git://git.uio.no / u / mrichter / AliRoot.git / blame
| Commit | Line | Data |
|---|---|---|
| 7984e5f7 | 1 | // |
| 2 | // Utilities used in the forward multiplcity analysis | |
| 3 | // | |
| 4 | // | |
| 7e4038b5 | 5 | #include "AliForwardUtil.h" |
| 1ff25622 | 6 | //#include <ARVersion.h> |
| 9d99b0dd | 7 | #include <AliAnalysisManager.h> |
| 8 | #include "AliAODForwardMult.h" | |
| 9 | #include <AliLog.h> | |
| 10 | #include <AliInputEventHandler.h> | |
| 290052e7 | 11 | #include <AliAODInputHandler.h> |
| 12 | #include <AliAODHandler.h> | |
| 13 | #include <AliAODEvent.h> | |
| 9d99b0dd | 14 | #include <AliESDEvent.h> |
| 290052e7 | 15 | #include <AliAnalysisTaskSE.h> |
| 9d99b0dd | 16 | #include <AliPhysicsSelection.h> |
| 17 | #include <AliTriggerAnalysis.h> | |
| 18 | #include <AliMultiplicity.h> | |
| 241cca4d | 19 | #include <TParameter.h> |
| 7e4038b5 | 20 | #include <TH2D.h> |
| 9d99b0dd | 21 | #include <TH1I.h> |
| 7f759bb7 | 22 | #include <TF1.h> |
| 23 | #include <TFitResult.h> | |
| 7e4038b5 | 24 | #include <TMath.h> |
| 7f759bb7 | 25 | #include <TError.h> |
| f53fb4f6 | 26 | #include <TROOT.h> |
| a19faec0 | 27 | #define FIT_OPTIONS "RNS" |
| 7f759bb7 | 28 | |
| 1ff25622 | 29 | //==================================================================== |
| 30 | ULong_t AliForwardUtil::AliROOTRevision() | |
| 31 | { | |
| 32 | #ifdef ALIROOT_SVN_REVISION | |
| 33 | return ALIROOT_SVN_REVISION; | |
| 77f97e3f CHC |
34 | #elif defined(ALIROOT_REVISION) |
| 35 | static ULong_t ret = 0; | |
| 36 | if (ret != 0) return ret; | |
| 37 | ||
| 38 | // Select first 32bits of the 40byte long check-sum | |
| 39 | TString rev(ALIROOT_REVISION, 8); | |
| 40 | for (ULong_t i = 0; i < 8; i++) { | |
| 41 | ULong_t p = 0; | |
| 42 | switch (rev[i]) { | |
| 43 | case '0': p = 0; break; | |
| 44 | case '1': p = 1; break; | |
| 45 | case '2': p = 2; break; | |
| 46 | case '3': p = 3; break; | |
| 47 | case '4': p = 4; break; | |
| 48 | case '5': p = 5; break; | |
| 49 | case '6': p = 6; break; | |
| 50 | case '7': p = 7; break; | |
| 51 | case '8': p = 8; break; | |
| 52 | case '9': p = 9; break; | |
| 53 | case 'a': case 'A': p = 10; break; | |
| 54 | case 'b': case 'B': p = 11; break; | |
| 55 | case 'c': case 'C': p = 12; break; | |
| 56 | case 'd': case 'D': p = 13; break; | |
| 57 | case 'e': case 'E': p = 14; break; | |
| 58 | case 'f': case 'F': p = 15; break; | |
| 59 | } | |
| 60 | ret |= (p << (32-4*(i+1))); | |
| 61 | } | |
| 62 | return ret; | |
| 7095962e CHC |
63 | #else |
| 64 | return 0; | |
| 1ff25622 | 65 | #endif |
| 66 | } | |
| 67 | //____________________________________________________________________ | |
| 68 | ULong_t AliForwardUtil::AliROOTBranch() | |
| 69 | { | |
| 93a63fe1 | 70 | // Do something here when we switch to git - sigh! |
| 77f97e3f CHC |
71 | #if !defined(ALIROOT_SVN_BRANCH) && !defined(ALIROOT_BRANCH) |
| 72 | return 0; | |
| 73 | #endif | |
| 1ff25622 | 74 | static ULong_t ret = 0; |
| 75 | if (ret != 0) return ret; | |
| 77f97e3f CHC |
76 | TString str; |
| 77 | TString top; | |
| 78 | #ifdef ALIROOT_SVN_BRANCH | |
| 79 | str = ALIROOT_SVN_BRANCH; | |
| 80 | top = "trunk"; | |
| 81 | #elif defined(ALIROOT_BRANCH) | |
| 82 | str = ALIROOT_BRANCH; | |
| 83 | top = "master"; | |
| 84 | #endif | |
| 1ff25622 | 85 | if (str[0] == 'v') str.Remove(0,1); |
| 77f97e3f | 86 | if (str.EqualTo(top)) return ret = 0xFFFFFFFF; |
| 1ff25622 | 87 | |
| 88 | TObjArray* tokens = str.Tokenize("-"); | |
| 89 | TObjString* pMajor = static_cast<TObjString*>(tokens->At(0)); | |
| 90 | TObjString* pMinor = static_cast<TObjString*>(tokens->At(1)); | |
| 1094d5dc | 91 | TObjString* pRelea = (tokens->GetEntries() > 2 ? |
| 92 | static_cast<TObjString*>(tokens->At(2)) : 0); | |
| 1ff25622 | 93 | TObjString* pAn = (tokens->GetEntries() > 3 ? |
| 94 | static_cast<TObjString*>(tokens->At(3)) : 0); | |
| 95 | TString sMajor = pMajor->String().Strip(TString::kLeading, '0'); | |
| 96 | TString sMinor = pMinor->String().Strip(TString::kLeading, '0'); | |
| 1094d5dc | 97 | TString sRelea = (pRelea ? pRelea->String() : ""); |
| 98 | sRelea = sRelea.Strip(TString::kLeading, '0'); | |
| 99 | ||
| 1ff25622 | 100 | ret = (((sMajor.Atoi() & 0xFF) << 12) | |
| 101 | ((sMinor.Atoi() & 0xFF) << 8) | | |
| 102 | ((sRelea.Atoi() & 0xFF) << 4) | | |
| 103 | (pAn ? 0xAA : 0)); | |
| 104 | ||
| 105 | return ret; | |
| 1ff25622 | 106 | } |
| 107 | ||
| 0bd4b00f | 108 | //==================================================================== |
| 109 | UShort_t | |
| 110 | AliForwardUtil::ParseCollisionSystem(const char* sys) | |
| 111 | { | |
| 7984e5f7 | 112 | // |
| 113 | // Parse a collision system spec given in a string. Known values are | |
| 114 | // | |
| 0151a6c6 | 115 | // - "ppb", "p-pb", "pa", "p-a" which returns kPPb |
| 116 | // - "pp", "p-p" which returns kPP | |
| 117 | // - "PbPb", "Pb-Pb", "A-A", which returns kPbPb | |
| 7984e5f7 | 118 | // - Everything else gives kUnknown |
| 119 | // | |
| 120 | // Parameters: | |
| 121 | // sys Collision system spec | |
| 122 | // | |
| 123 | // Return: | |
| 124 | // Collision system id | |
| 125 | // | |
| 0bd4b00f | 126 | TString s(sys); |
| 127 | s.ToLower(); | |
| 0151a6c6 | 128 | // we do pA first to avoid pp catch on ppb string (AH) |
| 129 | if (s.Contains("p-pb") || s.Contains("ppb")) return AliForwardUtil::kPPb; | |
| 130 | if (s.Contains("p-a") || s.Contains("pa")) return AliForwardUtil::kPPb; | |
| d4d486f8 | 131 | if (s.Contains("a-p") || s.Contains("ap")) return AliForwardUtil::kPPb; |
| 0151a6c6 | 132 | if (s.Contains("p-p") || s.Contains("pp")) return AliForwardUtil::kPP; |
| 133 | if (s.Contains("pb-pb") || s.Contains("pbpb")) return AliForwardUtil::kPbPb; | |
| 134 | if (s.Contains("a-a") || s.Contains("aa")) return AliForwardUtil::kPbPb; | |
| 0bd4b00f | 135 | return AliForwardUtil::kUnknown; |
| 136 | } | |
| 137 | //____________________________________________________________________ | |
| 138 | const char* | |
| 139 | AliForwardUtil::CollisionSystemString(UShort_t sys) | |
| 140 | { | |
| 7984e5f7 | 141 | // |
| 142 | // Get a string representation of the collision system | |
| 143 | // | |
| 144 | // Parameters: | |
| 145 | // sys Collision system | |
| 146 | // - kPP -> "pp" | |
| 147 | // - kPbPb -> "PbPb" | |
| 148 | // - anything else gives "unknown" | |
| 149 | // | |
| 150 | // Return: | |
| 151 | // String representation of the collision system | |
| 152 | // | |
| 0bd4b00f | 153 | switch (sys) { |
| 154 | case AliForwardUtil::kPP: return "pp"; | |
| 155 | case AliForwardUtil::kPbPb: return "PbPb"; | |
| 0151a6c6 | 156 | case AliForwardUtil::kPPb: return "pPb"; |
| 0bd4b00f | 157 | } |
| 158 | return "unknown"; | |
| 159 | } | |
| 38229ecd | 160 | //____________________________________________________________________ |
| 161 | Float_t | |
| 162 | AliForwardUtil::BeamRapidity(Float_t beam, UShort_t z, UShort_t a) | |
| 163 | { | |
| 164 | const Double_t pMass = 9.38271999999999995e-01; | |
| 165 | const Double_t nMass = 9.39564999999999984e-01; | |
| 166 | Double_t beamE = z * beam / 2; | |
| 167 | Double_t beamM = z * pMass + (a - z) * nMass; | |
| 168 | Double_t beamP = TMath::Sqrt(beamE * beamE - beamM * beamM); | |
| 169 | Double_t beamY = .5* TMath::Log((beamE+beamP) / (beamE-beamP)); | |
| 170 | return beamY; | |
| 171 | } | |
| 172 | //____________________________________________________________________ | |
| 173 | Float_t | |
| 174 | AliForwardUtil::CenterOfMassEnergy(Float_t beam, | |
| 175 | UShort_t z1, | |
| 176 | UShort_t a1, | |
| 177 | Short_t z2, | |
| 178 | Short_t a2) | |
| 179 | { | |
| 180 | // Calculate the center of mass energy given target/projectile | |
| 181 | // mass and charge numbers | |
| 182 | if (z2 < 0) z2 = z1; | |
| 183 | if (a2 < 0) a2 = a1; | |
| 184 | return TMath::Sqrt(Float_t(z1*z2)/a1/a2) * beam; | |
| 185 | } | |
| 186 | //____________________________________________________________________ | |
| 187 | Float_t | |
| 188 | AliForwardUtil::CenterOfMassRapidity(UShort_t z1, | |
| 189 | UShort_t a1, | |
| 190 | Short_t z2, | |
| 191 | Short_t a2) | |
| 192 | { | |
| 193 | // Calculate the center of mass rapidity (shift) given target/projectile | |
| 194 | // mass and charge numbers | |
| 195 | if (z2 < 0) z2 = z1; | |
| 196 | if (a2 < 0) a2 = a1; | |
| 197 | if (z2 == z1 && a2 == a1) return 0; | |
| 198 | return .5 * TMath::Log(Float_t(z1*a2)/z2/a1); | |
| 199 | } | |
| 200 | ||
| 4dcc6110 | 201 | namespace { |
| 202 | UShort_t CheckSNN(Float_t energy) | |
| 203 | { | |
| 204 | if (TMath::Abs(energy - 900.) < 10) return 900; | |
| 205 | if (TMath::Abs(energy - 2400.) < 10) return 2400; | |
| 206 | if (TMath::Abs(energy - 2760.) < 20) return 2760; | |
| 207 | if (TMath::Abs(energy - 4400.) < 10) return 4400; | |
| 208 | if (TMath::Abs(energy - 5022.) < 10) return 5023; | |
| 209 | if (TMath::Abs(energy - 5500.) < 40) return 5500; | |
| 210 | if (TMath::Abs(energy - 7000.) < 10) return 7000; | |
| 211 | if (TMath::Abs(energy - 8000.) < 10) return 8000; | |
| 212 | if (TMath::Abs(energy - 10000.) < 10) return 10000; | |
| 213 | if (TMath::Abs(energy - 14000.) < 10) return 14000; | |
| 214 | return 0; | |
| 215 | } | |
| 216 | } | |
| 0bd4b00f | 217 | //____________________________________________________________________ |
| 218 | UShort_t | |
| 38229ecd | 219 | AliForwardUtil::ParseCenterOfMassEnergy(UShort_t sys, Float_t beam) |
| 0bd4b00f | 220 | { |
| 7984e5f7 | 221 | // |
| 222 | // Parse the center of mass energy given as a float and return known | |
| 223 | // values as a unsigned integer | |
| 224 | // | |
| 225 | // Parameters: | |
| 38229ecd | 226 | // sys Collision system (needed for AA) |
| 227 | // beam Center of mass energy * total charge | |
| 7984e5f7 | 228 | // |
| 229 | // Return: | |
| 230 | // Center of mass energy per nucleon | |
| 231 | // | |
| 38229ecd | 232 | Float_t energy = beam; |
| cc83fca2 | 233 | // Below no longer needed apparently |
| 234 | // if (sys == AliForwardUtil::kPbPb) energy = energy / 208 * 82; | |
| 38229ecd | 235 | if (sys == AliForwardUtil::kPPb) |
| 236 | energy = CenterOfMassEnergy(beam, 82, 208, 1, 1); | |
| 8449e3e0 | 237 | else if (sys == AliForwardUtil::kPbPb) |
| 238 | energy = CenterOfMassEnergy(beam, 82, 208, 82, 208); | |
| 4dcc6110 | 239 | UShort_t ret = CheckSNN(energy); |
| 240 | if (ret > 1) return ret; | |
| 241 | if (sys == AliForwardUtil::kPbPb || sys == AliForwardUtil::kPPb) { | |
| 242 | ret = CheckSNN(beam); | |
| 243 | } | |
| 244 | return ret; | |
| 0bd4b00f | 245 | } |
| 246 | //____________________________________________________________________ | |
| 247 | const char* | |
| 248 | AliForwardUtil::CenterOfMassEnergyString(UShort_t cms) | |
| 249 | { | |
| 7984e5f7 | 250 | // |
| 251 | // Get a string representation of the center of mass energy per nuclean | |
| 252 | // | |
| 253 | // Parameters: | |
| 254 | // cms Center of mass energy per nucleon | |
| 255 | // | |
| 256 | // Return: | |
| 257 | // String representation of the center of mass energy per nuclean | |
| 258 | // | |
| 0bd4b00f | 259 | return Form("%04dGeV", cms); |
| 260 | } | |
| 261 | //____________________________________________________________________ | |
| 262 | Short_t | |
| 263 | AliForwardUtil::ParseMagneticField(Float_t v) | |
| 264 | { | |
| 7984e5f7 | 265 | // |
| 266 | // Parse the magnetic field (in kG) as given by a floating point number | |
| 267 | // | |
| 268 | // Parameters: | |
| 269 | // field Magnetic field in kG | |
| 270 | // | |
| 271 | // Return: | |
| 272 | // Short integer value of magnetic field in kG | |
| 273 | // | |
| 0bd4b00f | 274 | if (TMath::Abs(v - 5.) < 1 ) return +5; |
| 275 | if (TMath::Abs(v + 5.) < 1 ) return -5; | |
| 276 | if (TMath::Abs(v) < 1) return 0; | |
| 277 | return 999; | |
| 278 | } | |
| 279 | //____________________________________________________________________ | |
| 280 | const char* | |
| 281 | AliForwardUtil::MagneticFieldString(Short_t f) | |
| 282 | { | |
| 7984e5f7 | 283 | // |
| 284 | // Get a string representation of the magnetic field | |
| 285 | // | |
| 286 | // Parameters: | |
| 287 | // field Magnetic field in kG | |
| 288 | // | |
| 289 | // Return: | |
| 290 | // String representation of the magnetic field | |
| 291 | // | |
| 0bd4b00f | 292 | return Form("%01dkG", f); |
| 293 | } | |
| 290052e7 | 294 | //_____________________________________________________________________ |
| 295 | AliAODEvent* AliForwardUtil::GetAODEvent(AliAnalysisTaskSE* task) | |
| 296 | { | |
| 297 | // Check if AOD is the output event | |
| 576472c1 | 298 | if (!task) ::Fatal("GetAODEvent", "Null task given, cannot do that"); |
| 299 | ||
| 290052e7 | 300 | AliAODEvent* ret = task->AODEvent(); |
| 301 | if (ret) return ret; | |
| 302 | ||
| 303 | // Check if AOD is the input event | |
| 304 | ret = dynamic_cast<AliAODEvent*>(task->InputEvent()); | |
| 305 | if (!ret) ::Warning("GetAODEvent", "No AOD event found"); | |
| 306 | ||
| 307 | return ret; | |
| 308 | } | |
| 309 | //_____________________________________________________________________ | |
| 310 | UShort_t AliForwardUtil::CheckForAOD() | |
| 311 | { | |
| 312 | AliAnalysisManager* am = AliAnalysisManager::GetAnalysisManager(); | |
| 313 | if (dynamic_cast<AliAODInputHandler*>(am->GetInputEventHandler())) { | |
| 671df6c9 | 314 | // ::Info("CheckForAOD", "Found AOD Input handler"); |
| 290052e7 | 315 | return 1; |
| 316 | } | |
| 317 | if (dynamic_cast<AliAODHandler*>(am->GetOutputEventHandler())) { | |
| c8b1a7db | 318 | // ::Info("CheckForAOD", "Found AOD Output handler"); |
| 290052e7 | 319 | return 2; |
| 320 | } | |
| 321 | ||
| 322 | ::Warning("CheckForAOD", | |
| 323 | "Neither and input nor output AOD handler is specified"); | |
| 324 | return 0; | |
| 325 | } | |
| 326 | //_____________________________________________________________________ | |
| 327 | Bool_t AliForwardUtil::CheckForTask(const char* clsOrName, Bool_t cls) | |
| 328 | { | |
| 329 | AliAnalysisManager* am = AliAnalysisManager::GetAnalysisManager(); | |
| 330 | if (!cls) { | |
| 331 | AliAnalysisTask* t = am->GetTask(clsOrName); | |
| 332 | if (!t) { | |
| 333 | ::Warning("CheckForTask", "Task %s not found in manager", clsOrName); | |
| 334 | return false; | |
| 335 | } | |
| 336 | ::Info("CheckForTask", "Found task %s", clsOrName); | |
| 337 | return true; | |
| 338 | } | |
| 339 | TClass* dep = gROOT->GetClass(clsOrName); | |
| 340 | if (!dep) { | |
| 341 | ::Warning("CheckForTask", "Unknown class %s for needed task", clsOrName); | |
| 342 | return false; | |
| 343 | } | |
| 344 | TIter next(am->GetTasks()); | |
| 345 | TObject* o = 0; | |
| 346 | while ((o = next())) { | |
| 347 | if (o->IsA()->InheritsFrom(dep)) { | |
| 348 | ::Info("CheckForTask", "Found task of class %s: %s", | |
| 349 | clsOrName, o->GetName()); | |
| 350 | return true; | |
| 351 | } | |
| 352 | } | |
| 353 | ::Warning("CheckForTask", "No task of class %s was found", clsOrName); | |
| 354 | return false; | |
| 355 | } | |
| 356 | ||
| 241cca4d | 357 | //_____________________________________________________________________ |
| 358 | TObject* AliForwardUtil::MakeParameter(const Char_t* name, UShort_t value) | |
| 359 | { | |
| 360 | TParameter<int>* ret = new TParameter<int>(name, value); | |
| 8449e3e0 | 361 | ret->SetMergeMode('f'); |
| 241cca4d | 362 | ret->SetUniqueID(value); |
| 363 | return ret; | |
| 364 | } | |
| 365 | //_____________________________________________________________________ | |
| 366 | TObject* AliForwardUtil::MakeParameter(const Char_t* name, Int_t value) | |
| 367 | { | |
| 368 | TParameter<int>* ret = new TParameter<int>(name, value); | |
| 8449e3e0 | 369 | ret->SetMergeMode('f'); |
| 241cca4d | 370 | ret->SetUniqueID(value); |
| 371 | return ret; | |
| 372 | } | |
| 373 | //_____________________________________________________________________ | |
| 1ff25622 | 374 | TObject* AliForwardUtil::MakeParameter(const Char_t* name, ULong_t value) |
| 375 | { | |
| 376 | TParameter<Long_t>* ret = new TParameter<Long_t>(name, value); | |
| 8449e3e0 | 377 | ret->SetMergeMode('f'); |
| 1ff25622 | 378 | ret->SetUniqueID(value); |
| 379 | return ret; | |
| 380 | } | |
| 381 | //_____________________________________________________________________ | |
| 241cca4d | 382 | TObject* AliForwardUtil::MakeParameter(const Char_t* name, Double_t value) |
| 383 | { | |
| 384 | TParameter<double>* ret = new TParameter<double>(name, value); | |
| 1f7aa5c7 | 385 | // Float_t v = value; |
| 386 | // UInt_t* tmp = reinterpret_cast<UInt_t*>(&v); | |
| 8449e3e0 | 387 | ret->SetMergeMode('f'); |
| 1f7aa5c7 | 388 | // ret->SetUniqueID(*tmp); |
| 241cca4d | 389 | return ret; |
| 390 | } | |
| 391 | //_____________________________________________________________________ | |
| 392 | TObject* AliForwardUtil::MakeParameter(const Char_t* name, Bool_t value) | |
| 393 | { | |
| 394 | TParameter<bool>* ret = new TParameter<bool>(name, value); | |
| 8449e3e0 | 395 | ret->SetMergeMode('f'); |
| 241cca4d | 396 | ret->SetUniqueID(value); |
| 397 | return ret; | |
| 398 | } | |
| 399 | ||
| 400 | //_____________________________________________________________________ | |
| 401 | void AliForwardUtil::GetParameter(TObject* o, UShort_t& value) | |
| 402 | { | |
| 403 | if (!o) return; | |
| 1f7aa5c7 | 404 | TParameter<int>* p = static_cast<TParameter<int>*>(o); |
| e65b8b56 | 405 | if (p->TestBit(BIT(19))) |
| 1f7aa5c7 | 406 | value = p->GetVal(); |
| 407 | else | |
| 408 | value = o->GetUniqueID(); | |
| 241cca4d | 409 | } |
| 410 | //_____________________________________________________________________ | |
| 411 | void AliForwardUtil::GetParameter(TObject* o, Int_t& value) | |
| 412 | { | |
| 413 | if (!o) return; | |
| 1f7aa5c7 | 414 | TParameter<int>* p = static_cast<TParameter<int>*>(o); |
| e65b8b56 | 415 | if (p->TestBit(BIT(19))) |
| 1f7aa5c7 | 416 | value = p->GetVal(); |
| 417 | else | |
| 418 | value = o->GetUniqueID(); | |
| 241cca4d | 419 | } |
| 420 | //_____________________________________________________________________ | |
| 1ff25622 | 421 | void AliForwardUtil::GetParameter(TObject* o, ULong_t& value) |
| 422 | { | |
| 423 | if (!o) return; | |
| 1f7aa5c7 | 424 | TParameter<Long_t>* p = static_cast<TParameter<Long_t>*>(o); |
| e65b8b56 | 425 | if (p->TestBit(BIT(19))) |
| 1f7aa5c7 | 426 | value = p->GetVal(); |
| 427 | else | |
| 428 | value = o->GetUniqueID(); | |
| 1ff25622 | 429 | } |
| 430 | //_____________________________________________________________________ | |
| 241cca4d | 431 | void AliForwardUtil::GetParameter(TObject* o, Double_t& value) |
| 432 | { | |
| 433 | if (!o) return; | |
| 1f7aa5c7 | 434 | TParameter<double>* p = static_cast<TParameter<double>*>(o); |
| e65b8b56 | 435 | if (p->TestBit(BIT(19))) |
| 1f7aa5c7 | 436 | value = p->GetVal(); // o->GetUniqueID(); |
| 437 | else { | |
| 438 | UInt_t i = o->GetUniqueID(); | |
| 439 | Float_t v = *reinterpret_cast<Float_t*>(&i); | |
| 440 | value = v; | |
| 441 | } | |
| 241cca4d | 442 | } |
| 443 | //_____________________________________________________________________ | |
| 444 | void AliForwardUtil::GetParameter(TObject* o, Bool_t& value) | |
| 445 | { | |
| 446 | if (!o) return; | |
| 1f7aa5c7 | 447 | TParameter<bool>* p = static_cast<TParameter<bool>*>(o); |
| e65b8b56 | 448 | if (p->TestBit(BIT(19))) |
| 1f7aa5c7 | 449 | value = p->GetVal(); // o->GetUniqueID(); |
| 450 | else | |
| 451 | value = o->GetUniqueID(); | |
| 241cca4d | 452 | } |
| 290052e7 | 453 | |
| 1f7aa5c7 | 454 | #if 0 |
| 6f4a5c0d | 455 | //_____________________________________________________________________ |
| 5ca83fee | 456 | Double_t AliForwardUtil::GetStripR(Char_t ring, UShort_t strip) |
| 6f4a5c0d | 457 | { |
| 1f7aa5c7 | 458 | // Get max R of ring |
| 459 | // | |
| 460 | // Optimized version that has a cache | |
| 461 | static TArrayD inner; | |
| 462 | static TArrayD outer; | |
| 463 | if (inner.GetSize() <= 0 || outer.GetSize() <= 0) { | |
| 464 | const Double_t minR[] = { 4.5213, 15.4 }; | |
| 465 | const Double_t maxR[] = { 17.2, 28.0 }; | |
| 466 | const Int_t nStr[] = { 512, 256 }; | |
| 467 | for (Int_t q = 0; q < 2; q++) { | |
| 468 | TArrayD& a = (q == 0 ? inner : outer); | |
| 469 | a.Set(nStr[q]); | |
| 470 | ||
| 471 | for (Int_t it = 0; it < nStr[q]; it++) { | |
| 472 | Double_t rad = maxR[q] - minR[q]; | |
| 473 | Double_t segment = rad / nStr[q]; | |
| 474 | Double_t r = minR[q] + segment*strip; | |
| 475 | a[it] = r; | |
| 476 | } | |
| 477 | } | |
| 478 | } | |
| 479 | if (ring == 'I' || ring == 'i') return inner.At(strip); | |
| 480 | return outer.At(strip); | |
| 481 | } | |
| 482 | #else | |
| 483 | //_____________________________________________________________________ | |
| 484 | Double_t AliForwardUtil::GetStripR(Char_t ring, UShort_t strip) | |
| 485 | { | |
| 486 | // Get max R of ring | |
| 487 | // | |
| 488 | // New implementation has only one branch | |
| 489 | const Double_t minR[] = { 4.5213, 15.4 }; | |
| 490 | const Double_t maxR[] = { 17.2, 28.0 }; | |
| 491 | const Int_t nStr[] = { 512, 256 }; | |
| 492 | ||
| 493 | Int_t q = (ring == 'I' || ring == 'i') ? 0 : 1; | |
| 494 | Double_t rad = maxR[q] - minR[q]; | |
| 495 | Double_t segment = rad / nStr[q]; | |
| 496 | Double_t r = minR[q] + segment*strip; | |
| 6f4a5c0d | 497 | |
| 5ca83fee | 498 | return r; |
| 499 | } | |
| 1f7aa5c7 | 500 | #endif |
| 5ca83fee | 501 | |
| 1f7aa5c7 | 502 | #if 1 |
| 503 | //_____________________________________________________________________ | |
| 504 | Double_t AliForwardUtil::GetEtaFromStrip(UShort_t det, Char_t ring, | |
| 505 | UShort_t sec, UShort_t strip, | |
| 506 | Double_t zvtx) | |
| 507 | { | |
| 508 | // Calculate eta from strip with vertex (redundant with | |
| 509 | // AliESDFMD::Eta but support displaced vertices) | |
| 510 | // | |
| 511 | // Slightly more optimized version that uses less branching | |
| 512 | ||
| 513 | // Get R of the strip | |
| 514 | Double_t r = GetStripR(ring, strip); | |
| 515 | Int_t hybrid = sec / 2; | |
| 516 | Int_t q = (ring == 'I' || ring == 'i') ? 0 : 1; | |
| 517 | ||
| 518 | const Double_t zs[][2] = { { 320.266, -999999 }, | |
| 519 | { 83.666, 74.966 }, | |
| 520 | { -63.066, -74.966 } }; | |
| 521 | if (det > 3 || zs[det-1][q] == -999999) return -999999; | |
| 522 | ||
| 523 | Double_t z = zs[det-1][q]; | |
| 524 | if ((hybrid % 2) == 0) z -= .5; | |
| 525 | ||
| 526 | Double_t theta = TMath::ATan2(r,z-zvtx); | |
| 527 | Double_t eta = -1*TMath::Log(TMath::Tan(0.5*theta)); | |
| 528 | ||
| 529 | return eta; | |
| 530 | } | |
| 531 | #else | |
| 5ca83fee | 532 | //_____________________________________________________________________ |
| 533 | Double_t AliForwardUtil::GetEtaFromStrip(UShort_t det, Char_t ring, | |
| 534 | UShort_t sec, UShort_t strip, | |
| 535 | Double_t zvtx) | |
| 536 | { | |
| 537 | // Calculate eta from strip with vertex (redundant with | |
| 538 | // AliESDFMD::Eta but support displaced vertices) | |
| 6f4a5c0d | 539 | |
| 5ca83fee | 540 | //Get max R of ring |
| 541 | Double_t r = GetStripR(ring, strip); | |
| 542 | Int_t hybrid = sec / 2; | |
| 543 | Bool_t inner = (ring == 'I' || ring == 'i'); | |
| 544 | Double_t z = 0; | |
| 1f7aa5c7 | 545 | |
| 546 | ||
| 6f4a5c0d | 547 | switch (det) { |
| 5ca83fee | 548 | case 1: z = 320.266; break; |
| 549 | case 2: z = (inner ? 83.666 : 74.966); break; | |
| 6f4a5c0d | 550 | case 3: z = (inner ? -63.066 : -74.966); break; |
| 551 | default: return -999999; | |
| 552 | } | |
| 553 | if ((hybrid % 2) == 0) z -= .5; | |
| 554 | ||
| 555 | Double_t theta = TMath::ATan2(r,z-zvtx); | |
| 556 | Double_t eta = -1*TMath::Log(TMath::Tan(0.5*theta)); | |
| 557 | ||
| 558 | return eta; | |
| 559 | } | |
| 1f7aa5c7 | 560 | #endif |
| 0bd4b00f | 561 | |
| 5ca83fee | 562 | //_____________________________________________________________________ |
| 563 | Double_t AliForwardUtil::GetPhiFromStrip(Char_t ring, UShort_t strip, | |
| 564 | Double_t phi, | |
| 565 | Double_t xvtx, Double_t yvtx) | |
| 566 | { | |
| 567 | // Calculate eta from strip with vertex (redundant with | |
| 568 | // AliESDFMD::Eta but support displaced vertices) | |
| 569 | ||
| 570 | // Unknown x,y -> no change | |
| 571 | if (yvtx > 999 || xvtx > 999) return phi; | |
| 572 | ||
| 573 | //Get max R of ring | |
| 574 | Double_t r = GetStripR(ring, strip); | |
| 575 | Double_t amp = TMath::Sqrt(xvtx*xvtx+yvtx*yvtx) / r; | |
| 576 | Double_t pha = (TMath::Abs(yvtx) < 1e-12 ? 0 : TMath::ATan2(xvtx, yvtx)); | |
| 577 | Double_t cha = amp * TMath::Cos(phi+pha); | |
| 578 | phi += cha; | |
| 579 | if (phi < 0) phi += TMath::TwoPi(); | |
| 580 | if (phi > TMath::TwoPi()) phi -= TMath::TwoPi(); | |
| 581 | return phi; | |
| 582 | } | |
| c8b1a7db | 583 | //==================================================================== |
| 584 | TAxis* | |
| 585 | AliForwardUtil::MakeFullIpZAxis(Int_t nCenter) | |
| 77f97e3f CHC |
586 | { |
| 587 | TArrayD bins; | |
| 588 | MakeFullIpZAxis(nCenter, bins); | |
| 589 | TAxis* a = new TAxis(bins.GetSize()-1,bins.GetArray()); | |
| 590 | return a; | |
| 591 | } | |
| 592 | void | |
| 593 | AliForwardUtil::MakeFullIpZAxis(Int_t nCenter, TArrayD& bins) | |
| c8b1a7db | 594 | { |
| 595 | // Custom vertex axis that will include satellite vertices | |
| 596 | // Satellite vertices are at k*37.5 where k=-10,-9,...,9,10 | |
| 597 | // Nominal vertices are usually in -10 to 10 and we should have | |
| 598 | // 10 bins in that range. That gives us a total of | |
| 599 | // | |
| 600 | // 10+10+10=30 bins | |
| 601 | // | |
| 602 | // or 31 bin boundaries | |
| 603 | if (nCenter % 2 == 1) | |
| 604 | // Number of central bins is odd - make it even | |
| 605 | nCenter--; | |
| 606 | const Double_t mCenter = 20; | |
| 607 | const Int_t nSat = 10; | |
| 608 | const Int_t nBins = 2*nSat + nCenter; | |
| 609 | const Int_t mBin = nBins / 2; | |
| 610 | Double_t dCenter = 2*mCenter / nCenter; | |
| 77f97e3f | 611 | bins.Set(nBins+1); |
| c8b1a7db | 612 | bins[mBin] = 0; |
| 613 | for (Int_t i = 1; i <= nCenter/2; i++) { | |
| 614 | // Assign from the middle out | |
| 615 | Double_t v = i * dCenter; | |
| 616 | // Printf("Assigning +/-%7.2f to %3d/%3d", v,mBin-i,mBin+i); | |
| 617 | bins[mBin-i] = -v; | |
| 618 | bins[mBin+i] = +v; | |
| 619 | } | |
| 620 | for (Int_t i = 1; i <= nSat; i++) { | |
| 621 | Double_t v = (i+.5) * 37.5; | |
| 622 | Int_t o = nCenter/2+i; | |
| 623 | // Printf("Assigning +/-%7.2f to %3d/%3d", v,mBin-o,mBin+o); | |
| 624 | bins[mBin-o] = -v; | |
| 625 | bins[mBin+o] = +v; | |
| 626 | } | |
| c8b1a7db | 627 | } |
| 77f97e3f CHC |
628 | void |
| 629 | AliForwardUtil::MakeLogScale(Int_t nBins, | |
| 630 | Int_t minOrder, | |
| 631 | Int_t maxOrder, | |
| 632 | TArrayD& bins) | |
| 633 | { | |
| 634 | Double_t dO = Double_t(maxOrder-minOrder) / nBins; | |
| 635 | bins.Set(nBins+1); | |
| 636 | for (Int_t i = 0; i <= nBins; i++) bins[i] = TMath::Power(10, i * dO); | |
| 637 | } | |
| 638 | ||
| c8b1a7db | 639 | void |
| 640 | AliForwardUtil::PrintTask(const TObject& o) | |
| 641 | { | |
| 642 | Int_t ind = gROOT->GetDirLevel(); | |
| 643 | if (ind > 0) | |
| 644 | // Print indention | |
| 645 | std::cout << std::setfill(' ') << std::setw(ind) << " " << std::flush; | |
| 646 | ||
| 647 | TString t = TString::Format("%s %s", o.GetName(), o.ClassName()); | |
| 648 | const Int_t maxN = 75; | |
| 649 | std::cout << "--- " << t << " " << std::setfill('-') | |
| 650 | << std::setw(maxN-ind-5-t.Length()) << "-" << std::endl; | |
| 651 | } | |
| 652 | void | |
| 653 | AliForwardUtil::PrintName(const char* name) | |
| 654 | { | |
| 655 | Int_t ind = gROOT->GetDirLevel(); | |
| 656 | if (ind > 0) | |
| 657 | // Print indention | |
| 658 | std::cout << std::setfill(' ') << std::setw(ind) << " " << std::flush; | |
| 659 | ||
| 660 | // Now print field name | |
| 661 | const Int_t maxN = 29; | |
| 662 | Int_t width = maxN - ind; | |
| 663 | TString n(name); | |
| 664 | if (n.Length() > width-1) { | |
| 665 | // Truncate the string, and put in "..." | |
| 666 | n.Remove(width-4); | |
| 667 | n.Append("..."); | |
| 668 | } | |
| 669 | n.Append(":"); | |
| 670 | std::cout << std::setfill(' ') << std::left << std::setw(width) | |
| 671 | << n << std::right << std::flush; | |
| 672 | } | |
| 673 | void | |
| 674 | AliForwardUtil::PrintField(const char* name, const char* value, ...) | |
| 675 | { | |
| 676 | PrintName(name); | |
| 677 | ||
| 678 | // Now format the field value | |
| 679 | va_list ap; | |
| 680 | va_start(ap, value); | |
| 681 | static char buf[512]; | |
| 682 | vsnprintf(buf, 511, value, ap); | |
| 683 | buf[511] = '\0'; | |
| 684 | va_end(ap); | |
| 685 | ||
| 686 | std::cout << buf << std::endl; | |
| 687 | } | |
| 0bd4b00f | 688 | |
| 7f759bb7 | 689 | //==================================================================== |
| a19faec0 | 690 | #if 0 // Moved to separate classes |
| 7f759bb7 | 691 | Int_t AliForwardUtil::fgConvolutionSteps = 100; |
| 692 | Double_t AliForwardUtil::fgConvolutionNSigma = 5; | |
| 693 | namespace { | |
| 7984e5f7 | 694 | // |
| 695 | // The shift of the most probable value for the ROOT function TMath::Landau | |
| 696 | // | |
| 7f759bb7 | 697 | const Double_t mpshift = -0.22278298; |
| 7984e5f7 | 698 | // |
| 699 | // Integration normalisation | |
| 700 | // | |
| 7f759bb7 | 701 | const Double_t invSq2pi = 1. / TMath::Sqrt(2*TMath::Pi()); |
| 702 | ||
| 7984e5f7 | 703 | // |
| 704 | // Utility function to use in TF1 defintition | |
| 705 | // | |
| 7f759bb7 | 706 | Double_t landauGaus1(Double_t* xp, Double_t* pp) |
| 707 | { | |
| 708 | Double_t x = xp[0]; | |
| c389303e | 709 | Double_t constant = pp[AliForwardUtil::ELossFitter::kC]; |
| 710 | Double_t delta = pp[AliForwardUtil::ELossFitter::kDelta]; | |
| 711 | Double_t xi = pp[AliForwardUtil::ELossFitter::kXi]; | |
| 712 | Double_t sigma = pp[AliForwardUtil::ELossFitter::kSigma]; | |
| 1174780f | 713 | Double_t sigmaN = pp[AliForwardUtil::ELossFitter::kSigmaN]; |
| 7f759bb7 | 714 | |
| 1174780f | 715 | return constant * AliForwardUtil::LandauGaus(x, delta, xi, sigma, sigmaN); |
| 7f759bb7 | 716 | } |
| 717 | ||
| 2e658fb9 | 718 | Double_t landauGausComposite(Double_t* xp, Double_t* pp) |
| 719 | { | |
| 720 | Double_t x = xp[0]; | |
| 721 | Double_t cP = pp[AliForwardUtil::ELossFitter::kC]; | |
| 722 | Double_t deltaP = pp[AliForwardUtil::ELossFitter::kDelta]; | |
| 723 | Double_t xiP = pp[AliForwardUtil::ELossFitter::kXi]; | |
| 724 | Double_t sigmaP = pp[AliForwardUtil::ELossFitter::kSigma]; | |
| 725 | Double_t cS = pp[AliForwardUtil::ELossFitter::kSigma+1]; | |
| 93a63fe1 | 726 | Double_t deltaS = deltaP; // pp[AliForwardUtil::ELossFitter::kSigma+2]; |
| 727 | Double_t xiS = pp[AliForwardUtil::ELossFitter::kSigma+2/*3*/]; | |
| 728 | Double_t sigmaS = sigmaP; // pp[AliForwardUtil::ELossFitter::kSigma+4]; | |
| 2e658fb9 | 729 | |
| 730 | return (cP * AliForwardUtil::LandauGaus(x,deltaP,xiP,sigmaP,0) + | |
| 731 | cS * AliForwardUtil::LandauGaus(x,deltaS,xiS,sigmaS,0)); | |
| 732 | } | |
| 733 | ||
| 7984e5f7 | 734 | // |
| 735 | // Utility function to use in TF1 defintition | |
| 736 | // | |
| 7f759bb7 | 737 | Double_t landauGausN(Double_t* xp, Double_t* pp) |
| 738 | { | |
| 739 | Double_t x = xp[0]; | |
| c389303e | 740 | Double_t constant = pp[AliForwardUtil::ELossFitter::kC]; |
| 741 | Double_t delta = pp[AliForwardUtil::ELossFitter::kDelta]; | |
| 742 | Double_t xi = pp[AliForwardUtil::ELossFitter::kXi]; | |
| 743 | Double_t sigma = pp[AliForwardUtil::ELossFitter::kSigma]; | |
| 1174780f | 744 | Double_t sigmaN = pp[AliForwardUtil::ELossFitter::kSigmaN]; |
| c389303e | 745 | Int_t n = Int_t(pp[AliForwardUtil::ELossFitter::kN]); |
| 746 | Double_t* a = &(pp[AliForwardUtil::ELossFitter::kA]); | |
| 7f759bb7 | 747 | |
| 1174780f | 748 | return constant * AliForwardUtil::NLandauGaus(x, delta, xi, sigma, sigmaN, |
| 7f759bb7 | 749 | n, a); |
| 750 | } | |
| 7984e5f7 | 751 | // |
| 752 | // Utility function to use in TF1 defintition | |
| 753 | // | |
| 0bd4b00f | 754 | Double_t landauGausI(Double_t* xp, Double_t* pp) |
| 755 | { | |
| 756 | Double_t x = xp[0]; | |
| 757 | Double_t constant = pp[AliForwardUtil::ELossFitter::kC]; | |
| 758 | Double_t delta = pp[AliForwardUtil::ELossFitter::kDelta]; | |
| 759 | Double_t xi = pp[AliForwardUtil::ELossFitter::kXi]; | |
| 760 | Double_t sigma = pp[AliForwardUtil::ELossFitter::kSigma]; | |
| 1174780f | 761 | Double_t sigmaN = pp[AliForwardUtil::ELossFitter::kSigmaN]; |
| 0bd4b00f | 762 | Int_t i = Int_t(pp[AliForwardUtil::ELossFitter::kN]); |
| 763 | ||
| 1174780f | 764 | return constant * AliForwardUtil::ILandauGaus(x,delta,xi,sigma,sigmaN,i); |
| 0bd4b00f | 765 | } |
| 7f759bb7 | 766 | |
| 767 | ||
| 768 | } | |
| 769 | //____________________________________________________________________ | |
| 770 | Double_t | |
| 771 | AliForwardUtil::Landau(Double_t x, Double_t delta, Double_t xi) | |
| 772 | { | |
| 7984e5f7 | 773 | // |
| 774 | // Calculate the shifted Landau | |
| 775 | // @f[ | |
| 776 | // f'_{L}(x;\Delta,\xi) = f_L(x;\Delta+0.22278298\xi) | |
| 777 | // @f] | |
| 778 | // | |
| 779 | // where @f$ f_{L}@f$ is the ROOT implementation of the Landau | |
| 780 | // distribution (known to have @f$ \Delta_{p}=-0.22278298@f$ for | |
| 781 | // @f$\Delta=0,\xi=1@f$. | |
| 782 | // | |
| 783 | // Parameters: | |
| 784 | // x Where to evaluate @f$ f'_{L}@f$ | |
| 785 | // delta Most probable value | |
| 786 | // xi The 'width' of the distribution | |
| 787 | // | |
| 788 | // Return: | |
| 789 | // @f$ f'_{L}(x;\Delta,\xi) @f$ | |
| 790 | // | |
| a19faec0 | 791 | Double_t deltaP = delta - xi * mpshift; |
| 792 | return TMath::Landau(x, deltaP, xi, true); | |
| 7f759bb7 | 793 | } |
| 794 | //____________________________________________________________________ | |
| 795 | Double_t | |
| 796 | AliForwardUtil::LandauGaus(Double_t x, Double_t delta, Double_t xi, | |
| 1174780f | 797 | Double_t sigma, Double_t sigmaN) |
| 7f759bb7 | 798 | { |
| 7984e5f7 | 799 | // |
| 800 | // Calculate the value of a Landau convolved with a Gaussian | |
| 801 | // | |
| 802 | // @f[ | |
| 803 | // f(x;\Delta,\xi,\sigma') = \frac{1}{\sigma' \sqrt{2 \pi}} | |
| 804 | // \int_{-\infty}^{+\infty} d\Delta' f'_{L}(x;\Delta',\xi) | |
| 805 | // \exp{-\frac{(\Delta-\Delta')^2}{2\sigma'^2}} | |
| 806 | // @f] | |
| 807 | // | |
| 808 | // where @f$ f'_{L}@f$ is the Landau distribution, @f$ \Delta@f$ the | |
| 809 | // energy loss, @f$ \xi@f$ the width of the Landau, and | |
| 810 | // @f$ \sigma'^2=\sigma^2-\sigma_n^2 @f$. Here, @f$\sigma@f$ is the | |
| 811 | // variance of the Gaussian, and @f$\sigma_n@f$ is a parameter modelling | |
| 812 | // noise in the detector. | |
| 813 | // | |
| 814 | // Note that this function uses the constants fgConvolutionSteps and | |
| 815 | // fgConvolutionNSigma | |
| 816 | // | |
| 817 | // References: | |
| 818 | // - <a href="http://dx.doi.org/10.1016/0168-583X(84)90472-5">Nucl.Instrum.Meth.B1:16</a> | |
| 819 | // - <a href="http://dx.doi.org/10.1103/PhysRevA.28.615">Phys.Rev.A28:615</a> | |
| 820 | // - <a href="http://root.cern.ch/root/htmldoc/tutorials/fit/langaus.C.html">ROOT implementation</a> | |
| 821 | // | |
| 822 | // Parameters: | |
| 823 | // x where to evaluate @f$ f@f$ | |
| 824 | // delta @f$ \Delta@f$ of @f$ f(x;\Delta,\xi,\sigma')@f$ | |
| 825 | // xi @f$ \xi@f$ of @f$ f(x;\Delta,\xi,\sigma')@f$ | |
| 826 | // sigma @f$ \sigma@f$ of @f$\sigma'^2=\sigma^2-\sigma_n^2 @f$ | |
| 827 | // sigma_n @f$ \sigma_n@f$ of @f$\sigma'^2=\sigma^2-\sigma_n^2 @f$ | |
| 828 | // | |
| 829 | // Return: | |
| 830 | // @f$ f@f$ evaluated at @f$ x@f$. | |
| 831 | // | |
| a19faec0 | 832 | if (xi <= 0) return 0; |
| 833 | ||
| 834 | Double_t deltaP = delta; // - sigma * sigmaShift; // + sigma * mpshift; | |
| 1174780f | 835 | Double_t sigma2 = sigmaN*sigmaN + sigma*sigma; |
| 836 | Double_t sigma1 = sigmaN == 0 ? sigma : TMath::Sqrt(sigma2); | |
| 7f759bb7 | 837 | Double_t xlow = x - fgConvolutionNSigma * sigma1; |
| c389303e | 838 | Double_t xhigh = x + fgConvolutionNSigma * sigma1; |
| 7f759bb7 | 839 | Double_t step = (xhigh - xlow) / fgConvolutionSteps; |
| 840 | Double_t sum = 0; | |
| 841 | ||
| 842 | for (Int_t i = 0; i <= fgConvolutionSteps/2; i++) { | |
| c389303e | 843 | Double_t x1 = xlow + (i - .5) * step; |
| 844 | Double_t x2 = xhigh - (i - .5) * step; | |
| 7f759bb7 | 845 | |
| a19faec0 | 846 | //sum += TMath::Landau(x1, deltap, xi, kTRUE) * TMath::Gaus(x, x1, sigma1); |
| 847 | //sum += TMath::Landau(x2, deltap, xi, kTRUE) * TMath::Gaus(x, x2, sigma1); | |
| 848 | sum += Landau(x1, deltaP, xi) * TMath::Gaus(x, x1, sigma1); | |
| 849 | sum += Landau(x2, deltaP, xi) * TMath::Gaus(x, x2, sigma1); | |
| 7f759bb7 | 850 | } |
| 851 | return step * sum * invSq2pi / sigma1; | |
| 852 | } | |
| 853 | ||
| a19faec0 | 854 | namespace { |
| 855 | const Double_t sigmaShift = 0.36390; // TMath::Log(TMath::Sqrt(2.)); | |
| 856 | double deltaSigmaShift(Int_t i, Double_t sigma) | |
| 857 | { | |
| 858 | return 0; // - sigma * sigmaShift; | |
| 859 | } | |
| 860 | void getIPars(Int_t i, Double_t& delta, Double_t& xi, Double_t& sigma) | |
| 861 | { | |
| 862 | Double_t dsig = deltaSigmaShift(i, sigma); | |
| 863 | if (i == 1) { | |
| 864 | delta += dsig; | |
| 865 | return; // { delta = delta + xi*mpshift; return; } // Do nothing | |
| 866 | } | |
| 867 | ||
| 868 | delta = i * (delta + xi * TMath::Log(i)) + dsig; | |
| 869 | xi = i * xi; | |
| 870 | sigma = TMath::Sqrt(Double_t(i)) * sigma; | |
| 871 | } | |
| 872 | } | |
| 873 | ||
| 874 | ||
| 0bd4b00f | 875 | //____________________________________________________________________ |
| 876 | Double_t | |
| 877 | AliForwardUtil::ILandauGaus(Double_t x, Double_t delta, Double_t xi, | |
| 1174780f | 878 | Double_t sigma, Double_t sigmaN, Int_t i) |
| 0bd4b00f | 879 | { |
| 7984e5f7 | 880 | // |
| 881 | // Evaluate | |
| 882 | // @f[ | |
| 883 | // f_i(x;\Delta,\xi,\sigma') = f(x;\Delta_i,\xi_i,\sigma_i') | |
| 884 | // @f] | |
| 885 | // corresponding to @f$ i@f$ particles i.e., with the substitutions | |
| 886 | // @f{eqnarray*}{ | |
| 887 | // \Delta \rightarrow \Delta_i &=& i(\Delta + \xi\log(i)) | |
| 888 | // \xi \rightarrow \xi_i &=& i \xi | |
| 889 | // \sigma \rightarrow \sigma_i &=& \sqrt{i}\sigma | |
| 890 | // \sigma'^2 \rightarrow \sigma_i'^2 &=& \sigma_n^2 + \sigma_i^2 | |
| 891 | // @f} | |
| 892 | // | |
| 893 | // Parameters: | |
| 894 | // x Where to evaluate | |
| 895 | // delta @f$ \Delta@f$ | |
| 896 | // xi @f$ \xi@f$ | |
| 897 | // sigma @f$ \sigma@f$ | |
| 898 | // sigma_n @f$ \sigma_n@f$ | |
| 899 | // i @f$ i @f$ | |
| 900 | // | |
| 901 | // Return: | |
| 902 | // @f$ f_i @f$ evaluated | |
| 903 | // | |
| a19faec0 | 904 | Double_t deltaI = delta; |
| 905 | Double_t xiI = xi; | |
| 906 | Double_t sigmaI = sigma; | |
| 907 | getIPars(i, deltaI, xiI, sigmaI); | |
| 1174780f | 908 | if (sigmaI < 1e-10) { |
| 0bd4b00f | 909 | // Fall back to landau |
| 1174780f | 910 | return AliForwardUtil::Landau(x, deltaI, xiI); |
| 0bd4b00f | 911 | } |
| 1174780f | 912 | return AliForwardUtil::LandauGaus(x, deltaI, xiI, sigmaI, sigmaN); |
| 0bd4b00f | 913 | } |
| 914 | ||
| 915 | //____________________________________________________________________ | |
| 916 | Double_t | |
| 917 | AliForwardUtil::IdLandauGausdPar(Double_t x, | |
| 918 | UShort_t par, Double_t dPar, | |
| 919 | Double_t delta, Double_t xi, | |
| 1174780f | 920 | Double_t sigma, Double_t sigmaN, |
| 0bd4b00f | 921 | Int_t i) |
| 922 | { | |
| 7984e5f7 | 923 | // |
| 924 | // Numerically evaluate | |
| 925 | // @f[ | |
| 926 | // \left.\frac{\partial f_i}{\partial p_i}\right|_{x} | |
| 927 | // @f] | |
| 928 | // where @f$ p_i@f$ is the @f$ i^{\mbox{th}}@f$ parameter. The mapping | |
| 929 | // of the parameters is given by | |
| 930 | // | |
| 931 | // - 0: @f$\Delta@f$ | |
| 932 | // - 1: @f$\xi@f$ | |
| 933 | // - 2: @f$\sigma@f$ | |
| 934 | // - 3: @f$\sigma_n@f$ | |
| 935 | // | |
| 936 | // This is the partial derivative with respect to the parameter of | |
| 937 | // the response function corresponding to @f$ i@f$ particles i.e., | |
| 938 | // with the substitutions | |
| 939 | // @f[ | |
| 940 | // \Delta \rightarrow \Delta_i = i(\Delta + \xi\log(i)) | |
| 941 | // \xi \rightarrow \xi_i = i \xi | |
| 942 | // \sigma \rightarrow \sigma_i = \sqrt{i}\sigma | |
| 943 | // \sigma'^2 \rightarrow \sigma_i'^2 = \sigma_n^2 + \sigma_i^2 | |
| 944 | // @f] | |
| 945 | // | |
| 946 | // Parameters: | |
| 947 | // x Where to evaluate | |
| 948 | // ipar Parameter number | |
| 949 | // dp @f$ \epsilon\delta p_i@f$ for some value of @f$\epsilon@f$ | |
| 950 | // delta @f$ \Delta@f$ | |
| 951 | // xi @f$ \xi@f$ | |
| 952 | // sigma @f$ \sigma@f$ | |
| 953 | // sigma_n @f$ \sigma_n@f$ | |
| 954 | // i @f$ i@f$ | |
| 955 | // | |
| 956 | // Return: | |
| 957 | // @f$ f_i@f$ evaluated | |
| 958 | // | |
| 0bd4b00f | 959 | if (dPar == 0) return 0; |
| 960 | Double_t dp = dPar; | |
| 961 | Double_t d2 = dPar / 2; | |
| 1174780f | 962 | Double_t deltaI = i * (delta + xi * TMath::Log(i)); |
| 963 | Double_t xiI = i * xi; | |
| 0bd4b00f | 964 | Double_t si = TMath::Sqrt(Double_t(i)); |
| 1174780f | 965 | Double_t sigmaI = si*sigma; |
| 0bd4b00f | 966 | Double_t y1 = 0; |
| 967 | Double_t y2 = 0; | |
| 968 | Double_t y3 = 0; | |
| 969 | Double_t y4 = 0; | |
| 970 | switch (par) { | |
| 971 | case 0: | |
| 1174780f | 972 | y1 = ILandauGaus(x, deltaI+i*dp, xiI, sigmaI, sigmaN, i); |
| 973 | y2 = ILandauGaus(x, deltaI+i*d2, xiI, sigmaI, sigmaN, i); | |
| 974 | y3 = ILandauGaus(x, deltaI-i*d2, xiI, sigmaI, sigmaN, i); | |
| 975 | y4 = ILandauGaus(x, deltaI-i*dp, xiI, sigmaI, sigmaN, i); | |
| 0bd4b00f | 976 | break; |
| 977 | case 1: | |
| 1174780f | 978 | y1 = ILandauGaus(x, deltaI, xiI+i*dp, sigmaI, sigmaN, i); |
| 979 | y2 = ILandauGaus(x, deltaI, xiI+i*d2, sigmaI, sigmaN, i); | |
| 980 | y3 = ILandauGaus(x, deltaI, xiI-i*d2, sigmaI, sigmaN, i); | |
| 981 | y4 = ILandauGaus(x, deltaI, xiI-i*dp, sigmaI, sigmaN, i); | |
| 0bd4b00f | 982 | break; |
| 983 | case 2: | |
| 1174780f | 984 | y1 = ILandauGaus(x, deltaI, xiI, sigmaI+si*dp, sigmaN, i); |
| 985 | y2 = ILandauGaus(x, deltaI, xiI, sigmaI+si*d2, sigmaN, i); | |
| 986 | y3 = ILandauGaus(x, deltaI, xiI, sigmaI-si*d2, sigmaN, i); | |
| 987 | y4 = ILandauGaus(x, deltaI, xiI, sigmaI-si*dp, sigmaN, i); | |
| 0bd4b00f | 988 | break; |
| 989 | case 3: | |
| 1174780f | 990 | y1 = ILandauGaus(x, deltaI, xiI, sigmaI, sigmaN+dp, i); |
| 991 | y2 = ILandauGaus(x, deltaI, xiI, sigmaI, sigmaN+d2, i); | |
| 992 | y3 = ILandauGaus(x, deltaI, xiI, sigmaI, sigmaN-d2, i); | |
| 993 | y4 = ILandauGaus(x, deltaI, xiI, sigmaI, sigmaN-dp, i); | |
| 0bd4b00f | 994 | break; |
| 995 | default: | |
| 996 | return 0; | |
| 997 | } | |
| 998 | ||
| 999 | Double_t d0 = y1 - y4; | |
| 1000 | Double_t d1 = 2 * (y2 - y3); | |
| 1001 | ||
| 1002 | Double_t g = 1/(2*dp) * (4*d1 - d0) / 3; | |
| 1003 | ||
| 1004 | return g; | |
| 1005 | } | |
| 1006 | ||
| 7f759bb7 | 1007 | //____________________________________________________________________ |
| 1008 | Double_t | |
| 1009 | AliForwardUtil::NLandauGaus(Double_t x, Double_t delta, Double_t xi, | |
| 1174780f | 1010 | Double_t sigma, Double_t sigmaN, Int_t n, |
| fb3430ac | 1011 | const Double_t* a) |
| 7f759bb7 | 1012 | { |
| 7984e5f7 | 1013 | // |
| 1014 | // Evaluate | |
| 1015 | // @f[ | |
| 1016 | // f_N(x;\Delta,\xi,\sigma') = \sum_{i=1}^N a_i f_i(x;\Delta,\xi,\sigma'a) | |
| 1017 | // @f] | |
| 1018 | // | |
| 1019 | // where @f$ f(x;\Delta,\xi,\sigma')@f$ is the convolution of a | |
| 1020 | // Landau with a Gaussian (see LandauGaus). Note that | |
| 1021 | // @f$ a_1 = 1@f$, @f$\Delta_i = i(\Delta_1 + \xi\log(i))@f$, | |
| 1022 | // @f$\xi_i=i\xi_1@f$, and @f$\sigma_i'^2 = \sigma_n^2 + i\sigma_1^2@f$. | |
| 1023 | // | |
| 1024 | // References: | |
| 1025 | // - <a href="http://dx.doi.org/10.1016/0168-583X(84)90472-5">Nucl.Instrum.Meth.B1:16</a> | |
| 1026 | // - <a href="http://dx.doi.org/10.1103/PhysRevA.28.615">Phys.Rev.A28:615</a> | |
| 1027 | // - <a href="http://root.cern.ch/root/htmldoc/tutorials/fit/langaus.C.html">ROOT implementation</a> | |
| 1028 | // | |
| 1029 | // Parameters: | |
| 1030 | // x Where to evaluate @f$ f_N@f$ | |
| 1031 | // delta @f$ \Delta_1@f$ | |
| 1032 | // xi @f$ \xi_1@f$ | |
| 1033 | // sigma @f$ \sigma_1@f$ | |
| 1034 | // sigma_n @f$ \sigma_n@f$ | |
| 1035 | // n @f$ N@f$ in the sum above. | |
| 1036 | // a Array of size @f$ N-1@f$ of the weights @f$ a_i@f$ for | |
| 1037 | // @f$ i > 1@f$ | |
| 1038 | // | |
| 1039 | // Return: | |
| 1040 | // @f$ f_N(x;\Delta,\xi,\sigma')@f$ | |
| 1041 | // | |
| 1174780f | 1042 | Double_t result = ILandauGaus(x, delta, xi, sigma, sigmaN, 1); |
| 0bd4b00f | 1043 | for (Int_t i = 2; i <= n; i++) |
| 1174780f | 1044 | result += a[i-2] * AliForwardUtil::ILandauGaus(x,delta,xi,sigma,sigmaN,i); |
| 7f759bb7 | 1045 | return result; |
| 1046 | } | |
| 0bd4b00f | 1047 | namespace { |
| 1048 | const Int_t kColors[] = { kRed+1, | |
| 1049 | kPink+3, | |
| 1050 | kMagenta+2, | |
| 1051 | kViolet+2, | |
| 1052 | kBlue+1, | |
| 1053 | kAzure+3, | |
| 1054 | kCyan+1, | |
| 1055 | kTeal+2, | |
| 1056 | kGreen+2, | |
| 1057 | kSpring+3, | |
| 1058 | kYellow+2, | |
| 1059 | kOrange+2 }; | |
| 1060 | } | |
| 1061 | ||
| 1062 | //____________________________________________________________________ | |
| 1063 | TF1* | |
| 1064 | AliForwardUtil::MakeNLandauGaus(Double_t c, | |
| 1065 | Double_t delta, Double_t xi, | |
| 1174780f | 1066 | Double_t sigma, Double_t sigmaN, Int_t n, |
| fb3430ac | 1067 | const Double_t* a, |
| 0bd4b00f | 1068 | Double_t xmin, Double_t xmax) |
| 1069 | { | |
| 7984e5f7 | 1070 | // |
| 1071 | // Generate a TF1 object of @f$ f_N@f$ | |
| 1072 | // | |
| 1073 | // Parameters: | |
| 1074 | // c Constant | |
| 1075 | // delta @f$ \Delta@f$ | |
| 1076 | // xi @f$ \xi_1@f$ | |
| 1077 | // sigma @f$ \sigma_1@f$ | |
| 1078 | // sigma_n @f$ \sigma_n@f$ | |
| 1079 | // n @f$ N@f$ - how many particles to sum to | |
| 1080 | // a Array of size @f$ N-1@f$ of the weights @f$ a_i@f$ for | |
| 1081 | // @f$ i > 1@f$ | |
| 1082 | // xmin Least value of range | |
| 1083 | // xmax Largest value of range | |
| 1084 | // | |
| 1085 | // Return: | |
| 1086 | // Newly allocated TF1 object | |
| 1087 | // | |
| 0bd4b00f | 1088 | Int_t npar = AliForwardUtil::ELossFitter::kN+n; |
| 1089 | TF1* landaun = new TF1(Form("nlandau%d", n), &landauGausN,xmin,xmax,npar); | |
| 1090 | // landaun->SetLineStyle(((n-2) % 10)+2); // start at dashed | |
| 1091 | landaun->SetLineColor(kColors[((n-1) % 12)]); // start at red | |
| 1092 | landaun->SetLineWidth(2); | |
| 1093 | landaun->SetNpx(500); | |
| 1094 | landaun->SetParNames("C","#Delta_{p}","#xi", "#sigma", "#sigma_{n}", "N"); | |
| 1095 | ||
| 1096 | // Set the initial parameters from the seed fit | |
| 1097 | landaun->SetParameter(AliForwardUtil::ELossFitter::kC, c); | |
| 1098 | landaun->SetParameter(AliForwardUtil::ELossFitter::kDelta, delta); | |
| 1099 | landaun->SetParameter(AliForwardUtil::ELossFitter::kXi, xi); | |
| 1100 | landaun->SetParameter(AliForwardUtil::ELossFitter::kSigma, sigma); | |
| 1174780f | 1101 | landaun->SetParameter(AliForwardUtil::ELossFitter::kSigmaN, sigmaN); |
| 0bd4b00f | 1102 | landaun->FixParameter(AliForwardUtil::ELossFitter::kN, n); |
| 1103 | ||
| 1104 | // Set the range and name of the scale parameters | |
| 1105 | for (UShort_t i = 2; i <= n; i++) {// Take parameters from last fit | |
| 1106 | landaun->SetParameter(AliForwardUtil::ELossFitter::kA+i-2, a[i-2]); | |
| 1107 | landaun->SetParName(AliForwardUtil::ELossFitter::kA+i-2, Form("a_{%d}", i)); | |
| 1108 | } | |
| 1109 | return landaun; | |
| 1110 | } | |
| 1111 | //____________________________________________________________________ | |
| 1112 | TF1* | |
| 1113 | AliForwardUtil::MakeILandauGaus(Double_t c, | |
| 1114 | Double_t delta, Double_t xi, | |
| 1174780f | 1115 | Double_t sigma, Double_t sigmaN, Int_t i, |
| 0bd4b00f | 1116 | Double_t xmin, Double_t xmax) |
| 1117 | { | |
| 7984e5f7 | 1118 | // |
| 1119 | // Generate a TF1 object of @f$ f_I@f$ | |
| 1120 | // | |
| 1121 | // Parameters: | |
| 1122 | // c Constant | |
| 1123 | // delta @f$ \Delta@f$ | |
| 1124 | // xi @f$ \xi_1@f$ | |
| 1125 | // sigma @f$ \sigma_1@f$ | |
| 1126 | // sigma_n @f$ \sigma_n@f$ | |
| 1127 | // i @f$ i@f$ - the number of particles | |
| 1128 | // xmin Least value of range | |
| 1129 | // xmax Largest value of range | |
| 1130 | // | |
| 1131 | // Return: | |
| 1132 | // Newly allocated TF1 object | |
| 1133 | // | |
| 0bd4b00f | 1134 | Int_t npar = AliForwardUtil::ELossFitter::kN+1; |
| 1135 | TF1* landaui = new TF1(Form("ilandau%d", i), &landauGausI,xmin,xmax,npar); | |
| 1136 | // landaui->SetLineStyle(((i-2) % 10)+2); // start at dashed | |
| 1137 | landaui->SetLineColor(kColors[((i-1) % 12)]); // start at red | |
| 1138 | landaui->SetLineWidth(1); | |
| 1139 | landaui->SetNpx(500); | |
| 1140 | landaui->SetParNames("C","#Delta_{p}","#xi", "#sigma", "#sigma_{n}", "i"); | |
| 1141 | ||
| 1142 | // Set the initial parameters from the seed fit | |
| 1143 | landaui->SetParameter(AliForwardUtil::ELossFitter::kC, c); | |
| 1144 | landaui->SetParameter(AliForwardUtil::ELossFitter::kDelta, delta); | |
| 1145 | landaui->SetParameter(AliForwardUtil::ELossFitter::kXi, xi); | |
| 1146 | landaui->SetParameter(AliForwardUtil::ELossFitter::kSigma, sigma); | |
| 1174780f | 1147 | landaui->SetParameter(AliForwardUtil::ELossFitter::kSigmaN, sigmaN); |
| 0bd4b00f | 1148 | landaui->FixParameter(AliForwardUtil::ELossFitter::kN, i); |
| 1149 | ||
| 1150 | return landaui; | |
| 1151 | } | |
| 7f759bb7 | 1152 | |
| 1153 | //==================================================================== | |
| 1154 | AliForwardUtil::ELossFitter::ELossFitter(Double_t lowCut, | |
| 1155 | Double_t maxRange, | |
| 1156 | UShort_t minusBins) | |
| 1157 | : fLowCut(lowCut), fMaxRange(maxRange), fMinusBins(minusBins), | |
| 81775aba | 1158 | fFitResults(0), fFunctions(0), fDebug(false) |
| 7f759bb7 | 1159 | { |
| 7984e5f7 | 1160 | // |
| 1161 | // Constructor | |
| 1162 | // | |
| 1163 | // Parameters: | |
| 1164 | // lowCut Lower cut of spectrum - data below this cuts is ignored | |
| 1165 | // maxRange Maximum range to fit to | |
| 1166 | // minusBins The number of bins below maximum to use | |
| 1167 | // | |
| 7f759bb7 | 1168 | fFitResults.SetOwner(); |
| 1169 | fFunctions.SetOwner(); | |
| 1170 | } | |
| 1171 | //____________________________________________________________________ | |
| 1172 | AliForwardUtil::ELossFitter::~ELossFitter() | |
| 1173 | { | |
| 7984e5f7 | 1174 | // |
| 1175 | // Destructor | |
| 1176 | // | |
| 1177 | // | |
| 7f759bb7 | 1178 | fFitResults.Delete(); |
| 1179 | fFunctions.Delete(); | |
| 1180 | } | |
| 1181 | //____________________________________________________________________ | |
| 1182 | void | |
| 1183 | AliForwardUtil::ELossFitter::Clear() | |
| 1184 | { | |
| 7984e5f7 | 1185 | // |
| 1186 | // Clear internal arrays | |
| 1187 | // | |
| 1188 | // | |
| 7f759bb7 | 1189 | fFitResults.Clear(); |
| 1190 | fFunctions.Clear(); | |
| 1191 | } | |
| a19faec0 | 1192 | namespace { |
| 1193 | void setParLimit(TF1* f, Int_t iPar, Bool_t debug, | |
| 1194 | Double_t test, Double_t low, Double_t high) | |
| 1195 | { | |
| 1196 | if (test >= low && test <= high) { | |
| 1197 | if (debug) | |
| 1198 | printf("Fit: Set par limits on %s: %f, %f\n", | |
| 1199 | f->GetParName(iPar), low, high); | |
| 1200 | f->SetParLimits(iPar, low, high); | |
| 1201 | } | |
| 1202 | } | |
| 1203 | } | |
| 1204 | ||
| 7f759bb7 | 1205 | //____________________________________________________________________ |
| 1206 | TF1* | |
| 1207 | AliForwardUtil::ELossFitter::Fit1Particle(TH1* dist, Double_t sigman) | |
| 1208 | { | |
| 7984e5f7 | 1209 | // |
| 1210 | // Fit a 1-particle signal to the passed energy loss distribution | |
| 1211 | // | |
| 1212 | // Note that this function clears the internal arrays first | |
| 1213 | // | |
| 1214 | // Parameters: | |
| 1215 | // dist Data to fit the function to | |
| 1216 | // sigman If larger than zero, the initial guess of the | |
| 1217 | // detector induced noise. If zero or less, then this | |
| 1218 | // parameter is ignored in the fit (fixed at 0) | |
| 1219 | // | |
| 1220 | // Return: | |
| 1221 | // The function fitted to the data | |
| 1222 | // | |
| 1223 | ||
| 7f759bb7 | 1224 | // Clear the cache |
| 1225 | Clear(); | |
| 1226 | ||
| 1227 | // Find the fit range | |
| 8449e3e0 | 1228 | // Find the fit range |
| 1229 | Int_t cutBin = TMath::Max(dist->GetXaxis()->FindBin(fLowCut),3); | |
| 1230 | Int_t maxBin = TMath::Min(dist->GetXaxis()->FindBin(fMaxRange), | |
| 1231 | dist->GetNbinsX()); | |
| 1232 | dist->GetXaxis()->SetRange(cutBin, maxBin); | |
| 1233 | // dist->GetXaxis()->SetRangeUser(fLowCut, fMaxRange); | |
| 7f759bb7 | 1234 | |
| 7f759bb7 | 1235 | // Get the bin with maximum |
| 2e658fb9 | 1236 | Int_t peakBin = dist->GetMaximumBin(); |
| 1237 | Double_t peakE = dist->GetBinLowEdge(peakBin); | |
| a19faec0 | 1238 | Double_t rmsE = dist->GetRMS(); |
| 7f759bb7 | 1239 | |
| 1240 | // Get the low edge | |
| 8449e3e0 | 1241 | // dist->GetXaxis()->SetRangeUser(fLowCut, peakE); |
| 2e658fb9 | 1242 | Int_t minBin = peakBin - fMinusBins; // dist->GetMinimumBin(); |
| 7f759bb7 | 1243 | Double_t minE = TMath::Max(dist->GetBinCenter(minBin),fLowCut); |
| 2e658fb9 | 1244 | Double_t maxE = dist->GetBinCenter(peakBin+2*fMinusBins); |
| 7f759bb7 | 1245 | |
| 2e658fb9 | 1246 | Int_t minEb = dist->GetXaxis()->FindBin(minE); |
| 1247 | Int_t maxEb = dist->GetXaxis()->FindBin(maxE); | |
| 1248 | Double_t intg = dist->Integral(minEb, maxEb); | |
| 1249 | if (intg <= 0) { | |
| 1250 | ::Warning("Fit1Particle", | |
| 1251 | "Integral of %s between [%f,%f] [%03d,%03d] = %f < 0", | |
| 1252 | dist->GetName(), minE, maxE, minEb, maxEb, intg); | |
| 1253 | return 0; | |
| 1254 | } | |
| 1255 | ||
| 7f759bb7 | 1256 | // Restore the range |
| 8449e3e0 | 1257 | dist->GetXaxis()->SetRange(1, maxBin); |
| 7f759bb7 | 1258 | |
| 1259 | // Define the function to fit | |
| 2e658fb9 | 1260 | TF1* landau1 = new TF1("landau1", landauGaus1, minE,maxE,kSigmaN+1); |
| 7f759bb7 | 1261 | |
| 1262 | // Set initial guesses, parameter names, and limits | |
| a19faec0 | 1263 | landau1->SetParameters(intg,peakE,peakE/10,peakE/5,sigman); |
| 7f759bb7 | 1264 | landau1->SetParNames("C","#Delta_{p}","#xi", "#sigma", "#sigma_{n}"); |
| c389303e | 1265 | landau1->SetNpx(500); |
| a19faec0 | 1266 | setParLimit(landau1, kDelta, fDebug, peakE, minE, fMaxRange); |
| 1267 | setParLimit(landau1, kXi, fDebug, peakE, 0, rmsE); // 0.1 | |
| 1268 | setParLimit(landau1, kSigma, fDebug, peakE/5, 1e-5, rmsE); // 0.1 | |
| c389303e | 1269 | if (sigman <= 0) landau1->FixParameter(kSigmaN, 0); |
| a19faec0 | 1270 | else |
| 1271 | setParLimit(landau1, kSigmaN, fDebug, peakE, 0, rmsE); | |
| 1272 | ||
| 7f759bb7 | 1273 | |
| a19faec0 | 1274 | TString opts(Form("%s%s", FIT_OPTIONS, fDebug ? "" : "Q")); |
| 7f759bb7 | 1275 | // Do the fit, getting the result object |
| 81775aba | 1276 | if (fDebug) |
| 1277 | ::Info("Fit1Particle", "Fitting in the range %f,%f", minE, maxE); | |
| a19faec0 | 1278 | TFitResultPtr r = dist->Fit(landau1, opts, "", minE, maxE); |
| 93a63fe1 | 1279 | if (!r.Get()) { |
| 1280 | ::Warning("Fit1Particle", | |
| 1281 | "No fit returned when processing %s in the range [%f,%f] " | |
| 1282 | "options %s", dist->GetName(), minE, maxE, FIT_OPTIONS); | |
| 1283 | return 0; | |
| 1284 | } | |
| 2e658fb9 | 1285 | // landau1->SetRange(minE, fMaxRange); |
| 7f759bb7 | 1286 | fFitResults.AddAtAndExpand(new TFitResult(*r), 0); |
| 1287 | fFunctions.AddAtAndExpand(landau1, 0); | |
| 1288 | ||
| 1289 | return landau1; | |
| 1290 | } | |
| 1291 | //____________________________________________________________________ | |
| 1292 | TF1* | |
| 1293 | AliForwardUtil::ELossFitter::FitNParticle(TH1* dist, UShort_t n, | |
| 1294 | Double_t sigman) | |
| 1295 | { | |
| 7984e5f7 | 1296 | // |
| 1297 | // Fit a N-particle signal to the passed energy loss distribution | |
| 1298 | // | |
| 1299 | // If there's no 1-particle fit present, it does that first | |
| 1300 | // | |
| 1301 | // Parameters: | |
| 1302 | // dist Data to fit the function to | |
| 1303 | // n Number of particle signals to fit | |
| 1304 | // sigman If larger than zero, the initial guess of the | |
| 1305 | // detector induced noise. If zero or less, then this | |
| 1306 | // parameter is ignored in the fit (fixed at 0) | |
| 1307 | // | |
| 1308 | // Return: | |
| 1309 | // The function fitted to the data | |
| 1310 | // | |
| 1311 | ||
| 7f759bb7 | 1312 | // Get the seed fit result |
| 1313 | TFitResult* r = static_cast<TFitResult*>(fFitResults.At(0)); | |
| 1314 | TF1* f = static_cast<TF1*>(fFunctions.At(0)); | |
| 1315 | if (!r || !f) { | |
| 1316 | f = Fit1Particle(dist, sigman); | |
| 1317 | r = static_cast<TFitResult*>(fFitResults.At(0)); | |
| 1318 | if (!r || !f) { | |
| 1319 | ::Warning("FitNLandau", "No first shot at landau fit"); | |
| 1320 | return 0; | |
| 1321 | } | |
| 1322 | } | |
| 1323 | ||
| 1324 | // Get some parameters from seed fit | |
| c389303e | 1325 | Double_t delta1 = r->Parameter(kDelta); |
| 1326 | Double_t xi1 = r->Parameter(kXi); | |
| 7f759bb7 | 1327 | Double_t maxEi = n * (delta1 + xi1 * TMath::Log(n)) + 2 * n * xi1; |
| 1328 | Double_t minE = f->GetXmin(); | |
| 1329 | ||
| 2e658fb9 | 1330 | Int_t minEb = dist->GetXaxis()->FindBin(minE); |
| 1331 | Int_t maxEb = dist->GetXaxis()->FindBin(maxEi); | |
| a19faec0 | 1332 | Double_t rmsE = dist->GetRMS(); |
| 2e658fb9 | 1333 | Double_t intg = dist->Integral(minEb, maxEb); |
| 1334 | if (intg <= 0) { | |
| 1335 | ::Warning("FitNParticle", | |
| 1336 | "Integral of %s between [%f,%f] [%03d,%03d] = %f < 0", | |
| 1337 | dist->GetName(), minE, maxEi, minEb, maxEb, intg); | |
| 1338 | return 0; | |
| 1339 | } | |
| 1340 | ||
| 0bd4b00f | 1341 | // Array of weights |
| 1342 | TArrayD a(n-1); | |
| 1343 | for (UShort_t i = 2; i <= n; i++) | |
| 1344 | a.fArray[i-2] = (n == 2 ? 0.05 : 0.000001); | |
| 7f759bb7 | 1345 | // Make the fit function |
| 2e658fb9 | 1346 | TF1* landaun = MakeNLandauGaus(r->Parameter(kC), |
| 1347 | r->Parameter(kDelta), | |
| 1348 | r->Parameter(kXi), | |
| 1349 | r->Parameter(kSigma), | |
| 1350 | r->Parameter(kSigmaN), | |
| 1351 | n, a.fArray, minE, maxEi); | |
| a19faec0 | 1352 | setParLimit(landaun, kDelta, fDebug, r->Parameter(kDelta), minE, fMaxRange); |
| 1353 | setParLimit(landaun, kXi, fDebug, r->Parameter(kXi), 0, rmsE); // 0.1 | |
| 1354 | setParLimit(landaun, kSigma, fDebug, r->Parameter(kSigma), 1e-5, rmsE); // 0.1 | |
| c389303e | 1355 | if (sigman <= 0) landaun->FixParameter(kSigmaN, 0); |
| a19faec0 | 1356 | else |
| 1357 | setParLimit(landaun, kSigmaN, fDebug, r->Parameter(kSigmaN), 0, rmsE); | |
| 7f759bb7 | 1358 | |
| 1359 | // Set the range and name of the scale parameters | |
| 1360 | for (UShort_t i = 2; i <= n; i++) {// Take parameters from last fit | |
| a19faec0 | 1361 | setParLimit(landaun, kA+i-2, fDebug, a[i-2], 0, 1); |
| 7f759bb7 | 1362 | } |
| 1363 | ||
| 1364 | // Do the fit | |
| a19faec0 | 1365 | TString opts(Form("%s%s", FIT_OPTIONS, fDebug ? "" : "Q")); |
| 81775aba | 1366 | if (fDebug) |
| 1367 | ::Info("FitNParticle", "Fitting in the range %f,%f (%d)", minE, maxEi, n); | |
| a19faec0 | 1368 | TFitResultPtr tr = dist->Fit(landaun, opts, "", minE, maxEi); |
| 7f759bb7 | 1369 | |
| 2e658fb9 | 1370 | // landaun->SetRange(minE, fMaxRange); |
| 7f759bb7 | 1371 | fFitResults.AddAtAndExpand(new TFitResult(*tr), n-1); |
| 1372 | fFunctions.AddAtAndExpand(landaun, n-1); | |
| 1373 | ||
| 1374 | return landaun; | |
| 1375 | } | |
| 2e658fb9 | 1376 | //____________________________________________________________________ |
| 1377 | TF1* | |
| 1378 | AliForwardUtil::ELossFitter::FitComposite(TH1* dist, Double_t sigman) | |
| 1379 | { | |
| 1380 | // | |
| 1381 | // Fit a composite particle signal to the passed energy loss | |
| a19faec0 | 1382 | // distribution // |
| 2e658fb9 | 1383 | // Parameters: |
| 1384 | // dist Data to fit the function to | |
| 1385 | // sigman If larger than zero, the initial guess of the | |
| 1386 | // detector induced noise. If zero or less, then this | |
| 1387 | // parameter is ignored in the fit (fixed at 0) | |
| 1388 | // | |
| 1389 | // Return: | |
| 1390 | // The function fitted to the data | |
| 1391 | // | |
| 1392 | ||
| 1393 | // Find the fit range | |
| 8449e3e0 | 1394 | Int_t cutBin = TMath::Max(dist->GetXaxis()->FindBin(fLowCut),3); |
| 1395 | Int_t maxBin = TMath::Min(dist->GetXaxis()->FindBin(fMaxRange), | |
| 1396 | dist->GetNbinsX()); | |
| 1397 | dist->GetXaxis()->SetRange(cutBin, maxBin); | |
| 2e658fb9 | 1398 | |
| 1399 | // Get the bin with maximum | |
| 1400 | Int_t peakBin = dist->GetMaximumBin(); | |
| 1401 | Double_t peakE = dist->GetBinLowEdge(peakBin); | |
| 1402 | ||
| 1403 | // Get the low edge | |
| 8449e3e0 | 1404 | // dist->GetXaxis()->SetRangeUser(fLowCut, peakE); |
| 2e658fb9 | 1405 | Int_t minBin = peakBin - fMinusBins; // dist->GetMinimumBin(); |
| 1406 | Double_t minE = TMath::Max(dist->GetBinCenter(minBin),fLowCut); | |
| 1407 | Double_t maxE = dist->GetBinCenter(peakBin+2*fMinusBins); | |
| 1408 | ||
| 1409 | // Get the range in bins and the integral of that range | |
| 1410 | Int_t minEb = dist->GetXaxis()->FindBin(minE); | |
| 1411 | Int_t maxEb = dist->GetXaxis()->FindBin(maxE); | |
| 1412 | Double_t intg = dist->Integral(minEb, maxEb); | |
| 1413 | if (intg <= 0) { | |
| 1414 | ::Warning("Fit1Particle", | |
| 1415 | "Integral of %s between [%f,%f] [%03d,%03d] = %f < 0", | |
| 1416 | dist->GetName(), minE, maxE, minEb, maxEb, intg); | |
| 1417 | return 0; | |
| 1418 | } | |
| 1419 | ||
| 1420 | // Restore the range | |
| 8449e3e0 | 1421 | dist->GetXaxis()->SetRange(1, maxBin); |
| 2e658fb9 | 1422 | |
| 1423 | // Define the function to fit | |
| 1424 | TF1* seed = new TF1("landauSeed", landauGaus1, minE,maxE,kSigmaN+1); | |
| 1425 | ||
| 1426 | // Set initial guesses, parameter names, and limits | |
| 1427 | seed->SetParameters(1,peakE,peakE/10,peakE/5,sigman); | |
| 1428 | seed->SetParNames("C","#Delta_{p}","#xi", "#sigma", "#sigma_{n}"); | |
| 1429 | seed->SetNpx(500); | |
| 1430 | seed->SetParLimits(kDelta, minE, fMaxRange); | |
| 8449e3e0 | 1431 | seed->SetParLimits(kXi, 0.00, 0.1); // Was fMaxRange - too wide |
| 1432 | seed->SetParLimits(kSigma, 1e-5, 0.1); // Was fMaxRange - too wide | |
| 2e658fb9 | 1433 | if (sigman <= 0) seed->FixParameter(kSigmaN, 0); |
| 1434 | else seed->SetParLimits(kSigmaN, 0, fMaxRange); | |
| 1435 | ||
| 1436 | // Do the fit, getting the result object | |
| 81775aba | 1437 | if (fDebug) |
| 1438 | ::Info("FitComposite", "Fitting seed in the range %f,%f", minE, maxE); | |
| e65b8b56 | 1439 | /* TFitResultPtr r = */ dist->Fit(seed, FIT_OPTIONS, "", minE, maxE); |
| 2e658fb9 | 1440 | |
| 1441 | maxE = dist->GetXaxis()->GetXmax(); | |
| 93a63fe1 | 1442 | #if 1 |
| 1443 | TF1* comp = new TF1("composite", landauGausComposite, | |
| 1444 | minE, maxE, kSigma+1+2); | |
| 1445 | comp->SetParNames("C", "#Delta_{p}", "#xi", "#sigma", | |
| 1446 | "C#prime", "#xi#prime"); | |
| 1447 | comp->SetParameters(0.8 * seed->GetParameter(kC), // 0 Primary weight | |
| 1448 | seed->GetParameter(kDelta), // 1 Primary Delta | |
| 1449 | seed->GetParameter(kDelta)/10, // 2 primary Xi | |
| 1450 | seed->GetParameter(kDelta)/5, // 3 primary sigma | |
| 1451 | 1.20 * seed->GetParameter(kC), // 5 Secondary weight | |
| 1452 | seed->GetParameter(kXi)); // 7 secondary Xi | |
| 1453 | // comp->SetParLimits(kC, minE, fMaxRange); // C | |
| 1454 | comp->SetParLimits(kDelta, minE, fMaxRange); // Delta | |
| 1455 | comp->SetParLimits(kXi, 0.00, fMaxRange); // Xi | |
| 1456 | comp->SetParLimits(kSigma, 1e-5, fMaxRange); // Sigma | |
| 1457 | // comp->SetParLimits(kSigma+1, minE, fMaxRange); // C | |
| 1458 | comp->SetParLimits(kSigma+2, 0.00, fMaxRange); // Xi' | |
| 1459 | #else | |
| 2e658fb9 | 1460 | TF1* comp = new TF1("composite", landauGausComposite, |
| 1461 | minE, maxE, kSigma+1+4); | |
| 1462 | comp->SetParNames("C", "#Delta_{p}", "#xi", "#sigma", | |
| 1463 | "C#prime", "#Delta_{p}#prime", "#xi#prime", "#sigma#prim"); | |
| 1464 | comp->SetParameters(0.8 * seed->GetParameter(kC), // 0 Primary weight | |
| 1465 | seed->GetParameter(kDelta), // 1 Primary Delta | |
| 1466 | seed->GetParameter(kDelta)/10, // 2 primary Xi | |
| 1467 | seed->GetParameter(kDelta)/5, // 3 primary sigma | |
| 1468 | 1.20 * seed->GetParameter(kC), // 5 Secondary weight | |
| 1469 | seed->GetParameter(kDelta), // 6 secondary Delta | |
| 1470 | seed->GetParameter(kXi), // 7 secondary Xi | |
| 1471 | seed->GetParameter(kSigma)); // 8 secondary sigma | |
| 2e658fb9 | 1472 | // comp->SetParLimits(kC, minE, fMaxRange); // C |
| 1473 | comp->SetParLimits(kDelta, minE, fMaxRange); // Delta | |
| 1474 | comp->SetParLimits(kXi, 0.00, fMaxRange); // Xi | |
| 1475 | comp->SetParLimits(kSigma, 1e-5, fMaxRange); // Sigma | |
| 1476 | // comp->SetParLimits(kSigma+1, minE, fMaxRange); // C | |
| 1477 | comp->SetParLimits(kSigma+2, minE/10, fMaxRange); // Delta | |
| 1478 | comp->SetParLimits(kSigma+3, 0.00, fMaxRange); // Xi | |
| 1479 | comp->SetParLimits(kSigma+4, 1e-6, fMaxRange); // Sigma | |
| 93a63fe1 | 1480 | #endif |
| 2e658fb9 | 1481 | comp->SetLineColor(kRed+1); |
| 1482 | comp->SetLineWidth(3); | |
| 1483 | ||
| 1484 | // Do the fit, getting the result object | |
| a19faec0 | 1485 | TString opts(Form("%s%s", FIT_OPTIONS, fDebug ? "" : "Q")); |
| 81775aba | 1486 | if (fDebug) |
| 1487 | ::Info("FitComposite", "Fitting composite in the range %f,%f", minE, maxE); | |
| a19faec0 | 1488 | /* TFitResultPtr r = */ dist->Fit(comp, opts, "", minE, maxE); |
| 2e658fb9 | 1489 | |
| 1490 | #if 0 | |
| 1491 | TF1* part1 = static_cast<TF1*>(seed->Clone("part1")); | |
| 1492 | part1->SetLineColor(kGreen+1); | |
| 1493 | part1->SetLineWidth(4); | |
| 1494 | part1->SetRange(minE, maxE); | |
| 1495 | part1->SetParameters(comp->GetParameter(0), // C | |
| 1496 | comp->GetParameter(1), // Delta | |
| 1497 | comp->GetParameter(2), // Xi | |
| 1498 | comp->GetParameter(3), // sigma | |
| 1499 | 0); | |
| 1500 | part1->Save(minE,maxE,0,0,0,0); | |
| 1501 | dist->GetListOfFunctions()->Add(part1); | |
| 1502 | ||
| 1503 | TF1* part2 = static_cast<TF1*>(seed->Clone("part2")); | |
| 1504 | part2->SetLineColor(kBlue+1); | |
| 1505 | part2->SetLineWidth(4); | |
| 1506 | part2->SetRange(minE, maxE); | |
| 1507 | part2->SetParameters(comp->GetParameter(4), // C | |
| 1508 | comp->GetParameter(5), // Delta | |
| 1509 | comp->GetParameter(6), // Xi | |
| 1510 | comp->GetParameter(7), // sigma | |
| 1511 | 0); | |
| 1512 | part2->Save(minE,maxE,0,0,0,0); | |
| 1513 | dist->GetListOfFunctions()->Add(part2); | |
| 1514 | #endif | |
| 1515 | return comp; | |
| 1516 | } | |
| a19faec0 | 1517 | #endif |
| 7e4038b5 | 1518 | |
| 1519 | //==================================================================== | |
| 1520 | AliForwardUtil::Histos::~Histos() | |
| 1521 | { | |
| 7984e5f7 | 1522 | // |
| 1523 | // Destructor | |
| 1524 | // | |
| b7ab8a2c | 1525 | } |
| 1526 | ||
| 1527 | //____________________________________________________________________ | |
| 1528 | void | |
| 1529 | AliForwardUtil::Histos::Delete(Option_t* opt) | |
| 1530 | { | |
| 7e4038b5 | 1531 | if (fFMD1i) delete fFMD1i; |
| 1532 | if (fFMD2i) delete fFMD2i; | |
| 1533 | if (fFMD2o) delete fFMD2o; | |
| 1534 | if (fFMD3i) delete fFMD3i; | |
| 1535 | if (fFMD3o) delete fFMD3o; | |
| b7ab8a2c | 1536 | fFMD1i = 0; |
| 1537 | fFMD2i = 0; | |
| 1538 | fFMD2o = 0; | |
| 1539 | fFMD3i = 0; | |
| 1540 | fFMD3o = 0; | |
| 1541 | TObject::Delete(opt); | |
| 7e4038b5 | 1542 | } |
| 1543 | ||
| 1544 | //____________________________________________________________________ | |
| 1545 | TH2D* | |
| 8449e3e0 | 1546 | AliForwardUtil::Histos::Make(UShort_t d, Char_t r, const TAxis& etaAxis) |
| 7e4038b5 | 1547 | { |
| 7984e5f7 | 1548 | // |
| 1549 | // Make a histogram | |
| 1550 | // | |
| 1551 | // Parameters: | |
| 1552 | // d Detector | |
| 1553 | // r Ring | |
| 1554 | // etaAxis Eta axis to use | |
| 1555 | // | |
| 1556 | // Return: | |
| 1557 | // Newly allocated histogram | |
| 1558 | // | |
| 7e4038b5 | 1559 | Int_t ns = (r == 'I' || r == 'i') ? 20 : 40; |
| 8449e3e0 | 1560 | TH2D* hist = 0; |
| 1561 | if (etaAxis.GetXbins() && etaAxis.GetXbins()->GetArray()) | |
| 1562 | hist = new TH2D(Form("FMD%d%c_cache", d, r), | |
| 1563 | Form("FMD%d%c cache", d, r), | |
| 1564 | etaAxis.GetNbins(), etaAxis.GetXbins()->GetArray(), | |
| 1565 | ns, 0, TMath::TwoPi()); | |
| 1566 | else | |
| 1567 | hist = new TH2D(Form("FMD%d%c_cache", d, r), | |
| 1568 | Form("FMD%d%c cache", d, r), | |
| 1569 | etaAxis.GetNbins(), etaAxis.GetXmin(), | |
| 1570 | etaAxis.GetXmax(), ns, 0, TMath::TwoPi()); | |
| 7e4038b5 | 1571 | hist->SetXTitle("#eta"); |
| 1572 | hist->SetYTitle("#phi [radians]"); | |
| 1573 | hist->SetZTitle("d^{2}N_{ch}/d#etad#phi"); | |
| 1574 | hist->Sumw2(); | |
| 1575 | hist->SetDirectory(0); | |
| 1576 | ||
| 1577 | return hist; | |
| 1578 | } | |
| 8449e3e0 | 1579 | //____________________________________________________________________ |
| 1580 | void | |
| 1581 | AliForwardUtil::Histos::RebinEta(TH2D* hist, const TAxis& etaAxis) | |
| 1582 | { | |
| 1583 | TAxis* xAxis = hist->GetXaxis(); | |
| 1584 | if (etaAxis.GetXbins() && etaAxis.GetXbins()->GetArray()) | |
| 1585 | xAxis->Set(etaAxis.GetNbins(), etaAxis.GetXbins()->GetArray()); | |
| 1586 | else | |
| 1587 | xAxis->Set(etaAxis.GetNbins(), etaAxis.GetXmin(), etaAxis.GetXmax()); | |
| 1588 | hist->Rebuild(); | |
| 1589 | } | |
| 1590 | ||
| 1591 | ||
| 7e4038b5 | 1592 | //____________________________________________________________________ |
| 1593 | void | |
| 1594 | AliForwardUtil::Histos::Init(const TAxis& etaAxis) | |
| 1595 | { | |
| 7984e5f7 | 1596 | // |
| 1597 | // Initialize the object | |
| 1598 | // | |
| 1599 | // Parameters: | |
| 1600 | // etaAxis Eta axis to use | |
| 1601 | // | |
| 7e4038b5 | 1602 | fFMD1i = Make(1, 'I', etaAxis); |
| 1603 | fFMD2i = Make(2, 'I', etaAxis); | |
| 1604 | fFMD2o = Make(2, 'O', etaAxis); | |
| 1605 | fFMD3i = Make(3, 'I', etaAxis); | |
| 1606 | fFMD3o = Make(3, 'O', etaAxis); | |
| 1607 | } | |
| 8449e3e0 | 1608 | //____________________________________________________________________ |
| 1609 | void | |
| 1610 | AliForwardUtil::Histos::ReInit(const TAxis& etaAxis) | |
| 1611 | { | |
| 1612 | // | |
| 1613 | // Initialize the object | |
| 1614 | // | |
| 1615 | // Parameters: | |
| 1616 | // etaAxis Eta axis to use | |
| 1617 | // | |
| 93a63fe1 | 1618 | if (!fFMD1i) fFMD1i = Make(1, 'i', etaAxis); else RebinEta(fFMD1i, etaAxis); |
| 1619 | if (!fFMD2i) fFMD2i = Make(2, 'i', etaAxis); else RebinEta(fFMD2i, etaAxis); | |
| 1620 | if (!fFMD2o) fFMD2o = Make(2, 'o', etaAxis); else RebinEta(fFMD2o, etaAxis); | |
| 1621 | if (!fFMD3i) fFMD3i = Make(3, 'i', etaAxis); else RebinEta(fFMD3i, etaAxis); | |
| 1622 | if (!fFMD3o) fFMD3o = Make(3, 'o', etaAxis); else RebinEta(fFMD3o, etaAxis); | |
| 8449e3e0 | 1623 | } |
| 1624 | ||
| 7e4038b5 | 1625 | //____________________________________________________________________ |
| 1626 | void | |
| 1627 | AliForwardUtil::Histos::Clear(Option_t* option) | |
| 1628 | { | |
| 7984e5f7 | 1629 | // |
| 1630 | // Clear data | |
| 1631 | // | |
| 1632 | // Parameters: | |
| 1633 | // option Not used | |
| 1634 | // | |
| 77f97e3f CHC |
1635 | if (fFMD1i) { fFMD1i->Reset(option); fFMD1i->ResetBit(kSkipRing); } |
| 1636 | if (fFMD2i) { fFMD2i->Reset(option); fFMD2i->ResetBit(kSkipRing); } | |
| 1637 | if (fFMD2o) { fFMD2o->Reset(option); fFMD2o->ResetBit(kSkipRing); } | |
| 1638 | if (fFMD3i) { fFMD3i->Reset(option); fFMD3i->ResetBit(kSkipRing); } | |
| 1639 | if (fFMD3o) { fFMD3o->Reset(option); fFMD3o->ResetBit(kSkipRing); } | |
| 7e4038b5 | 1640 | } |
| 1641 | ||
| 1642 | //____________________________________________________________________ | |
| 1643 | TH2D* | |
| 1644 | AliForwardUtil::Histos::Get(UShort_t d, Char_t r) const | |
| 1645 | { | |
| 7984e5f7 | 1646 | // |
| 1647 | // Get the histogram for a particular detector,ring | |
| 1648 | // | |
| 1649 | // Parameters: | |
| 1650 | // d Detector | |
| 1651 | // r Ring | |
| 1652 | // | |
| 1653 | // Return: | |
| 1654 | // Histogram for detector,ring or nul | |
| 1655 | // | |
| 7e4038b5 | 1656 | switch (d) { |
| 1657 | case 1: return fFMD1i; | |
| 1658 | case 2: return (r == 'I' || r == 'i' ? fFMD2i : fFMD2o); | |
| 1659 | case 3: return (r == 'I' || r == 'i' ? fFMD3i : fFMD3o); | |
| 1660 | } | |
| 1661 | return 0; | |
| 1662 | } | |
| 9d99b0dd | 1663 | //==================================================================== |
| 1664 | TList* | |
| 1665 | AliForwardUtil::RingHistos::DefineOutputList(TList* d) const | |
| 1666 | { | |
| 7984e5f7 | 1667 | // |
| 1668 | // Define the outout list in @a d | |
| 1669 | // | |
| 1670 | // Parameters: | |
| 1671 | // d Where to put the output list | |
| 1672 | // | |
| 1673 | // Return: | |
| 1674 | // Newly allocated TList object or null | |
| 1675 | // | |
| 9d99b0dd | 1676 | if (!d) return 0; |
| 1677 | TList* list = new TList; | |
| 5bb5d1f6 | 1678 | list->SetOwner(); |
| 9d99b0dd | 1679 | list->SetName(fName.Data()); |
| 1680 | d->Add(list); | |
| 1681 | return list; | |
| 1682 | } | |
| 1683 | //____________________________________________________________________ | |
| 1684 | TList* | |
| fb3430ac | 1685 | AliForwardUtil::RingHistos::GetOutputList(const TList* d) const |
| 9d99b0dd | 1686 | { |
| 7984e5f7 | 1687 | // |
| 1688 | // Get our output list from the container @a d | |
| 1689 | // | |
| 1690 | // Parameters: | |
| 1691 | // d where to get the output list from | |
| 1692 | // | |
| 1693 | // Return: | |
| 1694 | // The found TList or null | |
| 1695 | // | |
| 9d99b0dd | 1696 | if (!d) return 0; |
| 1697 | TList* list = static_cast<TList*>(d->FindObject(fName.Data())); | |
| 1698 | return list; | |
| 1699 | } | |
| 1700 | ||
| 1701 | //____________________________________________________________________ | |
| 1702 | TH1* | |
| fb3430ac | 1703 | AliForwardUtil::RingHistos::GetOutputHist(const TList* d, const char* name) const |
| 9d99b0dd | 1704 | { |
| 7984e5f7 | 1705 | // |
| 1706 | // Find a specific histogram in the source list @a d | |
| 1707 | // | |
| 1708 | // Parameters: | |
| 1709 | // d (top)-container | |
| 1710 | // name Name of histogram | |
| 1711 | // | |
| 1712 | // Return: | |
| 1713 | // Found histogram or null | |
| 1714 | // | |
| 9d99b0dd | 1715 | return static_cast<TH1*>(d->FindObject(name)); |
| 1716 | } | |
| 1717 | ||
| f53fb4f6 | 1718 | //==================================================================== |
| 1719 | AliForwardUtil::DebugGuard::DebugGuard(Int_t lvl, Int_t msgLvl, | |
| 1720 | const char* format, ...) | |
| 1721 | : fMsg("") | |
| 1722 | { | |
| 1723 | if (lvl < msgLvl) return; | |
| 1724 | va_list ap; | |
| 1725 | va_start(ap, format); | |
| 81a9a914 | 1726 | Format(fMsg, format, ap); |
| f53fb4f6 | 1727 | va_end(ap); |
| 81a9a914 | 1728 | Output(+1, fMsg); |
| f53fb4f6 | 1729 | } |
| 1730 | //____________________________________________________________________ | |
| 1731 | AliForwardUtil::DebugGuard::~DebugGuard() | |
| 1732 | { | |
| 1733 | if (fMsg.IsNull()) return; | |
| 81a9a914 | 1734 | Output(-1, fMsg); |
| 1735 | } | |
| 1736 | //____________________________________________________________________ | |
| 1737 | void | |
| 1738 | AliForwardUtil::DebugGuard::Message(Int_t lvl, Int_t msgLvl, | |
| 1739 | const char* format, ...) | |
| 1740 | { | |
| 1741 | if (lvl < msgLvl) return; | |
| 1742 | TString msg; | |
| 1743 | va_list ap; | |
| 1744 | va_start(ap, format); | |
| 1745 | Format(msg, format, ap); | |
| 1746 | va_end(ap); | |
| 1747 | Output(0, msg); | |
| 1748 | } | |
| 1749 | ||
| 1750 | //____________________________________________________________________ | |
| 1751 | void | |
| 1752 | AliForwardUtil::DebugGuard::Format(TString& out, const char* format, va_list ap) | |
| 1753 | { | |
| 1754 | static char buf[512]; | |
| 1755 | Int_t n = gROOT->GetDirLevel() + 2; | |
| 1756 | for (Int_t i = 0; i < n; i++) buf[i] = ' '; | |
| 1757 | vsnprintf(&(buf[n]), 511-n, format, ap); | |
| 1758 | buf[511] = '\0'; | |
| 1759 | out = buf; | |
| f53fb4f6 | 1760 | } |
| 1761 | //____________________________________________________________________ | |
| 1762 | void | |
| 81a9a914 | 1763 | AliForwardUtil::DebugGuard::Output(int in, TString& msg) |
| f53fb4f6 | 1764 | { |
| 81a9a914 | 1765 | msg[0] = (in > 0 ? '>' : in < 0 ? '<' : '='); |
| 1766 | AliLog::Message(AliLog::kInfo, msg, 0, 0, "PWGLF/forward", 0, 0); | |
| 1767 | if (in > 0) gROOT->IncreaseDirLevel(); | |
| 1768 | else if (in < 0) gROOT->DecreaseDirLevel(); | |
| f53fb4f6 | 1769 | } |
| 1770 | ||
| 1771 | ||
| 1772 | ||
| 7e4038b5 | 1773 | // |
| 1774 | // EOF | |
| 1775 | // |