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1// $Id$
2// Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
3
4/**************************************************************************
5 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
6 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
7 * full copyright notice. *
8 **************************************************************************/
9#ifndef ALIEVE_V0_H
10#define ALIEVE_V0_H
11
12/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
13 * See cxx source for full Copyright notice */
14
15
16/***********************************************************************
17* This code defines the reconstructed v0 visualized with EVE
18*
19* Ludovic Gaudichet (gaudichet@to.infn.it)
20************************************************************************/
21
22#include <TEveVSDStructs.h>
23#include <TEveElement.h>
24#include <TEveTrack.h>
25
26#include <TPolyMarker3D.h>
27#include <TPolyLine3D.h>
28
29class TH1F;
30class TH2F;
31
32
33class V0List;
34
35class AliEveV0 : public TEveElement,
36 public TPolyMarker3D
37{
38 friend class V0List;
39
40 AliEveV0(const AliEveV0&); // Not implemented
41 AliEveV0& operator=(const AliEveV0&); // Not implemented
42
43public:
44 AliEveV0();
45 AliEveV0(TEveRecTrack* tNeg, TEveRecTrack* tPos, TEveRecV0* v0,
46 TEveTrackPropagator* rs);
47 virtual ~AliEveV0();
48
49 typedef std::vector<TEvePathMark*> vpPathMark_t;
50 typedef std::vector<TEvePathMark*>::iterator vpPathMark_i;
51 void AddPathMarkPos(TEvePathMark* pm) { fPathMarksPos.push_back(pm); }
52 void AddPathMarkNeg(TEvePathMark* pm) { fPathMarksNeg.push_back(pm); }
53
54 void Reset(TPolyLine3D* polyLine);
55
56 void MakeTrack(vpPathMark_t& pathMark, TEveVector& vtx, TEveVector& p,
57 Int_t charge, Float_t beta, TPolyLine3D& polyLine);
58
59 void MakeV0path();
60 void MakeV0();
61
62 virtual void PaintDaughters(Option_t* option="") {
63 if(fRnrSelf) {fPolyLineNeg.Paint(option);fPolyLinePos.Paint(option);} }
64 virtual void Paint(Option_t* option="") {
65 if(fRnrSelf) TPolyMarker3D::Paint(option);}
66 virtual void PaintPath(Option_t* option="") {
67 if(fRnrSelf) fPolyLineV0.Paint(option);}
68
69 virtual void SetMainColor(Color_t col) {
70 fMarkerColor = col; fMainColorPtr = &fMarkerColor;
71 fPolyLineV0.SetLineColor(fMarkerColor);}
72 virtual void SetTracksColor(Color_t cNeg, Color_t cPos) {
73 fPolyLineNeg.SetLineColor(cNeg); fPolyLinePos.SetLineColor(cPos); }
74 void SetRnrStyle(TEveTrackPropagator* rs) { fRnrStyle = rs; }
75 void SetESDIndex(Int_t ind) { fESDIndex = ind;}
76 void SetDaughterDCA(Float_t dca);
77 void SetCosPointingAngle(Float_t cos);
78 void SetDecayLength(Float_t len);
79 void SetDecayLength(Float_t primx, Float_t primy, Float_t primz);
80
81 Float_t GetDaughterDCA() const;
82 Float_t GetCosPointingAngle() const;
83 Float_t GetRadius() const;
84 Float_t GetDecayLength() const;
85
86 Float_t GetP2() const;
87 Float_t GetMomentum() const;
88 Float_t GetPt() const;
89 Float_t GetPt2() const;
90 Float_t GetPx() const;
91 Float_t GetPy() const;
92 Float_t GetPz() const;
93 Float_t GetPseudoRapidity() const;
94 Float_t GetAlphaArmenteros() const;
95 Float_t GetPtArmenteros() const;
96
97 Float_t GetK0sE() const {return 0;};
98 Float_t GetLamE() const {return 0;};
99 Float_t GetAntiLamE() const {return 0;};
100 Float_t GetK0mass() const;
101 Float_t GetLamMass() const;
102 Float_t GetAntiLamMass() const;
103
104 Float_t GetPionMinusE() const;
105 Float_t GetPionPlusE() const;
106 Float_t GetProtonE() const;
107 Float_t GetPBarE() const;
108
109 Float_t GetPosDCAtoPrim() const;
110 Float_t GetPosP2() const;
111 Float_t GetPosP() const;
112 Float_t GetPosPt() const;
113 Float_t GetPosPseudoRapidity() const;
114
115 Float_t GetNegDCAtoPrim() const;
116 Float_t GetNegP2() const;
117 Float_t GetNegP() const;
118 Float_t GetNegPt() const;
119 Float_t GetNegPseudoRapidity() const;
120 Int_t GetESDIndex() const {return fESDIndex;};
121
122 virtual const Text_t* GetName() const { return Form("ESDv0_%i",fESDIndex); }
123 virtual const Text_t* GetTitle() const { return Form("ESDv0_%i",fESDIndex); }
124 Int_t GetLabelPos() const { return fLabel_pos; }
125 Int_t GetLabelNeg() const { return fLabel_neg; }
126 TEveTrackPropagator* GetPropagator() const { return fRnrStyle; }
127 TPolyLine3D* GetPolyLineNeg() {return &fPolyLineNeg;}
128 TPolyLine3D* GetPolyLinePos() {return &fPolyLinePos;}
129 TPolyLine3D* GetPolyLineV0() {return &fPolyLineV0;}
130
131protected:
132
133 TEveVector fV_neg; // Vertex of negative track
134 TEveVector fP_neg; // Momentum of negative track
135 TEveVector fV_pos; // Vertex of positive track
136 TEveVector fP_pos; // Momentum of positive track
137
138 TEveVector fV_v0; // Point of closest approach
139 TEveVector fV0_birth; // Reconstucted birth point of neutral particle
140
141 Float_t fBeta_neg;
142 Float_t fBeta_pos;
143
144 Int_t fLabel_neg;
145 Int_t fLabel_pos;
146
147 vpPathMark_t fPathMarksNeg;
148 vpPathMark_t fPathMarksPos;
149 TEveTrackPropagator *fRnrStyle;
150
151 TPolyLine3D fPolyLineNeg;
152 TPolyLine3D fPolyLinePos;
153 TPolyLine3D fPolyLineV0;
154
155 Int_t fESDIndex;
156 Float_t fDaughterDCA;
157 Float_t fCosPointingAngle;
158 Float_t fDecayLength;
159
160 static const Float_t fgkMassPion2;
161 static const Float_t fgkMassProton2;
162
163 ClassDef(AliEveV0, 1); // Visual representation of a AliEveV0.
164}; // endclass AliEveV0
165
166
167//______________________________________________________________________________
168inline void AliEveV0::SetDaughterDCA(Float_t dca) {
169 fDaughterDCA = dca;
170}
171
172inline void AliEveV0::SetCosPointingAngle(Float_t cos) {
173 fCosPointingAngle = cos;
174}
175
176inline void AliEveV0::SetDecayLength(Float_t len) {
177 fDecayLength = len;
178}
179
180
181//______________________________________________________________________________
182inline Float_t AliEveV0::GetPt2() const {
183 Float_t px = fP_neg.x+fP_pos.x, py = fP_neg.y+fP_pos.y;
184 return (px*px+py*py);
185}
186
187inline Float_t AliEveV0::GetP2() const {
188
189 Float_t px = fP_neg.x+fP_pos.x, py = fP_neg.y+fP_pos.y, pz = fP_neg.z+fP_pos.z;
190 return (px*px+py*py+pz*pz);
191}
192
193inline Float_t AliEveV0::GetPt() const {
194 return sqrt(GetPt2());
195}
196
197inline Float_t AliEveV0::GetMomentum() const {
198 return sqrt(GetP2());
199}
200
201inline Float_t AliEveV0::GetPx() const {
202 return (fP_neg.x+fP_pos.x);
203}
204
205inline Float_t AliEveV0::GetPy() const {
206 return (fP_neg.y+fP_pos.y);
207}
208
209inline Float_t AliEveV0::GetPz() const {
210 return (fP_neg.z+fP_pos.z);
211}
212
213//______________________________________________________________________________
214
215inline Float_t AliEveV0::GetDaughterDCA() const {
216 return fDaughterDCA;
217}
218
219inline Float_t AliEveV0::GetCosPointingAngle() const {
220return fCosPointingAngle;
221}
222
223inline Float_t AliEveV0::GetRadius() const {
224 return sqrt(fV_v0.x*fV_v0.x + fV_v0.y*fV_v0.y);
225}
226
227inline Float_t AliEveV0::GetDecayLength() const {
228return fDecayLength;
229}
230
231inline Float_t AliEveV0::GetPseudoRapidity() const {
232 Float_t theta = acos( GetPz()/GetMomentum() );
233 return ( -log(tan(theta/2.)) );
234}
235
236//______________________________________________________________________________
237
238inline Float_t AliEveV0::GetPionMinusE() const {
239 return sqrt(fgkMassPion2+GetNegP2());
240}
241
242inline Float_t AliEveV0::GetPionPlusE() const {
243 return sqrt(fgkMassPion2+GetPosP2());
244}
245inline Float_t AliEveV0::GetProtonE() const {
246 return sqrt(fgkMassProton2+GetPosP2());
247
248}
249inline Float_t AliEveV0::GetPBarE() const {
250 return sqrt(fgkMassProton2+GetNegP2());
251}
252
253//______________________________________________________________________________
254
255inline Float_t AliEveV0::GetPosP2() const {
256 return (fP_pos.x*fP_pos.x + fP_pos.y*fP_pos.y + fP_pos.z*fP_pos.z);
257}
258
259inline Float_t AliEveV0::GetPosP() const {
260 return sqrt(GetPosP2());
261}
262
263inline Float_t AliEveV0::GetPosPt() const {
264 return sqrt(fP_pos.x*fP_pos.x + fP_pos.y*fP_pos.y);
265}
266
267inline Float_t AliEveV0::GetPosPseudoRapidity() const {
268 Float_t theta = acos( fP_pos.z/GetPosP() );
269 return ( -log(tan(theta/2.)) );
270}
271
272inline Float_t AliEveV0::GetPosDCAtoPrim() const {
273 return 0;
274}
275
276//______________________________________________________________________________
277inline Float_t AliEveV0::GetNegP2() const {
278 return (fP_neg.x*fP_neg.x + fP_neg.y*fP_neg.y + fP_neg.z*fP_neg.z);
279}
280
281inline Float_t AliEveV0::GetNegP() const {
282 return sqrt(GetNegP2());
283}
284
285inline Float_t AliEveV0::GetNegPt() const {
286 return sqrt(fP_neg.x*fP_neg.x + fP_neg.y*fP_neg.y);
287}
288
289inline Float_t AliEveV0::GetNegPseudoRapidity() const {
290 Float_t theta = acos( fP_neg.z/GetNegP() );
291 return ( -log(tan(theta/2.)) );
292}
293
294inline Float_t AliEveV0::GetNegDCAtoPrim() const {
295 return 0;
296}
297
298//______________________________________________________________________________
299
300inline Float_t AliEveV0::GetK0mass() const {
301 Float_t energy = GetPionMinusE() + GetPionPlusE();
302 return sqrt( energy*energy - GetP2() );
303}
304
305inline Float_t AliEveV0::GetLamMass() const {
306 Float_t energy = GetPionMinusE() + GetProtonE();
307 return sqrt( energy*energy - GetP2() );
308}
309
310inline Float_t AliEveV0::GetAntiLamMass() const {
311 Float_t energy = GetPionPlusE() + GetPBarE();
312 return sqrt( energy*energy - GetP2() );
313}
314
315
316
317/******************************************************************************/
318// V0List
319/******************************************************************************/
320
321class V0List : public TEveElementList
322{
323 V0List(const V0List&); // Not implemented
324 V0List& operator=(const V0List&); // Not implemented
325
326public:
327 V0List();
328 V0List(TEveTrackPropagator* rs);
329 V0List(const Text_t* name, TEveTrackPropagator* rs=0);
330 virtual ~V0List();
331
332 virtual const Text_t* GetTitle() const { return fTitle; }
333 virtual void SetTitle(const Text_t* t) { fTitle = t; }
334 virtual void SetTracksColor(Color_t cNeg, Color_t cPos) {
335 fNegColor = cNeg; fPosColor = cPos;}
336
337 virtual Bool_t CanEditMainColor() { return kTRUE; }
338
339 virtual void Paint(Option_t* option="");
340
341 void SetRnrStyle(TEveTrackPropagator* rst) { fRnrStyle= rst; }
342 TEveTrackPropagator* GetPropagator() { return fRnrStyle; }
343
344 Bool_t GetRnrV0vtx() const { return fRnrV0vtx; }
345 Bool_t GetRnrV0path() const { return fRnrV0path; }
346 Bool_t GetRnrDaughters() const { return fRnrDaughters; }
347
348 void SetRnrV0vtx(Bool_t);
349 void SetRnrV0path(Bool_t);
350 void SetRnrDaughters(Bool_t);
351 void SetMin(Int_t i, Float_t val) {
352 if ((i>=0)&&(i<fgkNcutVar)) fMin[i]=val;}
353 void SetMax(Int_t i, Float_t val) {
354 if ((i>=0)&&(i<fgkNcutVar)) fMax[i]=val;}
355
356 void MakeV0s();
357 void MakeMarkers();
358
359 TH1F* GetHist(Int_t i) {
360 if ((i>=0)&&(i<fgkNcutVar)) return fHist[i]; else return 0;}
361 TH2F* GetHist2D(Int_t i) {
362 if ((i>=0)&&(i<fgkNcutVar2D)) return fHist2D[i]; else return 0;}
363 Float_t GetMin(Int_t i) {
364 if ((i>=0)&&(i<fgkNcutVar)) return fMin[i]; else return 0;}
365 Float_t GetMax(Int_t i) {
366 if ((i>=0)&&(i<fgkNcutVar)) return fMax[i]; else return 0;}
367 void GetV0IndexRange(Int_t &imin, Int_t &imax);
368
369 Float_t GetMaxR() const { return fRnrStyle->fMaxZ; }
370 Float_t GetMaxZ() const { return fRnrStyle->fMaxR; }
371 Float_t GetMaxOrbs() const { return fRnrStyle->fMaxOrbs; }
372 Float_t GetMinAng() const { return fRnrStyle->fMinAng; }
373 Float_t GetDelta() const { return fRnrStyle->fDelta; }
374 Bool_t GetFitDaughters() const { return fRnrStyle->fFitDaughters; }
375 Bool_t GetFitDecay() const { return fRnrStyle->fFitDecay; }
376
377 void AdjustHist(Int_t iHist);
378 void UnFill(AliEveV0* v0);
379 void Filter(AliEveV0* v0);
380 void FilterAll();
381 void PtFilter(Float_t min, Float_t max);
382
383 void K0sMFilter(Float_t min, Float_t max);
384 void LamMFilter(Float_t min, Float_t max);
385 void ALamMFilter(Float_t min, Float_t max);
386 void CosPointingFilter(Float_t min, Float_t max);
387 void DaughterDCAFilter(Float_t min, Float_t max);
388 void RadiusFilter(Float_t min, Float_t max);
389 void EtaFilter(Float_t min, Float_t max);
390 void NegPtFilter(Float_t min, Float_t max);
391 void NegEtaFilter(Float_t min, Float_t max);
392 void PosPtFilter(Float_t min, Float_t max);
393 void PosEtaFilter(Float_t min, Float_t max);
394 void IndexFilter(Float_t min, Float_t max);
395
396
397private:
398 void Init();
399
400protected:
401 TString fTitle;
402
403 TEveTrackPropagator *fRnrStyle;
404
405 Bool_t fRnrDaughters;
406 Bool_t fRnrV0vtx;
407 Bool_t fRnrV0path;
408
409 Color_t fNegColor;
410 Color_t fPosColor;
411
412 static const Int_t fgkNcutVar = 13;
413 TH1F *fHist[fgkNcutVar];
414 Float_t fMin[fgkNcutVar];
415 Float_t fMax[fgkNcutVar];
416
417 static const Int_t fgkNcutVar2D = 1;
418 TH2F *fHist2D[fgkNcutVar2D];
419 Float_t fMinX[fgkNcutVar2D];
420 Float_t fMinY[fgkNcutVar2D];
421 Float_t fMaxX[fgkNcutVar2D];
422 Float_t fMaxY[fgkNcutVar2D];
423
424 ClassDef(V0List, 1); // A list of AliEveV0 objecs.
425};
426
427
428#endif