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e4f2f73d | 1 | #ifndef ALITRDSEEDV1_H |
2 | #define ALITRDSEEDV1_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
e44586fb | 4 | * See cxx source for full Copyright notice */ |
e4f2f73d | 5 | |
6 | /* $Id$ */ | |
7 | ||
8 | //////////////////////////////////////////////////////////////////////////// | |
9 | // // | |
ee8fb199 | 10 | // \class AliTRDseedV1 |
11 | // \brief The TRD offline tracklet | |
12 | // \author Alexandru Bercuci | |
e4f2f73d | 13 | // // |
14 | //////////////////////////////////////////////////////////////////////////// | |
15 | ||
3e778975 | 16 | #ifndef ALITRDTRACKLETBASE_H |
17 | #include "AliTRDtrackletBase.h" | |
e3cf3d02 | 18 | #endif |
19 | ||
20 | #ifndef ROOT_TMath | |
21 | #include "TMath.h" | |
e4f2f73d | 22 | #endif |
23 | ||
ae4e8b84 | 24 | #ifndef ALITRDGEOMETRY_H |
25 | #include "AliTRDgeometry.h" | |
26 | #endif | |
27 | ||
0906e73e | 28 | #ifndef ALIPID_H |
29 | #include "AliPID.h" | |
30 | #endif | |
31 | ||
e4f2f73d | 32 | #ifndef ALIRIEMAN_H |
33 | #include "AliRieman.h" | |
34 | #endif | |
35 | ||
f29f13a6 | 36 | #ifndef ALITRDCLUSTER_H |
37 | #include "AliTRDcluster.h" | |
38 | #endif | |
39 | ||
d07eec70 | 40 | #include "AliTRDReconstructor.h" |
41 | ||
e4f2f73d | 42 | class TTreeSRedirector; |
f301a656 | 43 | class TLinearFitter; |
e4f2f73d | 44 | |
45 | class AliRieman; | |
46 | ||
eb38ed55 | 47 | class AliTRDtrackingChamber; |
f3d3af1b | 48 | class AliTRDtrackV1; |
eb2b4f91 | 49 | class AliTRDpadPlane; |
3e778975 | 50 | class AliTRDseedV1 : public AliTRDtrackletBase |
51 | { | |
3044dfe5 | 52 | friend class AliHLTTRDTracklet; |
53 | ||
e3cf3d02 | 54 | public: |
55 | enum ETRDtrackletBuffers { | |
980d5a2a | 56 | kNbits = 6 // bits to store number of clusters |
57 | ,kMask = 0x3f // bit mask | |
58 | ,kNtb = 31 // max clusters/pad row | |
8d2bec9e | 59 | ,kNclusters = 2*kNtb // max number of clusters/tracklet |
60 | ,kNslices = 10 // max dEdx slices | |
e44586fb | 61 | }; |
e3cf3d02 | 62 | |
2e2915e7 | 63 | // bits from 0-13 are reserved by ROOT (see TObject.h) |
e3cf3d02 | 64 | enum ETRDtrackletStatus { |
f29f13a6 | 65 | kOwner = BIT(14) // owner of its clusters |
66 | ,kRowCross = BIT(15) // pad row cross tracklet | |
e20bef2b | 67 | ,kPID = BIT(16) // PID contributor |
68 | ,kCalib = BIT(17) // calibrated tracklet | |
69 | ,kKink = BIT(18) // kink prolongation tracklet | |
1fd9389f | 70 | ,kStandAlone = BIT(19) // tracklet build during stand alone track finding |
2eb10c34 | 71 | ,kPrimary = BIT(20) // tracklet from a primary track candidate |
e44586fb | 72 | }; |
2eb10c34 | 73 | |
74 | enum ETRDtrackletError { // up to 8 bits | |
75 | kAttachClFound = 0 // not enough clusters found | |
76 | ,kAttachRowGap = 1 // found gap attached rows | |
77 | ,kAttachRow = 2 // found 3 rows | |
78 | ,kAttachMultipleCl= 3// multiple clusters attached to time bin | |
79 | ,kAttachClAttach= 4 // not enough clusters attached | |
80 | ,kFitCl = 5 // not enough clusters for fit | |
81 | ,kFitFailedY = 6 // fit failed in XY plane failed | |
82 | ,kFitFailedZ = 7 // fit in the QZ plane failed | |
7c3eecb8 | 83 | }; |
e44586fb | 84 | |
ae4e8b84 | 85 | AliTRDseedV1(Int_t det = -1); |
e44586fb | 86 | ~AliTRDseedV1(); |
87 | AliTRDseedV1(const AliTRDseedV1 &ref); | |
88 | AliTRDseedV1& operator=(const AliTRDseedV1 &ref); | |
89 | ||
4d6aee34 | 90 | Bool_t AttachClusters(AliTRDtrackingChamber *const chamber, Bool_t tilt = kFALSE); |
203967fc | 91 | void Bootstrap(const AliTRDReconstructor *rec); |
e3cf3d02 | 92 | void Calibrate(); |
203967fc | 93 | void CookdEdx(Int_t nslices); |
e3cf3d02 | 94 | void CookLabels(); |
3e778975 | 95 | Bool_t CookPID(); |
2eb10c34 | 96 | Bool_t Fit(UChar_t opt=0); |
203967fc | 97 | Bool_t Init(AliTRDtrackV1 *track); |
e44586fb | 98 | inline void Init(const AliRieman *fit); |
203967fc | 99 | Bool_t IsEqual(const TObject *inTracklet) const; |
e3cf3d02 | 100 | Bool_t IsCalibrated() const { return TestBit(kCalib);} |
e44586fb | 101 | Bool_t IsOwner() const { return TestBit(kOwner);} |
f29f13a6 | 102 | Bool_t IsKink() const { return TestBit(kKink);} |
2eb10c34 | 103 | Bool_t IsPrimary() const { return TestBit(kPrimary);} |
e20bef2b | 104 | Bool_t HasPID() const { return TestBit(kPID);} |
2eb10c34 | 105 | Bool_t HasError(ETRDtrackletError err) const |
106 | { return TESTBIT(fErrorMsg, err);} | |
3e778975 | 107 | Bool_t IsOK() const { return GetN() > 4 && GetNUsed() < 4;} |
e44586fb | 108 | Bool_t IsRowCross() const { return TestBit(kRowCross);} |
f29f13a6 | 109 | Bool_t IsUsable(Int_t i) const { return fClusters[i] && !fClusters[i]->IsUsed();} |
110 | Bool_t IsStandAlone() const { return TestBit(kStandAlone);} | |
e44586fb | 111 | |
2eb10c34 | 112 | Float_t GetAnodeWireOffset(Float_t zt); |
68f9b6bd | 113 | Float_t GetC(Int_t typ=0) const { return fC[typ]; } |
e3cf3d02 | 114 | Float_t GetChi2() const { return fChi2; } |
115 | inline Float_t GetChi2Z() const; | |
116 | inline Float_t GetChi2Y() const; | |
f29f13a6 | 117 | inline Float_t GetChi2Phi() const; |
e44586fb | 118 | void GetCovAt(Double_t x, Double_t *cov) const; |
d937ad7a | 119 | void GetCovXY(Double_t *cov) const { memcpy(cov, &fCov[0], 3*sizeof(Double_t));} |
16cca13f | 120 | void GetCovRef(Double_t *cov) const { memcpy(cov, &fRefCov, 7*sizeof(Double_t));} |
66765e8e | 121 | static Int_t GetCovSqrt(const Double_t * const c, Double_t *d); |
4d6aee34 | 122 | static Double_t GetCovInv(const Double_t * const c, Double_t *d); |
7c3eecb8 | 123 | UChar_t GetErrorMsg() const { return fErrorMsg;} |
203967fc | 124 | Float_t GetdX() const { return fdX;} |
4d6aee34 | 125 | const Float_t* GetdEdx() const { return &fdEdx[0];} |
126 | Float_t GetdQdl(Int_t ic, Float_t *dx=NULL) const; | |
2eb10c34 | 127 | Float_t GetdYdX() const { return fYfit[1];} |
128 | Float_t GetdZdX() const { return fZfit[1];} | |
3e778975 | 129 | Int_t GetdY() const { return Int_t(GetY()/0.014);} |
203967fc | 130 | Int_t GetDetector() const { return fDet;} |
e3cf3d02 | 131 | void GetCalibParam(Float_t &exb, Float_t &vd, Float_t &t0, Float_t &s2, Float_t &dl, Float_t &dt) const { |
132 | exb = fExB; vd = fVD; t0 = fT0; s2 = fS2PRF; dl = fDiffL; dt = fDiffT;} | |
4d6aee34 | 133 | AliTRDcluster* GetClusters(Int_t i) const { return i<0 || i>=kNclusters ? NULL: fClusters[i];} |
8d2bec9e | 134 | Int_t GetIndexes(Int_t i) const{ return i<0 || i>=kNclusters ? -1 : fIndexes[i];} |
e3cf3d02 | 135 | Int_t GetLabels(Int_t i) const { return fLabels[i];} |
4d6aee34 | 136 | Float_t GetMomentum(Float_t *err = NULL) const; |
980d5a2a | 137 | Int_t GetN() const { return (Int_t)fN&kMask;} |
3e778975 | 138 | Int_t GetN2() const { return GetN();} |
980d5a2a | 139 | Int_t GetNUsed() const { return Int_t((fN>>kNbits)&kMask);} |
140 | Int_t GetNShared() const { return Int_t(((fN>>kNbits)>>kNbits)&kMask);} | |
b453ef55 | 141 | Float_t GetOccupancyTB() const; |
e44586fb | 142 | Float_t GetQuality(Bool_t kZcorr) const; |
dd8059a8 | 143 | Float_t GetPadLength() const { return fPad[0];} |
144 | Float_t GetPadWidth() const { return fPad[1];} | |
ae4e8b84 | 145 | Int_t GetPlane() const { return AliTRDgeometry::GetLayer(fDet); } |
146 | ||
3e778975 | 147 | Float_t* GetProbability(Bool_t force=kFALSE); |
b25a5e9e | 148 | Float_t GetPt() const { return fPt; } |
3e778975 | 149 | inline Double_t GetPID(Int_t is=-1) const; |
e3cf3d02 | 150 | Float_t GetS2Y() const { return fS2Y;} |
151 | Float_t GetS2Z() const { return fS2Z;} | |
152 | Float_t GetSigmaY() const { return fS2Y > 0. ? TMath::Sqrt(fS2Y) : 0.2;} | |
153 | Float_t GetSnp() const { return fYref[1]/TMath::Sqrt(1+fYref[1]*fYref[1]);} | |
1fd9389f | 154 | Float_t GetTgl() const { return fZref[1]/TMath::Sqrt(1+fYref[1]*fYref[1]);} |
dd8059a8 | 155 | Float_t GetTilt() const { return fPad[2];} |
3e778975 | 156 | UInt_t GetTrackletWord() const { return 0;} |
b72f4eaf | 157 | UShort_t GetVolumeId() const; |
e3cf3d02 | 158 | Float_t GetX0() const { return fX0;} |
159 | Float_t GetX() const { return fX0 - fX;} | |
5a7a515d | 160 | Float_t GetY() const { return fYfit[0] - fYfit[1] * fX;} |
b1957d3c | 161 | Double_t GetYat(Double_t x) const { return fYfit[0] - fYfit[1] * (fX0-x);} |
1fd9389f | 162 | Float_t GetYfit(Int_t id) const { return fYfit[id];} |
163 | Float_t GetYref(Int_t id) const { return fYref[id];} | |
164 | Float_t GetZ() const { return fZfit[0] - fZfit[1] * fX;} | |
b1957d3c | 165 | Double_t GetZat(Double_t x) const { return fZfit[0] - fZfit[1] * (fX0-x);} |
1fd9389f | 166 | Float_t GetZfit(Int_t id) const { return fZfit[id];} |
167 | Float_t GetZref(Int_t id) const { return fZref[id];} | |
168 | Int_t GetYbin() const { return Int_t(GetY()/0.016);} | |
169 | Int_t GetZbin() const { return Int_t(GetZ()/fPad[0]);} | |
e3cf3d02 | 170 | |
ae4e8b84 | 171 | inline AliTRDcluster* NextCluster(); |
71ea19a3 | 172 | inline AliTRDcluster* PrevCluster(); |
e44586fb | 173 | void Print(Option_t *o = "") const; |
71ea19a3 | 174 | inline void ResetClusterIter(Bool_t forward = kTRUE); |
980d5a2a | 175 | void Reset(Option_t *opt=""); |
ae4e8b84 | 176 | |
68f9b6bd | 177 | void SetC(Float_t c, Int_t typ=0) { fC[typ] = c;} |
1fd9389f | 178 | void SetChi2(Float_t chi2) { fChi2 = chi2;} |
16cca13f | 179 | inline void SetCovRef(const Double_t *cov); |
2eb10c34 | 180 | void SetErrorMsg(ETRDtrackletError err) { SETBIT(fErrorMsg, err);} |
e3cf3d02 | 181 | void SetIndexes(Int_t i, Int_t idx) { fIndexes[i] = idx; } |
182 | void SetLabels(Int_t *lbls) { memcpy(fLabels, lbls, 3*sizeof(Int_t)); } | |
e20bef2b | 183 | void SetKink(Bool_t k = kTRUE){ SetBit(kKink, k);} |
2eb10c34 | 184 | void SetPrimary(Bool_t k = kTRUE){ SetBit(kPrimary, k);} |
e20bef2b | 185 | void SetPID(Bool_t k = kTRUE) { SetBit(kPID, k);} |
f29f13a6 | 186 | void SetStandAlone(Bool_t st) { SetBit(kStandAlone, st); } |
b25a5e9e | 187 | void SetPt(Double_t pt) { fPt = pt;} |
29b87567 | 188 | void SetOwner(); |
eb2b4f91 | 189 | void SetPadPlane(AliTRDpadPlane *p); |
dd8059a8 | 190 | void SetPadLength(Float_t l) { fPad[0] = l;} |
191 | void SetPadWidth(Float_t w) { fPad[1] = w;} | |
cbe97468 | 192 | void SetTilt(Float_t tilt) { fPad[2] = tilt; } |
203967fc | 193 | void SetDetector(Int_t d) { fDet = d; } |
bee2b41e | 194 | void SetDX(Float_t inDX) { fdX = inDX;} |
4d6aee34 | 195 | void SetReconstructor(const AliTRDReconstructor *rec) {fkReconstructor = rec;} |
e3cf3d02 | 196 | void SetX0(Float_t x0) { fX0 = x0; } |
197 | void SetYref(Int_t i, Float_t y) { fYref[i] = y;} | |
198 | void SetZref(Int_t i, Float_t z) { fZref[i] = z;} | |
f29f13a6 | 199 | // void SetUsabilityMap(Long_t um) { fUsable = um; } |
16cca13f | 200 | void Update(const AliTRDtrackV1* trk); |
e3cf3d02 | 201 | void UpdateUsed(); |
202 | void UseClusters(); | |
e4f2f73d | 203 | |
d937ad7a | 204 | protected: |
3e778975 | 205 | void Copy(TObject &ref) const; |
e4f2f73d | 206 | |
e44586fb | 207 | private: |
3e778975 | 208 | inline void SetN(Int_t n); |
209 | inline void SetNUsed(Int_t n); | |
210 | inline void SetNShared(Int_t n); | |
560e5c05 | 211 | inline void Swap(Int_t &n1, Int_t &n2); |
212 | inline void Swap(Double_t &d1, Double_t &d2); | |
3e778975 | 213 | |
4d6aee34 | 214 | const AliTRDReconstructor *fkReconstructor;//! local reconstructor |
e3cf3d02 | 215 | AliTRDcluster **fClusterIter; //! clusters iterator |
8d2bec9e | 216 | Int_t fIndexes[kNclusters]; //! Indexes |
0323ef61 | 217 | Float_t fExB; // tg(a_L) @ tracklet location |
218 | Float_t fVD; // drift velocity @ tracklet location | |
219 | Float_t fT0; // time 0 @ tracklet location | |
220 | Float_t fS2PRF; // sigma^2 PRF for xd->0 and phi=a_L | |
221 | Float_t fDiffL; // longitudinal diffusion coefficient | |
222 | Float_t fDiffT; // transversal diffusion coefficient | |
71ea19a3 | 223 | Char_t fClusterIdx; //! clusters iterator |
7c3eecb8 | 224 | UChar_t fErrorMsg; // processing error |
6ad5e6b2 | 225 | UInt_t fN; // number of clusters attached/used/shared |
e3cf3d02 | 226 | Short_t fDet; // TRD detector |
8d2bec9e | 227 | AliTRDcluster *fClusters[kNclusters]; // Clusters |
2eb10c34 | 228 | Float_t fPad[4]; // local pad definition : length/width/tilt/anode wire offset |
1fd9389f | 229 | Float_t fYref[2]; // Reference y, dydx |
230 | Float_t fZref[2]; // Reference z, dz/dx | |
231 | Float_t fYfit[2]; // Fit y, dy/dx | |
232 | Float_t fZfit[2]; // Fit z | |
16cca13f | 233 | Float_t fPt; // Pt estimate @ tracklet [GeV/c] |
e44586fb | 234 | Float_t fdX; // length of time bin |
e3cf3d02 | 235 | Float_t fX0; // anode wire position |
236 | Float_t fX; // radial position of the tracklet | |
237 | Float_t fY; // r-phi position of the tracklet | |
238 | Float_t fZ; // z position of the tracklet | |
239 | Float_t fS2Y; // estimated resolution in the r-phi direction | |
240 | Float_t fS2Z; // estimated resolution in the z direction | |
68f9b6bd | 241 | Float_t fC[2]; // Curvature for standalone [0] rieman [1] vertex constrained |
e3cf3d02 | 242 | Float_t fChi2; // Global chi2 |
8d2bec9e | 243 | Float_t fdEdx[kNslices]; // dE/dx measurements for tracklet |
1fd9389f | 244 | Float_t fProb[AliPID::kSPECIES]; // PID probabilities |
e3cf3d02 | 245 | Int_t fLabels[3]; // most frequent MC labels and total number of different labels |
16cca13f | 246 | Double_t fRefCov[7]; // covariance matrix of the track in the yz plane + the rest of the diagonal elements |
d937ad7a | 247 | Double_t fCov[3]; // covariance matrix of the tracklet in the xy plane |
e4f2f73d | 248 | |
206d8e80 | 249 | ClassDef(AliTRDseedV1, 11) // The offline TRD tracklet |
e4f2f73d | 250 | }; |
251 | ||
252 | //____________________________________________________________ | |
e3cf3d02 | 253 | inline Float_t AliTRDseedV1::GetChi2Z() const |
e4f2f73d | 254 | { |
e3cf3d02 | 255 | Double_t dz = fZref[0]-fZfit[0]; dz*=dz; |
256 | Double_t cov[3]; GetCovAt(fX, cov); | |
257 | Double_t s2 = fRefCov[2]+cov[2]; | |
258 | return s2 > 0. ? dz/s2 : 0.; | |
e4f2f73d | 259 | } |
260 | ||
261 | //____________________________________________________________ | |
e3cf3d02 | 262 | inline Float_t AliTRDseedV1::GetChi2Y() const |
e4f2f73d | 263 | { |
e3cf3d02 | 264 | Double_t dy = fYref[0]-fYfit[0]; dy*=dy; |
265 | Double_t cov[3]; GetCovAt(fX, cov); | |
266 | Double_t s2 = fRefCov[0]+cov[0]; | |
267 | return s2 > 0. ? dy/s2 : 0.; | |
e4f2f73d | 268 | } |
269 | ||
f29f13a6 | 270 | //____________________________________________________________ |
271 | inline Float_t AliTRDseedV1::GetChi2Phi() const | |
272 | { | |
273 | Double_t dphi = fYref[1]-fYfit[1]; dphi*=dphi; | |
274 | Double_t cov[3]; GetCovAt(fX, cov); | |
275 | Double_t s2 = fRefCov[2]+cov[2]; | |
276 | return s2 > 0. ? dphi/s2 : 0.; | |
277 | } | |
278 | ||
16cca13f | 279 | |
280 | ||
3e778975 | 281 | //____________________________________________________________ |
282 | inline Double_t AliTRDseedV1::GetPID(Int_t is) const | |
283 | { | |
284 | if(is<0) return fProb[AliPID::kElectron]; | |
285 | if(is<AliPID::kSPECIES) return fProb[is]; | |
286 | return 0.; | |
287 | } | |
288 | ||
e4f2f73d | 289 | //____________________________________________________________ |
0906e73e | 290 | inline void AliTRDseedV1::Init(const AliRieman *rieman) |
e4f2f73d | 291 | { |
e44586fb | 292 | fZref[0] = rieman->GetZat(fX0); |
293 | fZref[1] = rieman->GetDZat(fX0); | |
294 | fYref[0] = rieman->GetYat(fX0); | |
295 | fYref[1] = rieman->GetDYat(fX0); | |
4d6aee34 | 296 | if(fkReconstructor && fkReconstructor->IsHLT()){ |
d07eec70 | 297 | fRefCov[0] = 1; |
298 | fRefCov[2] = 10; | |
299 | }else{ | |
300 | fRefCov[0] = rieman->GetErrY(fX0); | |
301 | fRefCov[2] = rieman->GetErrZ(fX0); | |
302 | } | |
68f9b6bd | 303 | fC[0] = rieman->GetC(); |
55ef6967 | 304 | fChi2 = rieman->GetChi2(); |
e4f2f73d | 305 | } |
306 | ||
ae4e8b84 | 307 | //____________________________________________________________ |
308 | inline AliTRDcluster* AliTRDseedV1::NextCluster() | |
309 | { | |
71ea19a3 | 310 | // Mimic the usage of STL iterators. |
311 | // Forward iterator | |
312 | ||
ae4e8b84 | 313 | fClusterIdx++; fClusterIter++; |
8d2bec9e | 314 | while(fClusterIdx < kNclusters){ |
71ea19a3 | 315 | if(!(*fClusterIter)){ |
316 | fClusterIdx++; | |
317 | fClusterIter++; | |
318 | continue; | |
319 | } | |
320 | return *fClusterIter; | |
321 | } | |
4d6aee34 | 322 | return NULL; |
71ea19a3 | 323 | } |
324 | ||
325 | //____________________________________________________________ | |
326 | inline AliTRDcluster* AliTRDseedV1::PrevCluster() | |
327 | { | |
328 | // Mimic the usage of STL iterators. | |
329 | // Backward iterator | |
330 | ||
331 | fClusterIdx--; fClusterIter--; | |
332 | while(fClusterIdx >= 0){ | |
333 | if(!(*fClusterIter)){ | |
334 | fClusterIdx--; | |
335 | fClusterIter--; | |
336 | continue; | |
337 | } | |
338 | return *fClusterIter; | |
339 | } | |
4d6aee34 | 340 | return NULL; |
71ea19a3 | 341 | } |
342 | ||
343 | //____________________________________________________________ | |
344 | inline void AliTRDseedV1::ResetClusterIter(Bool_t forward) | |
345 | { | |
346 | // Mimic the usage of STL iterators. | |
347 | // Facilitate the usage of NextCluster for forward like | |
348 | // iterator (kTRUE) and PrevCluster for backward like iterator (kFALSE) | |
349 | ||
350 | if(forward){ | |
351 | fClusterIter = &fClusters[0]; fClusterIter--; | |
352 | fClusterIdx=-1; | |
353 | } else { | |
8d2bec9e | 354 | fClusterIter = &fClusters[kNclusters-1]; fClusterIter++; |
355 | fClusterIdx=kNclusters; | |
71ea19a3 | 356 | } |
ae4e8b84 | 357 | } |
358 | ||
16cca13f | 359 | //____________________________________________________________ |
360 | inline void AliTRDseedV1::SetCovRef(const Double_t *cov) | |
361 | { | |
362 | // Copy some "important" covariance matrix elements | |
363 | // var(y) | |
364 | // cov(y,z) var(z) | |
365 | // var(snp) | |
366 | // var(tgl) | |
367 | // cov(tgl, 1/pt) var(1/pt) | |
368 | ||
369 | memcpy(&fRefCov[0], cov, 3*sizeof(Double_t)); // yz full covariance | |
370 | fRefCov[3] = cov[ 5]; // snp variance | |
371 | fRefCov[4] = cov[ 9]; // tgl variance | |
372 | fRefCov[5] = cov[13]; // cov(tgl, 1/pt) | |
373 | fRefCov[6] = cov[14]; // 1/pt variance | |
374 | } | |
375 | ||
376 | ||
3e778975 | 377 | //____________________________________________________________ |
378 | inline void AliTRDseedV1::SetN(Int_t n) | |
379 | { | |
6ad5e6b2 | 380 | if(n<0 || n>kNclusters) return; |
980d5a2a | 381 | fN &= ~kMask; |
382 | fN |= (n&kMask); | |
3e778975 | 383 | } |
384 | ||
385 | //____________________________________________________________ | |
386 | inline void AliTRDseedV1::SetNUsed(Int_t n) | |
387 | { | |
6ad5e6b2 | 388 | if(n<0 || n>kNclusters) return; |
980d5a2a | 389 | UInt_t mask(kMask<<kNbits); |
6ad5e6b2 | 390 | fN &= ~mask; |
980d5a2a | 391 | n=n<<kNbits; fN |= (n&mask); |
3e778975 | 392 | } |
393 | ||
394 | //____________________________________________________________ | |
395 | inline void AliTRDseedV1::SetNShared(Int_t n) | |
396 | { | |
6ad5e6b2 | 397 | if(n<0 || n>kNclusters) return; |
980d5a2a | 398 | UInt_t mask((kMask<<kNbits)<<kNbits); |
6ad5e6b2 | 399 | fN &= ~mask; |
980d5a2a | 400 | n = (n<<kNbits)<<kNbits; fN|=(n&mask); |
3e778975 | 401 | } |
402 | ||
560e5c05 | 403 | //____________________________________________________________ |
404 | inline void AliTRDseedV1::Swap(Int_t &n1, Int_t &n2) | |
405 | { | |
406 | // swap values of n1 with n2 | |
407 | Int_t tmp(n1); | |
408 | n1=n2; n2=tmp; | |
409 | } | |
410 | ||
411 | //____________________________________________________________ | |
412 | inline void AliTRDseedV1::Swap(Double_t &d1, Double_t &d2) | |
413 | { | |
414 | // swap values of d1 with d2 | |
415 | Double_t tmp(d1); | |
416 | d1=d2; d2=tmp; | |
417 | } | |
418 | ||
3e778975 | 419 | |
e4f2f73d | 420 | #endif |
421 | ||
47d5d320 | 422 | |
6e49cfdb | 423 |