The present commit corresponds to an important change in the way the
[u/mrichter/AliRoot.git] / TRD / AliTRDtrackletGTU.cxx
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52c19022 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: AliTRDtrackletGTU.cxx 28397 2008-09-02 09:33:00Z cblume $ */
17
18////////////////////////////////////////////////////////////////////////////
19// //
20// GTU tracklet //
21// //
22// Author: J. Klein (Jochen.Klein@cern.ch) //
23// //
24////////////////////////////////////////////////////////////////////////////
25
26#include "TMath.h"
4cc89512 27#include "TClass.h"
52c19022 28
29#include "AliTRDtrackletGTU.h"
30#include "AliTRDtrackletWord.h"
31#include "AliTRDmcmTracklet.h"
4cc89512 32#include "AliTRDtrackletMCM.h"
52c19022 33#include "AliLog.h"
34#include "AliTRDgtuParam.h"
35#include "AliTRDgeometry.h"
36#include "AliTRDpadPlane.h"
37
38ClassImp(AliTRDtrackletGTU)
39
40AliTRDtrackletBase* AliTRDtrackletGTU::fgkDummyTracklet = new AliTRDtrackletWord(0);
41
42AliTRDtrackletGTU::AliTRDtrackletGTU() :
43 AliTRDtrackletBase(),
44 fGtuParam(AliTRDgtuParam::Instance()),
45 fTracklet(fgkDummyTracklet),
46 fSubChannel(0x0),
47 fAssignedZ(kFALSE),
48 fAlpha(0),
49 fYProj(0),
50 fYPrime(0),
51 fIndex(0)
52{
53 // ctor for any tracklet deriving from AliTRDtrackletBase
54
55 fSubChannel = new Int_t[fGtuParam->GetNZChannels()];
56 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
57 fSubChannel[zch] = 0;
58}
59
60AliTRDtrackletGTU::AliTRDtrackletGTU(AliTRDtrackletBase *tracklet) :
61 AliTRDtrackletBase(*tracklet),
62 fGtuParam(AliTRDgtuParam::Instance()),
63 fTracklet(0x0),
64 fSubChannel(0x0),
65 fAssignedZ(kFALSE),
66 fAlpha(0),
67 fYProj(0),
68 fYPrime(0),
69 fIndex(0)
70{
71 // ctor for any tracklet deriving from AliTRDtrackletBase
72
73 fSubChannel = new Int_t[fGtuParam->GetNZChannels()];
74 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
75 fSubChannel[zch] = 0;
76 fTracklet = tracklet;
4cc89512 77 if ( fTracklet->IsA() == TClass::GetClass("AliTRDtrackletMCM")) {
78 AliInfo(Form("label from mcm tracklet: %i", ((AliTRDtrackletMCM*) fTracklet)->GetLabel()));
79 }
52c19022 80}
81
82AliTRDtrackletGTU::AliTRDtrackletGTU(const AliTRDtrackletGTU& tracklet) :
83 AliTRDtrackletBase(tracklet),
84 fGtuParam(AliTRDgtuParam::Instance()),
85 fTracklet(tracklet.fTracklet),
86 fSubChannel(0x0),
87 fAssignedZ(tracklet.fAssignedZ),
88 fAlpha(tracklet.fAlpha),
89 fYProj(tracklet.fYProj),
90 fYPrime(tracklet.fYPrime),
91 fIndex(tracklet.fIndex)
92{
93 // copy ctor
94
95 fSubChannel = new Int_t[fGtuParam->GetNZChannels()];
96 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
97 fSubChannel[zch] = tracklet.fSubChannel[zch];
98}
99
100AliTRDtrackletGTU& AliTRDtrackletGTU::operator=(const AliTRDtrackletGTU &rhs)
101{
102 if (&rhs != this) {
103 fTracklet = rhs.fTracklet;
104 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
105 fSubChannel[zch] = rhs.fSubChannel[zch];
106 fIndex = rhs.fIndex;
107 fYPrime = rhs.fYPrime;
108 fYProj = rhs.fYProj;
109 fAlpha = rhs.fAlpha;
110 fAssignedZ = rhs.fAssignedZ;
111 }
112
113 return *this;
114}
115
116AliTRDtrackletGTU::~AliTRDtrackletGTU()
117{
118 // dtor
119 if (fSubChannel)
120 delete [] fSubChannel;
121}
122
123Int_t AliTRDtrackletGTU::Compare(const TObject *o) const {
124 // sorting w. r. t. Z, Y if no z-channel assigned (as needed in input unit)
125 // otherwise w. r. t. Z, Y_proj
126 // must be changed to Z-channel, Y_proj
127 // will be changed
128
129 if (!o)
130 return 0;
131
132 if (!o->InheritsFrom("AliTRDtrackletGTU")) {
133 AliError("Cannot compare to object not deriving from AliTRDtrackletGTU");
134 return 0;
135 }
136
137 if (!fAssignedZ) {
138 if ( GetZbin() < ((AliTRDtrackletGTU*) o)->GetZbin())
139 return -1;
140 else if (GetZbin() > ((AliTRDtrackletGTU*) o)->GetZbin())
141 return 1;
142 else
143 if (GetYbin() < ((AliTRDtrackletGTU*) o)->GetYbin())
144 return -1;
145 else if (GetYbin() > ((AliTRDtrackletGTU*) o)->GetYbin())
146 return 1;
147 else
148 return 0;
149 }
150 else {
151 // sorting should be according to zsubindex, not to Z !!!
152 // therefore this depends on the zch
153 if (GetZbin() < ((AliTRDtrackletGTU*) o)->GetZbin())
154 return -1;
155 else if (GetZbin() > ((AliTRDtrackletGTU*) o)->GetZbin())
156 return 1;
157 else
158 if (GetYProj() < ((AliTRDtrackletGTU*) o)->GetYProj())
159 return -1;
160 else if (GetYProj() > ((AliTRDtrackletGTU*) o)->GetYProj())
161 return 1;
162 else
163 return 0;
164 }
165}
166
167void AliTRDtrackletGTU::SetSubChannel(Int_t zch, Int_t subch)
168{
169 // set the subchannel in the given z-channel
170 fAssignedZ = kTRUE;
171 fSubChannel[zch] = subch;
172}
173
174Int_t AliTRDtrackletGTU::GetSubChannel(Int_t zch)
175{
176 // get the subchannel in the given z-channel
177 return fSubChannel[zch];
178}
179
4cc89512 180Int_t AliTRDtrackletGTU::GetLabel() const
181{
182 if ( fTracklet->IsA() == TClass::GetClass("AliTRDtrackletMCM"))
183 return ((AliTRDtrackletMCM*) fTracklet)->GetLabel();
184 else
185 return -1;
186}
187
52c19022 188/*
189Float_t AliTRDtrackletGTU::GetPhysX(Int_t layer)
190{
191 // get the x-position (in the local system) assuming the tracklet is in the given layer
192 return fGtuParam->GetGeo()->GetTime0(layer);
193}
194
195Float_t AliTRDtrackletGTU::GetPhysY()
196{
197 //
198 return GetYbin() * 0.0160;
199}
200
201Float_t AliTRDtrackletGTU::GetPhysAlpha()
202{
203 return GetAlpha() * 0.01; // wrong factor!
204}
205
206Float_t AliTRDtrackletGTU::GetPhysZ(Int_t stack, Int_t layer)
207{
208 return fGtuParam->GetGeo()->GetPadPlane(layer, stack)->GetRowPos(GetZbin()); // not the middle of a pad!
209}
210*/