macro comparing exact and reconstructed clusters
[u/mrichter/AliRoot.git] / EMCAL / AliEMCAL.cxx
CommitLineData
2012850d 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/* $Id$ */
17
18//_________________________________________________________________________
19// Base Class for EMCAL description:
20//
21//
22//*-- Author: Yves Schutz (SUBATECH)
23//////////////////////////////////////////////////////////////////////////////
24
25// --- Standard library ---
26#include <strstream.h>
27
28// --- ROOT system ---
29#include "TBranch.h"
30#include "TClonesArray.h"
31#include "TTree.h"
32
33// --- AliRoot header files ---
34
35#include "AliEMCAL.h"
36#include "AliEMCALGeometry.h"
37#include "AliMC.h"
38#include "AliRun.h"
39#include "AliMagF.h"
40
41ClassImp(AliEMCAL)
42
43//____________________________________________________________________________
44AliEMCAL::AliEMCAL():AliDetector()
45{
46 // ctor
47 //We do not create objects, because these pointers will be overwritten during reading from file.
2685bf00 48 fGeom = 0;
2012850d 49 fSDigits = 0 ;
2685bf00 50 fDigits = 0;
2012850d 51}
52//____________________________________________________________________________
53AliEMCAL::AliEMCAL(const char* name, const char* title): AliDetector(name,title)
54{
55 // ctor : title is used to identify the layout
56
57 // gets an instance of the geometry parameters class
bdeb3a81 58
2012850d 59 if (strcmp(GetTitle(),"") != 0 )
60 fGeom = AliEMCALGeometry::GetInstance(GetTitle(), "") ;
61}
62//____________________________________________________________________________
63AliEMCAL::~AliEMCAL()
64{
65 // dtor
66
67}
68
69//____________________________________________________________________________
70void AliEMCAL::CreateMaterials()
71{
72 // Definitions of materials to build EMCAL and associated tracking media.
73 // media number in idtmed are 1599 to 1698.
74
75 // --- Air ---
76 AliMaterial(0, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ;
77
78 // --- Lead ---
79 AliMaterial(1, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ;
80
81 // --- Average properties of the active material ---
82 AliMaterial(2, "EmcalMat$", fGeom->GetAmat(),
83 fGeom->GetZmat(),
84 fGeom->GetDmat(),
85 fGeom->GetRmat(),
86 0) ;
87
88 // DEFINITION OF THE TRACKING MEDIA
89
90 // for EMCAL: idtmed[1599->1698] equivalent to fIdtmed[0->100]
91 Int_t * idtmed = fIdtmed->GetArray() - 1599 ;
92 Int_t isxfld = gAlice->Field()->Integ() ;
93 Float_t sxmgmx = gAlice->Field()->Max() ;
94
95 // Air -> idtmed[1599]
96 AliMedium(0, "Air $", 0, 0,
97 isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
98
99 // The Lead -> idtmed[1600]
100
101 AliMedium(1, "Lead $", 1, 0,
102 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
103
104 // The Average properties of the active material -> idtmed[1601]
105
106 AliMedium(2, "EmcalMat $", 2, 0,
107 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
108
109 // --- Set decent energy thresholds for gamma and electron tracking
110
111 // Tracking threshold for photons and electrons in Lead
112 gMC->Gstpar(idtmed[1600], "CUTGAM",0.5E-4) ;
113 gMC->Gstpar(idtmed[1600], "CUTELE",1.0E-4) ;
114 gMC->Gstpar(idtmed[1601], "CUTGAM",0.5E-4) ;
115 gMC->Gstpar(idtmed[1601], "CUTELE",1.0E-4) ;
116
117 // --- Generate explicitly delta rays in Lead ---
118 gMC->Gstpar(idtmed[1600], "LOSS",3.) ;
119 gMC->Gstpar(idtmed[1600], "DRAY",1.) ;
120 gMC->Gstpar(idtmed[1601], "LOSS",3.) ;
121 gMC->Gstpar(idtmed[1601], "DRAY",1.) ;
122
123}
124//____________________________________________________________________________
125void AliEMCAL::SetTreeAddress()
126{
127
128 TBranch *branch;
129 char branchname[20];
130 sprintf(branchname,"%s",GetName());
131
132 // Branch address for hit tree
133 TTree *treeH = gAlice->TreeH();
134 if (treeH && fHits) {
135 branch = treeH->GetBranch(branchname);
136 if (branch) branch->SetAddress(&fHits);
137 }
138
139 // Branch address for digit tree
140 TTree *treeD = gAlice->TreeD();
141
142 if(fDigits)
143 fDigits->Clear();
144
145 if (treeD && fDigits) {
146 branch = treeD->GetBranch(branchname);
147 if (branch) branch->SetAddress(&fDigits);
148 }
149
150 if(fSDigits)
151 fSDigits->Clear();
152
153 if (gAlice->TreeS() && fSDigits ) {
154 branch = gAlice->TreeS()->GetBranch("EMCAL");
155 if (branch) branch->SetAddress(&fSDigits) ;
156 }
157}
158
159