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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 | // * | |
18 | // * | |
19 | // * this class defines the TOF object to be stored | |
20 | // * in OCDB on a run-by-run basis in order to have the measurement | |
21 | // * of the time evolution of T0 and of TOF resolution including | |
22 | // * average T0 uncertainty | |
23 | // * | |
24 | // * | |
25 | // * | |
26 | ||
27 | #include "AliTOFRunParams.h" | |
28 | #include "TGraph.h" | |
29 | ||
30 | ClassImp(AliTOFRunParams) | |
31 | ||
32 | //_________________________________________________________ | |
33 | ||
34 | AliTOFRunParams::AliTOFRunParams() : | |
35 | TObject(), | |
36 | fNPoints(0), | |
37 | fTimestamp(NULL), | |
38 | fT0(NULL), | |
39 | fTOFResolution(NULL), | |
40 | fT0Spread(NULL), | |
41 | fNRuns(0), | |
42 | fRunNb(NULL), | |
43 | fRunFirstPoint(NULL), | |
44 | fRunLastPoint(NULL), | |
45 | fUseLHCClockPhase(kFALSE) | |
46 | { | |
47 | /* | |
48 | * default constructor | |
49 | */ | |
50 | } | |
51 | ||
52 | //_________________________________________________________ | |
53 | ||
54 | AliTOFRunParams::AliTOFRunParams(Int_t nPoints, Int_t nRuns) : | |
55 | TObject(), | |
56 | fNPoints(nPoints), | |
57 | fTimestamp(new UInt_t[nPoints]), | |
58 | fT0(new Float_t[nPoints]), | |
59 | fTOFResolution(new Float_t[nPoints]), | |
60 | fT0Spread(new Float_t[nPoints]), | |
61 | fNRuns(nRuns), | |
62 | fRunNb(new UInt_t[nRuns]), | |
63 | fRunFirstPoint(new UInt_t[nRuns]), | |
64 | fRunLastPoint(new UInt_t[nRuns]), | |
65 | fUseLHCClockPhase(kFALSE) | |
66 | { | |
67 | /* | |
68 | * standard constructor | |
69 | */ | |
70 | } | |
71 | ||
72 | //_________________________________________________________ | |
73 | ||
74 | AliTOFRunParams::~AliTOFRunParams() | |
75 | { | |
76 | /* | |
77 | * default destructor | |
78 | */ | |
79 | ||
80 | if (fTimestamp) delete [] fTimestamp; | |
81 | if (fT0) delete [] fT0; | |
82 | if (fTOFResolution) delete [] fTOFResolution; | |
83 | if (fT0Spread) delete [] fT0Spread; | |
84 | if (fRunNb) delete [] fRunNb; | |
85 | if (fRunFirstPoint) delete [] fRunFirstPoint; | |
86 | if (fRunLastPoint) delete [] fRunLastPoint; | |
87 | } | |
88 | ||
89 | //_________________________________________________________ | |
90 | ||
91 | AliTOFRunParams::AliTOFRunParams(const AliTOFRunParams &source) : | |
92 | TObject(source), | |
93 | fNPoints(source.fNPoints), | |
94 | fTimestamp(new UInt_t[source.fNPoints]), | |
95 | fT0(new Float_t[source.fNPoints]), | |
96 | fTOFResolution(new Float_t[source.fNPoints]), | |
97 | fT0Spread(new Float_t[source.fNPoints]), | |
98 | fNRuns(source.fNRuns), | |
99 | fRunNb(new UInt_t[source.fNRuns]), | |
100 | fRunFirstPoint(new UInt_t[source.fNRuns]), | |
101 | fRunLastPoint(new UInt_t[source.fNRuns]), | |
102 | fUseLHCClockPhase(source.fUseLHCClockPhase) | |
103 | { | |
104 | /* | |
105 | * copy constructor | |
106 | */ | |
107 | ||
108 | for (Int_t i = 0; i < fNPoints; i++) { | |
109 | fTimestamp[i] = source.fTimestamp[i]; | |
110 | fT0[i] = source.fT0[i]; | |
111 | fTOFResolution[i] = source.fTOFResolution[i]; | |
112 | fT0Spread[i] = source.fT0Spread[i]; | |
113 | } | |
114 | ||
115 | for (Int_t i = 0; i < fNRuns; i++) { | |
116 | fRunNb[i] = source.fRunNb[i]; | |
117 | fRunFirstPoint[i] = source.fRunFirstPoint[i]; | |
118 | fRunLastPoint[i] = source.fRunLastPoint[i]; | |
119 | } | |
120 | ||
121 | } | |
122 | ||
123 | //_________________________________________________________ | |
124 | ||
125 | AliTOFRunParams & | |
126 | AliTOFRunParams::operator=(const AliTOFRunParams &source) | |
127 | { | |
128 | /* | |
129 | * operator= | |
130 | */ | |
131 | ||
132 | if (this == &source) return *this; | |
133 | TObject::operator=(source); | |
134 | ||
135 | if (fNPoints != source.fNPoints) { | |
136 | if (fTimestamp) delete [] fTimestamp; | |
137 | if (fT0) delete [] fT0; | |
138 | if (fTOFResolution) delete [] fTOFResolution; | |
139 | if (fT0Spread) delete [] fT0Spread; | |
140 | fNPoints = source.fNPoints; | |
141 | fTimestamp = new UInt_t[source.fNPoints]; | |
142 | fT0 = new Float_t[source.fNPoints]; | |
143 | fTOFResolution = new Float_t[source.fNPoints]; | |
144 | fT0Spread = new Float_t[source.fNPoints]; | |
145 | } | |
146 | ||
147 | for (Int_t i = 0; i < fNPoints; i++) { | |
148 | fTimestamp[i] = source.fTimestamp[i]; | |
149 | fT0[i] = source.fT0[i]; | |
150 | fTOFResolution[i] = source.fTOFResolution[i]; | |
151 | fT0Spread[i] = source.fT0Spread[i]; | |
152 | } | |
153 | ||
154 | if (fNRuns != source.fNRuns) { | |
155 | if (fRunNb) delete [] fRunNb; | |
156 | if (fRunFirstPoint) delete [] fRunFirstPoint; | |
157 | if (fRunLastPoint) delete [] fRunLastPoint; | |
158 | fNRuns = source.fNRuns; | |
159 | fRunNb = new UInt_t[source.fNRuns]; | |
160 | fRunFirstPoint = new UInt_t[source.fNRuns]; | |
161 | fRunLastPoint = new UInt_t[source.fNRuns]; | |
162 | } | |
163 | ||
164 | for (Int_t i = 0; i < fNRuns; i++) { | |
165 | fRunNb[i] = source.fRunNb[i]; | |
166 | fRunFirstPoint[i] = source.fRunFirstPoint[i]; | |
167 | fRunLastPoint[i] = source.fRunLastPoint[i]; | |
168 | } | |
169 | ||
170 | fUseLHCClockPhase = source.fUseLHCClockPhase; | |
171 | ||
172 | return *this; | |
173 | } | |
174 | ||
175 | //_________________________________________________________ | |
176 | ||
177 | Float_t | |
178 | AliTOFRunParams::EvalT0(UInt_t timestamp) | |
179 | { | |
180 | /* | |
181 | * eval T0 | |
182 | */ | |
183 | ||
184 | /* critical cases: | |
185 | 1. no measurement -> 0. | |
186 | 2. single measurement -> single value | |
187 | 3. timestamp before first measurement -> first value | |
188 | 4. timestamp after last measurement -> last value | |
189 | */ | |
190 | if (fNPoints <= 0 || !fT0 || !fTimestamp) return 0.; | |
191 | if (fNPoints == 1) return fT0[0]; | |
192 | if (timestamp <= fTimestamp[0]) return fT0[0]; | |
193 | if (timestamp >= fTimestamp[fNPoints - 1]) return fT0[fNPoints - 1]; | |
194 | ||
195 | /* interpolate value */ | |
196 | Int_t ipoint; | |
197 | for (ipoint = 0; ipoint < fNPoints - 1; ipoint++) | |
198 | if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1]) | |
199 | break; | |
200 | Float_t coeff = (fT0[ipoint + 1] - fT0[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]); | |
201 | Float_t t0 = fT0[ipoint] + coeff * (timestamp - fTimestamp[ipoint]); | |
202 | ||
203 | return t0; | |
204 | } | |
205 | ||
206 | //_________________________________________________________ | |
207 | ||
208 | Float_t | |
209 | AliTOFRunParams::EvalTOFResolution(UInt_t timestamp) | |
210 | { | |
211 | /* | |
212 | * eval TOF resolution | |
213 | */ | |
214 | ||
215 | /* critical cases: | |
216 | 1. no measurement -> 0. | |
217 | 2. single measurement -> single value | |
218 | 3. timestamp before first measurement -> first value | |
219 | 4. timestamp after last measurement -> last value | |
220 | */ | |
221 | if (fNPoints <= 0 || !fTOFResolution || !fTimestamp) return 0.; | |
222 | if (fNPoints == 1) return fTOFResolution[0]; | |
223 | if (timestamp <= fTimestamp[0]) return fTOFResolution[0]; | |
224 | if (timestamp >= fTimestamp[fNPoints - 1]) return fTOFResolution[fNPoints - 1]; | |
225 | ||
226 | /* interpolate value */ | |
227 | Int_t ipoint; | |
228 | for (ipoint = 0; ipoint < fNPoints - 1; ipoint++) | |
229 | if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1]) | |
230 | break; | |
231 | Float_t coeff = (fTOFResolution[ipoint + 1] - fTOFResolution[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]); | |
232 | Float_t reso = fTOFResolution[ipoint] + coeff * (timestamp - fTimestamp[ipoint]); | |
233 | ||
234 | return reso; | |
235 | } | |
236 | ||
237 | //_________________________________________________________ | |
238 | ||
239 | Float_t | |
240 | AliTOFRunParams::EvalT0Spread(UInt_t timestamp) | |
241 | { | |
242 | /* | |
243 | * eval T0 spread | |
244 | */ | |
245 | ||
246 | /* critical cases: | |
247 | 1. no measurement -> 0. | |
248 | 2. single measurement -> single value | |
249 | 3. timestamp before first measurement -> first value | |
250 | 4. timestamp after last measurement -> last value | |
251 | */ | |
252 | if (fNPoints <= 0 || !fT0Spread || !fTimestamp) return 0.; | |
253 | if (fNPoints == 1) return fT0Spread[0]; | |
254 | if (timestamp <= fTimestamp[0]) return fT0Spread[0]; | |
255 | if (timestamp >= fTimestamp[fNPoints - 1]) return fT0Spread[fNPoints - 1]; | |
256 | ||
257 | /* interpolate value */ | |
258 | Int_t ipoint; | |
259 | for (ipoint = 0; ipoint < fNPoints - 1; ipoint++) | |
260 | if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1]) | |
261 | break; | |
262 | Float_t coeff = (fT0Spread[ipoint + 1] - fT0Spread[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]); | |
263 | Float_t spread = fT0Spread[ipoint] + coeff * (timestamp - fTimestamp[ipoint]); | |
264 | ||
265 | return spread; | |
266 | } | |
267 | ||
268 | //_________________________________________________________ | |
269 | ||
270 | Float_t | |
271 | AliTOFRunParams::Average(Float_t *data, Int_t first, Int_t last) | |
272 | { | |
273 | /* | |
274 | * average | |
275 | */ | |
276 | ||
277 | if (first < 0) first = 0; | |
278 | if (last >= fNPoints) last = fNPoints - 1; | |
279 | Float_t value = 0.; | |
280 | Int_t npt = 0; | |
281 | for (Int_t i = first; i <= last; i++) { | |
282 | value += data[i]; | |
283 | npt++; | |
284 | } | |
285 | if (npt <= 0) return 0.; | |
286 | value /= npt; | |
287 | return value; | |
288 | ||
289 | } | |
290 | ||
291 | //_________________________________________________________ | |
292 | ||
293 | Float_t | |
294 | AliTOFRunParams::Average(Float_t *data, UInt_t runNb) | |
295 | { | |
296 | /* | |
297 | * average | |
298 | */ | |
299 | ||
300 | /* critical cases: | |
301 | 1. no measurement -> 0. | |
302 | 2. no runNb structure -> average over all points | |
303 | 3. runNb not found -> average over all points | |
304 | */ | |
305 | if (fNPoints <= 0 || !fT0 || !fTimestamp) return 0.; | |
306 | if (fNRuns <= 0 || !fRunNb || !fRunFirstPoint || !fRunLastPoint) return Average(data, 0, fNPoints - 1); | |
307 | ||
308 | ||
309 | /* search for runNb */ | |
310 | UInt_t runPoint = 0; | |
311 | Bool_t gotRunNb = kFALSE; | |
312 | for (Int_t irun = 0; irun < fNRuns; irun++) { | |
313 | if (fRunNb[irun] == runNb) { | |
314 | runPoint = irun; | |
315 | gotRunNb = kTRUE; | |
316 | break; | |
317 | } | |
318 | } | |
319 | if (!gotRunNb) return Average(data, 0, fNPoints - 1); | |
320 | ||
321 | /* average between first and last run points */ | |
322 | UInt_t firstPoint = fRunFirstPoint[runPoint]; | |
323 | UInt_t lastPoint = fRunLastPoint[runPoint]; | |
324 | return Average(data, firstPoint, lastPoint); | |
325 | ||
326 | } | |
327 | ||
328 | //_________________________________________________________ | |
329 | ||
330 | TGraph * | |
331 | AliTOFRunParams::DrawGraph(Float_t *data, Option_t* option) | |
332 | { | |
333 | /* | |
334 | * draw | |
335 | */ | |
336 | ||
337 | if (fNPoints == 0 || !data || !fTimestamp) return NULL; | |
338 | ||
339 | Float_t ts[1000000]; | |
340 | for (Int_t i = 0; i < fNPoints; i++) | |
341 | ts[i] = fTimestamp[i]; | |
342 | ||
343 | TGraph *graph = new TGraph(fNPoints, ts, data); | |
344 | graph->Draw(option); | |
345 | return graph; | |
346 | } | |
347 | ||
348 | //_________________________________________________________ | |
349 | ||
350 | TGraph * | |
351 | AliTOFRunParams::DrawCorrelationGraph(Float_t *datax, Float_t *datay, Option_t* option) | |
352 | { | |
353 | /* | |
354 | * draw | |
355 | */ | |
356 | ||
357 | if (fNPoints == 0 || !datax || !datay) return NULL; | |
358 | ||
359 | TGraph *graph = new TGraph(fNPoints, datax, datay); | |
360 | graph->Draw(option); | |
361 | return graph; | |
362 | } | |
363 |