[u/mrichter/AliRoot.git] / PWG1 / TRD / AliTRDmultiplicity.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.                  *
 **************************************************************************/


////////////////////////////////////////////////////////////////////////////
//                                                                        //
//  TRD multiplicity                                                      //
//                                                                        //
// Task to select true single tracks
// 
// Program flow:
// Part A - task AliTRDmultiplicity (within the framework qaRec):
//   For TRD standalone or TRD&TOF tracks I make a FitRiemanTilt
//   The resulting parameterization is dumped into a DebugStreamer written to a file
// 
// Part B – $ALICE_ROOT/TRD/qaRec/macros/TrackletsinTRD.C[h] (analysis macro):
//   The clusters are read in
//   The above produced file is read in
//   I make a fit through the parameterization of the  FitRiemanTilt -> in order to get a straight line (representing the track)
//   the distance of each cluster with respect to the straight line is calculated
//   If there is no cluster at a distance of 0.6  to 2 with respect to the track, the track is defined as a good track, i.e. clean single track
//                                                                        //
//  Authors: Yvonne C. Pachmayer <pachmay@physi.uni-heidelberg.de>        //
//                                                                        //
////////////////////////////////////////////////////////////////////////////

#include <TObjArray.h>
#include <TH1F.h>
#include <TTreeStream.h>

#include "AliESDtrack.h"
#include "AliExternalTrackParam.h"
#include "AliTRDseedV1.h"
#include "AliTRDtrackV1.h"
#include "AliTRDtrackerV1.h"
#include "AliTrackPointArray.h"

#include "AliTRDmultiplicity.h"
#include "AliTRDgeometry.h"
#include "info/AliTRDtrackInfo.h"

ClassImp(AliTRDmultiplicity)

//____________________________________________________________________
AliTRDmultiplicity::AliTRDmultiplicity()
    :AliTRDrecoTask("Multiplicity", "Barrel Tracking Multiplicity")
  ,fEventCounter(0)
{
  //
  // Default constructor
    //
}

//____________________________________________________________________
AliTRDmultiplicity::~AliTRDmultiplicity()
{
}

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

  OpenFile(0, "RECREATE");

  TH1 *h = 0x0;
  fContainer = new TObjArray();
  for(Int_t is=0; is<AliTRDgeometry::kNsector; is++){
  fContainer->Add(h = new TH1F(Form("h_sector_%i", is), " ", 100,-10,10));
  }
} 

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


  ULong_t status;
  AliTRDtrackInfo     *track = 0x0;
  AliExternalTrackParam *esd = 0x0;
  AliTRDtrackV1 *trackTRD = 0x0;
  Double_t x_anode[AliTRDgeometry::kNlayer] = {300.2, 312.8, 325.4, 338.0, 350.6, 363.2}; // Take the default X0
  Int_t standAlone=1;
  fEventCounter++;


  for(Int_t itrk=0; itrk<fTracks->GetEntriesFast(); itrk++){
    track = (AliTRDtrackInfo*)fTracks->UncheckedAt(itrk);
    if(!track->HasESDtrack()) continue;
    status = track->GetStatus();

    AliTrackPoint points[6];
    Float_t xyz[3];
    memset(xyz, 0, sizeof(Float_t) * 3);
    Float_t trackletX[6];
    Float_t trackletY[6];
    Float_t trackletZ[6];
    for(Int_t a=0;a<6;a++)
    {
        xyz[0] = x_anode[a];
        points[a].SetXYZ(xyz);
        trackletX[a]=-1000;
        trackletY[a]=-1000;
        trackletZ[a]=-1000;
    }
    Int_t detTracklet=600;


    // TRD standalone
    if(((status&AliESDtrack::kTRDout)>0) && !((status&AliESDtrack::kTRDin)>0))
    {
        trackTRD = track->GetTrack();

        if(trackTRD)
        {
            AliTRDseedV1 *tracklet = 0x0;
            Int_t counterTracklet=0;
            for(Int_t itl = 0; itl < AliTRDgeometry::kNlayer; itl++)
            {
                tracklet = trackTRD->GetTracklet(itl);
                if(tracklet)
                {
                    if(tracklet->IsOK())
                    {
                        counterTracklet++;
                        detTracklet=tracklet->GetDetector();
                        //printf("%i %f %f \n",itl,tracklet->GetYfit(0),tracklet->GetZfit(0));
                        trackletX[itl]=tracklet->GetX0();
                        trackletY[itl]=tracklet->GetYfit(0);
                        trackletZ[itl]=tracklet->GetZfit(0);
                    }
                }
            }
            // this cut is needed otherwise the order of tracklets in the fit function is not correct
            if(counterTracklet==AliTRDgeometry::kNlayer) AliTRDtrackerV1::FitRiemanTilt(const_cast<AliTRDtrackV1 *>(trackTRD), 0x0, kTRUE, counterTracklet, points);
            else continue;

            if(DebugLevel()>=1){
              for(Int_t il = 0; il < AliTRDgeometry::kNlayer; il++){
                //printf("---------------------------------------- %i %i %f %f %f \n",counterTracklet,il,points[il].GetX(),points[il].GetY(),points[il].GetZ());
                Double_t pointX=points[il].GetX();
                Double_t pointY=points[il].GetY();
                Double_t pointZ=points[il].GetZ();


                (*DebugStream())   << "TrackletsinTRD"
                    << "standalone=" << standAlone
                    << "eventcounter=" << fEventCounter
                    << "layer="     << il
                    << "dettracklet=" << detTracklet
                    << "xtracklet=" << trackletX[il]
                    << "xtrack="    << pointX
                    << "ytracklet=" << trackletY[il]
                    << "ytrack="    << pointY
                    << "ztracklet=" << trackletZ[il]
                    << "ztrack="    << pointZ
                    << "num_tracklets=" << counterTracklet
                    << "\n";

              }
            }
        }
    } // end TRD standalone


    // TPC cluster selection for cosmic data
    if((track->GetTPCncls())<40) continue;
    // missing TPC propagation
    if(!(status&AliESDtrack::kTPCout)) continue;
    standAlone=0;

    esd = track->GetESDinfo()->GetOuterParam();
    // calculate sector - does not matter if track ends in TPC or TRD - sector number independent
    Double_t alpha;
    alpha=-100;
    Int_t fSector=100;
    if(esd){
        alpha=esd->GetAlpha();
        fSector = (Int_t)((alpha+ TMath::Pi())/(20*TMath::Pi()/180));
        if((fSector>-1) && (fSector<18))
        {
        }
        else
        {
            continue;
        }
    }


    // only these sectors have a TRD detector at the moment
   if(fSector==0||fSector==8||fSector==9||fSector==17)
    {
        trackTRD = track->GetTrack();
        if(!trackTRD) continue;
        AliTRDseedV1 *tracklet = 0x0;
        Int_t counterTracklet=0;


        for(Int_t itl = 0; itl < AliTRDgeometry::kNlayer; itl++){
            tracklet = trackTRD->GetTracklet(itl);
            if(!tracklet || !tracklet->IsOK()) continue;
            counterTracklet++;
            detTracklet=tracklet->GetDetector();
            trackletX[itl]=tracklet->GetX0();
            trackletY[itl]=tracklet->GetYfit(0);
            trackletZ[itl]=tracklet->GetZfit(0);

            /*
            AliTRDcluster *c = 0x0;
            for(Int_t itime = 0; itime < AliTRDseedV1::kNtb; itime++){
                c = tracklet->GetClusters(itime);
                if(!c) continue;
//                Float_t cluster_x = c->GetX();
//                Bool_t isprop;
//                isprop=kFALSE;
//                isprop=AliTracker::PropagateTrackTo(esd,(Double_t)cluster_x,0.105,5,kFALSE);
//                if(isprop)
//                {
//                    Int_t detector = c->GetDetector();
//                    ((TH1F*)fContainer->At(fSector))->Fill((c->GetY())-(esd->GetY()));
//                    if(c->GetY()-esd->GetY()>);
//                    printf("diff: %f\n",c->GetY()-(esd->GetY()));
//                }
            }
            */

        } // loop over tracklets ends

        if(counterTracklet==AliTRDgeometry::kNlayer)
        {
            AliTRDtrackerV1::FitRiemanTilt(const_cast<AliTRDtrackV1 *>(trackTRD), 0x0, kTRUE, counterTracklet, points);
        }
        else continue;

       
        if(DebugLevel()>=1){
          for(Int_t il = 0; il < AliTRDgeometry::kNlayer; il++){
            //printf("---------------------------------------- %i %i %f %f %f \n",counterTracklet,il,points[il].GetX(),points[il].GetY(),points[il].GetZ());
            Double_t pointX=points[il].GetX();
            Double_t pointY=points[il].GetY();
            Double_t pointZ=points[il].GetZ();
            
            (*DebugStream())   << "TrackletsinTRD"
                << "standalone=" << standAlone
                << "eventcounter=" << fEventCounter
                << "layer="     << il
                << "dettracklet=" << detTracklet
                << "xtracklet=" << trackletX[il]
                << "xtrack="    << pointX
                << "ytracklet=" << trackletY[il]
                << "ytrack="    << pointY
                << "ztracklet=" << trackletZ[il]
                << "ztrack="    << pointZ
                << "num_tracklets=" << counterTracklet
                << "\n";
          }
        }

    }
  }

  
  PostData(0, fContainer);
}
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
	17	////////////////////////////////////////////////////////////////////////////
	18	// //
	19	// TRD multiplicity //
	20	// //
	21	// Task to select true single tracks
	22	//
	23	// Program flow:
	24	// Part A - task AliTRDmultiplicity (within the framework qaRec):
	25	// For TRD standalone or TRD&TOF tracks I make a FitRiemanTilt
	26	// The resulting parameterization is dumped into a DebugStreamer written to a file
	27	//
	28	// Part B – $ALICE_ROOT/TRD/qaRec/macros/TrackletsinTRD.C[h] (analysis macro):
	29	// The clusters are read in
	30	// The above produced file is read in
	31	// I make a fit through the parameterization of the FitRiemanTilt -> in order to get a straight line (representing the track)
	32	// the distance of each cluster with respect to the straight line is calculated
	33	// If there is no cluster at a distance of 0.6 to 2 with respect to the track, the track is defined as a good track, i.e. clean single track
	34	// //
	35	// Authors: Yvonne C. Pachmayer <pachmay@physi.uni-heidelberg.de> //
	36	// //
	37	////////////////////////////////////////////////////////////////////////////
	38
	39	#include <TObjArray.h>
	40	#include <TH1F.h>
	41	#include <TTreeStream.h>
	42
	43	#include "AliESDtrack.h"
	44	#include "AliExternalTrackParam.h"
	45	#include "AliTRDseedV1.h"
	46	#include "AliTRDtrackV1.h"
	47	#include "AliTRDtrackerV1.h"
	48	#include "AliTrackPointArray.h"
	49
	50	#include "AliTRDmultiplicity.h"
	51	#include "AliTRDgeometry.h"
	52	#include "info/AliTRDtrackInfo.h"
	53
	54	ClassImp(AliTRDmultiplicity)
	55
	56	//____________________________________________________________________
	57	AliTRDmultiplicity::AliTRDmultiplicity()
	58	:AliTRDrecoTask("Multiplicity", "Barrel Tracking Multiplicity")
	59	,fEventCounter(0)
	60	{
	61	//
	62	// Default constructor
	63	//
	64	}
65
66	//____________________________________________________________________
67	AliTRDmultiplicity::~AliTRDmultiplicity()
68	{
69	}
70
71	//____________________________________________________________________
72	void AliTRDmultiplicity::CreateOutputObjects()
73	{
74	//
75	// Create output objects
76	//
77
78	OpenFile(0, "RECREATE");
79
80	TH1 *h = 0x0;
81	fContainer = new TObjArray();
82	for(Int_t is=0; is<AliTRDgeometry::kNsector; is++){
83	fContainer->Add(h = new TH1F(Form("h_sector_%i", is), " ", 100,-10,10));
84	}
85	}
86
87	//____________________________________________________________________
88	void AliTRDmultiplicity::Exec(Option_t *)
89	{
90	//
91	// Do it
92	//
93
94
95
96	ULong_t status;
97	AliTRDtrackInfo *track = 0x0;
98	AliExternalTrackParam *esd = 0x0;
99	AliTRDtrackV1 *trackTRD = 0x0;
100	Double_t x_anode[AliTRDgeometry::kNlayer] = {300.2, 312.8, 325.4, 338.0, 350.6, 363.2}; // Take the default X0
101	Int_t standAlone=1;
102	fEventCounter++;
103
104
105	for(Int_t itrk=0; itrk<fTracks->GetEntriesFast(); itrk++){
106	track = (AliTRDtrackInfo*)fTracks->UncheckedAt(itrk);
107	if(!track->HasESDtrack()) continue;
108	status = track->GetStatus();
109
110	AliTrackPoint points[6];
111	Float_t xyz[3];
112	memset(xyz, 0, sizeof(Float_t) * 3);
113	Float_t trackletX[6];
114	Float_t trackletY[6];
115	Float_t trackletZ[6];
116	for(Int_t a=0;a<6;a++)
117	{
118	xyz[0] = x_anode[a];
119	points[a].SetXYZ(xyz);
120	trackletX[a]=-1000;
121	trackletY[a]=-1000;
122	trackletZ[a]=-1000;
123	}
124	Int_t detTracklet=600;
125
126
127
128	// TRD standalone
129	if(((status&AliESDtrack::kTRDout)>0) && !((status&AliESDtrack::kTRDin)>0))
130	{
131	trackTRD = track->GetTrack();
132
133	if(trackTRD)
134	{
135	AliTRDseedV1 *tracklet = 0x0;
136	Int_t counterTracklet=0;
137	for(Int_t itl = 0; itl < AliTRDgeometry::kNlayer; itl++)
138	{
139	tracklet = trackTRD->GetTracklet(itl);
140	if(tracklet)
141	{
142	if(tracklet->IsOK())
143	{
144	counterTracklet++;
145	detTracklet=tracklet->GetDetector();
146	//printf("%i %f %f \n",itl,tracklet->GetYfit(0),tracklet->GetZfit(0));
147	trackletX[itl]=tracklet->GetX0();
148	trackletY[itl]=tracklet->GetYfit(0);
149	trackletZ[itl]=tracklet->GetZfit(0);
150	}
151	}
152	}
153	// this cut is needed otherwise the order of tracklets in the fit function is not correct
154	if(counterTracklet==AliTRDgeometry::kNlayer) AliTRDtrackerV1::FitRiemanTilt(const_cast<AliTRDtrackV1 *>(trackTRD), 0x0, kTRUE, counterTracklet, points);
155	else continue;
156
157	if(DebugLevel()>=1){
158	for(Int_t il = 0; il < AliTRDgeometry::kNlayer; il++){
159	//printf("---------------------------------------- %i %i %f %f %f \n",counterTracklet,il,points[il].GetX(),points[il].GetY(),points[il].GetZ());
160	Double_t pointX=points[il].GetX();
161	Double_t pointY=points[il].GetY();
162	Double_t pointZ=points[il].GetZ();
163
164
165	(*DebugStream()) << "TrackletsinTRD"
166	<< "standalone=" << standAlone
167	<< "eventcounter=" << fEventCounter
168	<< "layer=" << il
169	<< "dettracklet=" << detTracklet
170	<< "xtracklet=" << trackletX[il]
171	<< "xtrack=" << pointX
172	<< "ytracklet=" << trackletY[il]
173	<< "ytrack=" << pointY
174	<< "ztracklet=" << trackletZ[il]
175	<< "ztrack=" << pointZ
176	<< "num_tracklets=" << counterTracklet
177	<< "\n";
178
179	}
180	}
181	}
182	} // end TRD standalone
183
184
185
186	// TPC cluster selection for cosmic data
187	if((track->GetTPCncls())<40) continue;
188	// missing TPC propagation
189	if(!(status&AliESDtrack::kTPCout)) continue;
190	standAlone=0;
191
192	esd = track->GetESDinfo()->GetOuterParam();
193	// calculate sector - does not matter if track ends in TPC or TRD - sector number independent
194	Double_t alpha;
195	alpha=-100;
196	Int_t fSector=100;
197	if(esd){
198	alpha=esd->GetAlpha();
199	fSector = (Int_t)((alpha+ TMath::Pi())/(20*TMath::Pi()/180));
200	if((fSector>-1) && (fSector<18))
201	{
202	}
203	else
204	{
205	continue;
206	}
207	}
208
209
210
211	// only these sectors have a TRD detector at the moment
212	if(fSector==0\|\|fSector==8\|\|fSector==9\|\|fSector==17)
213	{
214	trackTRD = track->GetTrack();
215	if(!trackTRD) continue;
216	AliTRDseedV1 *tracklet = 0x0;
217	Int_t counterTracklet=0;
218
219
220	for(Int_t itl = 0; itl < AliTRDgeometry::kNlayer; itl++){
221	tracklet = trackTRD->GetTracklet(itl);
222	if(!tracklet \|\| !tracklet->IsOK()) continue;
223	counterTracklet++;
224	detTracklet=tracklet->GetDetector();
225	trackletX[itl]=tracklet->GetX0();
226	trackletY[itl]=tracklet->GetYfit(0);
227	trackletZ[itl]=tracklet->GetZfit(0);
228
229	/*
230	AliTRDcluster *c = 0x0;
231	for(Int_t itime = 0; itime < AliTRDseedV1::kNtb; itime++){
232	c = tracklet->GetClusters(itime);
233	if(!c) continue;
234	// Float_t cluster_x = c->GetX();
235	// Bool_t isprop;
236	// isprop=kFALSE;
237	// isprop=AliTracker::PropagateTrackTo(esd,(Double_t)cluster_x,0.105,5,kFALSE);
238	// if(isprop)
239	// {
240	// Int_t detector = c->GetDetector();
241	// ((TH1F*)fContainer->At(fSector))->Fill((c->GetY())-(esd->GetY()));
242	// if(c->GetY()-esd->GetY()>);
243	// printf("diff: %f\n",c->GetY()-(esd->GetY()));
244	// }
245	}
246	*/
247
248	} // loop over tracklets ends
249
250	if(counterTracklet==AliTRDgeometry::kNlayer)
251	{
252	AliTRDtrackerV1::FitRiemanTilt(const_cast<AliTRDtrackV1 *>(trackTRD), 0x0, kTRUE, counterTracklet, points);
253	}
254	else continue;
255
256
257
258	if(DebugLevel()>=1){
259	for(Int_t il = 0; il < AliTRDgeometry::kNlayer; il++){
260	//printf("---------------------------------------- %i %i %f %f %f \n",counterTracklet,il,points[il].GetX(),points[il].GetY(),points[il].GetZ());
261	Double_t pointX=points[il].GetX();
262	Double_t pointY=points[il].GetY();
263	Double_t pointZ=points[il].GetZ();
264
265	(*DebugStream()) << "TrackletsinTRD"
266	<< "standalone=" << standAlone
267	<< "eventcounter=" << fEventCounter
268	<< "layer=" << il
269	<< "dettracklet=" << detTracklet
270	<< "xtracklet=" << trackletX[il]
271	<< "xtrack=" << pointX
272	<< "ytracklet=" << trackletY[il]
273	<< "ytrack=" << pointY
274	<< "ztracklet=" << trackletZ[il]
275	<< "ztrack=" << pointZ
276	<< "num_tracklets=" << counterTracklet
277	<< "\n";
278	}
279	}
280
281	}
282	}
283
284
285	PostData(0, fContainer);
286	}
287
288