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 // -------------------------------
19 // Class AliMUONResponseTrigger
20 // -------------------------------
25 #include "AliMUONResponseTrigger.h"
27 #include "AliMUONDigit.h"
28 #include "AliMUONGeometryTransformer.h"
29 #include "AliMUONHit.h"
30 #include "AliMUONConstants.h"
33 #include "AliMpCathodType.h"
34 #include "AliMpPlaneType.h"
35 #include "AliMpSegmentation.h"
36 #include "AliMpVSegmentation.h"
43 ClassImp(AliMUONResponseTrigger)
50 return static_cast<AliMUON*>(gAlice->GetModule("MUON"));
53 void Global2Local(Int_t detElemId, Double_t xg, Double_t yg, Double_t zg,
54 Double_t& xl, Double_t& yl, Double_t& zl)
56 // ideally should be :
58 // AliMUONGeometry::Global2Local(detElemId,xg,yg,zg,x,y,z);
59 // but while waiting for this geometry singleton, let's go through
62 const AliMUONGeometryTransformer* transformer = muon()->GetGeometryTransformer();
63 transformer->Global2Local(detElemId,xg,yg,zg,xl,yl,zl);
67 //------------------------------------------------------------------
68 AliMUONResponseTrigger::AliMUONResponseTrigger()
71 /// Default constructor
74 //------------------------------------------------------------------
75 AliMUONResponseTrigger::~AliMUONResponseTrigger()
80 //_____________________________________________________________________________
82 AliMUONResponseTrigger::DisIntegrate(const AliMUONHit& hit, TList& digits)
84 /// Generate 2 digits (one on each cathode) from 1 hit, i.e. no cluster-size
85 /// generation (simplest response case).
89 Float_t xhit = hit.X();
90 Float_t yhit = hit.Y();
91 Float_t zhit = 0; // FIXME : should it be hit.Z() ?
92 Int_t detElemId = hit.DetElemId();
95 Global2Local(detElemId,xhit,yhit,zhit,x,y,z);
97 Float_t tof = hit.Age();
98 Int_t twentyNano(100);
99 if (tof<AliMUONConstants::TriggerTofLimit())
104 for ( Int_t cath = AliMp::kCath0; cath <= AliMp::kCath1; ++cath )
106 const AliMpVSegmentation* seg
107 = AliMpSegmentation::Instance()
108 ->GetMpSegmentation(detElemId,AliMp::GetCathodType(cath));
110 AliMpPad pad = seg->PadByPosition(TVector2(x,y),kFALSE);
111 Int_t ix = pad.GetIndices().GetFirst();
112 Int_t iy = pad.GetIndices().GetSecond();
114 AliDebug(1,Form("xhit,yhit=%e,%e lx,ly,lz=%e,%e,%e ix,iy=%d,%d",
115 xhit,yhit,x,y,z,ix,iy));
117 if ( !pad.IsValid() )
119 AliWarning(Form("hit w/o strip %d-%d xhit,yhit=%e,%e local x,y,z "
120 "%e,%e,%e ix,iy=%d,%d",detElemId,
122 xhit,yhit,x,y,z,ix,iy));
125 AliMUONDigit* d = new AliMUONDigit(detElemId,pad.GetLocation(0).GetFirst(),
126 pad.GetLocation(0).GetSecond(),cath);
129 //FIXME : a trigger digit can have several locations.
130 //this is not currently supported by the digit class. Change that or not ?
131 d->SetCharge(twentyNano);