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="picts/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
  28 ClassImp(AliFMD)
  29
  30 //_____________________________________________________________________________
  31 AliFMD::AliFMD(): AliDetector()
  32 {
  33   //
  34   // Default constructor for class AliFMD
  35   //
  36   fIshunt   = 0;
  37 }
  38
  39 //_____________________________________________________________________________
  40 AliFMD::AliFMD(const char *name, const char *title)
  41        : AliDetector(name,title)
  42 {
  43   //
  44   // Standard constructor for Forward Multiplicity Detector
  45   //
  46
  47   //
  48   // Initialise Hit array
  49   fHits   = new TClonesArray("AliFMDhit",  405);
  50
  51   fIshunt     =  0;
  52 }
  53
  54 //_____________________________________________________________________________
  55 void AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
  56 {
  57   //
  58   // Add a FMD hit
  59   //
  60   TClonesArray &lhits = *fHits;
  61   new(lhits[fNhits++]) AliFMDhit(fIshunt,track,vol,hits);
  62 }
  63
  64 //_____________________________________________________________________________
  65 void AliFMD::BuildGeometry()
  66 {
  67   //
  68   // Build simple ROOT TNode geometry for event display
  69   //
  70   TNode *Node, *Top;
  71   const int kColorFMD  = 7;
  72   //
  73   Top=gAlice->GetGeometry()->GetNode("alice");
  74
  75   // FMD define the different volumes
  76
  77   new TTUBE("S_FMD1","FMD sensitive volume 1","void",4.5,10.5,3);
  78   Top->cd();
  79   Node = new TNode("FMD1","FMD1","S_FMD1",0,0,86.5,"");
  80   Node->SetLineColor(kColorFMD);
  81   fNodes->Add(Node);
  82
  83   new TTUBE("S_FMD2","FMD sensitive volume 2","void",4.5,10.5,3);
  84   Top->cd();
  85   Node = new TNode("FMD2","FMD2","S_FMD2",0,0,-86.5,"");
  86   Node->SetLineColor(kColorFMD);
  87   fNodes->Add(Node);
  88
  89   new TTUBE("S_FMD3","FMD sensitive volume 3","void",8,14,3);
  90   Top->cd();
  91   Node = new TNode("FMD3","FMD3","S_FMD3",0,0,71.2,"");
  92   Node->SetLineColor(kColorFMD);
  93   fNodes->Add(Node);
  94
  95   new TTUBE("S_FMD4","FMD sensitive volume 4","void",8,14,3);
  96   Top->cd();
  97   Node = new TNode("FMD4","FMD4","S_FMD4",0,0,-71.2,"");
  98   fNodes->Add(Node);
  99   Node->SetLineColor(kColorFMD);
 100
 101   new TTUBE("S_FMD5","FMD sensitive volume 5","void",8,17.5,3);
 102   Top->cd();
 103   Node = new TNode("FMD5","FMD5","S_FMD5",0,0,44,"");
 104   Node->SetLineColor(kColorFMD);
 105   fNodes->Add(Node);
 106
 107   new TTUBE("S_FMD6","FMD sensitive volume 6","void",8,17.5,3);
 108   Top->cd();
 109   Node = new TNode("FMD6","FMD6","S_FMD6",0,0,-44,"");
 110   Node->SetLineColor(kColorFMD);
 111   fNodes->Add(Node);
 112
 113   new TTUBE("S_FMD7","FMD sensitive volume 7","void",4.2,13,3);
 114   Top->cd();
 115   Node = new TNode("FMD7","FMD7","S_FMD7",0,0,-231,"");
 116   Node->SetLineColor(kColorFMD);
 117   fNodes->Add(Node);
 118 }
 119
 120 //_____________________________________________________________________________
 121 Int_t AliFMD::DistancetoPrimitive(Int_t , Int_t )
 122 {
 123   //
 124   // Calculate the distance from the mouse to the FMD on the screen
 125   // Dummy routine
 126   //
 127   return 9999;
 128 }
 129
 130 //_____________________________________________________________________________
 131 void AliFMD::StepManager()
 132 {
 133   //
 134   // Called for each step in the FMD
 135   //
 136
 137   Float_t       hits[3];
 138   Int_t         i,copy,vol[1];
 139   TClonesArray &lhits = *fHits;
 140   TLorentzVector p;
 141
 142   gMC->CurrentVolID(copy);
 143   vol[0] = copy;
 144   gMC->TrackPosition(p);
 145   for(i=0;i<3;++i) hits[i]=p[i];
 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