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3551db50 | 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 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // Class containing constant reconstruction parameters // | |
21 | // // | |
22 | // Request an instance with AliTRDRecParam::Instance() // | |
23 | // Then request the needed values // | |
24 | // // | |
25 | /////////////////////////////////////////////////////////////////////////////// | |
26 | ||
27 | #include "AliTRDRecParam.h" | |
28 | ||
29 | ClassImp(AliTRDRecParam) | |
30 | ||
31 | AliTRDRecParam* AliTRDRecParam::fgInstance = 0; | |
32 | Bool_t AliTRDRecParam::fgTerminated = kFALSE; | |
33 | ||
34 | //_ singleton implementation __________________________________________________ | |
35 | AliTRDRecParam* AliTRDRecParam::Instance() | |
36 | { | |
37 | // | |
38 | // Singleton implementation | |
39 | // Returns an instance of this class, it is created if neccessary | |
40 | // | |
41 | ||
42 | if (fgTerminated != kFALSE) | |
43 | return 0; | |
44 | ||
45 | if (fgInstance == 0) | |
46 | fgInstance = new AliTRDRecParam(); | |
47 | ||
48 | return fgInstance; | |
49 | } | |
50 | ||
51 | void AliTRDRecParam::Terminate() | |
52 | { | |
53 | // | |
54 | // Singleton implementation | |
55 | // Deletes the instance of this class and sets the terminated flag, instances cannot be requested anymore | |
56 | // This function can be called several times. | |
57 | // | |
58 | ||
59 | fgTerminated = kTRUE; | |
60 | ||
61 | if (fgInstance != 0) | |
62 | { | |
63 | delete fgInstance; | |
64 | fgInstance = 0; | |
65 | } | |
66 | } | |
67 | ||
68 | //_____________________________________________________________________________ | |
69 | AliTRDRecParam::AliTRDRecParam() | |
70 | { | |
71 | // | |
72 | // constructor | |
73 | // | |
74 | ||
75 | fClusMaxThresh = 0; | |
76 | fClusSigThresh = 0; | |
77 | ||
78 | fLUT = 0; | |
79 | fLUTOn = kFALSE; | |
80 | fLUTbin = 0; | |
81 | ||
a305677e | 82 | fTCOn = kFALSE; |
83 | fTCnexp = 0; | |
84 | ||
3551db50 | 85 | Init(); |
ab0a4106 | 86 | } |
3551db50 | 87 | |
88 | //_____________________________________________________________________________ | |
89 | AliTRDRecParam::~AliTRDRecParam() | |
90 | { | |
91 | // | |
92 | // destructor | |
93 | // | |
94 | ||
95 | if (fLUT) { | |
96 | delete [] fLUT; | |
97 | fLUT = 0; | |
98 | } | |
ab0a4106 | 99 | } |
3551db50 | 100 | |
101 | //_____________________________________________________________________________ | |
102 | AliTRDRecParam::AliTRDRecParam(const AliTRDRecParam &p):TObject(p) | |
103 | { | |
104 | // | |
105 | // copy constructor | |
106 | // | |
107 | ||
108 | ((AliTRDRecParam &) p).Copy(*this); | |
109 | } | |
110 | ||
111 | ||
112 | //_____________________________________________________________________________ | |
113 | AliTRDRecParam &AliTRDRecParam::operator=(const AliTRDRecParam &p) | |
114 | { | |
115 | // | |
116 | // Assignment operator | |
117 | // | |
118 | ||
119 | if (this != &p) ((AliTRDRecParam &) p).Copy(*this); | |
120 | return *this; | |
121 | } | |
122 | ||
123 | //_____________________________________________________________________________ | |
124 | void AliTRDRecParam::Copy(TObject &p) const | |
125 | { | |
126 | // | |
127 | // Copy function | |
128 | // | |
129 | ||
130 | AliTRDRecParam* target = dynamic_cast<AliTRDRecParam*> (&p); | |
131 | if (!target) | |
132 | return; | |
133 | ||
134 | target->fLUTOn = fLUTOn; | |
135 | target->fLUTbin = fLUTbin; | |
136 | if (target->fLUT) delete [] target->fLUT; | |
137 | target->fLUT = new Float_t[fLUTbin]; | |
138 | for (Int_t iBin = 0; iBin < fLUTbin; iBin++) { | |
139 | target->fLUT[iBin] = fLUT[iBin]; | |
140 | } | |
141 | ||
142 | target->fClusMaxThresh = fClusMaxThresh; | |
143 | target->fClusSigThresh = fClusSigThresh; | |
144 | ||
a305677e | 145 | target->fTCOn = fTCOn; |
146 | target->fTCnexp = fTCnexp; | |
147 | ||
3551db50 | 148 | } |
149 | ||
150 | //_____________________________________________________________________________ | |
151 | void AliTRDRecParam::Init() | |
152 | { | |
153 | // | |
154 | // constructor helper | |
155 | // | |
156 | ||
157 | // The default parameter for the clustering | |
11dc3a9e | 158 | fClusMaxThresh = 3.5; |
159 | fClusSigThresh = 1.5; | |
3551db50 | 160 | |
161 | // Use the LUT | |
162 | fLUTOn = kTRUE; | |
163 | ||
164 | // Create the LUT | |
165 | FillLUT(); | |
a305677e | 166 | |
167 | // The tail cancelation | |
168 | fTCOn = kTRUE; | |
11dc3a9e | 169 | |
a305677e | 170 | // The number of exponentials |
171 | fTCnexp = 1; | |
172 | ||
3551db50 | 173 | } |
174 | ||
175 | //_____________________________________________________________________________ | |
176 | void AliTRDRecParam::FillLUT() | |
177 | { | |
178 | // | |
179 | // Create the LUT | |
180 | // | |
181 | ||
182 | const Int_t kNlut = 128; | |
183 | ||
184 | fLUTbin = kNplan * kNlut; | |
185 | ||
186 | // The lookup table from Bogdan | |
187 | Float_t lut[kNplan][kNlut] = { | |
188 | { | |
189 | 0.0070, 0.0150, 0.0224, 0.0298, 0.0374, 0.0454, 0.0533, 0.0611, | |
190 | 0.0684, 0.0755, 0.0827, 0.0900, 0.0975, 0.1049, 0.1120, 0.1187, | |
191 | 0.1253, 0.1318, 0.1385, 0.1453, 0.1519, 0.1584, 0.1646, 0.1704, | |
192 | 0.1762, 0.1821, 0.1879, 0.1938, 0.1996, 0.2053, 0.2108, 0.2160, | |
193 | 0.2210, 0.2260, 0.2310, 0.2361, 0.2411, 0.2461, 0.2509, 0.2557, | |
194 | 0.2602, 0.2646, 0.2689, 0.2732, 0.2774, 0.2816, 0.2859, 0.2901, | |
195 | 0.2942, 0.2983, 0.3022, 0.3061, 0.3099, 0.3136, 0.3172, 0.3207, | |
196 | 0.3242, 0.3278, 0.3312, 0.3347, 0.3382, 0.3416, 0.3450, 0.3483, | |
197 | 0.3515, 0.3547, 0.3579, 0.3609, 0.3639, 0.3669, 0.3698, 0.3727, | |
198 | 0.3756, 0.3785, 0.3813, 0.3842, 0.3870, 0.3898, 0.3926, 0.3952, | |
199 | 0.3979, 0.4005, 0.4032, 0.4057, 0.4082, 0.4108, 0.4132, 0.4157, | |
200 | 0.4181, 0.4205, 0.4228, 0.4252, 0.4275, 0.4299, 0.4322, 0.4345, | |
201 | 0.4367, 0.4390, 0.4412, 0.4434, 0.4456, 0.4478, 0.4499, 0.4520, | |
202 | 0.4541, 0.4562, 0.4583, 0.4603, 0.4623, 0.4643, 0.4663, 0.4683, | |
203 | 0.4702, 0.4722, 0.4741, 0.4758, 0.4774, 0.4790, 0.4805, 0.4824, | |
204 | 0.4844, 0.4863, 0.4883, 0.4902, 0.4921, 0.4940, 0.4959, 0.4978 | |
205 | }, | |
206 | { | |
207 | 0.0072, 0.0156, 0.0235, 0.0313, 0.0394, 0.0478, 0.0561, 0.0642, | |
208 | 0.0718, 0.0792, 0.0868, 0.0947, 0.1025, 0.1101, 0.1172, 0.1241, | |
209 | 0.1309, 0.1378, 0.1449, 0.1518, 0.1586, 0.1650, 0.1710, 0.1770, | |
210 | 0.1830, 0.1891, 0.1952, 0.2011, 0.2070, 0.2125, 0.2177, 0.2229, | |
211 | 0.2280, 0.2332, 0.2383, 0.2435, 0.2484, 0.2533, 0.2581, 0.2627, | |
212 | 0.2670, 0.2714, 0.2757, 0.2799, 0.2842, 0.2884, 0.2927, 0.2968, | |
213 | 0.3008, 0.3048, 0.3086, 0.3123, 0.3159, 0.3195, 0.3231, 0.3266, | |
214 | 0.3301, 0.3335, 0.3370, 0.3404, 0.3438, 0.3471, 0.3504, 0.3536, | |
215 | 0.3567, 0.3598, 0.3628, 0.3657, 0.3686, 0.3715, 0.3744, 0.3772, | |
216 | 0.3800, 0.3828, 0.3856, 0.3884, 0.3911, 0.3938, 0.3965, 0.3991, | |
217 | 0.4016, 0.4042, 0.4067, 0.4092, 0.4116, 0.4140, 0.4164, 0.4187, | |
218 | 0.4211, 0.4234, 0.4257, 0.4280, 0.4302, 0.4325, 0.4347, 0.4369, | |
219 | 0.4391, 0.4413, 0.4434, 0.4456, 0.4477, 0.4497, 0.4518, 0.4538, | |
220 | 0.4558, 0.4578, 0.4598, 0.4618, 0.4637, 0.4656, 0.4675, 0.4694, | |
221 | 0.4713, 0.4732, 0.4750, 0.4766, 0.4781, 0.4797, 0.4813, 0.4832, | |
222 | 0.4851, 0.4870, 0.4888, 0.4906, 0.4925, 0.4942, 0.4960, 0.4978 | |
223 | }, | |
224 | { | |
225 | 0.0075, 0.0163, 0.0246, 0.0328, 0.0415, 0.0504, 0.0592, 0.0674, | |
226 | 0.0753, 0.0832, 0.0914, 0.0996, 0.1077, 0.1154, 0.1225, 0.1296, | |
227 | 0.1369, 0.1442, 0.1515, 0.1585, 0.1652, 0.1714, 0.1776, 0.1839, | |
228 | 0.1902, 0.1965, 0.2025, 0.2085, 0.2141, 0.2194, 0.2247, 0.2299, | |
229 | 0.2352, 0.2405, 0.2457, 0.2507, 0.2557, 0.2604, 0.2649, 0.2693, | |
230 | 0.2737, 0.2780, 0.2823, 0.2867, 0.2909, 0.2951, 0.2992, 0.3033, | |
231 | 0.3072, 0.3110, 0.3146, 0.3182, 0.3218, 0.3253, 0.3288, 0.3323, | |
232 | 0.3357, 0.3392, 0.3426, 0.3459, 0.3492, 0.3524, 0.3555, 0.3586, | |
233 | 0.3616, 0.3645, 0.3674, 0.3703, 0.3731, 0.3759, 0.3787, 0.3815, | |
234 | 0.3843, 0.3870, 0.3897, 0.3925, 0.3950, 0.3976, 0.4002, 0.4027, | |
235 | 0.4052, 0.4076, 0.4101, 0.4124, 0.4148, 0.4171, 0.4194, 0.4217, | |
236 | 0.4239, 0.4262, 0.4284, 0.4306, 0.4328, 0.4350, 0.4371, 0.4393, | |
237 | 0.4414, 0.4435, 0.4455, 0.4476, 0.4496, 0.4516, 0.4536, 0.4555, | |
238 | 0.4575, 0.4594, 0.4613, 0.4632, 0.4650, 0.4669, 0.4687, 0.4705, | |
239 | 0.4723, 0.4741, 0.4758, 0.4773, 0.4789, 0.4804, 0.4821, 0.4839, | |
240 | 0.4857, 0.4875, 0.4893, 0.4910, 0.4928, 0.4945, 0.4961, 0.4978 | |
241 | }, | |
242 | { | |
243 | 0.0078, 0.0171, 0.0258, 0.0345, 0.0438, 0.0532, 0.0624, 0.0708, | |
244 | 0.0791, 0.0875, 0.0962, 0.1048, 0.1130, 0.1206, 0.1281, 0.1356, | |
245 | 0.1432, 0.1508, 0.1582, 0.1651, 0.1716, 0.1780, 0.1845, 0.1910, | |
246 | 0.1975, 0.2038, 0.2099, 0.2155, 0.2210, 0.2263, 0.2317, 0.2371, | |
247 | 0.2425, 0.2477, 0.2528, 0.2578, 0.2626, 0.2671, 0.2715, 0.2759, | |
248 | 0.2803, 0.2846, 0.2890, 0.2933, 0.2975, 0.3016, 0.3056, 0.3095, | |
249 | 0.3132, 0.3168, 0.3204, 0.3239, 0.3274, 0.3309, 0.3344, 0.3378, | |
250 | 0.3412, 0.3446, 0.3479, 0.3511, 0.3543, 0.3574, 0.3603, 0.3633, | |
251 | 0.3662, 0.3690, 0.3718, 0.3747, 0.3774, 0.3802, 0.3829, 0.3857, | |
252 | 0.3883, 0.3910, 0.3936, 0.3962, 0.3987, 0.4012, 0.4037, 0.4061, | |
253 | 0.4085, 0.4109, 0.4132, 0.4155, 0.4177, 0.4200, 0.4222, 0.4244, | |
254 | 0.4266, 0.4288, 0.4309, 0.4331, 0.4352, 0.4373, 0.4394, 0.4414, | |
255 | 0.4435, 0.4455, 0.4475, 0.4494, 0.4514, 0.4533, 0.4552, 0.4571, | |
256 | 0.4590, 0.4608, 0.4626, 0.4645, 0.4662, 0.4680, 0.4698, 0.4715, | |
257 | 0.4733, 0.4750, 0.4766, 0.4781, 0.4796, 0.4812, 0.4829, 0.4846, | |
258 | 0.4863, 0.4880, 0.4897, 0.4914, 0.4930, 0.4946, 0.4963, 0.4979 | |
259 | }, | |
260 | { | |
261 | 0.0081, 0.0178, 0.0270, 0.0364, 0.0463, 0.0562, 0.0656, 0.0744, | |
262 | 0.0831, 0.0921, 0.1013, 0.1102, 0.1183, 0.1261, 0.1339, 0.1419, | |
263 | 0.1499, 0.1576, 0.1648, 0.1715, 0.1782, 0.1849, 0.1917, 0.1984, | |
264 | 0.2048, 0.2110, 0.2167, 0.2223, 0.2278, 0.2333, 0.2389, 0.2444, | |
265 | 0.2497, 0.2548, 0.2598, 0.2645, 0.2691, 0.2735, 0.2780, 0.2824, | |
266 | 0.2868, 0.2912, 0.2955, 0.2997, 0.3038, 0.3078, 0.3116, 0.3152, | |
267 | 0.3188, 0.3224, 0.3259, 0.3294, 0.3329, 0.3364, 0.3398, 0.3432, | |
268 | 0.3465, 0.3497, 0.3529, 0.3561, 0.3591, 0.3620, 0.3649, 0.3677, | |
269 | 0.3705, 0.3733, 0.3761, 0.3788, 0.3816, 0.3843, 0.3869, 0.3896, | |
270 | 0.3922, 0.3948, 0.3973, 0.3998, 0.4022, 0.4047, 0.4070, 0.4094, | |
271 | 0.4117, 0.4139, 0.4162, 0.4184, 0.4206, 0.4227, 0.4249, 0.4270, | |
272 | 0.4291, 0.4313, 0.4334, 0.4354, 0.4375, 0.4395, 0.4415, 0.4435, | |
273 | 0.4455, 0.4474, 0.4493, 0.4512, 0.4531, 0.4550, 0.4568, 0.4586, | |
274 | 0.4604, 0.4622, 0.4639, 0.4657, 0.4674, 0.4691, 0.4708, 0.4725, | |
275 | 0.4742, 0.4758, 0.4773, 0.4788, 0.4803, 0.4819, 0.4836, 0.4852, | |
276 | 0.4869, 0.4885, 0.4901, 0.4917, 0.4933, 0.4948, 0.4964, 0.4979 | |
277 | }, | |
278 | { | |
279 | 0.0085, 0.0189, 0.0288, 0.0389, 0.0497, 0.0603, 0.0699, 0.0792, | |
280 | 0.0887, 0.0985, 0.1082, 0.1170, 0.1253, 0.1336, 0.1421, 0.1505, | |
281 | 0.1587, 0.1662, 0.1733, 0.1803, 0.1874, 0.1945, 0.2014, 0.2081, | |
282 | 0.2143, 0.2201, 0.2259, 0.2316, 0.2374, 0.2431, 0.2487, 0.2541, | |
283 | 0.2593, 0.2642, 0.2689, 0.2735, 0.2781, 0.2826, 0.2872, 0.2917, | |
284 | 0.2961, 0.3003, 0.3045, 0.3086, 0.3125, 0.3162, 0.3198, 0.3235, | |
285 | 0.3270, 0.3306, 0.3342, 0.3377, 0.3411, 0.3446, 0.3479, 0.3511, | |
286 | 0.3543, 0.3575, 0.3605, 0.3634, 0.3663, 0.3691, 0.3720, 0.3748, | |
287 | 0.3775, 0.3803, 0.3830, 0.3857, 0.3884, 0.3911, 0.3937, 0.3962, | |
288 | 0.3987, 0.4012, 0.4036, 0.4060, 0.4084, 0.4107, 0.4129, 0.4152, | |
289 | 0.4174, 0.4196, 0.4218, 0.4239, 0.4261, 0.4282, 0.4303, 0.4324, | |
290 | 0.4344, 0.4365, 0.4385, 0.4405, 0.4425, 0.4445, 0.4464, 0.4483, | |
291 | 0.4502, 0.4521, 0.4539, 0.4558, 0.4576, 0.4593, 0.4611, 0.4629, | |
292 | 0.4646, 0.4663, 0.4680, 0.4697, 0.4714, 0.4730, 0.4747, 0.4759, | |
293 | 0.4769, 0.4780, 0.4790, 0.4800, 0.4811, 0.4827, 0.4843, 0.4859, | |
294 | 0.4874, 0.4889, 0.4905, 0.4920, 0.4935, 0.4950, 0.4965, 0.4979 | |
295 | } | |
296 | }; | |
297 | ||
298 | if (fLUT) delete [] fLUT; | |
299 | fLUT = new Float_t[fLUTbin]; | |
300 | ||
301 | for (Int_t iplan = 0; iplan < kNplan; iplan++) { | |
302 | for (Int_t ilut = 0; ilut < kNlut; ilut++) { | |
303 | fLUT[iplan*kNlut+ilut] = lut[iplan][ilut]; | |
304 | } | |
305 | } | |
306 | ||
307 | } | |
308 | ||
309 | //_____________________________________________________________________________ | |
310 | Double_t AliTRDRecParam::LUTposition(Int_t iplane, Double_t ampL, Double_t ampC, Double_t ampR) const | |
311 | { | |
312 | // | |
313 | // Calculates the cluster position using the lookup table. | |
314 | // Method provided by Bogdan Vulpescu. | |
315 | // | |
316 | ||
317 | const Int_t kNlut = 128; | |
318 | ||
319 | Double_t pos; | |
320 | Double_t x = 0.0; | |
321 | Double_t xmin; | |
322 | Double_t xmax; | |
323 | Double_t xwid; | |
324 | ||
325 | Int_t side = 0; | |
326 | Int_t ix; | |
327 | ||
328 | Double_t xMin[kNplan] = { 0.006492, 0.006377, 0.006258, 0.006144, 0.006030, 0.005980 }; | |
329 | Double_t xMax[kNplan] = { 0.960351, 0.965870, 0.970445, 0.974352, 0.977667, 0.996101 }; | |
330 | ||
331 | if (ampL > ampR) { | |
332 | x = (ampL - ampR) / ampC; | |
333 | side = -1; | |
334 | } | |
335 | else if (ampL < ampR) { | |
336 | x = (ampR - ampL) / ampC; | |
337 | side = +1; | |
338 | } | |
339 | ||
340 | if (ampL != ampR) { | |
341 | ||
342 | xmin = xMin[iplane] + 0.000005; | |
343 | xmax = xMax[iplane] - 0.000005; | |
344 | xwid = (xmax - xmin) / 127.0; | |
345 | ||
346 | if (x < xmin) { | |
347 | pos = 0.0000; | |
348 | } | |
349 | else if (x > xmax) { | |
350 | pos = side * 0.5000; | |
351 | } | |
352 | else { | |
353 | ix = (Int_t) ((x - xmin) / xwid); | |
354 | pos = side * fLUT[iplane*kNlut+ix]; | |
355 | } | |
356 | ||
357 | } | |
358 | else { | |
359 | ||
360 | pos = 0.0; | |
361 | ||
362 | } | |
363 | ||
364 | return pos; | |
365 | } | |
366 |