[u/mrichter/AliRoot.git] / PWG1 / TRD / AliTRDefficiency.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id: AliTRDefficiency.cxx 27496 2008-07-22 08:35:45Z cblume $ */

////////////////////////////////////////////////////////////////////////////
//                                                                        //
//  Reconstruction QA                                                     //
//                                                                        //
//  Authors:                                                              //
//    Markus Fasel <M.Fasel@gsi.de>                                       //
//                                                                        //
////////////////////////////////////////////////////////////////////////////

#include <TClonesArray.h>
#include <TObjArray.h>
#include <TProfile.h>
#include "TTreeStream.h"

#include "AliPID.h"
#include "AliESDtrack.h"
#include "AliTrackReference.h"
#include "AliExternalTrackParam.h"
#include "AliTracker.h"
#include "AliAnalysisManager.h"

#include "Cal/AliTRDCalPID.h"
#include "AliTRDefficiency.h"
#include "info/AliTRDtrackInfo.h"

ClassImp(AliTRDefficiency)

//____________________________________________________________________
AliTRDefficiency::AliTRDefficiency()
  :AliTRDrecoTask("efficiency", "TRD barrel tracking efficiency checker")
  ,fMissed(0x0)
{
  //
  // Default constructor
  //
}

//____________________________________________________________________
AliTRDefficiency::~AliTRDefficiency()
{
  // Destructor
  if(fMissed){
    fMissed->Delete();
    delete fMissed;
  }
}

//____________________________________________________________________
void  AliTRDefficiency::CreateOutputObjects()
{
  //
  // Create output objects
  //

  OpenFile(0, "RECREATE");
  const Int_t nbins = AliTRDCalPID::kNMom;
  Float_t xbins[nbins+1] = {.5, .7, .9, 1.3, 1.7, 2.4, 3.5, 4.5, 5.5, 7., 9., 11.};

  TH1 *h = 0x0;
  fContainer = new TObjArray();
  for(Int_t is=0; is<AliPID::kSPECIES; is++){
    fContainer->Add(h = new TProfile(Form("h%s", AliTRDCalPID::GetPartSymb(is)), "", nbins, xbins));
    h->SetLineColor(AliTRDCalPID::GetPartColor(is));
    h->SetMarkerColor(AliTRDCalPID::GetPartColor(is));
    h->SetMarkerStyle(7);
  }
  fContainer->Add(h = new TProfile("h", "", nbins, xbins));
  h->SetMarkerStyle(7);
} 

//____________________________________________________________________
void AliTRDefficiency::Exec(Option_t *)
{
  //
  // Do it
  //

  Int_t labelsacc[10000]; 
  memset(labelsacc, 0, sizeof(Int_t) * 10000);
	
  if(!fMissed){ 
    fMissed = new TClonesArray("AliTRDtrackInfo", 10);
    fMissed->SetOwner();
  }

  Float_t mom;
  Int_t selection[10000], nselect = 0;
  ULong_t status; Int_t pidx;
  Int_t nTRD = 0, nTPC = 0, nMiss = 0;
  AliTRDtrackInfo     *track = 0x0;
  AliTrackReference     *ref = 0x0;
  AliExternalTrackParam *esd = 0x0;
  for(Int_t itrk=0; itrk<fTracks->GetEntriesFast(); itrk++){
    track = (AliTRDtrackInfo*)fTracks->UncheckedAt(itrk);

		if(!track->HasESDtrack()) continue;
    status = track->GetStatus();

    // missing TPC propagation - interesting for SA
    if(!(status&AliESDtrack::kTPCout)) continue;

    // missing MC info.
    if(HasMCdata() && track->GetNTrackRefs() <= 1) continue;
   
    nTPC++;
    selection[nselect++]=itrk;
    ref  = track->GetTrackRef(0);
    esd  = track->GetESDinfo()->GetOuterParam();
    mom  = ref ? ref->P(): esd->P();
    pidx = AliTRDCalPID::GetPartIndex(track->GetPDG());
    pidx = TMath::Max(pidx, 0);

    //Int_t n = track->GetNumberOfClusters(); 
    // where are this tracklets ???
    //if(ncls0 > ncls1) printf("%3d ESD[%3d] TRD[%3d|%3d]\n", itrk, ncls0, ncls1, n);
    if(track->GetNumberOfClustersRefit()){ 
      ((TProfile*)fContainer->At(pidx))->Fill(mom, 1.);
			labelsacc[nTRD] = track->GetLabel();
      nTRD++;
      continue;
    }


    Float_t xmed, xleng;
    Int_t iref = 1; Bool_t found = kFALSE;
    while((ref = track->GetTrackRef(iref))){
      xmed = .5*(ref->LocalX() + track->GetTrackRef(iref-1)->LocalX());
      xleng= (ref->LocalX() - track->GetTrackRef(iref-1)->LocalX());
      if(TMath::Abs(xmed - 298.5) < .5 &&
        TMath::Abs(xleng - 3.7) < .1){ 
        found = kTRUE;
        break;
      }
      iref++;
    }
    if(!found){ 
      nTPC--;
      // track missing first layer. Maybe interesting for SA.
      continue;
    }
    nselect--;
    new ((*fMissed)[nMiss]) AliTRDtrackInfo(*track);
    nMiss++;
  }
  AliDebug(2, Form("%3d Tracks: ESD[%3d] TPC[%3d] TRD[%3d | %5.2f%%] Off[%d]", (Int_t)AliAnalysisManager::GetAnalysisManager()->GetCurrentEntry(), fTracks->GetEntriesFast(), nTPC, nTRD, nTPC ? 1.E2*nTRD/float(nTPC) : 0., fMissed->GetEntriesFast()));


  // Find double tracks
  Float_t threshold = 10.;
  AliTrackReference *refMiss = 0x0;
  AliExternalTrackParam *op = 0x0;
  AliTRDtrackInfo       *tt = 0x0;
  for(Int_t imiss=0; imiss<nMiss; imiss++){
    //printf("Searching missing %d ...\n", imiss);

    // get outer param of missed
    tt = (AliTRDtrackInfo*)fMissed->UncheckedAt(imiss);
    op = tt->GetESDinfo()->GetOuterParam();
    Double_t alpha = op->GetAlpha(), cosa = TMath::Cos(alpha), sina = TMath::Sin(alpha);

    Double_t xyz[3], x0, y0, z0, x, y, z, dx, dy, dz, d;

    Bool_t bFOUND = kFALSE;
    for(Int_t iselect=0; iselect<nselect; iselect++){
      track = (AliTRDtrackInfo*)fTracks->UncheckedAt(selection[iselect]);

      // check first MC ... if available
      d = 0;
      for(Int_t iref=0; iref<track->GetNTrackRefs(); iref++){
        if(!(ref = track->GetTrackRef(iref))) continue;
        if((refMiss = tt->GetTrackRef(iref))){
          dy = ref->LocalY() - refMiss->LocalY();
          dz = ref->Z() - refMiss->Z();
        } else {
          // compare missOP with refTrackRef in LTC
          x0 = ref->LocalX();
          op->GetYAt(x0, AliTracker::GetBz(), y0);
          op->GetZAt(x0, AliTracker::GetBz(), z0);
          dy = y0 - ref->LocalY();
          dz = z0 - ref->Z();
        }
        d += (dy*dy + dz*dz);
      }
      //printf("\td[%d] = %f N[%d]\n", selection[iselect], d, track->GetNTrackRefs());
      if((track->GetNTrackRefs())){ 
        d /= track->GetNTrackRefs();
        if(d < threshold){
          //printf("\t\tFound %2d in ref[%3d] : d[%f]\n", imiss, selection[iselect], d/track->GetNTrackRefs());
          bFOUND = kTRUE; break;
        }
      }

      // process outer param ... always available
      // compare missOP with OP in GTC
      esd = track->GetESDinfo()->GetOuterParam();
      esd->GetXYZ(xyz);
      x0 = esd->GetX();
      op->GetYAt(x0, AliTracker::GetBz(), y0);
      op->GetZAt(x0, AliTracker::GetBz(), z0);
      x = x0*cosa - y0*sina;
      y = x0*sina + y0*cosa;
      z = z0;
      dx=xyz[0]-x;
      dy=xyz[1]-y;
      dz=xyz[2]-z;
      d = dx*dx+dy*dy+dz*dz;
      //printf("\td[%d] = %f op\n", selection[iselect], d);
      if(d < threshold){
        //printf("\t\tFound %2d in op[%3d]  : d[%f] dx[%5.2f] dy[%5.2f] dz[%5.2f]\n", imiss, selection[iselect], d, dx, dy, dz);
        bFOUND = kTRUE; break;
      }
    }
    if(bFOUND) nTPC--;
    else{ 
      ref = tt->GetTrackRef(0);
      mom = ref ? ref->P(): op->P();
      pidx = AliTRDCalPID::GetPartIndex(tt->GetPDG());
      pidx = TMath::Max(pidx, 0);
      ((TProfile*)fContainer->At(pidx))->Fill(mom, 0.);
      AliDebug(2, Form("  NOT bFOUND Id[%d] Mom[%f]\n", tt->GetTrackId(), mom));
    }
  }

  AliDebug(2, Form("%3d Tracks: ESD[%3d] TPC[%3d] TRD[%3d | %5.2f%%] Off[%d]", (Int_t)AliAnalysisManager::GetAnalysisManager()->GetCurrentEntry(), fTracks->GetEntriesFast(), nTPC, nTRD, nTPC ? 1.E2*nTRD/float(nTPC) : 0., fMissed->GetEntriesFast()));

  //fMissed->Delete();
	// check for double countings
	Int_t indices[10000]; memset(indices, 0, sizeof(Int_t) * 10000);
	TMath::Sort(nTRD, labelsacc, indices);
	if(DebugLevel() > 2){
	for(Int_t itk = 0; itk < nTRD - 1; itk++)
		if(labelsacc[indices[itk]] ==labelsacc[indices[itk + 1]]) printf("Double counted MC track: %d\n", labelsacc[indices[itk]]);
	}
  PostData(0, fContainer);
}


//____________________________________________________________________
Bool_t AliTRDefficiency::GetRefFigure(Int_t ifig)
{
// Steer reference figures

  Bool_t bFIRST = kTRUE;
  TProfile *h = 0x0;
  switch(ifig){
  case 0:
    h = (TProfile*)fContainer->At(AliPID::kSPECIES);
    for(Int_t is=0; is<AliPID::kSPECIES; is++){
      h->Add((TProfile*)fContainer->At(is));
    }
    h->SetMarkerColor(kBlack);
    h->SetLineColor(kBlack);
    h->GetXaxis()->SetTitle("p [GeV/c]");
    h->Draw("e1");
    break;
  case 1:
    bFIRST = kTRUE;
    for(Int_t is=0; is<AliPID::kSPECIES; is++){
      if(!(h = (TProfile*)fContainer->At(is))) continue;
      if(bFIRST){
        h->Draw("e1");
        h->GetXaxis()->SetTitle("p [GeV/c]");
      } else h->Draw("same e1");
      bFIRST = kFALSE;
    }
    break;
  }
  return kTRUE;
}


//____________________________________________________________________
Bool_t AliTRDefficiency::PostProcess()
{
  fNRefFigures = HasMCdata() ? 2 : 1; 
  return kTRUE;
}
Commit	Line	Data
1ee39b3a	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	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	**************************************************************************/
	15
	16	/* $Id: AliTRDefficiency.cxx 27496 2008-07-22 08:35:45Z cblume $ */
	17
	18	////////////////////////////////////////////////////////////////////////////
	19	// //
	20	// Reconstruction QA //
	21	// //
	22	// Authors: //
	23	// Markus Fasel <M.Fasel@gsi.de> //
	24	// //
	25	////////////////////////////////////////////////////////////////////////////
	26
	27	#include <TClonesArray.h>
	28	#include <TObjArray.h>
	29	#include <TProfile.h>
	30	#include "TTreeStream.h"
	31
	32	#include "AliPID.h"
	33	#include "AliESDtrack.h"
	34	#include "AliTrackReference.h"
	35	#include "AliExternalTrackParam.h"
	36	#include "AliTracker.h"
	37	#include "AliAnalysisManager.h"
	38
	39	#include "Cal/AliTRDCalPID.h"
	40	#include "AliTRDefficiency.h"
	41	#include "info/AliTRDtrackInfo.h"
	42
	43	ClassImp(AliTRDefficiency)
	44
	45	//____________________________________________________________________
	46	AliTRDefficiency::AliTRDefficiency()
	47	:AliTRDrecoTask("efficiency", "TRD barrel tracking efficiency checker")
	48	,fMissed(0x0)
	49	{
	50	//
	51	// Default constructor
	52	//
	53	}
	54
	55	//____________________________________________________________________
	56	AliTRDefficiency::~AliTRDefficiency()
	57	{
	58	// Destructor
	59	if(fMissed){
	60	fMissed->Delete();
	61	delete fMissed;
	62	}
	63	}
	64
65	//____________________________________________________________________
66	void AliTRDefficiency::CreateOutputObjects()
67	{
68	//
69	// Create output objects
70	//
71
72	OpenFile(0, "RECREATE");
73	const Int_t nbins = AliTRDCalPID::kNMom;
74	Float_t xbins[nbins+1] = {.5, .7, .9, 1.3, 1.7, 2.4, 3.5, 4.5, 5.5, 7., 9., 11.};
75
76	TH1 *h = 0x0;
77	fContainer = new TObjArray();
78	for(Int_t is=0; is<AliPID::kSPECIES; is++){
79	fContainer->Add(h = new TProfile(Form("h%s", AliTRDCalPID::GetPartSymb(is)), "", nbins, xbins));
80	h->SetLineColor(AliTRDCalPID::GetPartColor(is));
81	h->SetMarkerColor(AliTRDCalPID::GetPartColor(is));
82	h->SetMarkerStyle(7);
83	}
84	fContainer->Add(h = new TProfile("h", "", nbins, xbins));
85	h->SetMarkerStyle(7);
86	}
87
88	//____________________________________________________________________
89	void AliTRDefficiency::Exec(Option_t *)
90	{
91	//
92	// Do it
93	//
94
95	Int_t labelsacc[10000];
96	memset(labelsacc, 0, sizeof(Int_t) * 10000);
97
98	if(!fMissed){
99	fMissed = new TClonesArray("AliTRDtrackInfo", 10);
100	fMissed->SetOwner();
101	}
102
103	Float_t mom;
104	Int_t selection[10000], nselect = 0;
105	ULong_t status; Int_t pidx;
106	Int_t nTRD = 0, nTPC = 0, nMiss = 0;
107	AliTRDtrackInfo *track = 0x0;
108	AliTrackReference *ref = 0x0;
109	AliExternalTrackParam *esd = 0x0;
110	for(Int_t itrk=0; itrk<fTracks->GetEntriesFast(); itrk++){
111	track = (AliTRDtrackInfo*)fTracks->UncheckedAt(itrk);
112
113	if(!track->HasESDtrack()) continue;
114	status = track->GetStatus();
115
116	// missing TPC propagation - interesting for SA
117	if(!(status&AliESDtrack::kTPCout)) continue;
118
119	// missing MC info.
120	if(HasMCdata() && track->GetNTrackRefs() <= 1) continue;
121
122	nTPC++;
123	selection[nselect++]=itrk;
124	ref = track->GetTrackRef(0);
125	esd = track->GetESDinfo()->GetOuterParam();
126	mom = ref ? ref->P(): esd->P();
127	pidx = AliTRDCalPID::GetPartIndex(track->GetPDG());
128	pidx = TMath::Max(pidx, 0);
129
130	//Int_t n = track->GetNumberOfClusters();
131	// where are this tracklets ???
132	//if(ncls0 > ncls1) printf("%3d ESD[%3d] TRD[%3d\|%3d]\n", itrk, ncls0, ncls1, n);
133	if(track->GetNumberOfClustersRefit()){
134	((TProfile*)fContainer->At(pidx))->Fill(mom, 1.);
135	labelsacc[nTRD] = track->GetLabel();
136	nTRD++;
137	continue;
138	}
139
140
141
142	Float_t xmed, xleng;
143	Int_t iref = 1; Bool_t found = kFALSE;
144	while((ref = track->GetTrackRef(iref))){
145	xmed = .5*(ref->LocalX() + track->GetTrackRef(iref-1)->LocalX());
146	xleng= (ref->LocalX() - track->GetTrackRef(iref-1)->LocalX());
147	if(TMath::Abs(xmed - 298.5) < .5 &&
148	TMath::Abs(xleng - 3.7) < .1){
149	found = kTRUE;
150	break;
151	}
152	iref++;
153	}
154	if(!found){
155	nTPC--;
156	// track missing first layer. Maybe interesting for SA.
157	continue;
158	}
159	nselect--;
160	new ((fMissed)[nMiss]) AliTRDtrackInfo(track);
161	nMiss++;
162	}
163	AliDebug(2, Form("%3d Tracks: ESD[%3d] TPC[%3d] TRD[%3d \| %5.2f%%] Off[%d]", (Int_t)AliAnalysisManager::GetAnalysisManager()->GetCurrentEntry(), fTracks->GetEntriesFast(), nTPC, nTRD, nTPC ? 1.E2*nTRD/float(nTPC) : 0., fMissed->GetEntriesFast()));
164
165
166	// Find double tracks
167	Float_t threshold = 10.;
168	AliTrackReference *refMiss = 0x0;
169	AliExternalTrackParam *op = 0x0;
170	AliTRDtrackInfo *tt = 0x0;
171	for(Int_t imiss=0; imiss<nMiss; imiss++){
172	//printf("Searching missing %d ...\n", imiss);
173
174	// get outer param of missed
175	tt = (AliTRDtrackInfo*)fMissed->UncheckedAt(imiss);
176	op = tt->GetESDinfo()->GetOuterParam();
177	Double_t alpha = op->GetAlpha(), cosa = TMath::Cos(alpha), sina = TMath::Sin(alpha);
178
179	Double_t xyz[3], x0, y0, z0, x, y, z, dx, dy, dz, d;
180
181	Bool_t bFOUND = kFALSE;
182	for(Int_t iselect=0; iselect<nselect; iselect++){
183	track = (AliTRDtrackInfo*)fTracks->UncheckedAt(selection[iselect]);
184
185	// check first MC ... if available
186	d = 0;
187	for(Int_t iref=0; iref<track->GetNTrackRefs(); iref++){
188	if(!(ref = track->GetTrackRef(iref))) continue;
189	if((refMiss = tt->GetTrackRef(iref))){
190	dy = ref->LocalY() - refMiss->LocalY();
191	dz = ref->Z() - refMiss->Z();
192	} else {
193	// compare missOP with refTrackRef in LTC
194	x0 = ref->LocalX();
195	op->GetYAt(x0, AliTracker::GetBz(), y0);
196	op->GetZAt(x0, AliTracker::GetBz(), z0);
197	dy = y0 - ref->LocalY();
198	dz = z0 - ref->Z();
199	}
200	d += (dydy + dzdz);
201	}
202	//printf("\td[%d] = %f N[%d]\n", selection[iselect], d, track->GetNTrackRefs());
203	if((track->GetNTrackRefs())){
204	d /= track->GetNTrackRefs();
205	if(d < threshold){
206	//printf("\t\tFound %2d in ref[%3d] : d[%f]\n", imiss, selection[iselect], d/track->GetNTrackRefs());
207	bFOUND = kTRUE; break;
208	}
209	}
210
211	// process outer param ... always available
212	// compare missOP with OP in GTC
213	esd = track->GetESDinfo()->GetOuterParam();
214	esd->GetXYZ(xyz);
215	x0 = esd->GetX();
216	op->GetYAt(x0, AliTracker::GetBz(), y0);
217	op->GetZAt(x0, AliTracker::GetBz(), z0);
218	x = x0cosa - y0sina;
219	y = x0sina + y0cosa;
220	z = z0;
221	dx=xyz[0]-x;
222	dy=xyz[1]-y;
223	dz=xyz[2]-z;
224	d = dxdx+dydy+dz*dz;
225	//printf("\td[%d] = %f op\n", selection[iselect], d);
226	if(d < threshold){
227	//printf("\t\tFound %2d in op[%3d] : d[%f] dx[%5.2f] dy[%5.2f] dz[%5.2f]\n", imiss, selection[iselect], d, dx, dy, dz);
228	bFOUND = kTRUE; break;
229	}
230	}
231	if(bFOUND) nTPC--;
232	else{
233	ref = tt->GetTrackRef(0);
234	mom = ref ? ref->P(): op->P();
235	pidx = AliTRDCalPID::GetPartIndex(tt->GetPDG());
236	pidx = TMath::Max(pidx, 0);
237	((TProfile*)fContainer->At(pidx))->Fill(mom, 0.);
238	AliDebug(2, Form(" NOT bFOUND Id[%d] Mom[%f]\n", tt->GetTrackId(), mom));
239	}
240	}
241
242	AliDebug(2, Form("%3d Tracks: ESD[%3d] TPC[%3d] TRD[%3d \| %5.2f%%] Off[%d]", (Int_t)AliAnalysisManager::GetAnalysisManager()->GetCurrentEntry(), fTracks->GetEntriesFast(), nTPC, nTRD, nTPC ? 1.E2*nTRD/float(nTPC) : 0., fMissed->GetEntriesFast()));
243
244	//fMissed->Delete();
245	// check for double countings
246	Int_t indices[10000]; memset(indices, 0, sizeof(Int_t) * 10000);
247	TMath::Sort(nTRD, labelsacc, indices);
248	if(DebugLevel() > 2){
249	for(Int_t itk = 0; itk < nTRD - 1; itk++)
250	if(labelsacc[indices[itk]] ==labelsacc[indices[itk + 1]]) printf("Double counted MC track: %d\n", labelsacc[indices[itk]]);
251	}
252	PostData(0, fContainer);
253	}
254
255
256	//____________________________________________________________________
257	Bool_t AliTRDefficiency::GetRefFigure(Int_t ifig)
258	{
259	// Steer reference figures
260
261	Bool_t bFIRST = kTRUE;
262	TProfile *h = 0x0;
263	switch(ifig){
264	case 0:
265	h = (TProfile*)fContainer->At(AliPID::kSPECIES);
266	for(Int_t is=0; is<AliPID::kSPECIES; is++){
267	h->Add((TProfile*)fContainer->At(is));
268	}
269	h->SetMarkerColor(kBlack);
270	h->SetLineColor(kBlack);
271	h->GetXaxis()->SetTitle("p [GeV/c]");
272	h->Draw("e1");
273	break;
274	case 1:
275	bFIRST = kTRUE;
276	for(Int_t is=0; is<AliPID::kSPECIES; is++){
277	if(!(h = (TProfile*)fContainer->At(is))) continue;
278	if(bFIRST){
279	h->Draw("e1");
280	h->GetXaxis()->SetTitle("p [GeV/c]");
281	} else h->Draw("same e1");
282	bFIRST = kFALSE;
283	}
284	break;
285	}
286	return kTRUE;
287	}
288
289
290	//____________________________________________________________________
291	Bool_t AliTRDefficiency::PostProcess()
292	{
293	fNRefFigures = HasMCdata() ? 2 : 1;
294	return kTRUE;
295	}