
265 fPadPitchLength = par->GetOuter1PadPitchLength();
266 f1PadPitchLength = par->GetOuter1PadPitchLength();
267 f2PadPitchLength = par->GetOuter2PadPitchLength();
269 if(fRow)delete [] fRow;fRow = 0;
270 fRow=new AliTPCtrackerRow[fN];
271 for (Int_t i=0; i<fN; i++) {
272 fRow[i].SetX(par->GetPadRowRadiiUp(i));
273 fRow[i].SetDeadZone(1.5); // 1.5 cm of dead zone
278 //_________________________________________________________________________
279 void AliTPCtrackerSector::InsertCluster(AliTPCclusterMI *cl, Int_t size, const AliTPCParam *par) {
280 //-----------------------------------------------------------------------
281 // Insert cluster to the sector
282 //-----------------------------------------------------------------------
286 const Int_t fkNIS = par->GetNInnerSector()/2;
287 const Int_t fkNOS = par->GetNOuterSector()/2;
288 Int_t row = cl->GetRow();
289 Int_t sec = cl->GetDetector();
291 // add cluster to the corresponding pad row
292 AliTPCtrackerRow *tpcrow = 0x0;
299 left = (sec-fkNIS*2)/fkNOS;
304 if(!tpcrow->GetClusters1()) {
307 if(size < kMaxClusterPerRow) {
308 tpcrow->SetCluster1(tpcrow->GetN1(), *cl);
309 //printf("inner: size %d, tpcrow->GetN1() %d sec %d row %d tpcrow %p cl %p\n", size, tpcrow->GetN1(), sec, row, tpcrow, cl);
311 tpcrow->IncrementN1();
316 if(!tpcrow->GetClusters2()) {
319 if(size < kMaxClusterPerRow) {
320 tpcrow->SetCluster2(tpcrow->GetN2(), *cl);
321 //printf("outer: size %d, tpcrow->GetN2() %d sec %d row %d tpcrow %p cl %p\n", size, tpcrow->GetN2(), sec, row, tpcrow, cl);
323 tpcrow->IncrementN2();