FMD/AliFMD.cxx

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //                                                                           //
   3 //  Forward Multiplicity Detector                                            //
   4 //  This class contains the base procedures for the Forward Multiplicity     //
   5 //  detector                                                                 //
   6 //                                                                           //
   7 //Begin_Html
   8 /*
   9 <img src="gif/AliFMDClass.gif">
  10 </pre>
  11 <br clear=left>
  12 <font size=+2 color=red>
  13 <p>The responsible person for this module is
  14 <a href="mailto:Valeri.Kondratiev@cern.ch">Valeri Kondratiev</a>.
  15 </font>
  16 <pre>
  17 */
  18 //End_Html
  19 //                                                                           //
  20 //                                                                           //
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include <TTUBE.h>
  24 #include <TNode.h>
  25 #include "AliRun.h"
  26 #include "AliFMD.h"
  27 #include "TGeant3.h"
  28
  29 ClassImp(AliFMD)
  30
  31 //_____________________________________________________________________________
  32 AliFMD::AliFMD(): AliDetector()
  33 {
  34   //
  35   // Default constructor for class AliFMD
  36   //
  37   fIshunt   = 0;
  38 }
  39
  40 //_____________________________________________________________________________
  41 AliFMD::AliFMD(const char *name, const char *title)
  42        : AliDetector(name,title)
  43 {
  44   //
  45   // Standard constructor for Forward Multiplicity Detector
  46   //
  47
  48   //
  49   // Initialise Hit array
  50   fHits   = new TClonesArray("AliFMDhit",  405);
  51
  52   fIshunt     =  0;
  53 }
  54
  55 //_____________________________________________________________________________
  56 void AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
  57 {
  58   //
  59   // Add a FMD hit
  60   //
  61   TClonesArray &lhits = *fHits;
  62   new(lhits[fNhits++]) AliFMDhit(fIshunt,track,vol,hits);
  63 }
  64
  65 //_____________________________________________________________________________
  66 void AliFMD::BuildGeometry()
  67 {
  68   //
  69   // Build simple ROOT TNode geometry for event display
  70   //
  71   TNode *Node, *Top;
  72   const int kColorFMD  = 7;
  73   //
  74   Top=gAlice->GetGeometry()->GetNode("alice");
  75
  76   // FMD define the different volumes
  77
  78   new TTUBE("S_FMD1","FMD sensitive volume 1","void",4.5,10.5,3);
  79   Top->cd();
  80   Node = new TNode("FMD1","FMD1","S_FMD1",0,0,86.5,"");
  81   Node->SetLineColor(kColorFMD);
  82   fNodes->Add(Node);
  83
  84   new TTUBE("S_FMD2","FMD sensitive volume 2","void",4.5,10.5,3);
  85   Top->cd();
  86   Node = new TNode("FMD2","FMD2","S_FMD2",0,0,-86.5,"");
  87   Node->SetLineColor(kColorFMD);
  88   fNodes->Add(Node);
  89
  90   new TTUBE("S_FMD3","FMD sensitive volume 3","void",8,14,3);
  91   Top->cd();
  92   Node = new TNode("FMD3","FMD3","S_FMD3",0,0,71.2,"");
  93   Node->SetLineColor(kColorFMD);
  94   fNodes->Add(Node);
  95
  96   new TTUBE("S_FMD4","FMD sensitive volume 4","void",8,14,3);
  97   Top->cd();
  98   Node = new TNode("FMD4","FMD4","S_FMD4",0,0,-71.2,"");
  99   fNodes->Add(Node);
 100   Node->SetLineColor(kColorFMD);
 101
 102   new TTUBE("S_FMD5","FMD sensitive volume 5","void",8,17.5,3);
 103   Top->cd();
 104   Node = new TNode("FMD5","FMD5","S_FMD5",0,0,44,"");
 105   Node->SetLineColor(kColorFMD);
 106   fNodes->Add(Node);
 107
 108   new TTUBE("S_FMD6","FMD sensitive volume 6","void",8,17.5,3);
 109   Top->cd();
 110   Node = new TNode("FMD6","FMD6","S_FMD6",0,0,-44,"");
 111   Node->SetLineColor(kColorFMD);
 112   fNodes->Add(Node);
 113
 114   new TTUBE("S_FMD7","FMD sensitive volume 7","void",4.2,13,3);
 115   Top->cd();
 116   Node = new TNode("FMD7","FMD7","S_FMD7",0,0,-231,"");
 117   Node->SetLineColor(kColorFMD);
 118   fNodes->Add(Node);
 119 }
 120
 121 //_____________________________________________________________________________
 122 Int_t AliFMD::DistancetoPrimitive(Int_t , Int_t )
 123 {
 124   //
 125   // Calculate the distance from the mouse to the FMD on the screen
 126   // Dummy routine
 127   //
 128   return 9999;
 129 }
 130
 131 //_____________________________________________________________________________
 132 void AliFMD::StepManager()
 133 {
 134   //
 135   // Called for each step in the FMD
 136   //
 137
 138   Float_t       hits[3];
 139   Int_t         copy,vol[1];
 140   TClonesArray &lhits = *fHits;
 141   AliMC* pMC=AliMC::GetMC();
 142
 143   pMC->CurrentVol(0, copy);
 144   vol[0] = copy;
 145   pMC->TrackPosition(hits);
 146   new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
 147 }
 148
 149 //___________________________________________
 150 void AliFMD::Init()
 151 {
 152   //
 153   // Initialis the FMD after it has been built
 154   Int_t i;
 155   //
 156   printf("\n");
 157   for(i=0;i<35;i++) printf("*");
 158   printf(" FMD_INIT ");
 159   for(i=0;i<35;i++) printf("*");
 160   printf("\n");
 161   //
 162   // Here the FMD initialisation code (if any!)
 163   for(i=0;i<80;i++) printf("*");
 164   printf("\n");
 165 }
 166
 167
 168 ClassImp(AliFMDhit)
 169
 170 //_____________________________________________________________________________
 171 AliFMDhit::AliFMDhit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
 172   AliHit(shunt, track)
 173 {
 174   //
 175   // Add a FMD hit
 176   //
 177   fVolume = vol[0];
 178   fX=hits[0];
 179   fY=hits[1];
 180   fZ=hits[2];
 181 }
 182