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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 | // // | |
4d011d8f | 22 | // Request an instance with AliTRDRecParam::Instance() // |
3551db50 | 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 __________________________________________________ | |
3bc9d03e | 35 | AliTRDRecParam* AliTRDRecParam::Instance() |
3551db50 | 36 | { |
37 | // | |
38 | // Singleton implementation | |
39 | // Returns an instance of this class, it is created if neccessary | |
40 | // | |
41 | ||
3bc9d03e | 42 | if (fgTerminated != kFALSE) { |
3551db50 | 43 | return 0; |
3bc9d03e | 44 | } |
3551db50 | 45 | |
3bc9d03e | 46 | if (fgInstance == 0) { |
3551db50 | 47 | fgInstance = new AliTRDRecParam(); |
3bc9d03e | 48 | } |
49 | ||
3551db50 | 50 | return fgInstance; |
3bc9d03e | 51 | |
3551db50 | 52 | } |
53 | ||
3bc9d03e | 54 | //_____________________________________________________________________________ |
3551db50 | 55 | void AliTRDRecParam::Terminate() |
56 | { | |
57 | // | |
58 | // Singleton implementation | |
3bc9d03e | 59 | // Deletes the instance of this class and sets the terminated flag, |
60 | // instances cannot be requested anymore | |
3551db50 | 61 | // This function can be called several times. |
62 | // | |
63 | ||
64 | fgTerminated = kTRUE; | |
65 | ||
3bc9d03e | 66 | if (fgInstance != 0) { |
3551db50 | 67 | delete fgInstance; |
68 | fgInstance = 0; | |
69 | } | |
3bc9d03e | 70 | |
3551db50 | 71 | } |
72 | ||
73 | //_____________________________________________________________________________ | |
74 | AliTRDRecParam::AliTRDRecParam() | |
3bc9d03e | 75 | :TObject() |
76 | ,fClusMaxThresh(0) | |
77 | ,fClusSigThresh(0) | |
78 | ,fLUTOn(kFALSE) | |
79 | ,fLUTbin(0) | |
80 | ,fLUT(0) | |
81 | ,fTCOn(kFALSE) | |
82 | ,fTCnexp(0) | |
3551db50 | 83 | { |
84 | // | |
3bc9d03e | 85 | // Constructor |
3551db50 | 86 | // |
3bc9d03e | 87 | |
3551db50 | 88 | Init(); |
3bc9d03e | 89 | |
ab0a4106 | 90 | } |
3551db50 | 91 | |
92 | //_____________________________________________________________________________ | |
93 | AliTRDRecParam::~AliTRDRecParam() | |
94 | { | |
95 | // | |
3bc9d03e | 96 | // Destructor |
3551db50 | 97 | // |
98 | ||
99 | if (fLUT) { | |
100 | delete [] fLUT; | |
3bc9d03e | 101 | fLUT = 0; |
3551db50 | 102 | } |
3bc9d03e | 103 | |
ab0a4106 | 104 | } |
3551db50 | 105 | |
106 | //_____________________________________________________________________________ | |
3bc9d03e | 107 | AliTRDRecParam::AliTRDRecParam(const AliTRDRecParam &p) |
108 | :TObject(p) | |
109 | ,fClusMaxThresh(p.fClusMaxThresh) | |
110 | ,fClusSigThresh(p.fClusSigThresh) | |
111 | ,fLUTOn(p.fLUTOn) | |
112 | ,fLUTbin(p.fLUTbin) | |
113 | ,fLUT(0) | |
114 | ,fTCOn(p.fTCOn) | |
115 | ,fTCnexp(p.fTCnexp) | |
3551db50 | 116 | { |
117 | // | |
3bc9d03e | 118 | // Copy constructor |
3551db50 | 119 | // |
120 | ||
3bc9d03e | 121 | if (((AliTRDRecParam &) p).fLUT) { |
122 | delete [] ((AliTRDRecParam &) p).fLUT; | |
123 | } | |
124 | ((AliTRDRecParam &) p).fLUT = new Float_t[fLUTbin]; | |
125 | for (Int_t iBin = 0; iBin < fLUTbin; iBin++) { | |
126 | ((AliTRDRecParam &) p).fLUT[iBin] = fLUT[iBin]; | |
127 | } | |
3551db50 | 128 | |
3bc9d03e | 129 | } |
3551db50 | 130 | |
131 | //_____________________________________________________________________________ | |
132 | AliTRDRecParam &AliTRDRecParam::operator=(const AliTRDRecParam &p) | |
133 | { | |
134 | // | |
135 | // Assignment operator | |
136 | // | |
137 | ||
4d011d8f | 138 | if (this != &p) { |
139 | ((AliTRDRecParam &) p).Copy(*this); | |
140 | } | |
3bc9d03e | 141 | |
3551db50 | 142 | return *this; |
3bc9d03e | 143 | |
3551db50 | 144 | } |
145 | ||
146 | //_____________________________________________________________________________ | |
147 | void AliTRDRecParam::Copy(TObject &p) const | |
148 | { | |
149 | // | |
150 | // Copy function | |
151 | // | |
152 | ||
153 | AliTRDRecParam* target = dynamic_cast<AliTRDRecParam*> (&p); | |
3bc9d03e | 154 | if (!target) { |
3551db50 | 155 | return; |
3bc9d03e | 156 | } |
157 | ||
158 | target->fLUTOn = fLUTOn; | |
159 | target->fLUTbin = fLUTbin; | |
160 | ||
161 | target->fClusMaxThresh = fClusMaxThresh; | |
162 | target->fClusSigThresh = fClusSigThresh; | |
3551db50 | 163 | |
3bc9d03e | 164 | target->fTCOn = fTCOn; |
165 | target->fTCnexp = fTCnexp; | |
166 | ||
167 | if (target->fLUT) { | |
168 | delete [] target->fLUT; | |
169 | } | |
170 | target->fLUT = new Float_t[fLUTbin]; | |
3551db50 | 171 | for (Int_t iBin = 0; iBin < fLUTbin; iBin++) { |
3bc9d03e | 172 | target->fLUT[iBin] = fLUT[iBin]; |
3551db50 | 173 | } |
a305677e | 174 | |
3551db50 | 175 | } |
176 | ||
177 | //_____________________________________________________________________________ | |
178 | void AliTRDRecParam::Init() | |
179 | { | |
180 | // | |
3bc9d03e | 181 | // Constructor helper |
3551db50 | 182 | // |
183 | ||
184 | // The default parameter for the clustering | |
6493a90f | 185 | fClusMaxThresh = 4.5; |
186 | fClusSigThresh = 3.5; | |
3551db50 | 187 | |
188 | // Use the LUT | |
189 | fLUTOn = kTRUE; | |
190 | ||
191 | // Create the LUT | |
192 | FillLUT(); | |
a305677e | 193 | |
194 | // The tail cancelation | |
3bc9d03e | 195 | fTCOn = kTRUE; |
11dc3a9e | 196 | |
a305677e | 197 | // The number of exponentials |
3bc9d03e | 198 | fTCnexp = 1; |
a305677e | 199 | |
3551db50 | 200 | } |
201 | ||
202 | //_____________________________________________________________________________ | |
203 | void AliTRDRecParam::FillLUT() | |
204 | { | |
205 | // | |
206 | // Create the LUT | |
207 | // | |
208 | ||
3bc9d03e | 209 | const Int_t kNlut = 128; |
3551db50 | 210 | |
211 | fLUTbin = kNplan * kNlut; | |
212 | ||
213 | // The lookup table from Bogdan | |
214 | Float_t lut[kNplan][kNlut] = { | |
215 | { | |
216 | 0.0070, 0.0150, 0.0224, 0.0298, 0.0374, 0.0454, 0.0533, 0.0611, | |
217 | 0.0684, 0.0755, 0.0827, 0.0900, 0.0975, 0.1049, 0.1120, 0.1187, | |
218 | 0.1253, 0.1318, 0.1385, 0.1453, 0.1519, 0.1584, 0.1646, 0.1704, | |
219 | 0.1762, 0.1821, 0.1879, 0.1938, 0.1996, 0.2053, 0.2108, 0.2160, | |
220 | 0.2210, 0.2260, 0.2310, 0.2361, 0.2411, 0.2461, 0.2509, 0.2557, | |
221 | 0.2602, 0.2646, 0.2689, 0.2732, 0.2774, 0.2816, 0.2859, 0.2901, | |
222 | 0.2942, 0.2983, 0.3022, 0.3061, 0.3099, 0.3136, 0.3172, 0.3207, | |
223 | 0.3242, 0.3278, 0.3312, 0.3347, 0.3382, 0.3416, 0.3450, 0.3483, | |
224 | 0.3515, 0.3547, 0.3579, 0.3609, 0.3639, 0.3669, 0.3698, 0.3727, | |
225 | 0.3756, 0.3785, 0.3813, 0.3842, 0.3870, 0.3898, 0.3926, 0.3952, | |
226 | 0.3979, 0.4005, 0.4032, 0.4057, 0.4082, 0.4108, 0.4132, 0.4157, | |
227 | 0.4181, 0.4205, 0.4228, 0.4252, 0.4275, 0.4299, 0.4322, 0.4345, | |
228 | 0.4367, 0.4390, 0.4412, 0.4434, 0.4456, 0.4478, 0.4499, 0.4520, | |
229 | 0.4541, 0.4562, 0.4583, 0.4603, 0.4623, 0.4643, 0.4663, 0.4683, | |
230 | 0.4702, 0.4722, 0.4741, 0.4758, 0.4774, 0.4790, 0.4805, 0.4824, | |
231 | 0.4844, 0.4863, 0.4883, 0.4902, 0.4921, 0.4940, 0.4959, 0.4978 | |
232 | }, | |
233 | { | |
234 | 0.0072, 0.0156, 0.0235, 0.0313, 0.0394, 0.0478, 0.0561, 0.0642, | |
235 | 0.0718, 0.0792, 0.0868, 0.0947, 0.1025, 0.1101, 0.1172, 0.1241, | |
236 | 0.1309, 0.1378, 0.1449, 0.1518, 0.1586, 0.1650, 0.1710, 0.1770, | |
237 | 0.1830, 0.1891, 0.1952, 0.2011, 0.2070, 0.2125, 0.2177, 0.2229, | |
238 | 0.2280, 0.2332, 0.2383, 0.2435, 0.2484, 0.2533, 0.2581, 0.2627, | |
239 | 0.2670, 0.2714, 0.2757, 0.2799, 0.2842, 0.2884, 0.2927, 0.2968, | |
240 | 0.3008, 0.3048, 0.3086, 0.3123, 0.3159, 0.3195, 0.3231, 0.3266, | |
241 | 0.3301, 0.3335, 0.3370, 0.3404, 0.3438, 0.3471, 0.3504, 0.3536, | |
242 | 0.3567, 0.3598, 0.3628, 0.3657, 0.3686, 0.3715, 0.3744, 0.3772, | |
243 | 0.3800, 0.3828, 0.3856, 0.3884, 0.3911, 0.3938, 0.3965, 0.3991, | |
244 | 0.4016, 0.4042, 0.4067, 0.4092, 0.4116, 0.4140, 0.4164, 0.4187, | |
245 | 0.4211, 0.4234, 0.4257, 0.4280, 0.4302, 0.4325, 0.4347, 0.4369, | |
246 | 0.4391, 0.4413, 0.4434, 0.4456, 0.4477, 0.4497, 0.4518, 0.4538, | |
247 | 0.4558, 0.4578, 0.4598, 0.4618, 0.4637, 0.4656, 0.4675, 0.4694, | |
248 | 0.4713, 0.4732, 0.4750, 0.4766, 0.4781, 0.4797, 0.4813, 0.4832, | |
249 | 0.4851, 0.4870, 0.4888, 0.4906, 0.4925, 0.4942, 0.4960, 0.4978 | |
250 | }, | |
251 | { | |
252 | 0.0075, 0.0163, 0.0246, 0.0328, 0.0415, 0.0504, 0.0592, 0.0674, | |
253 | 0.0753, 0.0832, 0.0914, 0.0996, 0.1077, 0.1154, 0.1225, 0.1296, | |
254 | 0.1369, 0.1442, 0.1515, 0.1585, 0.1652, 0.1714, 0.1776, 0.1839, | |
255 | 0.1902, 0.1965, 0.2025, 0.2085, 0.2141, 0.2194, 0.2247, 0.2299, | |
256 | 0.2352, 0.2405, 0.2457, 0.2507, 0.2557, 0.2604, 0.2649, 0.2693, | |
257 | 0.2737, 0.2780, 0.2823, 0.2867, 0.2909, 0.2951, 0.2992, 0.3033, | |
258 | 0.3072, 0.3110, 0.3146, 0.3182, 0.3218, 0.3253, 0.3288, 0.3323, | |
259 | 0.3357, 0.3392, 0.3426, 0.3459, 0.3492, 0.3524, 0.3555, 0.3586, | |
260 | 0.3616, 0.3645, 0.3674, 0.3703, 0.3731, 0.3759, 0.3787, 0.3815, | |
261 | 0.3843, 0.3870, 0.3897, 0.3925, 0.3950, 0.3976, 0.4002, 0.4027, | |
262 | 0.4052, 0.4076, 0.4101, 0.4124, 0.4148, 0.4171, 0.4194, 0.4217, | |
263 | 0.4239, 0.4262, 0.4284, 0.4306, 0.4328, 0.4350, 0.4371, 0.4393, | |
264 | 0.4414, 0.4435, 0.4455, 0.4476, 0.4496, 0.4516, 0.4536, 0.4555, | |
265 | 0.4575, 0.4594, 0.4613, 0.4632, 0.4650, 0.4669, 0.4687, 0.4705, | |
266 | 0.4723, 0.4741, 0.4758, 0.4773, 0.4789, 0.4804, 0.4821, 0.4839, | |
267 | 0.4857, 0.4875, 0.4893, 0.4910, 0.4928, 0.4945, 0.4961, 0.4978 | |
268 | }, | |
269 | { | |
270 | 0.0078, 0.0171, 0.0258, 0.0345, 0.0438, 0.0532, 0.0624, 0.0708, | |
271 | 0.0791, 0.0875, 0.0962, 0.1048, 0.1130, 0.1206, 0.1281, 0.1356, | |
272 | 0.1432, 0.1508, 0.1582, 0.1651, 0.1716, 0.1780, 0.1845, 0.1910, | |
273 | 0.1975, 0.2038, 0.2099, 0.2155, 0.2210, 0.2263, 0.2317, 0.2371, | |
274 | 0.2425, 0.2477, 0.2528, 0.2578, 0.2626, 0.2671, 0.2715, 0.2759, | |
275 | 0.2803, 0.2846, 0.2890, 0.2933, 0.2975, 0.3016, 0.3056, 0.3095, | |
276 | 0.3132, 0.3168, 0.3204, 0.3239, 0.3274, 0.3309, 0.3344, 0.3378, | |
277 | 0.3412, 0.3446, 0.3479, 0.3511, 0.3543, 0.3574, 0.3603, 0.3633, | |
278 | 0.3662, 0.3690, 0.3718, 0.3747, 0.3774, 0.3802, 0.3829, 0.3857, | |
279 | 0.3883, 0.3910, 0.3936, 0.3962, 0.3987, 0.4012, 0.4037, 0.4061, | |
280 | 0.4085, 0.4109, 0.4132, 0.4155, 0.4177, 0.4200, 0.4222, 0.4244, | |
281 | 0.4266, 0.4288, 0.4309, 0.4331, 0.4352, 0.4373, 0.4394, 0.4414, | |
282 | 0.4435, 0.4455, 0.4475, 0.4494, 0.4514, 0.4533, 0.4552, 0.4571, | |
283 | 0.4590, 0.4608, 0.4626, 0.4645, 0.4662, 0.4680, 0.4698, 0.4715, | |
284 | 0.4733, 0.4750, 0.4766, 0.4781, 0.4796, 0.4812, 0.4829, 0.4846, | |
285 | 0.4863, 0.4880, 0.4897, 0.4914, 0.4930, 0.4946, 0.4963, 0.4979 | |
286 | }, | |
287 | { | |
288 | 0.0081, 0.0178, 0.0270, 0.0364, 0.0463, 0.0562, 0.0656, 0.0744, | |
289 | 0.0831, 0.0921, 0.1013, 0.1102, 0.1183, 0.1261, 0.1339, 0.1419, | |
290 | 0.1499, 0.1576, 0.1648, 0.1715, 0.1782, 0.1849, 0.1917, 0.1984, | |
291 | 0.2048, 0.2110, 0.2167, 0.2223, 0.2278, 0.2333, 0.2389, 0.2444, | |
292 | 0.2497, 0.2548, 0.2598, 0.2645, 0.2691, 0.2735, 0.2780, 0.2824, | |
293 | 0.2868, 0.2912, 0.2955, 0.2997, 0.3038, 0.3078, 0.3116, 0.3152, | |
294 | 0.3188, 0.3224, 0.3259, 0.3294, 0.3329, 0.3364, 0.3398, 0.3432, | |
295 | 0.3465, 0.3497, 0.3529, 0.3561, 0.3591, 0.3620, 0.3649, 0.3677, | |
296 | 0.3705, 0.3733, 0.3761, 0.3788, 0.3816, 0.3843, 0.3869, 0.3896, | |
297 | 0.3922, 0.3948, 0.3973, 0.3998, 0.4022, 0.4047, 0.4070, 0.4094, | |
298 | 0.4117, 0.4139, 0.4162, 0.4184, 0.4206, 0.4227, 0.4249, 0.4270, | |
299 | 0.4291, 0.4313, 0.4334, 0.4354, 0.4375, 0.4395, 0.4415, 0.4435, | |
300 | 0.4455, 0.4474, 0.4493, 0.4512, 0.4531, 0.4550, 0.4568, 0.4586, | |
301 | 0.4604, 0.4622, 0.4639, 0.4657, 0.4674, 0.4691, 0.4708, 0.4725, | |
302 | 0.4742, 0.4758, 0.4773, 0.4788, 0.4803, 0.4819, 0.4836, 0.4852, | |
303 | 0.4869, 0.4885, 0.4901, 0.4917, 0.4933, 0.4948, 0.4964, 0.4979 | |
304 | }, | |
305 | { | |
306 | 0.0085, 0.0189, 0.0288, 0.0389, 0.0497, 0.0603, 0.0699, 0.0792, | |
307 | 0.0887, 0.0985, 0.1082, 0.1170, 0.1253, 0.1336, 0.1421, 0.1505, | |
308 | 0.1587, 0.1662, 0.1733, 0.1803, 0.1874, 0.1945, 0.2014, 0.2081, | |
309 | 0.2143, 0.2201, 0.2259, 0.2316, 0.2374, 0.2431, 0.2487, 0.2541, | |
310 | 0.2593, 0.2642, 0.2689, 0.2735, 0.2781, 0.2826, 0.2872, 0.2917, | |
311 | 0.2961, 0.3003, 0.3045, 0.3086, 0.3125, 0.3162, 0.3198, 0.3235, | |
312 | 0.3270, 0.3306, 0.3342, 0.3377, 0.3411, 0.3446, 0.3479, 0.3511, | |
313 | 0.3543, 0.3575, 0.3605, 0.3634, 0.3663, 0.3691, 0.3720, 0.3748, | |
314 | 0.3775, 0.3803, 0.3830, 0.3857, 0.3884, 0.3911, 0.3937, 0.3962, | |
315 | 0.3987, 0.4012, 0.4036, 0.4060, 0.4084, 0.4107, 0.4129, 0.4152, | |
316 | 0.4174, 0.4196, 0.4218, 0.4239, 0.4261, 0.4282, 0.4303, 0.4324, | |
317 | 0.4344, 0.4365, 0.4385, 0.4405, 0.4425, 0.4445, 0.4464, 0.4483, | |
318 | 0.4502, 0.4521, 0.4539, 0.4558, 0.4576, 0.4593, 0.4611, 0.4629, | |
319 | 0.4646, 0.4663, 0.4680, 0.4697, 0.4714, 0.4730, 0.4747, 0.4759, | |
320 | 0.4769, 0.4780, 0.4790, 0.4800, 0.4811, 0.4827, 0.4843, 0.4859, | |
321 | 0.4874, 0.4889, 0.4905, 0.4920, 0.4935, 0.4950, 0.4965, 0.4979 | |
322 | } | |
323 | }; | |
324 | ||
3bc9d03e | 325 | if (fLUT) { |
326 | delete [] fLUT; | |
327 | } | |
3551db50 | 328 | fLUT = new Float_t[fLUTbin]; |
329 | ||
330 | for (Int_t iplan = 0; iplan < kNplan; iplan++) { | |
3bc9d03e | 331 | for (Int_t ilut = 0; ilut < kNlut; ilut++ ) { |
3551db50 | 332 | fLUT[iplan*kNlut+ilut] = lut[iplan][ilut]; |
333 | } | |
334 | } | |
335 | ||
336 | } | |
337 | ||
338 | //_____________________________________________________________________________ | |
3bc9d03e | 339 | Double_t AliTRDRecParam::LUTposition(Int_t iplane, Double_t ampL |
340 | , Double_t ampC, Double_t ampR) const | |
3551db50 | 341 | { |
342 | // | |
343 | // Calculates the cluster position using the lookup table. | |
344 | // Method provided by Bogdan Vulpescu. | |
345 | // | |
346 | ||
3bc9d03e | 347 | const Int_t kNlut = 128; |
3551db50 | 348 | |
349 | Double_t pos; | |
3bc9d03e | 350 | Double_t x = 0.0; |
3551db50 | 351 | Double_t xmin; |
352 | Double_t xmax; | |
353 | Double_t xwid; | |
354 | ||
355 | Int_t side = 0; | |
356 | Int_t ix; | |
357 | ||
3bc9d03e | 358 | Double_t xMin[kNplan] = { 0.006492, 0.006377, 0.006258 |
359 | , 0.006144, 0.006030, 0.005980 }; | |
360 | Double_t xMax[kNplan] = { 0.960351, 0.965870, 0.970445 | |
361 | , 0.974352, 0.977667, 0.996101 }; | |
3551db50 | 362 | |
363 | if (ampL > ampR) { | |
364 | x = (ampL - ampR) / ampC; | |
365 | side = -1; | |
366 | } | |
367 | else if (ampL < ampR) { | |
368 | x = (ampR - ampL) / ampC; | |
369 | side = +1; | |
370 | } | |
371 | ||
372 | if (ampL != ampR) { | |
373 | ||
374 | xmin = xMin[iplane] + 0.000005; | |
375 | xmax = xMax[iplane] - 0.000005; | |
376 | xwid = (xmax - xmin) / 127.0; | |
377 | ||
378 | if (x < xmin) { | |
379 | pos = 0.0000; | |
380 | } | |
381 | else if (x > xmax) { | |
382 | pos = side * 0.5000; | |
383 | } | |
384 | else { | |
385 | ix = (Int_t) ((x - xmin) / xwid); | |
386 | pos = side * fLUT[iplane*kNlut+ix]; | |
387 | } | |
388 | ||
389 | } | |
390 | else { | |
391 | ||
392 | pos = 0.0; | |
393 | ||
394 | } | |
395 | ||
396 | return pos; | |
3551db50 | 397 | |
3bc9d03e | 398 | } |