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 "AliMUONTriggerSegmentationV2.h"
32 #include "AliMUONConstants.h"
35 #include "AliMpPlaneType.h"
36 #include "AliMpSegmentation.h"
37 #include "AliMpVSegmentation.h"
44 ClassImp(AliMUONResponseTrigger)
51 return static_cast<AliMUON*>(gAlice->GetModule("MUON"));
54 void Global2Local(Int_t detElemId, Double_t xg, Double_t yg, Double_t zg,
55 Double_t& xl, Double_t& yl, Double_t& zl)
57 // ideally should be :
59 // AliMUONGeometry::Global2Local(detElemId,xg,yg,zg,x,y,z);
60 // but while waiting for this geometry singleton, let's go through
63 const AliMUONGeometryTransformer* transformer = muon()->GetGeometryTransformer();
64 transformer->Global2Local(detElemId,xg,yg,zg,xl,yl,zl);
67 AliMUONSegmentation* Segmentation()
69 static AliMUONSegmentation* segmentation = muon()->GetSegmentation();
74 //------------------------------------------------------------------
75 AliMUONResponseTrigger::AliMUONResponseTrigger()
78 /// Default constructor
81 //------------------------------------------------------------------
82 AliMUONResponseTrigger::~AliMUONResponseTrigger()
87 //_____________________________________________________________________________
89 AliMUONResponseTrigger::DisIntegrate(const AliMUONHit& hit, TList& digits)
91 /// Generate 2 digits (one on each cathode) from 1 hit, i.e. no cluster-size
92 /// generation (simplest response case).
96 Float_t xhit = hit.X();
97 Float_t yhit = hit.Y();
98 Float_t zhit = 0; // FIXME : should it be hit.Z() ?
99 Int_t detElemId = hit.DetElemId();
102 Global2Local(detElemId,xhit,yhit,zhit,x,y,z);
104 Float_t tof = hit.Age();
105 Int_t twentyNano(100);
106 if (tof<AliMUONConstants::TriggerTofLimit())
111 for ( Int_t cath = 0; cath < 2; ++cath )
113 const AliMpVSegmentation* seg
114 = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,cath);
116 AliMpPad pad = seg->PadByPosition(TVector2(x,y),kFALSE);
117 Int_t ix = pad.GetIndices().GetFirst();
118 Int_t iy = pad.GetIndices().GetSecond();
120 AliDebug(1,Form("xhit,yhit=%e,%e lx,ly,lz=%e,%e,%e ix,iy=%d,%d",
121 xhit,yhit,x,y,z,ix,iy));
123 if ( !pad.IsValid() )
125 AliWarning(Form("hit w/o strip %d-%d xhit,yhit=%e,%e local x,y,z "
126 "%e,%e,%e ix,iy=%d,%d",detElemId,
128 xhit,yhit,x,y,z,ix,iy));
131 AliMUONDigit* d = new AliMUONDigit;
132 d->SetDetElemId(detElemId);
133 /* pc 09/02/06 no need for that anymore : trigger is in local numbering
135 //FIXME: >> the following code to get the ixGlo and iyGlo is a bad hack
136 // because trigger has not yet switched to local numbering of its indices !
137 // We should be able to use directly the (local) ix,iy from the pad !
138 const AliMUONTriggerSegmentationV2* old =
139 dynamic_cast<const AliMUONTriggerSegmentationV2*>
140 (Segmentation()->GetDESegmentation(detElemId,cath));
143 AliFatal("Got a wrong TriggerSegmentation object! Check that!");
147 old->ILoc2IGlo(ix,iy,ixGlo,iyGlo);
148 if ( xhit < 0 ) ixGlo = -ixGlo;
149 // << end of bad hack.
156 d->SetSignal(twentyNano);
157 d->AddPhysicsSignal(d->Signal());
160 // AliDebug(1,Form("Adding digit DE %d Cathode %d (%d,%d) signal %d",
161 // detElemId,cath,ixGlo,iyGlo,twentyNano));
164 // StdoutToAliDebug(1,digits.Print(););
165 // AliDebug(1,Form("Number of digits for detelem %d track %d : %d",
166 // hit.DetElemId(),hit.Track(),digits.GetSize()));