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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 | /* $Id$ */ | |
17 | ||
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 | |
30 | // "trackingV2". | |
31 | /////////////////////////////////////////////////////////////////////////////// | |
32 | ||
33 | #include <TGeoMatrix.h> | |
34 | #include "AliITSRecPoint.h" | |
35 | #include "AliAlignObj.h" | |
36 | ||
37 | ClassImp(AliITSRecPoint) | |
38 | ||
39 | //_____________________________________________________________ | |
40 | AliITSRecPoint::AliITSRecPoint(): AliCluster(), | |
41 | fXloc(0), | |
42 | fZloc(0), | |
43 | fdEdX(0), | |
44 | fIndex(0), | |
45 | fQ(0), | |
46 | fLayer(0), | |
47 | fNz(0), | |
48 | fNy(0), | |
49 | fChargeRatio(0), | |
50 | fType(0), | |
51 | fDeltaProb(0), | |
52 | fDriftTime(0.) | |
53 | { | |
54 | // default constructor | |
55 | } | |
56 | ||
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), | |
60 | fXloc(0), | |
61 | fZloc(0), | |
62 | fdEdX(0), | |
63 | fIndex(lab[3]), | |
64 | fQ(hit[4]), | |
65 | fLayer(info[2]), | |
66 | fNz(info[1]), | |
67 | fNy(info[0]), | |
68 | fChargeRatio(0), | |
69 | fType(0), | |
70 | fDeltaProb(0), | |
71 | fDriftTime(0.) | |
72 | { | |
73 | //standard constructor used in AliITSClusterFinderV2 | |
74 | ||
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]; | |
80 | if(fLayer==5) hit[5]=-hit[5]; | |
81 | if( (fLayer==4) || (fLayer==5) ) SetSigmaYZ(hit[5]); | |
82 | } | |
83 | else { | |
84 | switch (fLayer) { | |
85 | case 0: | |
86 | case 1: | |
87 | fdEdX = 0; | |
88 | break; | |
89 | case 2: | |
90 | case 3: | |
91 | fdEdX=fQ*1e-6; | |
92 | break; | |
93 | case 4: | |
94 | fdEdX=fQ*2.16; | |
95 | SetSigmaYZ(hit[5]); | |
96 | case 5: | |
97 | fdEdX=fQ*2.16; | |
98 | hit[5]=-hit[5]; | |
99 | SetSigmaYZ(hit[5]); | |
100 | break; | |
101 | default: | |
102 | AliError(Form("Wrong ITS layer %d (0 -> 5)",fLayer)); | |
103 | break; | |
104 | } | |
105 | fXloc = hit[0]; | |
106 | fZloc = hit[1]; | |
107 | Double_t lxyz[3] = {fXloc, 0, fZloc}; | |
108 | Double_t txyz[3] = {0, 0, 0}; | |
109 | GetTracking2LocalMatrix()->MasterToLocal(lxyz,txyz); | |
110 | ||
111 | SetX(0.); SetY(txyz[1]); SetZ(txyz[2]); | |
112 | ||
113 | } | |
114 | ||
115 | } | |
116 | ||
117 | //_______________________________________________________________________ | |
118 | AliITSRecPoint::AliITSRecPoint(const AliITSRecPoint& pt):AliCluster(pt), | |
119 | fXloc(pt.fXloc), | |
120 | fZloc(pt.fZloc), | |
121 | fdEdX(pt.fdEdX), | |
122 | fIndex(pt.fIndex), | |
123 | fQ(pt.fQ), | |
124 | fLayer(pt.fLayer), | |
125 | fNz(pt.fNz), | |
126 | fNy(pt.fNy), | |
127 | fChargeRatio(pt.fChargeRatio), | |
128 | fType(pt.fType), | |
129 | fDeltaProb(pt.fDeltaProb), | |
130 | fDriftTime(pt.fDriftTime) | |
131 | { | |
132 | //Copy constructor | |
133 | ||
134 | } | |
135 | ||
136 | //______________________________________________________________________ | |
137 | AliITSRecPoint& AliITSRecPoint::operator=(const AliITSRecPoint& source){ | |
138 | // Assignment operator | |
139 | ||
140 | this->~AliITSRecPoint(); | |
141 | new(this) AliITSRecPoint(source); | |
142 | return *this; | |
143 | ||
144 | } | |
145 | ||
146 | //---------------------------------------------------------------------- | |
147 | void AliITSRecPoint::Print(ostream *os){ | |
148 | //////////////////////////////////////////////////////////////////////// | |
149 | // Standard output format for this class. | |
150 | //////////////////////////////////////////////////////////////////////// | |
151 | #if defined __GNUC__ | |
152 | #if __GNUC__ > 2 | |
153 | ios::fmtflags fmt; | |
154 | #else | |
155 | Int_t fmt; | |
156 | #endif | |
157 | #else | |
158 | #if defined __ICC || defined __ECC || defined __xlC__ | |
159 | ios::fmtflags fmt; | |
160 | #else | |
161 | Int_t fmt; | |
162 | #endif | |
163 | #endif | |
164 | ||
165 | fmt = os->setf(ios::fixed); // set fixed floating point output | |
166 | *os << GetLabel(0) << " " << GetLabel(1) << " " << GetLabel(2) << " "; | |
167 | fmt = os->setf(ios::scientific); // set scientific for dEdX. | |
168 | *os << GetX() <<" " << GetY() << " " << GetZ() << " " ; | |
169 | *os << GetSigmaY2() << " " << GetSigmaZ2() << " " << GetSigmaYZ() << " "; | |
170 | fmt = os->setf(ios::fixed); | |
171 | *os << GetVolumeId() << " "<< Misalign() /*fIsMisaligned*/ << " "; | |
172 | fmt = os->setf(ios::scientific); // set scientific for dEdX. | |
173 | *os << fXloc << " " << fZloc << " " << fdEdX << " "; | |
174 | fmt = os->setf(ios::fixed); // every fixed | |
175 | *os << fIndex <<" " << fQ << " "<<fLayer <<" "<<fNz<<" "<<fNy<<" "; | |
176 | *os << fChargeRatio<<" " << fType << " " << fDeltaProb << " " << fDriftTime; | |
177 | os->flags(fmt); // reset back to old formating. | |
178 | return; | |
179 | } | |
180 | //---------------------------------------------------------------------- | |
181 | void AliITSRecPoint::Read(istream *is){ | |
182 | //////////////////////////////////////////////////////////////////////// | |
183 | // Standard input format for this class. | |
184 | //////////////////////////////////////////////////////////////////////// | |
185 | Bool_t mis; | |
186 | Int_t lab[4]; | |
187 | Float_t hit[6]; | |
188 | lab[3] = 0; // ?? | |
189 | *is >> lab[0] >> lab[1] >> lab[2]; | |
190 | SetLabel(lab[0],0); SetLabel(lab[1],1); SetLabel(lab[2],2); | |
191 | *is >> hit[0] >> hit[1] >> hit[2] >> hit[3] >> hit[4] >> hit[5]; | |
192 | SetX(hit[0]);SetY(hit[1]);SetZ(hit[2]);SetSigmaY2(hit[3]); | |
193 | SetSigmaZ2(hit[4]);//fSigmaYZ=hit[5]; | |
194 | *is >> lab[0] >> mis; | |
195 | SetVolumeId(lab[0]);// fIsMisalinged = mis; | |
196 | *is >> fXloc >> fZloc >> fdEdX; | |
197 | *is >> fIndex >> fQ >> fLayer >> fNz >> fNy >> fChargeRatio >> fType; | |
198 | *is >> fDeltaProb >> fDriftTime; | |
199 | ||
200 | return; | |
201 | } | |
202 | //---------------------------------------------------------------------- | |
203 | ostream &operator<<(ostream &os,AliITSRecPoint &p){ | |
204 | //////////////////////////////////////////////////////////////////////// | |
205 | // Standard output streaming function. | |
206 | //////////////////////////////////////////////////////////////////////// | |
207 | ||
208 | p.Print(&os); | |
209 | return os; | |
210 | } | |
211 | //---------------------------------------------------------------------- | |
212 | istream &operator>>(istream &is,AliITSRecPoint &r){ | |
213 | //////////////////////////////////////////////////////////////////////// | |
214 | // Standard input streaming function. | |
215 | //////////////////////////////////////////////////////////////////////// | |
216 | ||
217 | r.Read(&is); | |
218 | return is; | |
219 | } | |
220 | //---------------------------------------------------------------------- |