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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 | // Implementation of the alignment object class through | |
18 | // the concrete representation of alignment object class | |
19 | // AliAlignObjParams derived from the base class AliAlignObj | |
20 | //----------------------------------------------------------------- | |
21 | ||
22 | #include "AliAlignObj.h" | |
23 | #include "AliAlignObjParams.h" | |
24 | ||
25 | ClassImp(AliAlignObjParams) | |
26 | ||
27 | //_____________________________________________________________________________ | |
28 | AliAlignObjParams::AliAlignObjParams() : AliAlignObj() | |
29 | { | |
30 | // default constructor | |
31 | // | |
32 | fTranslation[0]=fTranslation[1]=fTranslation[2]=0.; | |
33 | fRotation[0]=fRotation[1]=fRotation[2]=0.; | |
34 | } | |
35 | ||
36 | //_____________________________________________________________________________ | |
37 | AliAlignObjParams::AliAlignObjParams(const char* symname, UShort_t volUId, Double_t x, Double_t y, Double_t z, Double_t psi, Double_t theta, Double_t phi, Bool_t global) throw (const Char_t *) : AliAlignObj(symname,volUId) | |
38 | { | |
39 | // standard constructor with 3 translation + 3 rotation parameters | |
40 | // If the user explicitly sets the global variable to kFALSE then the | |
41 | // parameters are interpreted as giving the local transformation. | |
42 | // This requires to have a gGeoMenager active instance, otherwise the | |
43 | // constructor will fail (no object created) | |
44 | // | |
45 | if(global){ | |
46 | SetPars(x, y, z, psi, theta, phi); | |
47 | }else{ | |
48 | if(!SetLocalPars(x,y,z,psi,theta,phi)) throw "Alignment object creation failed (TGeo instance needed)!\n"; | |
49 | } | |
50 | } | |
51 | ||
52 | //_____________________________________________________________________________ | |
53 | AliAlignObjParams::AliAlignObjParams(const char* symname, UShort_t volUId, TGeoMatrix& m, Bool_t global) throw (const Char_t *) : AliAlignObj(symname,volUId) | |
54 | { | |
55 | // standard constructor with TGeoMatrix | |
56 | // If the user explicitly sets the global variable to kFALSE then the | |
57 | // parameters are interpreted as giving the local transformation. | |
58 | // This requires to have a gGeoMenager active instance, otherwise the | |
59 | // constructor will fail (no object created) | |
60 | // | |
61 | ||
62 | if (!SetMatrix(m)) throw "Alignment object creation failed (can't extract roll-pitch-yall angles from the matrix)!\n"; | |
63 | ||
64 | if (!global) { | |
65 | if (!SetLocalPars(fTranslation[0],fTranslation[1],fTranslation[2],fRotation[0],fRotation[1],fRotation[2])) throw "Alignment object creation failed (TGeo instance needed)!\n"; | |
66 | } | |
67 | } | |
68 | ||
69 | //_____________________________________________________________________________ | |
70 | AliAlignObjParams::AliAlignObjParams(const AliAlignObj& theAlignObj) : | |
71 | AliAlignObj(theAlignObj) | |
72 | { | |
73 | // copy constructor | |
74 | // | |
75 | Double_t tr[3]; | |
76 | theAlignObj.GetTranslation(tr); | |
77 | SetTranslation(tr[0],tr[1],tr[2]); | |
78 | Double_t rot[3]; | |
79 | if (theAlignObj.GetAngles(rot)) | |
80 | SetRotation(rot[0],rot[1],rot[2]); | |
81 | } | |
82 | ||
83 | //_____________________________________________________________________________ | |
84 | AliAlignObjParams &AliAlignObjParams::operator =(const AliAlignObj& theAlignObj) | |
85 | { | |
86 | // assignment operator | |
87 | // | |
88 | if(this==&theAlignObj) return *this; | |
89 | ((AliAlignObj *)this)->operator=(theAlignObj); | |
90 | ||
91 | Double_t tr[3]; | |
92 | theAlignObj.GetTranslation(tr); | |
93 | SetTranslation(tr[0],tr[1],tr[2]); | |
94 | Double_t rot[3]; | |
95 | if (theAlignObj.GetAngles(rot)) | |
96 | SetRotation(rot[0],rot[1],rot[2]); | |
97 | ||
98 | return *this; | |
99 | } | |
100 | ||
101 | //_____________________________________________________________________________ | |
102 | AliAlignObjParams::~AliAlignObjParams() | |
103 | { | |
104 | // default destructor | |
105 | // | |
106 | } | |
107 | ||
108 | //_____________________________________________________________________________ | |
109 | void AliAlignObjParams::SetTranslation(const TGeoMatrix& m) | |
110 | { | |
111 | // set the translation parameters extracting them from the matrix | |
112 | // passed as argument | |
113 | // | |
114 | if(m.IsTranslation()){ | |
115 | const Double_t* tr = m.GetTranslation(); | |
116 | fTranslation[0]=tr[0]; fTranslation[1]=tr[1]; fTranslation[2]=tr[2]; | |
117 | }else{ | |
118 | fTranslation[0] = fTranslation[1] = fTranslation[2] = 0.; | |
119 | } | |
120 | } | |
121 | ||
122 | //_____________________________________________________________________________ | |
123 | Bool_t AliAlignObjParams::SetRotation(const TGeoMatrix& m) | |
124 | { | |
125 | // set the rotation parameters extracting them from the matrix | |
126 | // passed as argument | |
127 | // | |
128 | if(m.IsRotation()){ | |
129 | const Double_t* rot = m.GetRotationMatrix(); | |
130 | return MatrixToAngles(rot,fRotation); | |
131 | }else{ | |
132 | fRotation[0] = fRotation[1] = fRotation[2] = 0.; | |
133 | return kTRUE; | |
134 | } | |
135 | } | |
136 | ||
137 | //_____________________________________________________________________________ | |
138 | void AliAlignObjParams::GetMatrix(TGeoHMatrix& m) const | |
139 | { | |
140 | // get the transformation matrix from the data memebers parameters | |
141 | m.SetTranslation(&fTranslation[0]); | |
142 | Double_t rot[9]; | |
143 | AnglesToMatrix(fRotation,rot); | |
144 | m.SetRotation(rot); | |
145 | } | |
146 | ||
147 | //_____________________________________________________________________________ | |
148 | AliAlignObj& AliAlignObjParams::Inverse() const | |
149 | { | |
150 | // Return a temporary "inverse" of the alignment object, that is return | |
151 | // an object with inverted transformation matrix. | |
152 | // | |
153 | static AliAlignObjParams a; | |
154 | a = *this; | |
155 | ||
156 | TGeoHMatrix m; | |
157 | GetMatrix(m); | |
158 | a.SetMatrix(m.Inverse()); | |
159 | ||
160 | return a; | |
161 | } |