X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=FMD%2FAliFMDReconstructor.cxx;h=f6493fdab3348c339d5b981b9b43418f6a185d4c;hb=7f32679b34346873e3731485012472e7643b1278;hp=935a2f4b40f8ab41bf7d662dc0f0fbc1493915de;hpb=8f6ee336348f5b68c1bf9a963b997be2108f81f9;p=u%2Fmrichter%2FAliRoot.git diff --git a/FMD/AliFMDReconstructor.cxx b/FMD/AliFMDReconstructor.cxx index 935a2f4b40f..f6493fdab33 100644 --- a/FMD/AliFMDReconstructor.cxx +++ b/FMD/AliFMDReconstructor.cxx @@ -12,101 +12,54 @@ * about the suitability of this software for any purpose. It is * * 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 +*/ //____________________________________________________________________ // -// This is a class that constructs AliFMDMult (reconstructed -// multiplicity) from of Digits -// -// This class reads either digits from a TClonesArray or raw data from +// 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). -// -// From the cached values it then calculates the number of particles -// that hit a region of the FMDs, as specified by the user. -// -// The reconstruction can be done in two ways: Either via counting the -// number of empty strips (Poisson method), or by converting the ADC -// signal to an energy deposition, and then dividing by the typical -// energy loss of a particle. -// -// +---------------------+ +---------------------+ -// | AliFMDReconstructor |<>-----| AliFMDMultAlgorithm | -// +---------------------+ +---------------------+ -// ^ -// | -// +-----------+---------+ -// | | -// +-------------------+ +------------------+ -// | AliFMDMultPoisson | | AliFMDMultNaiive | -// +-------------------+ +------------------+ -// -// AliFMDReconstructor acts as a manager class. It contains a list of -// AliFMDMultAlgorithm objects. The call graph looks something like -// -// -// +----------------------+ +----------------------+ -// | :AliFMDReconstructor | | :AliFMDMultAlgorithm | -// +----------------------+ +----------------------+ -// | | -// Reconstruct +-+ | -// ------------>| | PreRun +-+ -// | |------------------------------->| | -// | | +-+ -// | |-----+ (for each event) | -// | | | *ProcessEvent | -// |+-+ | | -// || |<---+ PreEvent +-+ -// || |------------------------------>| | -// || | +-+ -// || |-----+ | -// || | | ProcessDigits | -// ||+-+ | | -// ||| |<---+ | -// ||| | *ProcessDigit(digit) +-+ -// ||| |----------------------------->| | -// ||| | +-+ -// ||+-+ | -// || | PostEvent +-+ -// || |------------------------------>| | -// || | +-+ -// |+-+ | -// | | PostRun +-+ -// | |------------------------------->| | -// | | +-+ -// +-+ | -// | | +// 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 -#include // ALIRUNLOADER_H -#include // ALILOADER_H -#include // ALIHEADER_H -#include // ALIRAWREADER_H -#include // ALIGENEVENTHEADER_H -#include "AliFMD.h" // ALIFMD_H +// #include // ALILOG_H +// #include // ALIRUN_H +#include "AliFMDDebug.h" #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H #include "AliFMDParameters.h" // ALIFMDPARAMETERS_H -#include "AliFMDDetector.h" // ALIFMDDETECTOR_H -#include "AliFMDRing.h" // ALIFMDRING_H +#include "AliFMDAltroMapping.h" // ALIFMDALTROMAPPING_H #include "AliFMDDigit.h" // ALIFMDDIGIT_H +#include "AliFMDSDigit.h" // ALIFMDDIGIT_H #include "AliFMDReconstructor.h" // ALIFMDRECONSTRUCTOR_H -#include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H +#include "AliFMDRecoParam.h" // ALIFMDRECOPARAM_H #include "AliFMDRawReader.h" // ALIFMDRAWREADER_H -#include "AliFMDMultStrip.h" // ALIFMDMULTNAIIVE_H -#include "AliESD.h" // ALIESD_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 +// Import revertexer into a private namespace (to prevent conflicts) +namespace { +# include "AliFMDESDRevertexer.h" +} + + +class AliRawReader; //____________________________________________________________________ ClassImp(AliFMDReconstructor) @@ -117,31 +70,30 @@ ClassImp(AliFMDReconstructor) //____________________________________________________________________ AliFMDReconstructor::AliFMDReconstructor() : AliReconstructor(), - fMult(0), - fESDObj(0) + fMult(0x0), + fNMult(0), + fTreeR(0x0), + fCurrentVertex(0), + fESDObj(0x0), + fNoiseFactor(0), + fAngleCorrect(kTRUE), + fVertexType(kNoVertex), + fESD(0x0), + fDiagnostics(kTRUE), + fDiagStep1(0), + fDiagStep2(0), + fDiagStep3(0), + fDiagStep4(0), + fDiagAll(0) { // Make a new FMD reconstructor object - default CTOR. -} - - -//____________________________________________________________________ -AliFMDReconstructor::AliFMDReconstructor(const AliFMDReconstructor& other) - : AliReconstructor(), - fMult(other.fMult), - fESDObj(other.fESDObj) -{ - // Copy constructor -} - - -//____________________________________________________________________ -AliFMDReconstructor& -AliFMDReconstructor::operator=(const AliFMDReconstructor& other) -{ - // Assignment operator - fMult = other.fMult; - fESDObj = other.fESDObj; - return *this; + SetNoiseFactor(); + SetAngleCorrect(); + if (AliDebugLevel() > 0) fDiagnostics = kTRUE; + for(Int_t det = 1; det<=3; det++) { + fZS[det-1] = kFALSE; + fZSFactor[det-1] = 0; + } } //____________________________________________________________________ @@ -155,58 +107,202 @@ AliFMDReconstructor::~AliFMDReconstructor() //____________________________________________________________________ void -AliFMDReconstructor::Init(AliRunLoader* runLoader) +AliFMDReconstructor::Init() { // Initialize the reconstructor - AliDebug(1, Form("Init called with runloader 0x%x", runLoader)); + + // Initialize the geometry + AliFMDGeometry* geom = AliFMDGeometry::Instance(); + geom->Init(); + geom->InitTransformations(); + + // Initialize the parameters + AliFMDParameters* param = AliFMDParameters::Instance(); + param->Init(); + // Current vertex position fCurrentVertex = 0; // Create array of reconstructed strip multiplicities - fMult = new TClonesArray("AliFMDMultStrip", 51200); + fMult = new TClonesArray("AliFMDRecPoint", 51200); // Create ESD output object fESDObj = new AliESDFMD; - // Check that we have a run loader - if (!runLoader) { - Warning("Init", "No run loader"); - return; + // 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"); +} + +//____________________________________________________________________ +void +AliFMDReconstructor::ConvertDigits(AliRawReader* reader, + TTree* digitsTree) const +{ + // Convert Raw digits to AliFMDDigit's in a tree + AliFMDDebug(1, ("Reading raw data into digits tree")); + AliFMDRawReader rawRead(reader, digitsTree); + // rawRead.SetSampleRate(fFMD->GetSampleRate()); + rawRead.Exec(); + 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)); } +} + +//____________________________________________________________________ +void +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 (!esd) return; + + const AliESDVertex* vertex = esd->GetPrimaryVertex(); + if (!vertex) vertex = esd->GetPrimaryVertexSPD(); + if (!vertex) vertex = esd->GetPrimaryVertexTPC(); + if (!vertex) vertex = esd->GetVertex(); - // Check if we can get the header tree - AliHeader* header = runLoader->GetHeader(); - if (!header) { - Warning("Init", "No header"); + 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 +{ + return AliReconstruction::GetDetIndex(GetDetectorName()); +} - // Check if we can get a simulation header - AliGenEventHeader* eventHeader = header->GenEventHeader(); - if (eventHeader) { - TArrayF vtx; - eventHeader->PrimaryVertex(vtx); - fCurrentVertex = vtx[2]; - AliDebug(1, Form("Primary vertex Z coordinate for event # %d/%d is %f", - header->GetRun(), header->GetEvent(), fCurrentVertex)); - Warning("Init", "no generator event header"); +//____________________________________________________________________ +const AliFMDRecoParam* +AliFMDReconstructor::GetParameters() const +{ + Int_t iDet = 12; // GetIdentifier(); + 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 +{ + 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; } - else { - Warning("Init", "No generator event header - " - "perhaps we get the vertex from ESD?"); + fNoiseFactor = savedNoiseFactor; + fAngleCorrect = savedAngleCorrect; +} + + + +//____________________________________________________________________ +void +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. + AliFMDDebug(1, ("Reconstructing from raw reader")); + AliFMDRawReader rawReader(reader, 0); + + 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); } - // Get the ESD tree - SetESD(new AliESD); + UseRecoParam(kFALSE); + } //____________________________________________________________________ void -AliFMDReconstructor::ConvertDigits(AliRawReader* reader, - TTree* digitsTree) const +AliFMDReconstructor::Digitize(AliRawReader* reader, TClonesArray* sdigits) const { - // Convert Raw digits to AliFMDDigit's in a tree - AliDebug(1, "Reading raw data into digits tree"); - AliFMDRawReader rawRead(reader, digitsTree); - // rawRead.SetSampleRate(fFMD->GetSampleRate()); - rawRead.Exec(); + // Reconstruct directly from raw data (no intermediate output on + // digit tree or rec point tree). + // + // Parameters: + // reader Raw event reader + // ctree Not used. + 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); } //____________________________________________________________________ @@ -218,16 +314,14 @@ 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. - AliDebug(1, "Reconstructing from digits in a tree"); -#if 0 - if (fESD) { - const AliESDVertex* vertex = fESD->GetVertex(); - if (vertex) { - AliDebug(1, Form("Got vertex from ESD: %f", vertex->GetZv())); - fCurrentVertex = vertex->GetZv(); - } - } -#endif + // + // Parameters: + // digitsTree Pointer to a tree containing digits + // clusterTree Pointer to output tree + // + AliFMDDebug(1, ("Reconstructing from digits in a tree")); + GetVertex(fESD); + TBranch *digitBranch = digitsTree->GetBranch("FMD"); if (!digitBranch) { Error("Exec", "No digit branch for the FMD found"); @@ -236,13 +330,6 @@ AliFMDReconstructor::Reconstruct(TTree* digitsTree, TClonesArray* digits = new TClonesArray("AliFMDDigit"); digitBranch->SetAddress(&digits); - // TIter next(&fAlgorithms); - // AliFMDMultAlgorithm* algorithm = 0; - // while ((algorithm = static_cast(next()))) { - // AliDebug(10, Form("PreEvent called for algorithm %s", - // algorithm->GetName())); - // algorithm->PreEvent(clusterTree, fCurrentVertex); - // } if (fMult) fMult->Clear(); if (fESDObj) fESDObj->Clear(); @@ -250,21 +337,16 @@ AliFMDReconstructor::Reconstruct(TTree* digitsTree, fTreeR = clusterTree; fTreeR->Branch("FMD", &fMult); - AliDebug(5, "Getting entry 0 from digit branch"); + AliFMDDebug(5, ("Getting entry 0 from digit branch")); digitBranch->GetEntry(0); - AliDebug(5, "Processing digits"); + AliFMDDebug(5, ("Processing digits")); + UseRecoParam(kTRUE); ProcessDigits(digits); + UseRecoParam(kFALSE); - // next.Reset(); - // algorithm = 0; - // while ((algorithm = static_cast(next()))) { - // AliDebug(10, Form("PostEvent called for algorithm %s", - // algorithm->GetName())); - // algorithm->PostEvent(); - // } Int_t written = clusterTree->Fill(); - AliDebug(10, Form("Filled %d bytes into cluster tree", written)); + AliFMDDebug(10, ("Filled %d bytes into cluster tree", written)); digits->Delete(); delete digits; } @@ -277,91 +359,232 @@ 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(); - AliDebug(1, Form("Got %d digits", nDigits)); + AliFMDDebug(2, ("Got %d digits", nDigits)); + fESDObj->SetNoiseFactor(fNoiseFactor); + fESDObj->SetAngleCorrected(fAngleCorrect); 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())) continue; - - // digit->Print(); - // Get eta and phi - Float_t eta, phi; - PhysicalCoordinates(digit, eta, phi); - - // Substract pedestal. - UShort_t counts = SubtractPedestal(digit); + if (!digit) continue; + ProcessDigit(digit); + } +} + +//____________________________________________________________________ +void +AliFMDReconstructor::ProcessDigit(AliFMDDigit* digit) const +{ + 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(); + + 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 + // + AliFMDParameters* param = AliFMDParameters::Instance(); + // Check that the strip is not marked as dead + if (param->IsDead(det, rng, sec, str)) { + AliFMDDebug(3, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str)); + return; + } + + // digit->Print(); + // Get eta and phi + Float_t eta, phi; + PhysicalCoordinates(det, rng, sec, str, eta, phi); + // Substract pedestal. + UShort_t counts = SubtractPedestal(det, rng, sec, str, adc); + if(counts == USHRT_MAX) return; + // Gain match digits. - Double_t edep = Adc2Energy(digit, eta, counts); - - // Make rough multiplicity - Double_t mult = Energy2Multiplicity(digit, edep); - - AliDebug(10, Form("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. - AliFMDMultStrip* m = - new ((*fMult)[fNMult]) AliFMDMultStrip(digit->Detector(), - digit->Ring(), - digit->Sector(), - digit->Strip(), - eta, phi, - edep, mult, - AliFMDMult::kNaiive); + Double_t edep = Adc2Energy(det, rng, sec, str, eta, counts); + // Get rid of nonsense energy + if(edep < 0) return; + + // Make rough multiplicity + Double_t mult = Energy2Multiplicity(det, rng, sec, str, edep); + // Get rid of nonsense mult + if (mult < 0) return; + 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) { + 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); + +} + +//____________________________________________________________________ +void +AliFMDReconstructor::DigitizeSignal(TClonesArray* sdigits, + UShort_t det, + Char_t rng, + UShort_t sec, + UShort_t str, + UShort_t /* sam */, + 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 + // + 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); +} - fESDObj->SetMultiplicity(digit->Detector(), digit->Ring(), - digit->Sector(), digit->Strip(), mult); - fESDObj->SetEta(digit->Detector(), digit->Ring(), - digit->Sector(), digit->Strip(), eta); +//____________________________________________________________________ +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 +{ + AliFMDParameters* param = AliFMDParameters::Instance(); + 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(15, 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 = TMath::Max(0.F, noiseFactor - (zsEnabled ? zsNoiseFactor : 0)); + if (counts < noise * nf) counts = 0; + if (counts > 0) AliDebugClass(15, "Got a hit strip"); + + return counts; } + //____________________________________________________________________ UShort_t -AliFMDReconstructor::SubtractPedestal(AliFMDDigit* digit) const +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 - // 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. - - Int_t counts = 0; - AliFMDParameters* param = AliFMDParameters::Instance(); - Float_t pedM = param->GetPedestal(digit->Detector(), - digit->Ring(), - digit->Sector(), - digit->Strip()); - AliDebug(10, Form("Subtracting pedestal %f from signal %d", - pedM, digit->Counts())); - if (digit->Count3() > 0) counts = digit->Count3(); - else if (digit->Count2() > 0) counts = digit->Count2(); - else counts = digit->Count1(); - counts = TMath::Max(Int_t(counts - pedM), 0); - if (counts > 0) AliDebug(10, "Got a hit strip"); + // + // 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 // classes to do strip-specific look-ups in databases or the like, // to find the proper gain for a strip. // - // In this simple version, we calculate the energy deposited as + // In the first simple version, we calculate the energy deposited as // // EnergyDeposited = cos(theta) * gain * count // @@ -372,24 +595,109 @@ AliFMDReconstructor::Adc2Energy(AliFMDDigit* digit, // ADC_channel_size // // is constant and the same for all strips. - - // Double_t theta = 2 * TMath::ATan(TMath::Exp(-eta)); - // Double_t edep = TMath::Abs(TMath::Cos(theta)) * fGain * count; + // + // 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 + // 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()); - Double_t edep = count * gain; - AliDebug(10, Form("Converting counts %d to energy via factor %f", - count, gain)); + Float_t gain = param->GetPulseGain(det, rng, sec, str); + // 'Tagging' bad gains as bad energy + if (gain < 0) { + AliWarning(Form("Invalid gain (%f) for FMD%d%c[%02d,%03d]", + gain, det, rng, sec, str)); + return -1; + } + AliFMDDebug(5, ("Converting counts %d to energy (factor=%f, DAC2MIP=%f)", + count, 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)); + if (fDiagStep3) fDiagStep3->Fill(edep, cedep); + edep = cedep; + } return edep; } //____________________________________________________________________ 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 @@ -405,50 +713,55 @@ 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; +#if 0 if (edep > 0) - AliDebug(10, Form("Translating energy %f to multiplicity via " + AliFMDDebug(15, ("Translating energy %f to multiplicity via " "divider %f->%f", edep, edepMIP, mult)); +#endif + if (fDiagStep4) fDiagStep4->Fill(edep, mult); return mult; } //____________________________________________________________________ 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. - AliFMDGeometry* fmd = AliFMDGeometry::Instance(); - AliFMDDetector* subDetector = fmd->GetDetector(digit->Detector()); - if (!subDetector) { - Warning("ProcessDigits", "Unknown detector: FMD%d" , digit->Detector()); - return; - } - - // Get the ring - we should really use geometry->Detector2XYZ(...) - // here. - AliFMDRing* ring = subDetector->GetRing(digit->Ring()); - Float_t ringZ = subDetector->GetRingZ(digit->Ring()); - if (!ring) { - Warning("ProcessDigits", "Unknown ring: FMD%d%c", digit->Detector(), - digit->Ring()); - return; - } - + // 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(det, rng, sec, str, x, y, z); // Correct for vertex offset. - Float_t realZ = fCurrentVertex + ringZ; - Float_t stripR = ((ring->GetHighR() - ring->GetLowR()) - / ring->GetNStrips() * (digit->Strip() + .5) - + ring->GetLowR()); - Float_t theta = TMath::ATan2(stripR, realZ); - phi = (2 * TMath::Pi() / ring->GetNSectors() - * (digit->Sector() + .5)); - eta = -TMath::Log(TMath::Tan(theta / 2)); + 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)); } @@ -457,148 +770,66 @@ AliFMDReconstructor::PhysicalCoordinates(AliFMDDigit* digit, void AliFMDReconstructor::FillESD(TTree* /* digitsTree */, TTree* /* clusterTree */, - AliESD* esd) const + AliESDEvent* esd) const { // nothing to be done // FIXME: The vertex may not be known when Reconstruct is executed, // so we may have to move some of that member function here. - AliDebug(1, Form("Calling FillESD with two trees and one ESD")); + AliFMDDebug(2, ("Calling FillESD with two trees and one ESD")); // fESDObj->Print(); - if (esd) { - AliDebug(1, Form("Writing FMD data to ESD tree")); - esd->SetFMDData(fESDObj); - // Let's check the data in the ESD -#if 0 - AliESDFMD* fromEsd = esd->GetFMDData(); - if (!fromEsd) { - AliWarning("No FMD object in ESD!"); - return; - } - for (UShort_t det = 1; det <= fESDObj->MaxDetectors(); det++) { - for (UShort_t ir = 0; ir < fESDObj->MaxRings(); ir++) { - Char_t ring = (ir == 0 ? 'I' : 'O'); - for (UShort_t sec = 0; sec < fESDObj->MaxSectors(); sec++) { - for (UShort_t str = 0; str < fESDObj->MaxStrips(); str++) { - if (fESDObj->Multiplicity(det, ring, sec, str) != - fromEsd->Multiplicity(det, ring, sec, str)) - AliWarning(Form("Mult for FMD%d%c[%2d,%3d]",det,ring,sec,str)); - if (fESDObj->Eta(det, ring, sec, str) != - fromEsd->Eta(det, ring, sec, str)) - AliWarning(Form("Eta for FMD%d%c[%2d,%3d]", det,ring,sec,str)); - if (fESDObj->Multiplicity(det, ring, sec, str) > 0 && - fESDObj->Multiplicity(det, ring, sec, str) - != AliESDFMD::kInvalidMult) - AliInfo(Form("Mult in FMD%d%c[%2d,%3d] is %f", det,ring,sec,str, - fESDObj->Multiplicity(det, ring, sec, str))); - } - } - } - } -#endif + 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 0 - static Int_t evNo = -1; - evNo++; - if (esd) evNo = esd->GetEventNumber(); - TString fname(Form("FMD.ESD.%03d.root", evNo)); - TFile* file = TFile::Open(fname.Data(), "RECREATE"); - if (!file) { - AliError(Form("Failed to open file %s", fname.Data())); - return; - } - fESDObj->Write(); - file->Close(); -#endif - -#if 0 - TClonesArray* multStrips = 0; - TClonesArray* multRegions = 0; - TTree* treeR = fmdLoader->TreeR(); - TBranch* branchRegions = treeR->GetBranch("FMDPoisson"); - TBranch* branchStrips = treeR->GetBranch("FMDNaiive"); - branchRegions->SetAddress(&multRegions); - branchStrips->SetAddress(&multStrips); - - Int_t total = 0; - Int_t nEntries = clusterTree->GetEntries(); - for (Int_t entry = 0; entry < nEntries; entry++) { - AliDebug(5, Form("Entry # %d in cluster tree", entry)); - treeR->GetEntry(entry); - - - Int_t nMults = multRegions->GetLast(); - for (Int_t i = 0; i <= nMults; i++) { - AliFMDMultRegion* multR = - static_cast(multRegions->UncheckedAt(i)); - Int_t nParticles=multR->Particles(); - if (i>=0 && i<=13) hEtaPoissonI1->AddBinContent(i+1,nParticles); - if (i>=14 && i<=27 ) hEtaPoissonI2->AddBinContent(i-13,nParticles); - if (i>=28 && i<=33 ); - if (i>=34 && i<=47 ) hEtaPoissonI3->AddBinContent(48-i,nParticles); - if (i>=48 && i<=53) hEtaPoissonO3->AddBinContent(54-i,nParticles); - } + if (esd) { + AliFMDDebug(2, ("Writing FMD data to ESD tree")); + esd->SetFMDData(fESDObj); } -#endif -} + if (!fDiagnostics || !esd) return; + static bool first = true; + // This is most likely NOT the event number you'd like to use. It + // has nothing to do with the 'real' event number. + // - That's OK. We just use it for the name of the directory - + // nothing else. Christian + Int_t evno = esd->GetEventNumberInFile(); + AliFMDDebug(3, ("Writing diagnostics histograms to FMD.Diag.root/%03d",evno)); + TFile f("FMD.Diag.root", (first ? "RECREATE" : "UPDATE")); + first = false; + f.cd(); + TDirectory* d = f.mkdir(Form("%03d", evno), + Form("Diagnostics histograms for event # %d", evno)); + d->cd(); + if (fDiagStep1) fDiagStep1->Write(); + if (fDiagStep2) fDiagStep2->Write(); + if (fDiagStep3) fDiagStep3->Write(); + if (fDiagStep4) fDiagStep4->Write(); + if (fDiagAll) fDiagAll->Write(); + d->Write(); + f.Write(); + f.Close(); -//____________________________________________________________________ -void -AliFMDReconstructor::Reconstruct(AliRawReader*,TTree*) const -{ - // Cannot be used. See member function with same name but with 2 - // TTree arguments. Make sure you do local reconstrucion - AliDebug(1, Form("Calling FillESD with loader and tree")); - AliError("MayNotUse"); -} -//____________________________________________________________________ -void -AliFMDReconstructor::Reconstruct(AliRunLoader*) const -{ - // Cannot be used. See member function with same name but with 2 - // TTree arguments. Make sure you do local reconstrucion - AliDebug(1, Form("Calling FillESD with loader")); - AliError("MayNotUse"); -} -//____________________________________________________________________ -void -AliFMDReconstructor::Reconstruct(AliRunLoader*, AliRawReader*) const -{ - // Cannot be used. See member function with same name but with 2 - // TTree arguments. Make sure you do local reconstrucion - AliDebug(1, Form("Calling FillESD with loader and raw reader")); - AliError("MayNotUse"); -} -//____________________________________________________________________ -void -AliFMDReconstructor::FillESD(AliRawReader*,TTree*,AliESD*) const -{ - // Cannot be used. See member function with same name but with 2 - // TTree arguments. Make sure you do local reconstrucion - AliDebug(1, Form("Calling FillESD with raw reader, tree, and ESD")); - AliError("MayNotUse"); -} -//____________________________________________________________________ -void -AliFMDReconstructor::FillESD(AliRunLoader*,AliESD*) const -{ - // Cannot be used. See member function with same name but with 2 - // TTree arguments. Make sure you do local reconstrucion - AliDebug(1, Form("Calling FillESD with loader and ESD")); - AliError("MayNotUse"); + if (fDiagStep1) fDiagStep1->Reset(); + if (fDiagStep2) fDiagStep2->Reset(); + if (fDiagStep3) fDiagStep3->Reset(); + if (fDiagStep4) fDiagStep4->Reset(); + if (fDiagAll) fDiagAll->Reset(); } + //____________________________________________________________________ -void -AliFMDReconstructor::FillESD(AliRunLoader*,AliRawReader*,AliESD*) const +void +AliFMDReconstructor::FillESD(AliRawReader*, TTree* clusterTree, + AliESDEvent* esd) const { - // Cannot be used. See member function with same name but with 2 - // TTree arguments. Make sure you do local reconstrucion - AliDebug(1, Form("Calling FillESD with loader, raw reader, and ESD")); - AliError("MayNotUse"); + TTree* dummy = 0; + FillESD(dummy, clusterTree, esd); } - //____________________________________________________________________ // // EOF