1 #include "AliITSUTrackCond.h"
2 #include "AliITSUAux.h"
6 using namespace AliITSUAux;
9 Char_t AliITSUTrackCond::fgkClSharing = 0;
10 Int_t AliITSUTrackCond::fgkMaxBranches = 50;
11 Int_t AliITSUTrackCond::fgkMaxCandidates = 500;
12 Float_t AliITSUTrackCond::fgkMaxTr2ClChi2 = 50.;
13 Float_t AliITSUTrackCond::fgkMaxChi2GloNrm = 50.;
14 Float_t AliITSUTrackCond::fgkMissPenalty = 2.;
15 Float_t AliITSUTrackCond::fgkMaxMatchChi2 = 15.;
16 Float_t AliITSUTrackCond::fgkMaxITSSAChi2 = 15;
17 //______________________________________________________________
18 AliITSUTrackCond::AliITSUTrackCond(int nLayers)
24 ,fMaxITSTPCMatchChi2(fgkMaxMatchChi2)
25 ,fMaxITSSAChi2(fgkMaxITSSAChi2)
39 if (nLayers) SetNLayers(nLayers);
42 //______________________________________________________________
43 AliITSUTrackCond::AliITSUTrackCond(const AliITSUTrackCond& src)
45 ,fInitDone(src.fInitDone)
46 ,fActiveLrInner(src.fActiveLrInner)
47 ,fActiveLrOuter(src.fActiveLrOuter)
48 ,fExlLayers(src.fExlLayers)
50 ,fMaxITSTPCMatchChi2(src.fMaxITSTPCMatchChi2)
51 ,fMaxITSSAChi2(src.fMaxITSSAChi2)
60 ,fNConditions(src.fNConditions)
61 ,fConditions(src.fConditions)
62 ,fAuxData(src.fAuxData)
65 SetNLayers(src.fNLayers);
66 for (int i=fNLayers;i--;) {
67 SetMaxBranches(i,src.GetMaxBranches(i));
68 SetMaxCandidates(i,src.GetMaxCandidates(i));
69 SetMaxTr2ClChi2(i,src.GetMaxTr2ClChi2(i));
70 SetMaxChi2GloNrm(i,src.GetMaxChi2GloNrm(i));
71 SetMissPenalty(i,src.GetMissPenalty(i));
72 SetNSigmaRoadY(i,src.GetNSigmaRoadY(i));
73 SetNSigmaRoadZ(i,src.GetNSigmaRoadZ(i));
74 SetClSharing(i,src.GetClSharing(i));
78 //______________________________________________________________
79 AliITSUTrackCond& AliITSUTrackCond::operator=(const AliITSUTrackCond& src)
83 fInitDone = src.fInitDone;
84 fActiveLrInner = src.fActiveLrInner;
85 fActiveLrOuter = src.fActiveLrOuter;
87 fExlLayers = src.fExlLayers;
88 fNConditions = src.fNConditions;
89 fConditions = src.fConditions;
90 fMaxITSTPCMatchChi2 = src.fMaxITSTPCMatchChi2;
91 fMaxITSSAChi2 = src.fMaxITSSAChi2;
93 SetNLayers(src.fNLayers);
95 for (int i=fNLayers;i--;) {
96 SetMaxBranches(i,src.GetMaxBranches(i));
97 SetMaxCandidates(i,src.GetMaxCandidates(i));
98 SetMaxTr2ClChi2(i,src.GetMaxTr2ClChi2(i));
99 SetMaxChi2GloNrm(i,src.GetMaxChi2GloNrm(i));
100 SetMissPenalty(i,src.GetMissPenalty(i));
101 SetNSigmaRoadY(i,src.GetNSigmaRoadY(i));
102 SetNSigmaRoadZ(i,src.GetNSigmaRoadZ(i));
103 SetClSharing(i,src.GetClSharing(i));
105 fAuxData = src.fAuxData;
110 //______________________________________________________________
111 void AliITSUTrackCond::SetNLayers(int nLayers)
113 // set number of layers
117 delete[] fMaxBranches;
118 delete[] fMaxCandidates;
119 delete[] fMaxTr2ClChi2;
120 delete[] fMaxChi2GloNrm;
121 delete[] fMissPenalty;
122 delete[] fNSigmaRoadY;
123 delete[] fNSigmaRoadZ;
129 fActiveLrOuter = fNLayers-1;
130 fClSharing = new Char_t[fNLayers];
131 fMaxBranches = new Short_t[fNLayers];
132 fMaxCandidates = new Short_t[fNLayers];
133 fMaxTr2ClChi2 = new Float_t[fNLayers];
134 fMaxChi2GloNrm = new Float_t[fNLayers];
135 fMissPenalty = new Float_t[fNLayers];
136 fNSigmaRoadY = new Float_t[fNLayers];
137 fNSigmaRoadZ = new Float_t[fNLayers];
138 for (int i=fNLayers;i--;) {
139 SetClSharing(i,fgkClSharing);
140 SetMaxBranches(i,fgkMaxBranches);
141 SetMaxCandidates(i,fgkMaxCandidates);
142 SetMaxTr2ClChi2(i,fgkMaxTr2ClChi2);
143 SetMaxChi2GloNrm(i,fgkMaxChi2GloNrm);
144 SetMissPenalty(i,fgkMissPenalty);
145 SetNSigmaRoadY(i,-1); // force recalculation
146 SetNSigmaRoadZ(i,-1); // force recalculation
162 //______________________________________________________________
163 void AliITSUTrackCond::AddGroupPattern(UShort_t patt,Int_t minCl)
165 // add new group pattern to last condition: the track should have at least minCl clusters at layers given by patt
166 if (fNConditions<1) AliFatal("Can be called only after AddCondition");
167 if (minCl>int(AliITSUAux::kMaxLayers)) AliFatal(Form("Requested Nlayers=%d exceeds max alowed %d",minCl,AliITSUAux::kMaxLayers));
168 if (minCl<1) AliFatal(Form("Requested Nlayers=%d for pattern %x",minCl,patt));
169 int ind = fConditions.GetSize();
170 fConditions.Set(ind+1);
171 fConditions[ind] = (patt&AliITSUAux::kMaxLrMask) | (minCl<<kShiftNcl);
172 fAuxData[(fNConditions-1)*kNAuxSz + kNGroups]++;
175 //______________________________________________________________
176 void AliITSUTrackCond::AddNewCondition(Int_t minClusters)
178 // add new track condition
179 fAuxData.Set( (1+fNConditions)*kNAuxSz );
180 fAuxData[fNConditions*kNAuxSz+kCondStart] = fConditions.GetSize();
181 fAuxData[fNConditions*kNAuxSz+kNGroups] = 0;
182 fAuxData[fNConditions*kNAuxSz+kMinClus] = minClusters;
187 //______________________________________________________________
188 Bool_t AliITSUTrackCond::CheckPattern(UShort_t patt) const
190 // check if the pattern matches to some condition
191 Short_t *arrAux = (Short_t*)fAuxData.GetArray();
192 UInt_t *arrGrp = (UInt_t*)fConditions.GetArray();
193 int ncl = NumberOfBitsSet(patt);
195 for (int ic=0;ic<fNConditions;ic++) {
196 if (arrAux[cntCond+kMinClus]>ncl) {cntCond+=kNAuxSz; continue;} // check number of clusters
197 int grAddr = arrAux[cntCond+kCondStart]; // 1st group pattern address in the condition
199 // if every group of the condition does not match, check next contition
200 for (int ig=arrAux[cntCond+kNGroups];ig--;) {
201 UInt_t pattReq = arrGrp[grAddr++];
202 UShort_t actLr = (pattReq&AliITSUAux::kMaxLrMask)&patt; // patter of active layers satisfying to mask
203 if (!actLr || NumberOfBitsSet(actLr)<int(pattReq>>kShiftNcl)) {ok = kFALSE; break;}
205 if (ok) return kTRUE;
211 //______________________________________________________________
212 void AliITSUTrackCond::Print(Option_t*) const
215 int nc = GetNConditions();
216 Short_t *arrAux = (Short_t*)fAuxData.GetArray();
217 UInt_t *arrGrp = (UInt_t*)fConditions.GetArray();
219 printf("Conditions set ID=%d : %d entries\n",GetID(),nc);
220 for (int i=0;i<nc;i++) {
221 printf("#%2d: MinCl:%2d | %d groups :",i,arrAux[cntCond+kMinClus],arrAux[cntCond+kNGroups]);
222 int grAddr = arrAux[cntCond+kCondStart];
223 for (int ig=arrAux[cntCond+kNGroups];ig--;) {
224 UInt_t patt = arrGrp[grAddr];
226 PrintBits(patt, fNLayers);
227 printf("|%d}",patt>>kShiftNcl);
234 printf("Exluded Layers: ");
235 for (int i=0;i<fNLayers;i++) if (IsLayerExcluded(i)) printf(" %d",i); printf("\n");
237 printf("Cuts:\t%6s\t%6s\t%4s\t%8s\t%8s\t%8s\t%8s\t%8s\n", "MaxBrn","MaxCnd","ClSh","Chi2Cl","Chi2Glo","Mis.Pen.","NSig.Y","NSig.Z");
238 for (int i=0;i<fNLayers;i++) {
239 printf("Lr%2d:\t%6d\t%6d\t%4d\t%8.1f\t%8.2f\t%8.2f\t%8.2f\t%8.2f\n",i,
240 fMaxBranches[i],fMaxCandidates[i],fClSharing[i],fMaxTr2ClChi2[i],fMaxChi2GloNrm[i],fMissPenalty[i],fNSigmaRoadY[i],fNSigmaRoadZ[i]);
243 printf("ITS/TPC matching MaxChi2: %.3f\n",fMaxITSTPCMatchChi2);
244 printf("ITS_SA BWD fit MaxChi2: %.3f\n",fMaxITSSAChi2);
248 //______________________________________________________________
249 void AliITSUTrackCond::Init()
251 // finalize and check consistency
252 if (fInitDone) return;
255 for (int ilr=0;ilr<fNLayers;ilr++) {
256 if (IsLayerExcluded(ilr)) continue;
257 if (fActiveLrInner<0) fActiveLrInner = ilr;
258 fActiveLrOuter = ilr;
259 float nsig = Sqrt(2*GetMaxTr2ClChi2(ilr));
260 if (GetNSigmaRoadY(ilr)<0) SetNSigmaRoadY(ilr,nsig);
261 if (GetNSigmaRoadZ(ilr)<0) SetNSigmaRoadZ(ilr,nsig);
264 if (fMaxITSTPCMatchChi2<1e-6) SetMaxITSTPCMatchChi2(fgkMaxMatchChi2);
265 if (fMaxITSSAChi2<1e-6) SetMaxITSSAChi2(fgkMaxITSSAChi2);