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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 | //==================================================================================================================================================== | |
17 | // | |
18 | // Segmentation class for the planes of the ALICE Muon Forward Tracker | |
19 | // | |
20 | // Contact author: antonio.uras@cern.ch | |
21 | // | |
22 | //==================================================================================================================================================== | |
23 | ||
24 | #include "TFile.h" | |
25 | #include "TNtuple.h" | |
26 | #include "TClonesArray.h" | |
27 | #include "TMath.h" | |
28 | #include "AliMFTPlane.h" | |
29 | #include "AliMFTSegmentation.h" | |
30 | ||
31 | ClassImp(AliMFTSegmentation) | |
32 | ||
33 | //==================================================================================================================================================== | |
34 | ||
35 | AliMFTSegmentation::AliMFTSegmentation(): | |
36 | TObject(), | |
37 | fMFTPlanes(0) | |
38 | { | |
39 | ||
40 | // default constructor | |
41 | ||
42 | } | |
43 | ||
44 | //==================================================================================================================================================== | |
45 | ||
46 | AliMFTSegmentation::AliMFTSegmentation(const Char_t *nameGeomFile): | |
47 | TObject(), | |
48 | fMFTPlanes(0x0) | |
49 | { | |
50 | ||
51 | // constructor | |
52 | ||
53 | fMFTPlanes = new TClonesArray("AliMFTPlane", fNMaxPlanes); | |
54 | fMFTPlanes -> SetOwner(kTRUE); | |
55 | Float_t zCenter, rMin, rMax, pixelSizeX, pixelSizeY, thicknessActive, thicknessSupport, thicknessReadout; | |
56 | Float_t equivalentSilicon, equivalentSiliconBeforeFront, equivalentSiliconBeforeBack, hasPixelRectangularPatternAlongY; | |
57 | ||
58 | TFile *geomFile = new TFile(nameGeomFile); | |
59 | TNtuple *geomNtuple = (TNtuple*) geomFile->Get("AliMFTGeometry"); | |
60 | ||
61 | geomNtuple -> SetBranchAddress("zCenter", &zCenter); | |
62 | geomNtuple -> SetBranchAddress("rMin", &rMin); | |
63 | geomNtuple -> SetBranchAddress("rMax", &rMax); | |
64 | geomNtuple -> SetBranchAddress("pixelSizeX", &pixelSizeX); | |
65 | geomNtuple -> SetBranchAddress("pixelSizeY", &pixelSizeY); | |
66 | geomNtuple -> SetBranchAddress("thicknessActive", &thicknessActive); | |
67 | geomNtuple -> SetBranchAddress("thicknessSupport", &thicknessSupport); | |
68 | geomNtuple -> SetBranchAddress("thicknessReadout", &thicknessReadout); | |
69 | geomNtuple -> SetBranchAddress("equivalentSilicon", &equivalentSilicon); | |
70 | geomNtuple -> SetBranchAddress("equivalentSiliconBeforeFront", &equivalentSiliconBeforeFront); | |
71 | geomNtuple -> SetBranchAddress("equivalentSiliconBeforeBack", &equivalentSiliconBeforeBack); | |
72 | if (geomNtuple -> GetBranch("hasPixelRectangularPatternAlongY")) { | |
73 | geomNtuple -> SetBranchAddress("hasPixelRectangularPatternAlongY", &hasPixelRectangularPatternAlongY); | |
74 | } | |
75 | else hasPixelRectangularPatternAlongY = 0.; | |
76 | ||
77 | Int_t nPlanes = geomNtuple->GetEntries(); | |
78 | ||
79 | for (Int_t iPlane=0; iPlane<nPlanes; iPlane++) { | |
80 | ||
81 | // Create new plane | |
82 | ||
83 | AliInfo(Form("Setting segmentation for MFT plane #%02d\n", iPlane)); | |
84 | ||
85 | geomNtuple -> GetEntry(iPlane); | |
86 | zCenter = TMath::Abs(zCenter); | |
87 | ||
88 | AliMFTPlane *plane = new AliMFTPlane(Form("MFTPlane_%02d", iPlane), Form("MFTPlane_%02d", iPlane)); | |
89 | ||
90 | plane -> Init(iPlane, | |
91 | zCenter, | |
92 | rMin, | |
93 | rMax, | |
94 | pixelSizeX, | |
95 | pixelSizeY, | |
96 | thicknessActive, | |
97 | thicknessSupport, | |
98 | thicknessReadout, | |
99 | (hasPixelRectangularPatternAlongY>0.5)); | |
100 | ||
101 | plane -> SetEquivalentSilicon(equivalentSilicon); | |
102 | plane -> SetEquivalentSiliconBeforeFront(equivalentSiliconBeforeFront); | |
103 | plane -> SetEquivalentSiliconBeforeBack(equivalentSiliconBeforeBack); | |
104 | plane -> CreateStructure(); | |
105 | ||
106 | new ((*fMFTPlanes)[fMFTPlanes->GetEntries()]) AliMFTPlane(*plane); | |
107 | delete plane; | |
108 | ||
109 | } | |
110 | ||
111 | delete geomFile; | |
112 | ||
113 | AliInfo("MFT segmentation set!\n"); | |
114 | ||
115 | } | |
116 | ||
117 | //==================================================================================================================================================== | |
118 | ||
119 | AliMFTSegmentation::~AliMFTSegmentation() { | |
120 | ||
121 | if (fMFTPlanes) fMFTPlanes->Delete(); | |
122 | delete fMFTPlanes; | |
123 | ||
124 | } | |
125 | ||
126 | //==================================================================================================================================================== | |
127 | ||
128 | void AliMFTSegmentation::Clear(const Option_t* /*opt*/) { | |
129 | ||
130 | if (fMFTPlanes) fMFTPlanes->Delete(); | |
131 | delete fMFTPlanes; | |
132 | fMFTPlanes = NULL; | |
133 | ||
134 | } | |
135 | ||
136 | //==================================================================================================================================================== | |
137 | ||
138 | THnSparseC* AliMFTSegmentation::GetDetElem(Int_t detElemID) const { | |
139 | ||
140 | // Find det elem | |
141 | ||
142 | Int_t planeNb = detElemID/fNMaxDetElemPerPlane; | |
143 | Int_t detElemNb = detElemID - planeNb*fNMaxDetElemPerPlane; | |
144 | ||
145 | THnSparseC *detElem = GetPlane(planeNb)->GetActiveElement(detElemNb); | |
146 | ||
147 | return detElem; | |
148 | ||
149 | } | |
150 | ||
151 | //==================================================================================================================================================== | |
152 | ||
153 | Bool_t AliMFTSegmentation::Hit2PixelID(Double_t xHit, Double_t yHit, Int_t detElemID, Int_t &xPixel, Int_t &yPixel) { | |
154 | ||
155 | // xPixel and yPixel start from 0 | |
156 | ||
157 | THnSparseC *detElem = GetDetElem(detElemID); | |
158 | ||
159 | if ( xHit<detElem->GetAxis(0)->GetXmin() || | |
160 | xHit>detElem->GetAxis(0)->GetXmax() || | |
161 | yHit<detElem->GetAxis(1)->GetXmin() || | |
162 | yHit>detElem->GetAxis(1)->GetXmax() ) return kFALSE; | |
163 | ||
164 | xPixel = detElem->GetAxis(0)->FindBin(xHit) - 1; | |
165 | yPixel = detElem->GetAxis(1)->FindBin(yHit) - 1; | |
166 | ||
167 | return kTRUE; | |
168 | ||
169 | } | |
170 | ||
171 | //==================================================================================================================================================== | |
172 | ||
173 | Bool_t AliMFTSegmentation::DoesPixelExist(Int_t detElemID, Int_t xPixel, Int_t yPixel) { | |
174 | ||
175 | THnSparseC *detElem = GetDetElem(detElemID); | |
176 | ||
177 | if (xPixel>=0 && xPixel<detElem->GetAxis(0)->GetNbins() && yPixel>=0 && yPixel<detElem->GetAxis(1)->GetNbins()) return kTRUE; | |
178 | else return kFALSE; | |
179 | ||
180 | } | |
181 | ||
182 | //==================================================================================================================================================== | |
183 |