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 **************************************************************************/
20 ///////////////////////////////////////////////////////////////////////////////
22 // Forward Multiplicity Detector //
23 // This class contains the base procedures for the Forward Multiplicity //
28 <img src="picts/AliFMDClass.gif">
31 <font size=+2 color=red>
32 <p>The responsible person for this module is
33 <a href="mailto:Valeri.Kondratiev@cern.ch">Valeri Kondratiev</a>.
40 ///////////////////////////////////////////////////////////////////////////////
49 //_____________________________________________________________________________
50 AliFMD::AliFMD(): AliDetector()
53 // Default constructor for class AliFMD
58 //_____________________________________________________________________________
59 AliFMD::AliFMD(const char *name, const char *title)
60 : AliDetector(name,title)
63 // Standard constructor for Forward Multiplicity Detector
67 // Initialise Hit array
68 fHits = new TClonesArray("AliFMDhit", 405);
73 //_____________________________________________________________________________
74 void AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
79 TClonesArray &lhits = *fHits;
80 new(lhits[fNhits++]) AliFMDhit(fIshunt,track,vol,hits);
83 //_____________________________________________________________________________
84 void AliFMD::BuildGeometry()
87 // Build simple ROOT TNode geometry for event display
90 const int kColorFMD = 7;
92 Top=gAlice->GetGeometry()->GetNode("alice");
94 // FMD define the different volumes
96 new TTUBE("S_FMD1","FMD sensitive volume 1","void",4.5,10.5,3);
98 Node = new TNode("FMD1","FMD1","S_FMD1",0,0,86.5,"");
99 Node->SetLineColor(kColorFMD);
102 new TTUBE("S_FMD2","FMD sensitive volume 2","void",4.5,10.5,3);
104 Node = new TNode("FMD2","FMD2","S_FMD2",0,0,-86.5,"");
105 Node->SetLineColor(kColorFMD);
108 new TTUBE("S_FMD3","FMD sensitive volume 3","void",8,14,3);
110 Node = new TNode("FMD3","FMD3","S_FMD3",0,0,71.2,"");
111 Node->SetLineColor(kColorFMD);
114 new TTUBE("S_FMD4","FMD sensitive volume 4","void",8,14,3);
116 Node = new TNode("FMD4","FMD4","S_FMD4",0,0,-71.2,"");
118 Node->SetLineColor(kColorFMD);
120 new TTUBE("S_FMD5","FMD sensitive volume 5","void",8,17.5,3);
122 Node = new TNode("FMD5","FMD5","S_FMD5",0,0,44,"");
123 Node->SetLineColor(kColorFMD);
126 new TTUBE("S_FMD6","FMD sensitive volume 6","void",8,17.5,3);
128 Node = new TNode("FMD6","FMD6","S_FMD6",0,0,-44,"");
129 Node->SetLineColor(kColorFMD);
132 new TTUBE("S_FMD7","FMD sensitive volume 7","void",4.2,13,3);
134 Node = new TNode("FMD7","FMD7","S_FMD7",0,0,-231,"");
135 Node->SetLineColor(kColorFMD);
139 //_____________________________________________________________________________
140 Int_t AliFMD::DistancetoPrimitive(Int_t , Int_t )
143 // Calculate the distance from the mouse to the FMD on the screen
149 //_____________________________________________________________________________
150 void AliFMD::StepManager()
153 // Called for each step in the FMD
158 TClonesArray &lhits = *fHits;
161 gMC->CurrentVolID(copy);
163 gMC->TrackPosition(p);
164 for(i=0;i<3;++i) hits[i]=p[i];
165 new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
168 //___________________________________________
172 // Initialis the FMD after it has been built
176 for(i=0;i<35;i++) printf("*");
177 printf(" FMD_INIT ");
178 for(i=0;i<35;i++) printf("*");
181 // Here the FMD initialisation code (if any!)
182 for(i=0;i<80;i++) printf("*");
189 //_____________________________________________________________________________
190 AliFMDhit::AliFMDhit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):