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 = 0x0;
41 AliTRDtrackletGTU::AliTRDtrackletGTU() :
43 fGtuParam(AliTRDgtuParam::Instance()),
46 fMCMtrackletIndex(-1),
53 // ctor for any tracklet deriving from AliTRDtrackletBase
55 if (!fgkDummyTracklet)
56 fgkDummyTracklet = new AliTRDtrackletWord(0);
57 fTracklet = fgkDummyTracklet;
59 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
63 AliTRDtrackletGTU::AliTRDtrackletGTU(AliTRDtrackletBase *tracklet) :
64 AliTRDtrackletBase(*tracklet),
65 fGtuParam(AliTRDgtuParam::Instance()),
68 fMCMtrackletIndex(-1),
75 // ctor for any tracklet deriving from AliTRDtrackletBase
77 if (!fgkDummyTracklet) fgkDummyTracklet = new AliTRDtrackletWord(0);
78 fTracklet = fgkDummyTracklet;
80 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
83 if ( fTracklet->IsA() == TClass::GetClass("AliTRDtrackletMCM")) {
84 AliDebug(5,Form("label from mcm tracklet: %i", ((AliTRDtrackletMCM*) fTracklet)->GetLabel()));
88 AliTRDtrackletGTU::AliTRDtrackletGTU(AliESDTrdTracklet *tracklet) :
90 fGtuParam(AliTRDgtuParam::Instance()),
92 fTrackletESD(tracklet),
93 fMCMtrackletIndex(-1), // has to be set via SetMCMtrackletIndex() separately
100 // ctor for an AliESDTrdTracklet
102 if (!fgkDummyTracklet) fgkDummyTracklet = new AliTRDtrackletWord(0);
103 fTracklet = fgkDummyTracklet;
105 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
106 fSubChannel[zch] = 0;
109 AliTRDtrackletGTU::AliTRDtrackletGTU(const AliTRDtrackletGTU& tracklet) :
110 AliTRDtrackletBase(tracklet),
111 fGtuParam(AliTRDgtuParam::Instance()),
112 fTracklet(tracklet.fTracklet),
113 fTrackletESD(tracklet.fTrackletESD),
114 fMCMtrackletIndex(tracklet.fMCMtrackletIndex),
115 fAssignedZ(tracklet.fAssignedZ),
116 fAlpha(tracklet.fAlpha),
117 fYProj(tracklet.fYProj),
118 fYPrime(tracklet.fYPrime),
119 fIndex(tracklet.fIndex)
123 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
124 fSubChannel[zch] = tracklet.fSubChannel[zch];
127 AliTRDtrackletGTU& AliTRDtrackletGTU::operator=(const AliTRDtrackletGTU &rhs)
129 // assignment operator
132 fTracklet = rhs.fTracklet;
133 fTrackletESD = rhs.fTrackletESD;
134 fMCMtrackletIndex = rhs.fMCMtrackletIndex;
135 for (Int_t zch = 0; zch < fGtuParam->GetNZChannels(); zch++)
136 fSubChannel[zch] = rhs.fSubChannel[zch];
138 fYPrime = rhs.fYPrime;
141 fAssignedZ = rhs.fAssignedZ;
147 AliTRDtrackletGTU::~AliTRDtrackletGTU()
152 void AliTRDtrackletGTU::SetSubChannel(Int_t zch, Int_t subch)
154 // set the subchannel in the given z-channel
156 fSubChannel[zch] = subch;
159 Int_t AliTRDtrackletGTU::GetSubChannel(Int_t zch) const
161 // get the subchannel in the given z-channel
162 return fSubChannel[zch];
165 Int_t AliTRDtrackletGTU::GetLabel() const
167 // get the MC label for the tracklet, -1 if none
170 return fTrackletESD->GetLabel();
171 else if ( fTracklet->IsA() == TClass::GetClass("AliTRDtrackletMCM"))
172 return ((AliTRDtrackletMCM*) fTracklet)->GetLabel();
178 Float_t AliTRDtrackletGTU::GetPhysX(Int_t layer)
180 // get the x-position (in the local system) assuming the tracklet is in the given layer
181 return fGtuParam->GetGeo()->GetTime0(layer);
184 Float_t AliTRDtrackletGTU::GetPhysY()
187 return GetYbin() * 0.0160;
190 Float_t AliTRDtrackletGTU::GetPhysAlpha()
192 return GetAlpha() * 0.01; // wrong factor!
195 Float_t AliTRDtrackletGTU::GetPhysZ(Int_t stack, Int_t layer)
197 return fGtuParam->GetGeo()->GetPadPlane(layer, stack)->GetRowPos(GetZbin()); // not the middle of a pad!