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820b4d9e | 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 | // TO BE CHECKED | |
41 | ||
42 | // default constructor | |
43 | ||
44 | fMFTPlanes = new TClonesArray("AliMFTPlane", fNMaxPlanes); | |
45 | ||
46 | } | |
47 | ||
48 | //==================================================================================================================================================== | |
49 | ||
50 | AliMFTSegmentation::AliMFTSegmentation(const Char_t *nameGeomFile): | |
51 | TObject(), | |
52 | fMFTPlanes(0) | |
53 | { | |
54 | ||
55 | fMFTPlanes = new TClonesArray("AliMFTPlane", fNMaxPlanes); | |
56 | ||
57 | Float_t zCenter, rMin, rMax, pixelSizeX, pixelSizeY, thicknessActive, thicknessSupport, thicknessReadout; | |
58 | Float_t equivalentSilicon, equivalentSiliconBeforeFront, equivalentSiliconBeforeBack; | |
59 | ||
60 | TFile *geomFile = new TFile(nameGeomFile); | |
61 | TNtuple *geomNtuple = (TNtuple*) geomFile->Get("AliMFTGeometry"); | |
62 | ||
63 | geomNtuple -> SetBranchAddress("zCenter", &zCenter); | |
64 | geomNtuple -> SetBranchAddress("rMin", &rMin); | |
65 | geomNtuple -> SetBranchAddress("rMax", &rMax); | |
66 | geomNtuple -> SetBranchAddress("pixelSizeX", &pixelSizeX); | |
67 | geomNtuple -> SetBranchAddress("pixelSizeY", &pixelSizeY); | |
68 | geomNtuple -> SetBranchAddress("thicknessActive", &thicknessActive); | |
69 | geomNtuple -> SetBranchAddress("thicknessSupport", &thicknessSupport); | |
70 | geomNtuple -> SetBranchAddress("thicknessReadout", &thicknessReadout); | |
71 | geomNtuple -> SetBranchAddress("equivalentSilicon", &equivalentSilicon); | |
72 | geomNtuple -> SetBranchAddress("equivalentSiliconBeforeFront", &equivalentSiliconBeforeFront); | |
73 | geomNtuple -> SetBranchAddress("equivalentSiliconBeforeBack", &equivalentSiliconBeforeBack); | |
74 | ||
75 | Int_t nPlanes = geomNtuple->GetEntries(); | |
76 | ||
77 | for (Int_t iPlane=0; iPlane<nPlanes; iPlane++) { | |
78 | ||
79 | // Create new plane | |
80 | ||
81 | printf("Setting segmentation for MFT plane #%02d\n", iPlane); | |
82 | ||
83 | geomNtuple -> GetEntry(iPlane); | |
84 | zCenter = TMath::Abs(zCenter); | |
85 | ||
86 | AliMFTPlane *plane = new AliMFTPlane(Form("MFTPlane_%02d", iPlane), Form("MFTPlane_%02d", iPlane)); | |
87 | plane -> Init(iPlane, zCenter, rMin, rMax, pixelSizeX, pixelSizeY, thicknessActive, thicknessSupport, thicknessReadout); | |
88 | plane -> SetEquivalentSilicon(equivalentSilicon); | |
89 | plane -> SetEquivalentSiliconBeforeFront(equivalentSiliconBeforeFront); | |
90 | plane -> SetEquivalentSiliconBeforeBack(equivalentSiliconBeforeBack); | |
91 | plane -> CreateStructure(); | |
92 | ||
93 | new ((*fMFTPlanes)[fMFTPlanes->GetEntries()]) AliMFTPlane(*plane); | |
94 | ||
95 | } | |
96 | ||
97 | delete geomFile; | |
98 | ||
99 | printf("MFT segmentation set!\n"); | |
100 | ||
101 | } | |
102 | ||
103 | //==================================================================================================================================================== | |
104 | ||
105 | THnSparseC* AliMFTSegmentation::GetDetElem(Int_t detElemID) { | |
106 | ||
107 | // Find det elem | |
108 | ||
109 | Int_t planeNb = detElemID/fNMaxDetElemPerPlane; | |
110 | Int_t detElemNb = detElemID - planeNb*fNMaxDetElemPerPlane; | |
111 | ||
112 | THnSparseC *detElem = GetPlane(planeNb)->GetActiveElement(detElemNb); | |
113 | ||
114 | return detElem; | |
115 | ||
116 | } | |
117 | ||
118 | //==================================================================================================================================================== | |
119 | ||
120 | Bool_t AliMFTSegmentation::Hit2PixelID(Double_t xHit, Double_t yHit, Int_t detElemID, Int_t &xPixel, Int_t &yPixel) { | |
121 | ||
122 | THnSparseC *detElem = GetDetElem(detElemID); | |
123 | ||
124 | if ( xHit<detElem->GetAxis(0)->GetXmin() || | |
125 | xHit>detElem->GetAxis(0)->GetXmax() || | |
126 | yHit<detElem->GetAxis(1)->GetXmin() || | |
127 | yHit>detElem->GetAxis(1)->GetXmax() ) return kFALSE; | |
128 | ||
129 | xPixel = detElem->GetAxis(0)->FindBin(xHit) - 1; | |
130 | yPixel = detElem->GetAxis(1)->FindBin(yHit) - 1; | |
131 | ||
132 | return kTRUE; | |
133 | ||
134 | } | |
135 | ||
136 | //==================================================================================================================================================== | |
137 |