+//____________________________________________________________________
+//
+// 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 <cholm@nbi.dk>
+//
+//
+//____________________________________________________________________
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
* provided "as is" without express or implied warranty. *
**************************************************************************/
/* $Id$ */
-/** @file AliFMDReconstructor.cxx
- @author Christian Holm Christensen <cholm@nbi.dk>
- @date Mon Mar 27 12:47:09 2006
- @brief FMD reconstruction
+/**
+ * @file AliFMDReconstructor.cxx
+ * @author Christian Holm Christensen <cholm@nbi.dk>
+ * @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 <cholm@nbi.dk>
-//
-//
-//____________________________________________________________________
// #include <AliLog.h> // ALILOG_H
// #include <AliRun.h> // ALIRUN_H
fAngleCorrect(kTRUE),
fVertexType(kNoVertex),
fESD(0x0),
- fDiagnostics(kTRUE),
+ fDiagnostics(kFALSE),
fDiagStep1(0),
fDiagStep2(0),
fDiagStep3(0),
fDiagStep4(0),
- fDiagAll(0)
+ fDiagAll(0),
+ fBad(0)
{
// Make a new FMD reconstructor object - default CTOR.
SetNoiseFactor();
// 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;
{
// Convert Raw digits to AliFMDDigit's in a tree
AliFMDDebug(1, ("Reading raw data into digits tree"));
+ if (!digitsTree) {
+ AliError("No digits tree passed");
+ return;
+ }
+ static TClonesArray* 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();
+ AliFMDDebug(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));
+ fZS[i-1] = rawRead.IsZeroSuppressed(map->Detector2DDL(i));
+ fZSFactor[i-1] = rawRead.NoiseFactor(map->Detector2DDL(i));
}
}
Int_t
AliFMDReconstructor::GetIdentifier() const
{
- return AliReconstruction::GetDetIndex(GetDetectorName());
+ // 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
{
- Int_t iDet = 12; // GetIdentifier();
+ // 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<const AliFMDRecoParam*>(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) {
}
-
//____________________________________________________________________
void
-AliFMDReconstructor::Reconstruct(AliRawReader* reader, TTree*) const
+AliFMDReconstructor::MarkDeadChannels(AliESDFMD* esd) 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);
+ // 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++) {
+ if (fBad(d, r, s, t)) {
+ AliDebug(5, Form("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)) {
+ AliDebug(5, Form("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) {
+ AliDebug(10, Form("Setting null signal in FMD%d%c[%2d,%3d]",
+ d, r, s, t));
+ esd->SetMultiplicity(d, r, s, t, 0);
+ }
+ }
+ }
+ }
+ }
+}
+
+//____________________________________________________________________
+void
+AliFMDReconstructor::Reconstruct(AliFMDRawReader& rawReader) const
+{
+ AliFMDDebug(1, ("Reconstructing from FMD raw reader"));
+ fBad.Reset(false);
UShort_t det, sec, str, fac;
Short_t adc, oldDet = -1;
Bool_t zs;
ProcessSignal(det, rng, sec, str, adc);
}
UseRecoParam(kFALSE);
-
+
+}
+
+//____________________________________________________________________
+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 - 'cluster tree' to store rec-points in.
+ AliFMDDebug(1, ("Reconstructing from raw reader"));
+ AliFMDRawReader rawReader(reader, 0);
+ Reconstruct(rawReader);
}
//____________________________________________________________________
// digitsTree Pointer to a tree containing digits
// clusterTree Pointer to output tree
//
+ if (!fMult) fMult = new TClonesArray("AliFMDRecPoint");
+
AliFMDDebug(1, ("Reconstructing from digits in a tree"));
GetVertex(fESD);
+
+
static TClonesArray* digits = new TClonesArray("AliFMDDigit");
- TBranch *digitBranch = digitsTree->GetBranch("FMD");
+ 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();
Int_t written = clusterTree->Fill();
AliFMDDebug(10, ("Filled %d bytes into cluster tree", written));
- digits->Delete();
+ // 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
+ //
+ 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
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<AliFMDDigit*>(digits->At(i));
if (!digit) 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();
// rng Strip ID
// adc ADC counts
//
- AliFMDParameters* param = AliFMDParameters::Instance();
+ if (adc >= AliFMDRawReader::kBadSignal) {
+ AliFMDDebug(1, ("FMD%d%c[%2d,%3d] is marked bad", det, rng, sec, str));
+ 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(1, ("FMD%d%c[%2d,%3d] is dead", det, rng, sec, str));
+ fBad(det,rng,sec,str) = true;
return;
}
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();
Float_t ped = (zsEnabled ? 0 :
param->GetPedestal(det, rng, sec, str));
// phi On return, contains the azimuthal angle of the strip
//
AliFMDGeometry* geom = AliFMDGeometry::Instance();
- Double_t x, y, z, r, theta;
+ 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));
+ 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
AliFMDDebug(2, ("Calling FillESD with two trees and one ESD"));
// 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) {
AliFMDESDRevertexer revertexer;
revertexer.Revertex(fESDObj, fCurrentVertex);
}
+
+ if (AliDebugLevel() > 10) {
+ ESDPrinter p;
+ fESDObj->ForEach(p);
+ }
if (esd) {
AliFMDDebug(2, ("Writing FMD data to ESD tree"));
AliFMDReconstructor::FillESD(AliRawReader*, TTree* clusterTree,
AliESDEvent* esd) const
{
+ //
+ // Forwards to above member function
+ //
TTree* dummy = 0;
FillESD(dummy, clusterTree, esd);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff