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 ///////////////////////////////////////////////////////////////////////////////
34 #include "AliITSRecPoint.h"
35 #include "AliAlignObj.h"
37 ClassImp(AliITSRecPoint)
39 //_____________________________________________________________
40 AliITSRecPoint::AliITSRecPoint(): AliCluster(),
53 // default constructor
56 //________________________________________________________________________
57 AliITSRecPoint::AliITSRecPoint(Int_t *lab,Float_t *hit, Int_t *info, Bool_t local):
58 AliCluster(AliAlignObj::LayerToVolUID((info[2]+AliAlignObj::kSPD1),lab[3]&0x3FF),hit,0,0,lab),
71 //standard constructor used in AliITSClusterFinderV2
73 if (!local) { // Cluster V2
74 Double_t txyz[3] = {GetX(), GetY(), GetZ()};
75 Double_t lxyz[3] = {0, 0, 0};
76 GetTracking2LocalMatrix()->LocalToMaster(txyz,lxyz);
77 fXloc = lxyz[0]; fZloc = lxyz[2];
94 AliError(Form("Wrong ITS layer %d (0 -> 5)",fLayer));
99 Double_t lxyz[3] = {fXloc, 0, fZloc};
100 Double_t txyz[3] = {0, 0, 0};
101 GetTracking2LocalMatrix()->MasterToLocal(lxyz,txyz);
103 SetX(0.); SetY(txyz[1]); SetZ(txyz[2]);
109 //_______________________________________________________________________
110 AliITSRecPoint::AliITSRecPoint(const AliITSRecPoint& pt):AliCluster(pt),
119 fChargeRatio(pt.fChargeRatio),
121 fDeltaProb(pt.fDeltaProb)
127 //______________________________________________________________________
128 AliITSRecPoint& AliITSRecPoint::operator=(const AliITSRecPoint& source){
129 // Assignment operator
131 this->~AliITSRecPoint();
132 new(this) AliITSRecPoint(source);
137 //----------------------------------------------------------------------
138 void AliITSRecPoint::Print(ostream *os){
139 ////////////////////////////////////////////////////////////////////////
140 // Standard output format for this class.
141 ////////////////////////////////////////////////////////////////////////
149 #if defined __ICC || defined __ECC || defined __xlC__
156 fmt = os->setf(ios::fixed); // set fixed floating point output
157 *os << GetLabel(0) << " " << GetLabel(1) << " " << GetLabel(2) << " ";
158 *os << fXloc << " " << fZloc << " " << fQ << " ";
159 fmt = os->setf(ios::scientific); // set scientific for dEdX.
161 fmt = os->setf(ios::fixed); // every fixed
162 *os << GetSigmaY2() << " " << GetSigmaZ2();
163 os->flags(fmt); // reset back to old formating.
166 //----------------------------------------------------------------------
167 void AliITSRecPoint::Read(istream *is){
168 ////////////////////////////////////////////////////////////////////////
169 // Standard input format for this class.
170 ////////////////////////////////////////////////////////////////////////
175 *is >> lab[0] >> lab[1] >> lab[2] >> hit[0] >> hit[1] >> hit[4];
176 *is >> fdEdX >> hit[2] >> hit[3];
177 Int_t info[3] = {0,0,0};
178 AliITSRecPoint rp(lab,hit,info,kTRUE);
183 //----------------------------------------------------------------------
184 ostream &operator<<(ostream &os,AliITSRecPoint &p){
185 ////////////////////////////////////////////////////////////////////////
186 // Standard output streaming function.
187 ////////////////////////////////////////////////////////////////////////
192 //----------------------------------------------------------------------
193 istream &operator>>(istream &is,AliITSRecPoint &r){
194 ////////////////////////////////////////////////////////////////////////
195 // Standard input streaming function.
196 ////////////////////////////////////////////////////////////////////////
201 //----------------------------------------------------------------------