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 Revision 1.8 2000/10/02 21:28:07 fca
19 Removal of useless dependecies via forward declarations
21 Revision 1.7 2000/01/19 17:16:47 fca
22 Introducing a list of lists of hits -- more hits allowed for detector now
24 Revision 1.6 1999/09/29 09:24:14 fca
25 Introduction of the Copyright and cvs Log
29 ///////////////////////////////////////////////////////////////////////////////
31 // Forward Multiplicity Detector //
32 // This class contains the base procedures for the Forward Multiplicity //
37 <img src="picts/AliFMDClass.gif">
40 <font size=+2 color=red>
41 <p>The responsible person for this module is
42 <a href="mailto:Valeri.Kondratiev@cern.ch">Valeri Kondratiev</a>.
49 ///////////////////////////////////////////////////////////////////////////////
53 #include <TGeometry.h>
54 #include <TLorentzVector.h>
62 //_____________________________________________________________________________
63 AliFMD::AliFMD(): AliDetector()
66 // Default constructor for class AliFMD
71 //_____________________________________________________________________________
72 AliFMD::AliFMD(const char *name, const char *title)
73 : AliDetector(name,title)
76 // Standard constructor for Forward Multiplicity Detector
80 // Initialise Hit array
81 fHits = new TClonesArray("AliFMDhit", 405);
82 gAlice->AddHitList(fHits);
87 //_____________________________________________________________________________
88 void AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
93 TClonesArray &lhits = *fHits;
94 new(lhits[fNhits++]) AliFMDhit(fIshunt,track,vol,hits);
97 //_____________________________________________________________________________
98 void AliFMD::BuildGeometry()
101 // Build simple ROOT TNode geometry for event display
104 const int kColorFMD = 7;
106 Top=gAlice->GetGeometry()->GetNode("alice");
108 // FMD define the different volumes
110 new TTUBE("S_FMD1","FMD sensitive volume 1","void",4.5,10.5,3);
112 Node = new TNode("FMD1","FMD1","S_FMD1",0,0,86.5,"");
113 Node->SetLineColor(kColorFMD);
116 new TTUBE("S_FMD2","FMD sensitive volume 2","void",4.5,10.5,3);
118 Node = new TNode("FMD2","FMD2","S_FMD2",0,0,-86.5,"");
119 Node->SetLineColor(kColorFMD);
122 new TTUBE("S_FMD3","FMD sensitive volume 3","void",8,14,3);
124 Node = new TNode("FMD3","FMD3","S_FMD3",0,0,71.2,"");
125 Node->SetLineColor(kColorFMD);
128 new TTUBE("S_FMD4","FMD sensitive volume 4","void",8,14,3);
130 Node = new TNode("FMD4","FMD4","S_FMD4",0,0,-71.2,"");
132 Node->SetLineColor(kColorFMD);
134 new TTUBE("S_FMD5","FMD sensitive volume 5","void",8,17.5,3);
136 Node = new TNode("FMD5","FMD5","S_FMD5",0,0,44,"");
137 Node->SetLineColor(kColorFMD);
140 new TTUBE("S_FMD6","FMD sensitive volume 6","void",8,17.5,3);
142 Node = new TNode("FMD6","FMD6","S_FMD6",0,0,-44,"");
143 Node->SetLineColor(kColorFMD);
146 new TTUBE("S_FMD7","FMD sensitive volume 7","void",4.2,13,3);
148 Node = new TNode("FMD7","FMD7","S_FMD7",0,0,-231,"");
149 Node->SetLineColor(kColorFMD);
153 //_____________________________________________________________________________
154 Int_t AliFMD::DistancetoPrimitive(Int_t , Int_t )
157 // Calculate the distance from the mouse to the FMD on the screen
163 //_____________________________________________________________________________
164 void AliFMD::StepManager()
167 // Called for each step in the FMD
172 TClonesArray &lhits = *fHits;
175 gMC->CurrentVolID(copy);
177 gMC->TrackPosition(p);
178 for(i=0;i<3;++i) hits[i]=p[i];
179 new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
182 //___________________________________________
186 // Initialis the FMD after it has been built
190 for(i=0;i<35;i++) printf("*");
191 printf(" FMD_INIT ");
192 for(i=0;i<35;i++) printf("*");
195 // Here the FMD initialisation code (if any!)
196 for(i=0;i<80;i++) printf("*");
203 //_____________________________________________________________________________
204 AliFMDhit::AliFMDhit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):