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d02cfd55 | 1 | /************************************************************************** |
2 | * Copyright(c) 2007-2010, 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 | // This class generates misalignment for TPC. In particular it defines | |
19 | // the misalignment in the three canonical scenarios: "ideal", "residual" | |
20 | // and "full". | |
21 | // It is meant to be run standalone or from the steering macro | |
22 | // $ALICE_ROOT/macros/MakeAlignmentObjs.C | |
23 | // looping on the detectors. | |
24 | // | |
25 | //======================================================================== | |
26 | ||
27 | #include "AliTPCMisAligner.h" | |
28 | #include "AliGeomManager.h" | |
29 | #include "TClonesArray.h" | |
30 | #include "TGeoManager.h" | |
31 | #include "TRandom.h" | |
32 | #include "AliAlignObjParams.h" | |
33 | #include "AliLog.h" | |
34 | ||
35 | ClassImp(AliTPCMisAligner) | |
36 | ||
37 | //_______________________________________________________________________________________ | |
38 | AliTPCMisAligner::AliTPCMisAligner() : AliMisAligner() | |
39 | { | |
40 | // | |
41 | // dummy constructor | |
42 | // | |
43 | } | |
44 | ||
45 | //_______________________________________________________________________________________ | |
46 | TClonesArray* AliTPCMisAligner::MakeAlObjsArray() { | |
47 | // builds and returns the array of alignment objects | |
48 | // according to the spcified misalignment scenario | |
49 | // ("ideal", "residual" or "full"). | |
50 | // | |
51 | if(!AliGeomManager::GetGeometry()) | |
52 | { | |
53 | AliError("No geometry loaded into AliGeomManager! Returning null pointer!"); | |
54 | return 0; | |
55 | } | |
56 | ||
57 | TClonesArray *array = new TClonesArray("AliAlignObjParams",73); | |
58 | TClonesArray &alobj = *array; | |
59 | ||
60 | gRandom->SetSeed(4357); | |
61 | Int_t j = 0; | |
62 | // misalignment of the whole TPC according to survey | |
63 | Double_t dx=-0.159, dy=-0.05, dz=0.034, dpsi=-0.00183, dtheta=0.01835, dphi=0.02865; | |
64 | new(alobj[j++]) AliAlignObjParams("ALIC_1/TPC_M_1", 0, dx, dy, dz, dpsi, dtheta, dphi, kTRUE); | |
65 | AliAlignObjParams* alObjTPC = (AliAlignObjParams*) array->UncheckedAt(0); | |
66 | alObjTPC->ApplyToGeometry(); | |
67 | ||
68 | if(TString(GetMisalType())=="ideal") | |
69 | { | |
70 | ||
71 | dx=0., dy=0., dz=0., dpsi=0., dtheta=0., dphi=0.; | |
72 | for (Int_t iLayer = AliGeomManager::kTPC1; iLayer <= AliGeomManager::kTPC2; iLayer++) { | |
73 | for (Int_t iModule = 0; iModule < AliGeomManager::LayerSize(iLayer); iModule++) { | |
74 | ||
75 | UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,iModule); | |
76 | const char *symname = AliGeomManager::SymName(volid); | |
77 | new(alobj[j++]) AliAlignObjParams(symname, volid, dx, dy, dz, dpsi, dtheta, dphi, kTRUE); | |
78 | } | |
79 | } | |
80 | ||
81 | }else if(TString(GetMisalType())=="residual" || TString(GetMisalType())=="full"){ | |
82 | // sigma translation = 0.1 mm | |
83 | // sigma rotation = 0.1 mrad | |
84 | // RS = local | |
85 | ||
86 | Double_t sigmatr=0.01; | |
87 | Double_t sigmarot = 0.006; | |
88 | ||
89 | for (Int_t iLayer = AliGeomManager::kTPC1; iLayer <= AliGeomManager::kTPC2; iLayer++) { | |
90 | for (Int_t iModule = 0; iModule < AliGeomManager::LayerSize(iLayer); iModule++) { | |
91 | ||
92 | dx = gRandom->Gaus(0,sigmatr); | |
93 | dy = gRandom->Gaus(0,sigmatr); | |
94 | dz = gRandom->Gaus(0,sigmatr); | |
95 | dpsi = gRandom->Gaus(0,sigmarot); | |
96 | dtheta = gRandom->Gaus(0,sigmarot); | |
97 | dphi = gRandom->Gaus(0,sigmarot); | |
98 | ||
99 | UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,iModule); | |
100 | const char *symname = AliGeomManager::SymName(volid); | |
101 | new(alobj[j++]) AliAlignObjParams(symname, volid, dx, dy, dz, dpsi, dtheta, dphi, kFALSE); | |
102 | } | |
103 | } | |
104 | }else{ | |
105 | AliError(Form("\"%s\" is not a valid identifier for misalignment types. Exiting ...",GetMisalType())); | |
106 | return 0; | |
107 | } | |
108 | ||
109 | return array; | |
110 | } | |
111 | ||
112 | //_______________________________________________________________________________________ | |
113 | AliCDBMetaData* AliTPCMisAligner::GetCDBMetaData() const { | |
114 | // Returns the comment and responsible for the | |
115 | // AliCDBMetaData to be associated with the OCDB entry | |
116 | // containing the TPC array of misalignment objects | |
117 | // | |
118 | AliCDBMetaData* md = new AliCDBMetaData(); | |
119 | md->SetResponsible(""); | |
120 | ||
121 | if(TString(GetMisalType())=="ideal") | |
122 | md->SetComment("Alignment objects for TPC ideal misalignment"); | |
123 | if(TString(GetMisalType())=="residual") | |
124 | md->SetComment("Alignment objects for TPC residual misalignment"); | |
125 | if(TString(GetMisalType())=="full") | |
126 | md->SetComment("Alignment objects for TPC full misalignment"); | |
127 | ||
128 | return md; | |
129 | } |