X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=FMD%2FAliFMDReconstructor.cxx;h=38bf2945ade2ca479d7c0f32854d2571995a3076;hb=5cd0300da778506ef3000401af16842eba517dc0;hp=6cf371cc0e5f90c71d5741400041f111dc482a59;hpb=5cf05dbbfae57642fb7488402fb5ed9983167db4;p=u%2Fmrichter%2FAliRoot.git diff --git a/FMD/AliFMDReconstructor.cxx b/FMD/AliFMDReconstructor.cxx index 6cf371cc0e5..38bf2945ade 100644 --- a/FMD/AliFMDReconstructor.cxx +++ b/FMD/AliFMDReconstructor.cxx @@ -1,3 +1,16 @@ +//____________________________________________________________________ +// +// This is a class that constructs AliFMDRecPoint objects from of Digits +// This class reads either digits from a TClonesArray or raw data from +// a DDL file (or similar), and stores the read ADC counts in an +// internal cache (fAdcs). The rec-points are made via the naiive +// method. +// +//-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia +// Latest changes by Christian Holm Christensen +// +// +//____________________________________________________________________ /************************************************************************** * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * * @@ -13,24 +26,12 @@ * provided "as is" without express or implied warranty. * **************************************************************************/ /* $Id$ */ -/** @file AliFMDReconstructor.cxx - @author Christian Holm Christensen - @date Mon Mar 27 12:47:09 2006 - @brief FMD reconstruction +/** + * @file AliFMDReconstructor.cxx + * @author Christian Holm Christensen + * @date Mon Mar 27 12:47:09 2006 + * @brief FMD reconstruction */ -//____________________________________________________________________ -// -// This is a class that constructs AliFMDRecPoint objects from of Digits -// This class reads either digits from a TClonesArray or raw data from -// a DDL file (or similar), and stores the read ADC counts in an -// internal cache (fAdcs). The rec-points are made via the naiive -// method. -// -//-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia -// Latest changes by Christian Holm Christensen -// -// -//____________________________________________________________________ // #include // ALILOG_H // #include // ALIRUN_H @@ -39,17 +40,22 @@ #include "AliFMDParameters.h" // ALIFMDPARAMETERS_H #include "AliFMDAltroMapping.h" // ALIFMDALTROMAPPING_H #include "AliFMDDigit.h" // ALIFMDDIGIT_H +#include "AliFMDSDigit.h" // ALIFMDDIGIT_H #include "AliFMDReconstructor.h" // ALIFMDRECONSTRUCTOR_H +#include "AliFMDRecoParam.h" // ALIFMDRECOPARAM_H #include "AliFMDRawReader.h" // ALIFMDRAWREADER_H #include "AliFMDRecPoint.h" // ALIFMDMULTNAIIVE_H #include "AliESDEvent.h" // ALIESDEVENT_H #include "AliESDVertex.h" // ALIESDVERTEX_H +#include "AliESDTZERO.h" // ALIESDVERTEX_H #include // ALIESDFMD_H #include #include #include #include #include +#include "AliFMDESDRevertexer.h" + class AliRawReader; @@ -71,64 +77,23 @@ AliFMDReconstructor::AliFMDReconstructor() fAngleCorrect(kTRUE), fVertexType(kNoVertex), fESD(0x0), - fDiagnostics(kTRUE), + fDiagnostics(kFALSE), fDiagStep1(0), fDiagStep2(0), fDiagStep3(0), fDiagStep4(0), - fDiagAll(0) + fDiagAll(0), + fBad(0), + fZombie(false) { // Make a new FMD reconstructor object - default CTOR. SetNoiseFactor(); SetAngleCorrect(); if (AliDebugLevel() > 0) fDiagnostics = kTRUE; -} - - -//____________________________________________________________________ -AliFMDReconstructor::AliFMDReconstructor(const AliFMDReconstructor& other) - : AliReconstructor(), - fMult(other.fMult), - fNMult(other.fNMult), - fTreeR(other.fTreeR), - fCurrentVertex(other.fCurrentVertex), - fESDObj(other.fESDObj), - fNoiseFactor(other.fNoiseFactor), - fAngleCorrect(other.fAngleCorrect), - fVertexType(other.fVertexType), - fESD(other.fESD), - fDiagnostics(other.fDiagnostics), - fDiagStep1(other.fDiagStep1), - fDiagStep2(other.fDiagStep2), - fDiagStep3(other.fDiagStep3), - fDiagStep4(other.fDiagStep4), - fDiagAll(other.fDiagAll) -{ - // Copy constructor -} - - -//____________________________________________________________________ -AliFMDReconstructor& -AliFMDReconstructor::operator=(const AliFMDReconstructor& other) -{ - // Assignment operator - fMult = other.fMult; - fNMult = other.fNMult; - fTreeR = other.fTreeR; - fCurrentVertex = other.fCurrentVertex; - fESDObj = other.fESDObj; - fNoiseFactor = other.fNoiseFactor; - fAngleCorrect = other.fAngleCorrect; - fVertexType = other.fVertexType; - fESD = other.fESD; - fDiagnostics = other.fDiagnostics; - fDiagStep1 = other.fDiagStep1; - fDiagStep2 = other.fDiagStep2; - fDiagStep3 = other.fDiagStep3; - fDiagStep4 = other.fDiagStep4; - fDiagAll = other.fDiagAll; - return *this; + for(Int_t det = 1; det<=3; det++) { + fZS[det-1] = kFALSE; + fZSFactor[det-1] = 0; + } } //____________________________________________________________________ @@ -153,44 +118,59 @@ AliFMDReconstructor::Init() // Initialize the parameters AliFMDParameters* param = AliFMDParameters::Instance(); - param->Init(); + if (param->Init() != 0) { + AliError("Failed to initialize parameters, making zombie"); + fZombie = true; + } + else + fZombie = false; // Current vertex position fCurrentVertex = 0; // Create array of reconstructed strip multiplicities - fMult = new TClonesArray("AliFMDRecPoint", 51200); + // fMult = new TClonesArray("AliFMDRecPoint", 51200); // Create ESD output object fESDObj = new AliESDFMD; // Check if we need diagnostics histograms if (!fDiagnostics) return; AliInfo("Making diagnostics histograms"); - fDiagStep1 = new TH2I("diagStep1", "Read ADC vs. Noise surpressed ADC", - 1024, -.5, 1023.5, 1024, -.5, 1023.5); - fDiagStep1->SetDirectory(0); - fDiagStep1->GetXaxis()->SetTitle("ADC (read)"); - fDiagStep1->GetYaxis()->SetTitle(Form("ADC (noise surpressed %4.f)", - fNoiseFactor)); - fDiagStep2 = new TH2F("diagStep2", "ADC vs Edep deduced", - 1024, -.5, 1023.5, 100, 0, 2); - fDiagStep2->SetDirectory(0); - fDiagStep2->GetXaxis()->SetTitle("ADC (noise surpressed)"); - fDiagStep2->GetYaxis()->SetTitle("#Delta E [GeV]"); - fDiagStep3 = new TH2F("diagStep3", "Edep vs Edep path corrected", - 100, 0., 2., 100, 0., 2.); - fDiagStep3->SetDirectory(0); - fDiagStep3->GetXaxis()->SetTitle("#Delta E [GeV]"); - fDiagStep3->GetYaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); - fDiagStep4 = new TH2F("diagStep4", "Edep vs Multiplicity deduced", - 100, 0., 2., 100, -.1, 19.9); - fDiagStep4->SetDirectory(0); - fDiagStep4->GetXaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); - fDiagStep4->GetYaxis()->SetTitle("Multiplicity"); - fDiagAll = new TH2F("diagAll", "Read ADC vs Multiplicity deduced", - 1024, -.5, 1023.5, 100, -.1, 19.9); - fDiagAll->SetDirectory(0); - fDiagAll->GetXaxis()->SetTitle("ADC (read)"); - fDiagAll->GetYaxis()->SetTitle("Multiplicity"); + if (!fDiagStep1) { + fDiagStep1 = new TH2I("diagStep1", "Read ADC vs. Noise surpressed ADC", + 1024, -.5, 1023.5, 1024, -.5, 1023.5); + fDiagStep1->SetDirectory(0); + fDiagStep1->GetXaxis()->SetTitle("ADC (read)"); + fDiagStep1->GetYaxis()->SetTitle(Form("ADC (noise surpressed %4.f)", + fNoiseFactor)); + } + if (!fDiagStep2) { + fDiagStep2 = new TH2F("diagStep2", "ADC vs Edep deduced", + 1024, -.5, 1023.5, 100, 0, 2); + fDiagStep2->SetDirectory(0); + fDiagStep2->GetXaxis()->SetTitle("ADC (noise surpressed)"); + fDiagStep2->GetYaxis()->SetTitle("#Delta E [GeV]"); + } + if (!fDiagStep3) { + fDiagStep3 = new TH2F("diagStep3", "Edep vs Edep path corrected", + 100, 0., 2., 100, 0., 2.); + fDiagStep3->SetDirectory(0); + fDiagStep3->GetXaxis()->SetTitle("#Delta E [GeV]"); + fDiagStep3->GetYaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); + } + if (!fDiagStep4) { + fDiagStep4 = new TH2F("diagStep4", "Edep vs Multiplicity deduced", + 100, 0., 2., 100, -.1, 19.9); + fDiagStep4->SetDirectory(0); + fDiagStep4->GetXaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); + fDiagStep4->GetYaxis()->SetTitle("Multiplicity"); + fDiagAll = new TH2F("diagAll", "Read ADC vs Multiplicity deduced", + 1024, -.5, 1023.5, 100, -.1, 19.9); + } + if (fDiagAll) { + fDiagAll->SetDirectory(0); + fDiagAll->GetXaxis()->SetTitle("ADC (read)"); + fDiagAll->GetYaxis()->SetTitle("Multiplicity"); + } } //____________________________________________________________________ @@ -199,57 +179,294 @@ AliFMDReconstructor::ConvertDigits(AliRawReader* reader, TTree* digitsTree) const { // Convert Raw digits to AliFMDDigit's in a tree - AliFMDDebug(2, ("Reading raw data into digits tree")); + if (fZombie) { + AliWarning("I'm a zombie - cannot do anything"); + return; + } + AliFMDDebug(1, ("Reading raw data into digits tree")); + if (!digitsTree) { + AliError("No digits tree passed"); + return; + } + static TClonesArray* array = 0; + if (!array) array = new TClonesArray("AliFMDDigit"); + digitsTree->Branch("FMD", &array); + array->Clear(); + AliFMDRawReader rawRead(reader, digitsTree); // rawRead.SetSampleRate(fFMD->GetSampleRate()); - rawRead.Exec(); + // rawRead.Exec(); + rawRead.ReadAdcs(array); + + Int_t nWrite = digitsTree->Fill(); + AliDebugF(1, "Got a grand total of %d digits, wrote %d bytes to tree", + array->GetEntriesFast(), nWrite); + + AliFMDAltroMapping* map = AliFMDParameters::Instance()->GetAltroMap(); - for (size_t i = 1; i <= 3; i++) { - fZS[i] = rawRead.IsZeroSuppressed(map->Detector2DDL(i)); - fZSFactor[i] = rawRead.NoiseFactor(map->Detector2DDL(i)); + for (UShort_t i = 1; i <= 3; i++) { + fZS[i-1] = rawRead.IsZeroSuppressed(map->Detector2DDL(i)); + fZSFactor[i-1] = rawRead.NoiseFactor(map->Detector2DDL(i)); + AliDebugF(2, "Noise factor for FMD%hu: %d", i, fZSFactor[i-1]); } } //____________________________________________________________________ void -AliFMDReconstructor::GetVertex() const +AliFMDReconstructor::GetVertex(AliESDEvent* esd) const { // Return the vertex to use. // This is obtained from the ESD object. // If not found, a warning is issued. fVertexType = kNoVertex; fCurrentVertex = 0; - if (fESD) { - const AliESDVertex* vertex = fESD->GetVertex(); - if (vertex) { - AliFMDDebug(2, ("Got vertex from ESD: %f", vertex->GetZv())); - fCurrentVertex = vertex->GetZv(); - fVertexType = kESDVertex; - return; - } + if (!esd) return; + + const AliESDVertex* vertex = esd->GetPrimaryVertex(); + if (!vertex) vertex = esd->GetPrimaryVertexSPD(); + if (!vertex) vertex = esd->GetPrimaryVertexTPC(); + if (!vertex) vertex = esd->GetVertex(); + + if (vertex) { + AliFMDDebug(2, ("Got %s (%s) from ESD: %f", + vertex->GetName(), vertex->GetTitle(), vertex->GetZv())); + fCurrentVertex = vertex->GetZv(); + fVertexType = kESDVertex; + return; + } + else if (esd->GetESDTZERO()) { + AliFMDDebug(2, ("Got primary vertex from T0: %f", esd->GetT0zVertex())); + fCurrentVertex = esd->GetT0zVertex(); + fVertexType = kESDVertex; + return; } AliWarning("Didn't get any vertex from ESD or generator"); } +//____________________________________________________________________ +Int_t +AliFMDReconstructor::GetIdentifier() const +{ + // Get the detector identifier. + // Note the actual value is cached so that we do not + // need to do many expensive string comparisons. + static Int_t idx = AliReconstruction::GetDetIndex(GetDetectorName()); + return idx; +} + +//____________________________________________________________________ +const AliFMDRecoParam* +AliFMDReconstructor::GetParameters() const +{ + // Get the reconstruction parameters. + // + // Return: + // Pointer to reconstruction parameters or null if not found or wrong type + Int_t iDet = GetIdentifier(); // Was 12 - but changed on Cvetans request + const AliDetectorRecoParam* params = AliReconstructor::GetRecoParam(iDet); + if (!params || params->IsA() != AliFMDRecoParam::Class()) return 0; + return static_cast(params); +} + +//____________________________________________________________________ +void +AliFMDReconstructor::UseRecoParam(Bool_t set) const +{ + // + // Set-up reconstructor to use values from reconstruction + // parameters, if present, for this event. If the argument @a set + // is @c false, then restore preset values. + // + // Parameters: + // set + // + static Float_t savedNoiseFactor = fNoiseFactor; + static Bool_t savedAngleCorrect = fAngleCorrect; + if (set) { + const AliFMDRecoParam* params = GetParameters(); + if (params) { + fNoiseFactor = params->NoiseFactor(); + fAngleCorrect = params->AngleCorrect(); + } + return; + } + fNoiseFactor = savedNoiseFactor; + fAngleCorrect = savedAngleCorrect; +} + + +//____________________________________________________________________ +void +AliFMDReconstructor::MarkDeadChannels(AliESDFMD* esd) const +{ + // Loop over all entries of the ESD and mark + // those that are dead as such + // - otherwise put in the zero signal. + AliFMDParameters* param = AliFMDParameters::Instance(); + + for (UShort_t d = 1; d <= 3; d++) { + UShort_t nR = (d == 1 ? 1 : 2); + + for (UShort_t q = 0; q < nR; q++) { + Char_t r = (q == 0 ? 'I' : 'O'); + UShort_t nS = (q == 0 ? 20 : 40); + UShort_t nT = (q == 0 ? 512 : 256); + + for (UShort_t s = 0; s < nS; s++) { + for (UShort_t t = 0; t < nT; t++) { + // A strip can be marked `bad' for two reasons: + // + // - The raw reader fails to read the value + // - The strip is marked in OCDB as bad (IsDead) + // + // Hence, a dead strip will always be marked kInvalid here, + // while a non-dead bad-read strip will be filled with 0. + if (fBad(d, r, s, t)) { + AliDebugF(5, "Marking FMD%d%c[%2d,%3d] as bad", d, r, s, t); + esd->SetMultiplicity(d, r, s, t, AliESDFMD::kInvalidMult); + } + if (param->IsDead(d, r, s, t)) { + AliDebugF(5, "Marking FMD%d%c[%2d,%3d] as dead", d, r, s, t); + esd->SetMultiplicity(d, r, s, t, AliESDFMD::kInvalidMult); + // esd->SetEta(d, r, s, t, AliESDFMD::kInvalidEta); + } + else if (esd->Multiplicity(d, r, s, t) == AliESDFMD::kInvalidMult) { + AliDebugF(20, "Setting null signal in FMD%d%c[%2d,%3d]", + d, r, s, t); + esd->SetMultiplicity(d, r, s, t, 0); + } + else { + AliDebugF(10, "Setting FMD%d%c[%2d,%3d]=%f",d,r,s,t, + esd->Multiplicity(d, r, s, t)); + } + } + } + } + } +} + +//____________________________________________________________________ +Bool_t +AliFMDReconstructor::PreReconstruct() const +{ + AliFMDDebug(1, ("Before reoconstructing")); + if (fZombie) { + AliWarning("I'm a zombie - cannot do anything"); + return false; + } + + // Get our vertex + GetVertex(fESD); + + // Reset bad flags + fBad.Reset(false); + + // Reset the output ESD + if (fESDObj) { + fESDObj->Clear(); + + // Pre-set eta values + for (UShort_t d=1; d<=3; d++) { + UShort_t nQ = (d == 1 ? 1 : 2); + for (UShort_t q=0; qSetEta(d, r, 0, t, eta); + } + } + } + } + + + return true; +} + +//____________________________________________________________________ +void +AliFMDReconstructor::Reconstruct(AliFMDRawReader& rawReader) const +{ + // Reconstruct directly from raw data (no intermediate output on + // digit tree or rec point tree). + // + // Parameters: + // rawReader FMD Raw event reader + AliFMDDebug(1, ("Reconstructing from FMD raw reader")); + if (!PreReconstruct()) return; + + UShort_t det, sec, str, fac; + Short_t adc, oldDet = -1; + Bool_t zs; + Char_t rng; + + UseRecoParam(kTRUE); + while (rawReader.NextSignal(det, rng, sec, str, adc, zs, fac)) { + if (det != oldDet) { + fZS[det-1] = zs; + fZSFactor[det-1] = fac; + oldDet = det; + } + ProcessSignal(det, rng, sec, str, adc); + } + UseRecoParam(kFALSE); + +} //____________________________________________________________________ void -AliFMDReconstructor::Reconstruct(AliRawReader* /*reader*/, TTree*) const +AliFMDReconstructor::Reconstruct(AliRawReader* reader, TTree*) const { // Reconstruct directly from raw data (no intermediate output on // digit tree or rec point tree). + // + // Parameters: + // reader Raw event reader + // ctree Not used - 'cluster tree' to store rec-points in. + AliFMDDebug(1, ("Reconstructing from raw reader")); + if (fZombie) { + AliWarning("I'm a zombie - cannot do anything"); + return; + } + AliFMDRawReader rawReader(reader, 0); + Reconstruct(rawReader); +} + +//____________________________________________________________________ +void +AliFMDReconstructor::Digitize(AliRawReader* reader, TClonesArray* sdigits) const +{ + // Reconstruct directly from raw data (no intermediate output on + // digit tree or rec point tree). + // // Parameters: // reader Raw event reader // ctree Not used. - AliError("Method is not used"); -#if 0 - TClonesArray* array = new TClonesArray("AliFMDDigit"); - AliFMDRawReader rawRead(reader, 0); - rawRead.ReadAdcs(array); - ProcessDigits(array); - array->Delete(); - delete array; -#endif + if (fZombie) { + AliWarning("I'm a zombie - cannot do anything"); + return; + } + AliFMDRawReader rawReader(reader, 0); + + UShort_t det, sec, str, sam, rat, fac; + Short_t adc, oldDet = -1; + Bool_t zs; + Char_t rng; + + UseRecoParam(kTRUE); + while (rawReader.NextSample(det, rng, sec, str, sam, rat, adc, zs, fac)) { + if (!rawReader.SelectSample(sam, rat)) continue; + if (det != oldDet) { + fZS[det-1] = zs; + fZSFactor[det-1] = fac; + oldDet = det; + } + DigitizeSignal(sdigits, det, rng, sec, str, sam, adc); + } + UseRecoParam(kFALSE); } //____________________________________________________________________ @@ -261,37 +478,75 @@ AliFMDReconstructor::Reconstruct(TTree* digitsTree, // Get the FMD branch holding the digits. // FIXME: The vertex may not be known yet, so we may have to move // some of this to FillESD. - AliFMDDebug(2, ("Reconstructing from digits in a tree")); - GetVertex(); + // + // Parameters: + // digitsTree Pointer to a tree containing digits + // clusterTree Pointer to output tree + // + if (!PreReconstruct()) return; + + if (!fMult) fMult = new TClonesArray("AliFMDRecPoint"); + + AliFMDDebug(1, ("Reconstructing from digits in a tree")); - TBranch *digitBranch = digitsTree->GetBranch("FMD"); + // Get the digitis array + static TClonesArray* digits = new TClonesArray("AliFMDDigit"); + TBranch* digitBranch = digitsTree->GetBranch("FMD"); if (!digitBranch) { Error("Exec", "No digit branch for the FMD found"); return; } - TClonesArray* digits = new TClonesArray("AliFMDDigit"); digitBranch->SetAddress(&digits); + if (digits) digits->Clear(); if (fMult) fMult->Clear(); - if (fESDObj) fESDObj->Clear(); - + + // Create rec-point output branch fNMult = 0; fTreeR = clusterTree; fTreeR->Branch("FMD", &fMult); - AliFMDDebug(5, ("Getting entry 0 from digit branch")); + AliDebug(5, "Getting entry 0 from digit branch"); digitBranch->GetEntry(0); - AliFMDDebug(5, ("Processing digits")); + AliDebugF(5, "Processing %d digits", digits->GetEntriesFast()); + UseRecoParam(kTRUE); ProcessDigits(digits); + UseRecoParam(kFALSE); Int_t written = clusterTree->Fill(); AliFMDDebug(10, ("Filled %d bytes into cluster tree", written)); - digits->Delete(); - delete digits; + // digits->Delete(); + // delete digits; } +//____________________________________________________________________ +void +AliFMDReconstructor::ProcessDigits(TClonesArray* digits, + const AliFMDRawReader& rawRead) const +{ + // For each digit, find the pseudo rapdity, azimuthal angle, and + // number of corrected ADC counts, and pass it on to the algorithms + // used. + // + // Parameters: + // digits Array of digits + // + if (fZombie) { + AliWarning("I'm a zombie - cannot do anything"); + return; + } + AliFMDAltroMapping* map = AliFMDParameters::Instance()->GetAltroMap(); + for (size_t i = 1; i <= 3; i++) { + fZS[i-1] = rawRead.IsZeroSuppressed(map->Detector2DDL(i)); + fZSFactor[i-1] = rawRead.NoiseFactor(map->Detector2DDL(i)); + } + UseRecoParam(kTRUE); + ProcessDigits(digits); + UseRecoParam(kFALSE); +} + //____________________________________________________________________ void AliFMDReconstructor::ProcessDigits(TClonesArray* digits) const @@ -299,113 +554,285 @@ AliFMDReconstructor::ProcessDigits(TClonesArray* digits) const // For each digit, find the pseudo rapdity, azimuthal angle, and // number of corrected ADC counts, and pass it on to the algorithms // used. + // + // Parameters: + // digits Array of digits + // Int_t nDigits = digits->GetEntries(); - AliFMDDebug(1, ("Got %d digits", nDigits)); + AliFMDDebug(2, ("Got %d digits", nDigits)); fESDObj->SetNoiseFactor(fNoiseFactor); fESDObj->SetAngleCorrected(fAngleCorrect); + fBad.Reset(false); for (Int_t i = 0; i < nDigits; i++) { AliFMDDigit* digit = static_cast(digits->At(i)); - AliFMDParameters* param = AliFMDParameters::Instance(); - // Check that the strip is not marked as dead - if (param->IsDead(digit->Detector(), digit->Ring(), - digit->Sector(), digit->Strip())) { - AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", digit->Detector(), - digit->Ring(), digit->Sector(), digit->Strip())); - continue; - } + if (!digit) continue; + ProcessDigit(digit); + } +} - // digit->Print(); - // Get eta and phi - Float_t eta, phi; - PhysicalCoordinates(digit, eta, phi); - - // Substract pedestal. - UShort_t counts = SubtractPedestal(digit); - if(counts == USHRT_MAX) continue; +//____________________________________________________________________ +void +AliFMDReconstructor::ProcessDigit(AliFMDDigit* digit) const +{ + // + // Process a single digit + // + // Parameters: + // digit Digiti to process + // + UShort_t det = digit->Detector(); + Char_t rng = digit->Ring(); + UShort_t sec = digit->Sector(); + UShort_t str = digit->Strip(); + Short_t adc = digit->Counts(); + // if (AliLog::GetDebugLevel("FMD","")>3) digit->Print(); + ProcessSignal(det, rng, sec, str, adc); +} + +//____________________________________________________________________ +void +AliFMDReconstructor::ProcessSignal(UShort_t det, + Char_t rng, + UShort_t sec, + UShort_t str, + Short_t adc) const +{ + // Process the signal from a single strip + // + // Parameters: + // det Detector ID + // rng Ring ID + // sec Sector ID + // rng Strip ID + // adc ADC counts + // + Int_t dbg = AliLog::GetDebugLevel("FMD",""); + Bool_t dhr = dbg > 3 && dbg < 10; + if (dhr) printf("FMD%d%c[%2d,%3d] adc=%4d ", det, rng, sec, str, adc); + + if (adc >= AliFMDRawReader::kBadSignal) { + AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is marked bad", det, rng, sec, str)); + if (dhr) Printf("bad"); + fBad(det,rng,sec,str) = true; + return; + } + + // Check that the strip is not marked as dead + AliFMDParameters* param = AliFMDParameters::Instance(); + if (param->IsDead(det, rng, sec, str)) { + AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); + if (dhr) Printf("dead"); + fBad(det,rng,sec,str) = true; + return; + } + + // digit->Print(); + // Get eta and phi + Float_t eta = fESDObj->Eta(det, rng, 0, str); + // Substract pedestal. + UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); + if(counts == USHRT_MAX) { + if (dhr) Printf("invalid"); + return; + } + if (dhr) printf("counts=%4d ", counts); + // Gain match digits. - Double_t edep = Adc2Energy(digit, eta, counts); - // Get rid of nonsense energy - if(edep < 0) continue; - - // Make rough multiplicity - Double_t mult = Energy2Multiplicity(digit, edep); - // Get rid of nonsense mult - if(mult < 0) continue; - AliFMDDebug(5, ("FMD%d%c[%2d,%3d]: " - "ADC: %d, Counts: %d, Energy: %f, Mult: %f", - digit->Detector(), digit->Ring(), digit->Sector(), - digit->Strip(), digit->Counts(), counts, edep, mult)); - - // Create a `RecPoint' on the output branch. - if (fMult) { - AliFMDRecPoint* m = - new ((*fMult)[fNMult]) AliFMDRecPoint(digit->Detector(), - digit->Ring(), - digit->Sector(), - digit->Strip(), - eta, phi, - edep, mult); - (void)m; // Suppress warnings about unused variables. - fNMult++; - } - - fESDObj->SetMultiplicity(digit->Detector(), digit->Ring(), - digit->Sector(), digit->Strip(), mult); - fESDObj->SetEta(digit->Detector(), digit->Ring(), - digit->Sector(), digit->Strip(), eta); + Double_t edep = Adc2Energy(det, rng, sec, str, eta, counts); + // Get rid of nonsense energy + if(edep < 0) { + if (dhr) Printf("zero"); + return; + } + if (dhr) printf("edep=%f ", edep); + + // Make rough multiplicity + Double_t mult = Energy2Multiplicity(det, rng, sec, str, edep); + // Get rid of nonsense mult + //if (mult > 20) { + // AliWarning(Form("The mutliplicity in FMD%d%c[%2d,%3d]=%f > 20 " + // "(ADC: %d, Energy: %f)", det, rng, sec, str, mult, + // counts, edep)); + // } + if (mult < 0) { + if (dhr) Printf("not hit"); + return; + } + + if (dhr) Printf("mult=%f ", mult); + AliFMDDebug(10, ("FMD%d%c[%2d,%3d]: " + "ADC: %d, Counts: %d, Energy: %f, Mult: %f", + det, rng, sec, str, adc, counts, edep, mult)); + + // Create a `RecPoint' on the output branch. + if (fMult) { + Float_t phi; + PhysicalCoordinates(det, rng, sec, str, eta, phi); - if (fDiagAll) fDiagAll->Fill(digit->Counts(), mult); + AliFMDRecPoint* m = + new ((*fMult)[fNMult]) AliFMDRecPoint(det, rng, sec, str, + eta, phi, edep, mult); + (void)m; // Suppress warnings about unused variables. + fNMult++; } + + fESDObj->SetMultiplicity(det, rng, sec, str, mult); + // fESDObj->SetEta(det, rng, sec, str, eta); + + if (fDiagAll) fDiagAll->Fill(adc, mult); + } //____________________________________________________________________ -UShort_t -AliFMDReconstructor::SubtractPedestal(AliFMDDigit* digit) const +void +AliFMDReconstructor::DigitizeSignal(TClonesArray* sdigits, + UShort_t det, + Char_t rng, + UShort_t sec, + UShort_t str, + UShort_t /* sam */, + Short_t adc) const { - // Member function to subtract the pedestal from a digit - // This implementation does nothing, but a derived class could over - // load this to subtract a pedestal that was given in a database or - // something like that. + // Process the signal from a single strip + // + // Parameters: + // det Detector ID + // rng Ring ID + // sec Sector ID + // rng Strip ID + // adc ADC counts + // + AliFMDParameters* param = AliFMDParameters::Instance(); + // Check that the strip is not marked as dead + if (param->IsDead(det, rng, sec, str)) { + AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); + return; + } + + // Substract pedestal. + UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); + if(counts == USHRT_MAX || counts == 0) return; + + // Gain match digits. + Double_t edep = Adc2Energy(det, rng, sec, str, counts); + // Get rid of nonsense energy + if(edep < 0) return; + + Int_t n = sdigits->GetEntriesFast(); + // AliFMDSDigit* sdigit = + new ((*sdigits)[n]) + AliFMDSDigit(det, rng, sec, str, edep, counts, counts, counts, counts); + // sdigit->SetCount(sam, counts); +} +//____________________________________________________________________ +UShort_t +AliFMDReconstructor::SubtractPedestal(UShort_t det, + Char_t rng, + UShort_t sec, + UShort_t str, + UShort_t adc, + Float_t noiseFactor, + Bool_t zsEnabled, + UShort_t zsNoiseFactor) const +{ + // + // Subtract the pedestal off the ADC counts. + // + // Parameters: + // det Detector number + // rng Ring identifier + // sec Sector number + // str Strip number + // adc ADC counts + // noiseFactor If pedestal substracted pedestal is less then + // this times the noise, then consider this to be 0. + // zsEnabled Whether zero-suppression is on. + // zsNoiseFactor Noise factor used in on-line pedestal + // subtraction. + // + // Return: + // The pedestal subtracted ADC counts (possibly 0), or @c + // USHRT_MAX in case of problems. + // AliFMDParameters* param = AliFMDParameters::Instance(); - Bool_t zs = fZS[digit->Detector()-1]; - UShort_t fac = fZSFactor[digit->Detector()-1]; - Float_t ped = (zs ? 0 : - param->GetPedestal(digit->Detector(), - digit->Ring(), - digit->Sector(), - digit->Strip())); - Float_t noise = param->GetPedestalWidth(digit->Detector(), - digit->Ring(), - digit->Sector(), - digit->Strip()); - if(ped < 0 || noise < 0) { - AliWarning(Form("Invalid pedestal (%f) or noise (%f) for %s", - ped, noise, digit->GetName())); + Float_t ped = (zsEnabled ? 0 : + param->GetPedestal(det, rng, sec, str)); + Float_t noise = param->GetPedestalWidth(det, rng, sec, str); + if (ped < 0 || noise < 0) { + AliWarningClass(Form("Invalid pedestal (%f) or noise (%f) " + "for FMD%d%c[%02d,%03d]", + ped, noise, det, rng, sec, str)); return USHRT_MAX; } + AliDebugClass(10, Form("Subtracting pedestal for FMD%d%c[%2d,%3d]=%4d " + "(%s w/factor %d, noise factor %f, " + "pedestal %8.2f+/-%8.2f)", + det, rng, sec, str, adc, + (zsEnabled ? "zs'ed" : "straight"), + zsNoiseFactor, noiseFactor, ped, noise)); + + Int_t counts = adc + Int_t(zsEnabled ? zsNoiseFactor * noise : - ped); + counts = TMath::Max(Int_t(counts), 0); + // Calculate the noise factor for suppressing remenants of the noise + // peak. If we have done on-line zero suppression, we only check + // for noise signals that are larger than the suppressed noise. If + // the noise factor used on line is larger than the factor used + // here, we do not do this check at all. + // + // For example: + // Online factor | Read factor | Result + // ---------------+--------------+------------------------------- + // 2 | 3 | Check if signal > 1 * noise + // 3 | 3 | Check if signal > 0 + // 3 | 2 | Check if signal > 0 + // + // In this way, we make sure that we do not suppress away too much + // data, and that the read-factor is the most stringent cut. + Float_t nf = zsNoiseFactor; // TMath::Max(0.F, noiseFactor - (zsEnabled ? zsNoiseFactor : 0)); + if (counts <= noise * nf) counts = 0; + if (counts > 0) AliDebugClass(15, "Got a hit strip"); + + UShort_t ret = counts < 0 ? 0 : counts; + return ret; +} - AliFMDDebug(5, ("Subtracting pedestal %f from signal %d", - ped, digit->Counts())); - // if (digit->Count3() > 0) adc = digit->Count3(); - // else if (digit->Count2() > 0) adc = digit->Count2(); - // else adc = digit->Count1(); - Int_t adc = digit->Counts(); - Int_t counts = adc + Int_t(zs ? fac * noise : - ped); - counts = TMath::Max(Int_t(counts), 0); - if (counts < noise * fNoiseFactor) counts = 0; - if (counts > 0) AliFMDDebug(15, ("Got a hit strip")); + +//____________________________________________________________________ +UShort_t +AliFMDReconstructor::SubtractPedestal(UShort_t det, + Char_t rng, + UShort_t sec, + UShort_t str, + Short_t adc) const +{ + // Member function to subtract the pedestal from a digit + // + // Parameters: + // det Detector ID + // rng Ring ID + // sec Sector ID + // rng Strip ID + // adc # of ADC counts + // Return: + // Pedestal subtracted signal or USHRT_MAX in case of problems + // + UShort_t counts = SubtractPedestal(det, rng, sec, str, adc, + fNoiseFactor, fZS[det-1], + fZSFactor[det-1]); if (fDiagStep1) fDiagStep1->Fill(adc, counts); - return UShort_t(counts); + return counts; } //____________________________________________________________________ Float_t -AliFMDReconstructor::Adc2Energy(AliFMDDigit* digit, - Float_t eta, - UShort_t count) const +AliFMDReconstructor::Adc2Energy(UShort_t det, + Char_t rng, + UShort_t sec, + UShort_t str, + UShort_t count) const { // Converts number of ADC counts to energy deposited. // Note, that this member function can be overloaded by derived @@ -426,32 +853,93 @@ AliFMDReconstructor::Adc2Energy(AliFMDDigit* digit, // // For the production we use the conversion measured in the NBI lab. // The total conversion is then: - // gain = ADC / DAC - // => energy = EdepMip*count / gain*DACPerADC - // + // + // gain = ADC / DAC + // + // EdepMip * count + // => energy = ---------------- + // gain * DACPerADC + // + // Parameters: + // det Detector ID + // rng Ring ID + // sec Sector ID + // rng Strip ID + // counts Number of ADC counts over pedestal + // Return + // The energy deposited in a single strip, or -1 in case of problems // if (count <= 0) return 0; AliFMDParameters* param = AliFMDParameters::Instance(); - Float_t gain = param->GetPulseGain(digit->Detector(), - digit->Ring(), - digit->Sector(), - digit->Strip()); + Float_t gain = param->GetPulseGain(det, rng, sec, str); // 'Tagging' bad gains as bad energy if (gain < 0) { - AliWarning(Form("Invalid gain (%f) for %s", gain, digit->GetName())); + AliDebugF(10, "Invalid gain (%f) for FMD%d%c[%02d,%03d]", + gain, det, rng, sec, str); return -1; } - AliFMDDebug(5, ("Converting counts %d to energy via factor %f and DAC2MIP %f", - count, gain,param->GetDACPerMIP())); + AliDebugF(10, "Converting counts %d to energy (factor=%f, DAC2MIP=%f)", + count, gain,param->GetDACPerMIP()); - Double_t edep = (count * param->GetEdepMip()) / (gain * param->GetDACPerMIP()); + Double_t edep = ((count * param->GetEdepMip()) + / (gain * param->GetDACPerMIP())); + return edep; +} + +//____________________________________________________________________ +Float_t +AliFMDReconstructor::Adc2Energy(UShort_t det, + Char_t rng, + UShort_t sec, + UShort_t str, + Float_t eta, + UShort_t count) const +{ + // Converts number of ADC counts to energy deposited. + // Note, that this member function can be overloaded by derived + // classes to do strip-specific look-ups in databases or the like, + // to find the proper gain for a strip. + // + // In the first simple version, we calculate the energy deposited as + // + // EnergyDeposited = cos(theta) * gain * count + // + // where + // + // Pre_amp_MIP_Range + // gain = ----------------- * Energy_deposited_per_MIP + // ADC_channel_size + // + // is constant and the same for all strips. + // + // For the production we use the conversion measured in the NBI lab. + // The total conversion is then: + // + // gain = ADC / DAC + // + // EdepMip * count + // => energy = ---------------- + // gain * DACPerADC + // + // Parameters: + // det Detector ID + // rng Ring ID + // sec Sector ID + // rng Strip ID + // eta Psuedo-rapidity + // counts Number of ADC counts over pedestal + // Return + // The energy deposited in a single strip, or -1 in case of problems + // + Double_t edep = Adc2Energy(det, rng, sec, str, count); + if (fDiagStep2) fDiagStep2->Fill(count, edep); if (fAngleCorrect) { Double_t theta = 2 * TMath::ATan(TMath::Exp(-eta)); Double_t corr = TMath::Abs(TMath::Cos(theta)); Double_t cedep = corr * edep; - AliFMDDebug(10, ("correcting for path %f * %f = %f (eta=%f, theta=%f)", - edep, corr, cedep, eta, theta)); + AliDebugF(10, "correcting for path %f * %f = %f (eta=%f, theta=%f)", + edep, corr, cedep, eta, theta); if (fDiagStep3) fDiagStep3->Fill(edep, cedep); edep = cedep; } @@ -460,8 +948,11 @@ AliFMDReconstructor::Adc2Energy(AliFMDDigit* digit, //____________________________________________________________________ Float_t -AliFMDReconstructor::Energy2Multiplicity(AliFMDDigit* /* digit */, - Float_t edep) const +AliFMDReconstructor::Energy2Multiplicity(UShort_t /*det*/, + Char_t /*rng*/, + UShort_t /*sec*/, + UShort_t /*str*/, + Float_t edep) const { // Converts an energy signal to number of particles. // Note, that this member function can be overloaded by derived @@ -477,6 +968,15 @@ AliFMDReconstructor::Energy2Multiplicity(AliFMDDigit* /* digit */, // Energy_deposited_per_MIP = 1.664 * SI_density * SI_thickness // // is constant and the same for all strips + // + // Parameters: + // det Detector ID + // rng Ring ID + // sec Sector ID + // rng Strip ID + // edep Energy deposited in a single strip + // Return + // The "bare" multiplicity corresponding to the energy deposited AliFMDParameters* param = AliFMDParameters::Instance(); Double_t edepMIP = param->GetEdepMip(); Float_t mult = edep / edepMIP; @@ -491,26 +991,49 @@ AliFMDReconstructor::Energy2Multiplicity(AliFMDDigit* /* digit */, //____________________________________________________________________ void -AliFMDReconstructor::PhysicalCoordinates(AliFMDDigit* digit, +AliFMDReconstructor::PhysicalCoordinates(UShort_t det, + Char_t rng, + UShort_t sec, + UShort_t str, Float_t& eta, Float_t& phi) const { // Get the eta and phi of a digit // - // Get geometry. + // Parameters: + // det Detector ID + // rng Ring ID + // sec Sector ID + // rng Strip ID + // eta On return, contains the psuedo-rapidity of the strip + // phi On return, contains the azimuthal angle of the strip + // AliFMDGeometry* geom = AliFMDGeometry::Instance(); - Double_t x, y, z, r, theta; - geom->Detector2XYZ(digit->Detector(), digit->Ring(), digit->Sector(), - digit->Strip(), x, y, z); + Double_t x, y, z, r, theta, deta, dphi; + geom->Detector2XYZ(det, rng, sec, str, x, y, z); + // Correct for vertex offset. - z += fCurrentVertex; - phi = TMath::ATan2(y, x); - r = TMath::Sqrt(y * y + x * x); - theta = TMath::ATan2(r, z); - eta = -TMath::Log(TMath::Tan(theta / 2)); + z -= fCurrentVertex; + AliFMDGeometry::XYZ2REtaPhiTheta(x, y, z, r, deta, dphi, theta); + eta = deta; + phi = dphi; +} + +namespace { + class ESDPrinter : public AliESDFMD::ForOne + { + public: + ESDPrinter() {} + Bool_t operator()(UShort_t d, Char_t r, UShort_t s, UShort_t t, + Float_t m, Float_t e) + { + if (m > 0 && m != AliESDFMD::kInvalidMult) + printf(" FMD%d%c[%2d,%3d] = %6.3f / %6.3f\n", d, r, s, t, m, e); + return kTRUE; + } + }; } - //____________________________________________________________________ void @@ -522,8 +1045,29 @@ AliFMDReconstructor::FillESD(TTree* /* digitsTree */, // FIXME: The vertex may not be known when Reconstruct is executed, // so we may have to move some of that member function here. AliFMDDebug(2, ("Calling FillESD with two trees and one ESD")); + if (fZombie) { + AliWarning("I'm a zombie - cannot do anything"); + return; + } // fESDObj->Print(); + // Fix up ESD so that only truely dead channels get the kInvalidMult flag. + MarkDeadChannels(fESDObj); + + Double_t oldVz = fCurrentVertex; + GetVertex(esd); + if (fVertexType != kNoVertex) { + AliFMDDebug(2, ("Revertexing the ESD data to vz=%f (was %f)", + fCurrentVertex, oldVz)); + AliFMDESDRevertexer revertexer; + revertexer.Revertex(fESDObj, fCurrentVertex); + } + + if (AliDebugLevel() > 10) { + ESDPrinter p; + fESDObj->ForEach(p); + } + if (esd) { AliFMDDebug(2, ("Writing FMD data to ESD tree")); esd->SetFMDData(fESDObj); @@ -536,7 +1080,7 @@ AliFMDReconstructor::FillESD(TTree* /* digitsTree */, // - That's OK. We just use it for the name of the directory - // nothing else. Christian Int_t evno = esd->GetEventNumberInFile(); - AliFMDDebug(1, ("Writing diagnostics histograms to FMD.Diag.root/%03d",evno)); + AliFMDDebug(3, ("Writing diagnostics histograms to FMD.Diag.root/%03d",evno)); TFile f("FMD.Diag.root", (first ? "RECREATE" : "UPDATE")); first = false; f.cd(); @@ -564,10 +1108,16 @@ void AliFMDReconstructor::FillESD(AliRawReader*, TTree* clusterTree, AliESDEvent* esd) const { + // + // Forwards to above member function + // + if (fZombie) { + AliWarning("I'm a zombie - cannot do anything"); + return; + } TTree* dummy = 0; FillESD(dummy, clusterTree, esd); } - //____________________________________________________________________ // // EOF