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 "AliMUONSegmentation.h"
31 #include "AliMUONTriggerSegmentation.h"
32 #include "AliMUONConstants.h"
35 #include "AliMpCathodType.h"
36 #include "AliMpPlaneType.h"
37 #include "AliMpSegmentation.h"
38 #include "AliMpVSegmentation.h"
45 ClassImp(AliMUONResponseTrigger)
52 return static_cast<AliMUON*>(gAlice->GetModule("MUON"));
55 void Global2Local(Int_t detElemId, Double_t xg, Double_t yg, Double_t zg,
56 Double_t& xl, Double_t& yl, Double_t& zl)
58 // ideally should be :
60 // AliMUONGeometry::Global2Local(detElemId,xg,yg,zg,x,y,z);
61 // but while waiting for this geometry singleton, let's go through
64 const AliMUONGeometryTransformer* transformer = muon()->GetGeometryTransformer();
65 transformer->Global2Local(detElemId,xg,yg,zg,xl,yl,zl);
68 AliMUONSegmentation* Segmentation()
70 static AliMUONSegmentation* segmentation = muon()->GetSegmentation();
75 //------------------------------------------------------------------
76 AliMUONResponseTrigger::AliMUONResponseTrigger()
79 /// Default constructor
82 //------------------------------------------------------------------
83 AliMUONResponseTrigger::~AliMUONResponseTrigger()
88 //_____________________________________________________________________________
90 AliMUONResponseTrigger::DisIntegrate(const AliMUONHit& hit, TList& digits)
92 /// Generate 2 digits (one on each cathode) from 1 hit, i.e. no cluster-size
93 /// generation (simplest response case).
97 Float_t xhit = hit.X();
98 Float_t yhit = hit.Y();
99 Float_t zhit = 0; // FIXME : should it be hit.Z() ?
100 Int_t detElemId = hit.DetElemId();
103 Global2Local(detElemId,xhit,yhit,zhit,x,y,z);
105 Float_t tof = hit.Age();
106 Int_t twentyNano(100);
107 if (tof<AliMUONConstants::TriggerTofLimit())
112 for ( Int_t cath = AliMp::kCath0; cath <= AliMp::kCath1; ++cath )
114 const AliMpVSegmentation* seg
115 = AliMpSegmentation::Instance()
116 ->GetMpSegmentation(detElemId,AliMp::GetCathodType(cath));
118 AliMpPad pad = seg->PadByPosition(TVector2(x,y),kFALSE);
119 Int_t ix = pad.GetIndices().GetFirst();
120 Int_t iy = pad.GetIndices().GetSecond();
122 AliDebug(1,Form("xhit,yhit=%e,%e lx,ly,lz=%e,%e,%e ix,iy=%d,%d",
123 xhit,yhit,x,y,z,ix,iy));
125 if ( !pad.IsValid() )
127 AliWarning(Form("hit w/o strip %d-%d xhit,yhit=%e,%e local x,y,z "
128 "%e,%e,%e ix,iy=%d,%d",detElemId,
130 xhit,yhit,x,y,z,ix,iy));
133 AliMUONDigit* d = new AliMUONDigit;
134 d->SetDetElemId(detElemId);
135 /* pc 09/02/06 no need for that anymore : trigger is in local numbering
137 //FIXME: >> the following code to get the ixGlo and iyGlo is a bad hack
138 // because trigger has not yet switched to local numbering of its indices !
139 // We should be able to use directly the (local) ix,iy from the pad !
140 const AliMUONTriggerSegmentationV2* old =
141 dynamic_cast<const AliMUONTriggerSegmentationV2*>
142 (Segmentation()->GetDESegmentation(detElemId,cath));
145 AliFatal("Got a wrong TriggerSegmentation object! Check that!");
149 old->ILoc2IGlo(ix,iy,ixGlo,iyGlo);
150 if ( xhit < 0 ) ixGlo = -ixGlo;
151 // << end of bad hack.
158 d->SetSignal(twentyNano);
159 d->AddPhysicsSignal(d->Signal());
162 // AliDebug(1,Form("Adding digit DE %d Cathode %d (%d,%d) signal %d",
163 // detElemId,cath,ixGlo,iyGlo,twentyNano));
166 // StdoutToAliDebug(1,digits.Print(););
167 // AliDebug(1,Form("Number of digits for detelem %d track %d : %d",
168 // hit.DetElemId(),hit.Track(),digits.GetSize()));