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