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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 | ||
820b4d9e | 40 | // default constructor |
41 | ||
820b4d9e | 42 | } |
43 | ||
44 | //==================================================================================================================================================== | |
45 | ||
46 | AliMFTSegmentation::AliMFTSegmentation(const Char_t *nameGeomFile): | |
47 | TObject(), | |
d4643a10 | 48 | fMFTPlanes(new TClonesArray("AliMFTPlane", fNMaxPlanes)) |
820b4d9e | 49 | { |
50 | ||
d4643a10 | 51 | // constructor |
820b4d9e | 52 | |
53 | Float_t zCenter, rMin, rMax, pixelSizeX, pixelSizeY, thicknessActive, thicknessSupport, thicknessReadout; | |
54 | Float_t equivalentSilicon, equivalentSiliconBeforeFront, equivalentSiliconBeforeBack; | |
55 | ||
56 | TFile *geomFile = new TFile(nameGeomFile); | |
57 | TNtuple *geomNtuple = (TNtuple*) geomFile->Get("AliMFTGeometry"); | |
58 | ||
59 | geomNtuple -> SetBranchAddress("zCenter", &zCenter); | |
60 | geomNtuple -> SetBranchAddress("rMin", &rMin); | |
61 | geomNtuple -> SetBranchAddress("rMax", &rMax); | |
62 | geomNtuple -> SetBranchAddress("pixelSizeX", &pixelSizeX); | |
63 | geomNtuple -> SetBranchAddress("pixelSizeY", &pixelSizeY); | |
64 | geomNtuple -> SetBranchAddress("thicknessActive", &thicknessActive); | |
65 | geomNtuple -> SetBranchAddress("thicknessSupport", &thicknessSupport); | |
66 | geomNtuple -> SetBranchAddress("thicknessReadout", &thicknessReadout); | |
67 | geomNtuple -> SetBranchAddress("equivalentSilicon", &equivalentSilicon); | |
68 | geomNtuple -> SetBranchAddress("equivalentSiliconBeforeFront", &equivalentSiliconBeforeFront); | |
69 | geomNtuple -> SetBranchAddress("equivalentSiliconBeforeBack", &equivalentSiliconBeforeBack); | |
70 | ||
71 | Int_t nPlanes = geomNtuple->GetEntries(); | |
72 | ||
73 | for (Int_t iPlane=0; iPlane<nPlanes; iPlane++) { | |
74 | ||
75 | // Create new plane | |
76 | ||
77 | printf("Setting segmentation for MFT plane #%02d\n", iPlane); | |
78 | ||
79 | geomNtuple -> GetEntry(iPlane); | |
80 | zCenter = TMath::Abs(zCenter); | |
81 | ||
82 | AliMFTPlane *plane = new AliMFTPlane(Form("MFTPlane_%02d", iPlane), Form("MFTPlane_%02d", iPlane)); | |
83 | plane -> Init(iPlane, zCenter, rMin, rMax, pixelSizeX, pixelSizeY, thicknessActive, thicknessSupport, thicknessReadout); | |
84 | plane -> SetEquivalentSilicon(equivalentSilicon); | |
85 | plane -> SetEquivalentSiliconBeforeFront(equivalentSiliconBeforeFront); | |
86 | plane -> SetEquivalentSiliconBeforeBack(equivalentSiliconBeforeBack); | |
87 | plane -> CreateStructure(); | |
88 | ||
89 | new ((*fMFTPlanes)[fMFTPlanes->GetEntries()]) AliMFTPlane(*plane); | |
90 | ||
91 | } | |
92 | ||
93 | delete geomFile; | |
94 | ||
95 | printf("MFT segmentation set!\n"); | |
96 | ||
97 | } | |
98 | ||
99 | //==================================================================================================================================================== | |
100 | ||
d4643a10 | 101 | THnSparseC* AliMFTSegmentation::GetDetElem(Int_t detElemID) const { |
820b4d9e | 102 | |
103 | // Find det elem | |
104 | ||
105 | Int_t planeNb = detElemID/fNMaxDetElemPerPlane; | |
106 | Int_t detElemNb = detElemID - planeNb*fNMaxDetElemPerPlane; | |
107 | ||
108 | THnSparseC *detElem = GetPlane(planeNb)->GetActiveElement(detElemNb); | |
109 | ||
110 | return detElem; | |
111 | ||
112 | } | |
113 | ||
114 | //==================================================================================================================================================== | |
115 | ||
116 | Bool_t AliMFTSegmentation::Hit2PixelID(Double_t xHit, Double_t yHit, Int_t detElemID, Int_t &xPixel, Int_t &yPixel) { | |
117 | ||
118 | THnSparseC *detElem = GetDetElem(detElemID); | |
119 | ||
120 | if ( xHit<detElem->GetAxis(0)->GetXmin() || | |
121 | xHit>detElem->GetAxis(0)->GetXmax() || | |
122 | yHit<detElem->GetAxis(1)->GetXmin() || | |
123 | yHit>detElem->GetAxis(1)->GetXmax() ) return kFALSE; | |
124 | ||
125 | xPixel = detElem->GetAxis(0)->FindBin(xHit) - 1; | |
126 | yPixel = detElem->GetAxis(1)->FindBin(yHit) - 1; | |
127 | ||
128 | return kTRUE; | |
129 | ||
130 | } | |
131 | ||
132 | //==================================================================================================================================================== | |
133 |