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b2e6f0b0 | 1 | #ifndef ALIFMDSURVEYTOALIGNOBJS_H |
2 | #define ALIFMDSURVEYTOALIGNOBJS_H | |
3 | #include <AliSurveyToAlignObjs.h> | |
f567c3ce | 4 | #include <TGeoMatrix.h> |
b2e6f0b0 | 5 | |
6 | // Forward decl | |
7 | class TVector3; | |
f567c3ce | 8 | class TGeoMatrix; |
4c01505b | 9 | class AliAlignObjParams; |
b2e6f0b0 | 10 | |
f567c3ce | 11 | /** |
12 | * Class to take survey data and transform that to alignment objects. | |
13 | * | |
14 | */ | |
b2e6f0b0 | 15 | class AliFMDSurveyToAlignObjs : public AliSurveyToAlignObjs |
16 | { | |
17 | public: | |
f567c3ce | 18 | /** |
19 | * Constructor | |
20 | * | |
21 | */ | |
638bc5af | 22 | AliFMDSurveyToAlignObjs() : AliSurveyToAlignObjs(), |
23 | fFMD1Delta(0), | |
24 | fFMD2Delta(0) {} | |
f567c3ce | 25 | /** |
26 | * Run the task. | |
27 | * | |
28 | */ | |
b2e6f0b0 | 29 | void Run(); |
4c01505b | 30 | void Run(const char** files); |
f567c3ce | 31 | /** |
32 | * | |
33 | * Method to create the alignment objects | |
34 | * | |
35 | * @return @c true on success, @c false otherwise | |
36 | */ | |
37 | Bool_t CreateAlignObjs(); | |
38 | ||
39 | ||
40 | TClonesArray* GetAlignObjArray() const { return fAlignObjArray; } | |
41 | ||
b2e6f0b0 | 42 | protected: |
f567c3ce | 43 | /** |
44 | * Do the FMD1 analysis. We have 4 survey targets on V0-A on the | |
45 | * C-side. These are | |
46 | * | |
47 | * - V0A_ICT In-side, C-side, top. | |
48 | * - V0A_ICB In-side, C-side, bottom. | |
49 | * - V0A_OCT Out-side, C-side, top. | |
50 | * - V0A_OCB Out-side, C-side, bottom. | |
51 | * | |
52 | * These 4 survey targets sit 3.3mm over the V0-A C-side surface, or | |
53 | * 3.3mm over the back surface of FMD1. | |
54 | * | |
55 | * Since these are really sitting on a plane, we can use the method | |
56 | * proposed by the CORE offline. | |
57 | * | |
58 | * @return @c true on success, @c false otherwise. | |
59 | */ | |
faf80567 | 60 | Bool_t DoFMD1(); |
f567c3ce | 61 | /** |
62 | * Get the FMD1 plane from the survey points | |
63 | * | |
64 | * @param rot Rotation matrix (direction cosines) | |
65 | * @param trans Translation | |
66 | * | |
67 | * @return @c true on success, @c false otherwise. | |
68 | */ | |
faf80567 | 69 | Bool_t GetFMD1Plane(Double_t* rot, Double_t* trans) const; |
f567c3ce | 70 | /** |
71 | * Do the FMD2 calculations. We have 6 survey points of which only | |
72 | * 5 are normally surveyed. These are all sittings | |
73 | * | |
74 | * - FMD2_ITOP - In-side, top | |
75 | * - FMD2_IBOTM - In-side, middle bottom | |
76 | * - FMD2_IBOT - In-side, bottom | |
77 | * - FMD2_OTOP - Out-side, top | |
78 | * - FMD2_OBOTM - Out-side, middle bottom | |
79 | * - FMD2_OBOT - Out-side, bottom | |
80 | * | |
81 | * The nominal coordinates of these retro-fitted survey stickers | |
82 | * isn't known. Also, these stickers are put on a thin (0.3mm | |
83 | * thick) carbon cover which flexes quite easily. This means, that | |
84 | * to rotations and xy-translation obtained from the survey data | |
85 | * cannot be used, and left is only the z-translation. | |
86 | * | |
87 | * Further more, since FMD2 to is attached to the ITS SPD thermal | |
88 | * screen, it is questionable if the FMD2 survey will ever be used. | |
89 | * | |
90 | * @return @c true on success, @c false otherwise. | |
91 | */ | |
b2e6f0b0 | 92 | Bool_t DoFMD2(); |
f567c3ce | 93 | /** |
94 | * Get the surveyed plane corresponding to the backside of FMD2. | |
95 | * The plane is done as a best fit of the plane equation to at least | |
96 | * 4 of the available survey points. | |
97 | * | |
98 | * @param rot Rotation matrix (direction cosines) | |
99 | * @param trans Translation vector. | |
100 | * | |
101 | * @return @c true on success, @c false otherwise | |
102 | */ | |
faf80567 | 103 | Bool_t GetFMD2Plane(Double_t* rot, Double_t* trans) const; |
f567c3ce | 104 | /** |
105 | * Get the factor to translate current coordinates to the canonical | |
106 | * unit (centi-meters). | |
107 | * | |
108 | * @return Conversion factor | |
109 | */ | |
faf80567 | 110 | Double_t GetUnitFactor() const; |
f567c3ce | 111 | /** |
112 | * Get the coordinates of a survey point (if available). | |
113 | * | |
114 | * @param name Name of the survey point. | |
115 | * @param p Coordinates. | |
116 | * @param e Error on the measurement. | |
117 | * | |
118 | * @return @c true if the survey data is available, @c false otherwise. | |
119 | */ | |
faf80567 | 120 | Bool_t GetPoint(const char* name, TVector3& p, TVector3& e) const; |
f567c3ce | 121 | /** |
122 | * Calculate the plane translation and rotation from 3 survey points | |
123 | * | |
124 | * @param a 1st Survey point | |
125 | * @param b 2nd Survey point | |
126 | * @param c 3rd Survey point | |
127 | * @param trans Translation vector | |
128 | * @param rot Rotation matrix (direction cosines) | |
129 | * | |
130 | * @return | |
131 | */ | |
faf80567 | 132 | Bool_t CalculatePlane(const TVector3& a, |
133 | const TVector3& b, | |
f567c3ce | 134 | const TVector3& c, |
135 | Double_t depth, | |
faf80567 | 136 | Double_t* trans, |
137 | Double_t* rot) const; | |
f567c3ce | 138 | /** |
139 | * Calculate the plane rotation and translation by doing a fit of | |
140 | * the plane equation to the surveyed points. At least 4 points | |
141 | * must be passed in the @a points array with corresponding errors | |
142 | * in the array @a errors. The arrays are assumed to contain | |
143 | * TVector3 objects. | |
144 | * | |
145 | * @param points Array surveyed positions | |
146 | * @param errors Array of errors corresponding to @a points | |
147 | * @param depth Survey targets depth (perpendicular to the plane) | |
148 | * @param trans On return, translation of the plane | |
149 | * @param rot On return, rotation (direction cosines) of the plane | |
150 | * | |
151 | * @return @c true on success, @c false otherwise | |
152 | */ | |
153 | Bool_t FitPlane(const TObjArray& points, | |
154 | const TObjArray& errors, | |
155 | Double_t depth, | |
156 | Double_t* trans, | |
157 | Double_t* rot) const; | |
158 | /** | |
159 | * Create a delta transform from a global rotation matrix and | |
160 | * translation. | |
161 | * | |
162 | * @param global Global matrix of element to transform. | |
163 | * @param rot Rotation matrix (direction cosines) | |
164 | * @param trans Translation | |
165 | * @param delta On return, the delta transform | |
166 | * | |
167 | * @return Newly | |
168 | */ | |
09b6c804 | 169 | Bool_t MakeDelta(const TGeoMatrix* global, |
170 | const Double_t* rot, | |
171 | const Double_t* trans, | |
f567c3ce | 172 | TGeoHMatrix& delta) const; |
173 | /** | |
174 | * Create a delta transform from a global rotation matrix and | |
175 | * translation. | |
176 | * | |
177 | * @param path Path of element to transform. | |
178 | * @param rot Rotation matrix (direction cosines) | |
179 | * @param trans Translation | |
180 | * @param delta On return, the delta transform | |
181 | * | |
182 | * @return Newly | |
183 | */ | |
184 | Bool_t MakeDelta(const char* path, | |
09b6c804 | 185 | const Double_t* rot, |
186 | const Double_t* trans, | |
f567c3ce | 187 | TGeoHMatrix& delta) const; |
4c01505b | 188 | /** |
189 | * Create a default (i.e., no rotation or translation) alignment object. | |
190 | * | |
191 | * @param path Path to volume | |
192 | * @param id Id of volume | |
193 | * | |
194 | * @return Created object | |
195 | */ | |
196 | AliAlignObjParams* CreateDefaultAlignObj(const TString& path, Int_t id=0); | |
197 | /** | |
198 | * Check if we have an alignment object for the given path alread | |
199 | * | |
200 | * @param path PAth to check | |
201 | * | |
202 | * @return Pointer to object if found, otherwise 0 | |
203 | */ | |
204 | AliAlignObjParams* FindAlignObj(const TString& path) const; | |
205 | /** | |
206 | * Fill In default alignmen objects | |
207 | * | |
208 | * @return true on sucess | |
209 | */ | |
210 | Bool_t FillDefaultAlignObjs(); | |
211 | ||
f567c3ce | 212 | /** |
213 | * Service member function to print a vector | |
214 | * | |
215 | * @param text Prefix text | |
216 | * @param v Vector (array of 3 doubles) | |
217 | */ | |
b2e6f0b0 | 218 | static void PrintVector(const char* text, const Double_t* v); |
f567c3ce | 219 | /** |
220 | * Service member function to print a vector | |
221 | * | |
222 | * @param text Prefix text | |
223 | * @param v Vector | |
224 | */ | |
b2e6f0b0 | 225 | static void PrintVector(const char* text, const TVector3& v); |
f567c3ce | 226 | /** |
227 | * Service member function to print a rotation matrix | |
228 | * | |
229 | * @param text Prefix text | |
230 | * @param v Matrix (array of 9 doubles) | |
231 | */ | |
b2e6f0b0 | 232 | static void PrintRotation(const char* text, const Double_t* rot); |
233 | ||
f567c3ce | 234 | TGeoHMatrix fFMD1Delta; // FMD1 delta transform |
235 | TGeoHMatrix fFMD2Delta; // FMD2 delta transform | |
b2e6f0b0 | 236 | |
237 | ClassDef(AliFMDSurveyToAlignObjs,0) // Convert FMD survey to alignments | |
238 | }; | |
239 | ||
240 | ||
241 | #endif | |
242 | //____________________________________________________________________ | |
243 | // | |
244 | // Local Variables: | |
245 | // mode: C++ | |
246 | // End: | |
247 | // | |
248 |