1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
19 // Reconstructed space point class for set:ITS
20 // Reconstructed points are expressed simultaneously in two different
21 // reference frames, both differing from the global system.
22 // The first is referred to the sensor (see AliITSsegmentation for the
23 // definition) and each point is represented by two coordinates: fXloc and
24 // fZloc. This system in the code is referred to as "local"
25 // The second is used for tracking (V2, SA and MI versions) and the X axis
26 // represents the radial coordinate (this system is, in the bending plane,
27 // a rotated system w.r.t. the global reference system).
28 // Each reaconstructed point is represented by two coordinates: fY and fZ,
29 // inherited from AliCluster. This system in the code is referred to as
31 ///////////////////////////////////////////////////////////////////////////////
33 #include <TGeoMatrix.h>
34 #include "AliITSRecPoint.h"
35 #include "AliAlignObj.h"
37 ClassImp(AliITSRecPoint)
39 //_____________________________________________________________
40 AliITSRecPoint::AliITSRecPoint(): AliCluster(),
54 // default constructor
57 //________________________________________________________________________
58 AliITSRecPoint::AliITSRecPoint(Int_t *lab,Float_t *hit, Int_t *info, Bool_t local):
59 AliCluster(AliGeomManager::LayerToVolUID((info[2]+AliGeomManager::kSPD1),lab[3]&0x3FF),hit,0,0,lab),
73 //standard constructor used in AliITSClusterFinderV2
75 if (!local) { // Cluster V2
76 Double_t txyz[3] = {GetX(), GetY(), GetZ()};
77 Double_t lxyz[3] = {0, 0, 0};
78 GetTracking2LocalMatrix()->LocalToMaster(txyz,lxyz);
79 fXloc = lxyz[0]; fZloc = lxyz[2];
96 AliError(Form("Wrong ITS layer %d (0 -> 5)",fLayer));
101 Double_t lxyz[3] = {fXloc, 0, fZloc};
102 Double_t txyz[3] = {0, 0, 0};
103 GetTracking2LocalMatrix()->MasterToLocal(lxyz,txyz);
105 SetX(0.); SetY(txyz[1]); SetZ(txyz[2]);
111 //_______________________________________________________________________
112 AliITSRecPoint::AliITSRecPoint(const AliITSRecPoint& pt):AliCluster(pt),
121 fChargeRatio(pt.fChargeRatio),
123 fDeltaProb(pt.fDeltaProb),
124 fDriftTime(pt.fDriftTime)
130 //______________________________________________________________________
131 AliITSRecPoint& AliITSRecPoint::operator=(const AliITSRecPoint& source){
132 // Assignment operator
134 this->~AliITSRecPoint();
135 new(this) AliITSRecPoint(source);
140 //----------------------------------------------------------------------
141 void AliITSRecPoint::Print(ostream *os){
142 ////////////////////////////////////////////////////////////////////////
143 // Standard output format for this class.
144 ////////////////////////////////////////////////////////////////////////
152 #if defined __ICC || defined __ECC || defined __xlC__
159 fmt = os->setf(ios::fixed); // set fixed floating point output
160 *os << GetLabel(0) << " " << GetLabel(1) << " " << GetLabel(2) << " ";
161 fmt = os->setf(ios::scientific); // set scientific for dEdX.
162 *os << GetX() <<" " << GetY() << " " << GetZ() << " " ;
163 *os << GetSigmaY2() << " " << GetSigmaZ2() << " " << GetSigmaYZ() << " ";
164 fmt = os->setf(ios::fixed);
165 *os << GetVolumeId() << " "<< Misalign() /*fIsMisaligned*/ << " ";
166 fmt = os->setf(ios::scientific); // set scientific for dEdX.
167 *os << fXloc << " " << fZloc << " " << fdEdX << " ";
168 fmt = os->setf(ios::fixed); // every fixed
169 *os << fIndex <<" " << fQ << " "<<fLayer <<" "<<fNz<<" "<<fNy<<" ";
170 *os << fChargeRatio<<" " << fType << " " << fDeltaProb << " " << fDriftTime;
171 os->flags(fmt); // reset back to old formating.
174 //----------------------------------------------------------------------
175 void AliITSRecPoint::Read(istream *is){
176 ////////////////////////////////////////////////////////////////////////
177 // Standard input format for this class.
178 ////////////////////////////////////////////////////////////////////////
183 *is >> lab[0] >> lab[1] >> lab[2];
184 SetLabel(lab[0],0); SetLabel(lab[1],1); SetLabel(lab[2],2);
185 *is >> hit[0] >> hit[1] >> hit[2] >> hit[3] >> hit[4] >> hit[5];
186 SetX(hit[0]);SetY(hit[1]);SetZ(hit[2]);SetSigmaY2(hit[3]);
187 SetSigmaZ2(hit[4]);//fSigmaYZ=hit[5];
188 *is >> lab[0] >> mis;
189 SetVolumeId(lab[0]);// fIsMisalinged = mis;
190 *is >> fXloc >> fZloc >> fdEdX;
191 *is >> fIndex >> fQ >> fLayer >> fNz >> fNy >> fChargeRatio >> fType;
192 *is >> fDeltaProb >> fDriftTime;
196 //----------------------------------------------------------------------
197 ostream &operator<<(ostream &os,AliITSRecPoint &p){
198 ////////////////////////////////////////////////////////////////////////
199 // Standard output streaming function.
200 ////////////////////////////////////////////////////////////////////////
205 //----------------------------------------------------------------------
206 istream &operator>>(istream &is,AliITSRecPoint &r){
207 ////////////////////////////////////////////////////////////////////////
208 // Standard input streaming function.
209 ////////////////////////////////////////////////////////////////////////
214 //----------------------------------------------------------------------