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 **************************************************************************/
16 /* $Id: AliTRDtrackletGTU.cxx 28397 2008-09-02 09:33:00Z cblume $ */
18 ////////////////////////////////////////////////////////////////////////////
22 // Author: J. Klein (Jochen.Klein@cern.ch) //
24 ////////////////////////////////////////////////////////////////////////////
29 #include "AliTRDtrackletGTU.h"
30 #include "AliTRDtrackletWord.h"
31 #include "AliTRDtrackletMCM.h"
33 #include "AliTRDgtuParam.h"
34 #include "AliTRDgeometry.h"
35 #include "AliTRDpadPlane.h"
37 ClassImp(AliTRDtrackletGTU)
39 AliTRDtrackletBase* AliTRDtrackletGTU::fgkDummyTracklet = new AliTRDtrackletWord(0);
41 AliTRDtrackletGTU::AliTRDtrackletGTU() :
43 fGtuParam(AliTRDgtuParam::Instance()),
44 fTracklet(fgkDummyTracklet),
46 fMCMtrackletIndex(-1),
53 // ctor for any tracklet deriving from AliTRDtrackletBase
55 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
59 AliTRDtrackletGTU::AliTRDtrackletGTU(AliTRDtrackletBase *tracklet) :
60 AliTRDtrackletBase(*tracklet),
61 fGtuParam(AliTRDgtuParam::Instance()),
62 fTracklet(fgkDummyTracklet),
64 fMCMtrackletIndex(-1),
71 // ctor for any tracklet deriving from AliTRDtrackletBase
73 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
76 if ( fTracklet->IsA() == TClass::GetClass("AliTRDtrackletMCM")) {
77 AliDebug(5,Form("label from mcm tracklet: %i", ((AliTRDtrackletMCM*) fTracklet)->GetLabel()));
81 AliTRDtrackletGTU::AliTRDtrackletGTU(AliESDTrdTracklet *tracklet) :
83 fGtuParam(AliTRDgtuParam::Instance()),
84 fTracklet(fgkDummyTracklet),
85 fTrackletESD(tracklet),
86 fMCMtrackletIndex(-1), // has to be set via SetMCMtrackletIndex() separately
93 // ctor for an AliESDTrdTracklet
95 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
99 AliTRDtrackletGTU::AliTRDtrackletGTU(const AliTRDtrackletGTU& tracklet) :
100 AliTRDtrackletBase(tracklet),
101 fGtuParam(AliTRDgtuParam::Instance()),
102 fTracklet(tracklet.fTracklet),
103 fTrackletESD(tracklet.fTrackletESD),
104 fMCMtrackletIndex(tracklet.fMCMtrackletIndex),
105 fAssignedZ(tracklet.fAssignedZ),
106 fAlpha(tracklet.fAlpha),
107 fYProj(tracklet.fYProj),
108 fYPrime(tracklet.fYPrime),
109 fIndex(tracklet.fIndex)
113 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
114 fSubChannel[zch] = tracklet.fSubChannel[zch];
117 AliTRDtrackletGTU& AliTRDtrackletGTU::operator=(const AliTRDtrackletGTU &rhs)
119 // assignment operator
122 fTracklet = rhs.fTracklet;
123 fTrackletESD = rhs.fTrackletESD;
124 fMCMtrackletIndex = rhs.fMCMtrackletIndex;
125 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
126 fSubChannel[zch] = rhs.fSubChannel[zch];
128 fYPrime = rhs.fYPrime;
131 fAssignedZ = rhs.fAssignedZ;
137 AliTRDtrackletGTU::~AliTRDtrackletGTU()
142 void AliTRDtrackletGTU::SetSubChannel(Int_t zch, Int_t subch)
144 // set the subchannel in the given z-channel
146 fSubChannel[zch] = subch;
149 Int_t AliTRDtrackletGTU::GetSubChannel(Int_t zch) const
151 // get the subchannel in the given z-channel
152 return fSubChannel[zch];
155 Int_t AliTRDtrackletGTU::GetLabel() const
157 // get the MC label for the tracklet, -1 if none
160 return fTrackletESD->GetLabel();
161 else if ( fTracklet->IsA() == TClass::GetClass("AliTRDtrackletMCM"))
162 return ((AliTRDtrackletMCM*) fTracklet)->GetLabel();
168 Float_t AliTRDtrackletGTU::GetPhysX(Int_t layer)
170 // get the x-position (in the local system) assuming the tracklet is in the given layer
171 return fGtuParam->GetGeo()->GetTime0(layer);
174 Float_t AliTRDtrackletGTU::GetPhysY()
177 return GetYbin() * 0.0160;
180 Float_t AliTRDtrackletGTU::GetPhysAlpha()
182 return GetAlpha() * 0.01; // wrong factor!
185 Float_t AliTRDtrackletGTU::GetPhysZ(Int_t stack, Int_t layer)
187 return fGtuParam->GetGeo()->GetPadPlane(layer, stack)->GetRowPos(GetZbin()); // not the middle of a pad!