+
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
///////////////////////////////////////////////////////////////////////////////
// //
-// TRD cluster finder for the slow simulator.
+// TRD cluster finder //
// //
///////////////////////////////////////////////////////////////////////////////
#include <TH1.h>
#include <TFile.h>
-#include "AliRun.h"
#include "AliRunLoader.h"
#include "AliLoader.h"
#include "AliRawReader.h"
+#include "AliLog.h"
#include "AliTRDclusterizerV1.h"
-#include "AliTRDmatrix.h"
#include "AliTRDgeometry.h"
#include "AliTRDdataArrayF.h"
#include "AliTRDdataArrayI.h"
#include "AliTRDdigitsManager.h"
-#include "AliTRDparameter.h"
#include "AliTRDpadPlane.h"
#include "AliTRDrawData.h"
#include "AliTRDcalibDB.h"
+#include "AliTRDSimParam.h"
#include "AliTRDRecParam.h"
#include "AliTRDCommonParam.h"
#include "AliTRDcluster.h"
ClassImp(AliTRDclusterizerV1)
//_____________________________________________________________________________
-AliTRDclusterizerV1::AliTRDclusterizerV1():AliTRDclusterizer()
+AliTRDclusterizerV1::AliTRDclusterizerV1()
+ :AliTRDclusterizer()
+ ,fDigitsManager(NULL)
{
//
// AliTRDclusterizerV1 default constructor
//
- fDigitsManager = 0;
-
}
//_____________________________________________________________________________
-AliTRDclusterizerV1::AliTRDclusterizerV1(const Text_t* name, const Text_t* title)
- :AliTRDclusterizer(name,title)
+AliTRDclusterizerV1::AliTRDclusterizerV1(const Text_t *name, const Text_t *title)
+ :AliTRDclusterizer(name,title)
+ ,fDigitsManager(new AliTRDdigitsManager())
{
//
- // AliTRDclusterizerV1 default constructor
+ // AliTRDclusterizerV1 constructor
//
- fDigitsManager = new AliTRDdigitsManager();
fDigitsManager->CreateArrays();
}
//_____________________________________________________________________________
AliTRDclusterizerV1::AliTRDclusterizerV1(const AliTRDclusterizerV1 &c)
-:AliTRDclusterizer(c)
+ :AliTRDclusterizer(c)
+ ,fDigitsManager(NULL)
{
//
// AliTRDclusterizerV1 copy constructor
//
- ((AliTRDclusterizerV1 &) c).Copy(*this);
-
}
//_____________________________________________________________________________
//
if (!fRunLoader) {
- printf("<AliTRDclusterizerV1::ReadDigits> ");
- printf("No input file open\n");
+ AliError("No run loader available");
return kFALSE;
}
+
AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
- if (!loader->TreeD()) loader->LoadDigits();
+ if (!loader->TreeD()) {
+ loader->LoadDigits();
+ }
// Read in the digit arrays
return (fDigitsManager->ReadDigits(loader->TreeD()));
}
//_____________________________________________________________________________
-Bool_t AliTRDclusterizerV1::ReadDigits(AliRawReader* rawReader)
+Bool_t AliTRDclusterizerV1::ReadDigits(AliRawReader *rawReader)
{
//
// Reads the digits arrays from the ddl file
//
- AliTRDrawData *raw = new AliTRDrawData();
- raw->SetDebug(1);
-
- fDigitsManager = raw->Raw2Digits(rawReader);
+ AliTRDrawData raw;
+ fDigitsManager = raw.Raw2Digits(rawReader);
return kTRUE;
// Generates the cluster.
//
- Int_t row, col, time;
-
- /*
- if (fTRD->IsVersion() != 1) {
- printf("<AliTRDclusterizerV1::MakeCluster> ");
- printf("TRD must be version 1 (slow simulator).\n");
- return kFALSE;
- }
- */
+ Int_t row = 0;
+ Int_t col = 0;
+ Int_t time = 0;
+ Int_t icham = 0;
+ Int_t iplan = 0;
+ Int_t isect = 0;
+ Int_t iPad = 0;
+
+ AliTRDdataArrayI *digitsIn;
+ AliTRDdataArrayI *tracksIn;
// Get the geometry
- AliTRDgeometry *geo = AliTRDgeometry::GetGeometry(fRunLoader);
+ AliTRDgeometry *geo = AliTRDgeometry::GetGeometry(fRunLoader);
- // Create a default parameter class if none is defined
- if (!fPar) {
- fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter");
- printf("<AliTRDclusterizerV1::MakeCluster> ");
- printf("Create the default parameter object.\n");
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliError("No AliTRDcalibDB instance available\n");
+ return kFALSE;
}
- fPar->Init();
- AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
- if (!calibration)
- {
- printf("<AliTRDclusterizerMI::MakeCluster> ");
- printf("ERROR getting instance of AliTRDcalibDB");
+ AliTRDSimParam *simParam = AliTRDSimParam::Instance();
+ if (!simParam) {
+ AliError("No AliTRDSimParam instance available\n");
return kFALSE;
}
- AliTRDRecParam* recParam = AliTRDRecParam::Instance();
- if (!recParam)
- {
- printf("<AliTRDclusterizerMI::MakeCluster> ");
- printf("ERROR getting instance of AliTRDRecParam");
+ AliTRDRecParam *recParam = AliTRDRecParam::Instance();
+ if (!recParam) {
+ AliError("No AliTRDRecParam instance available\n");
return kFALSE;
}
- AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
- if (!commonParam)
- {
- printf("<AliTRDdigitizer::MakeDigits> ");
- printf("Could not get common params\n");
+ AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
+ if (!commonParam) {
+ AliError("Could not get common parameters\n");
return kFALSE;
}
-
- //Float_t timeBinSize = fPar->GetDriftVelocity()
- // / fPar->GetSamplingFrequency();
- // Half of ampl.region
- // const Float_t kAmWidth = AliTRDgeometry::AmThick()/2.;
-
- //Float_t omegaTau = fPar->GetOmegaTau();
- if (fVerbose > 0) {
- //printf("<AliTRDclusterizerV1::MakeCluster> ");
- //printf("OmegaTau = %f \n",omegaTau);
- printf("<AliTRDclusterizerV1::MakeCluster> ");
- printf("Start creating clusters.\n");
- }
-
- AliTRDdataArrayI *digits;
- AliTRDdataArrayI *track0;
- AliTRDdataArrayI *track1;
- AliTRDdataArrayI *track2;
+ // ADC threshols
+ Float_t ADCthreshold = simParam->GetADCthreshold();
// Threshold value for the maximum
- Int_t maxThresh = recParam->GetClusMaxThresh();
+ Float_t maxThresh = recParam->GetClusMaxThresh();
// Threshold value for the digit signal
- Int_t sigThresh = recParam->GetClusSigThresh();
+ Float_t sigThresh = recParam->GetClusSigThresh();
+
// Iteration limit for unfolding procedure
const Float_t kEpsilon = 0.01;
-
const Int_t kNclus = 3;
const Int_t kNsig = 5;
- const Int_t kNtrack = 3 * kNclus;
+ const Int_t kNdict = AliTRDdigitsManager::kNDict;
+ const Int_t kNtrack = kNdict * kNclus;
Int_t iType = 0;
Int_t iUnfold = 0;
Double_t ratioLeft = 1.0;
Double_t ratioRight = 1.0;
- //
+ Int_t iClusterROC = 0;
+
Double_t padSignal[kNsig];
Double_t clusterSignal[kNclus];
Double_t clusterPads[kNclus];
- Int_t clusterDigit[kNclus];
- Int_t clusterTracks[kNtrack];
- Int_t chamBeg = 0;
- Int_t chamEnd = AliTRDgeometry::Ncham();
- Int_t planBeg = 0;
- Int_t planEnd = AliTRDgeometry::Nplan();
- Int_t sectBeg = 0;
- Int_t sectEnd = AliTRDgeometry::Nsect();
+ Int_t chamBeg = 0;
+ Int_t chamEnd = AliTRDgeometry::Ncham();
+ Int_t planBeg = 0;
+ Int_t planEnd = AliTRDgeometry::Nplan();
+ Int_t sectBeg = 0;
+ Int_t sectEnd = AliTRDgeometry::Nsect();
+ Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
+
+ Int_t dummy[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+
+ AliDebug(1,Form("Number of Time Bins = %d.\n",nTimeTotal));
// Start clustering in every chamber
- for (Int_t icham = chamBeg; icham < chamEnd; icham++) {
- for (Int_t iplan = planBeg; iplan < planEnd; iplan++) {
- for (Int_t isect = sectBeg; isect < sectEnd; isect++) {
+ for (icham = chamBeg; icham < chamEnd; icham++) {
+ for (iplan = planBeg; iplan < planEnd; iplan++) {
+ for (isect = sectBeg; isect < sectEnd; isect++) {
Int_t idet = geo->GetDetector(iplan,icham,isect);
+ // Get the digits
+ digitsIn = fDigitsManager->GetDigits(idet);
+ // This is to take care of switched off super modules
+ if (digitsIn->GetNtime() == 0) {
+ continue;
+ }
+ digitsIn->Expand();
+ AliTRDdataArrayI *tracksTmp = fDigitsManager->GetDictionary(idet,0);
+ tracksTmp->Expand();
+
+ Int_t nRowMax = commonParam->GetRowMax(iplan,icham,isect);
+ Int_t nColMax = commonParam->GetColMax(iplan);
+
+ AliTRDpadPlane *padPlane = commonParam->GetPadPlane(iplan,icham);
+
Int_t nClusters = 0;
Int_t nClusters2pad = 0;
Int_t nClusters3pad = 0;
Int_t nClusters5pad = 0;
Int_t nClustersLarge = 0;
- if (fVerbose > 0) {
- printf("<AliTRDclusterizerV1::MakeCluster> ");
- printf("Analyzing chamber %d, plane %d, sector %d.\n"
- ,icham,iplan,isect);
- }
-
- Int_t nRowMax = commonParam->GetRowMax(iplan,icham,isect);
- Int_t nColMax = commonParam->GetColMax(iplan);
- Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
+ // Apply the gain and the tail cancelation via digital filter
+ AliTRDdataArrayF *digitsOut = new AliTRDdataArrayF(digitsIn->GetNrow()
+ ,digitsIn->GetNcol()
+ ,digitsIn->GetNtime());
+ Transform(digitsIn,digitsOut,idet,nRowMax,nColMax,nTimeTotal,ADCthreshold);
- AliTRDpadPlane *padPlane = commonParam->GetPadPlane(iplan,icham);
-
- // Get the digits
- digits = fDigitsManager->GetDigits(idet);
- digits->Expand();
- track0 = fDigitsManager->GetDictionary(idet,0);
- track0->Expand();
- track1 = fDigitsManager->GetDictionary(idet,1);
- track1->Expand();
- track2 = fDigitsManager->GetDictionary(idet,2);
- track2->Expand();
+ // Input digits are not needed any more
+ digitsIn->Compress(1,0);
// Loop through the chamber and find the maxima
for ( row = 0; row < nRowMax; row++) {
for ( col = 2; col < nColMax; col++) {
- //for ( col = 4; col < nColMax-2; col++) {
for (time = 0; time < nTimeTotal; time++) {
- Int_t signalL = TMath::Abs(digits->GetDataUnchecked(row,col ,time));
- Int_t signalM = TMath::Abs(digits->GetDataUnchecked(row,col-1,time));
- Int_t signalR = TMath::Abs(digits->GetDataUnchecked(row,col-2,time));
+ Float_t signalL = TMath::Abs(digitsOut->GetDataUnchecked(row,col ,time));
+ Float_t signalM = TMath::Abs(digitsOut->GetDataUnchecked(row,col-1,time));
+ Float_t signalR = TMath::Abs(digitsOut->GetDataUnchecked(row,col-2,time));
-// // Look for the maximum
-// if (signalM >= maxThresh) {
-// if (((signalL >= sigThresh) &&
-// (signalL < signalM)) ||
-// ((signalR >= sigThresh) &&
-// (signalR < signalM))) {
-// // Maximum found, mark the position by a negative signal
-// digits->SetDataUnchecked(row,col-1,time,-signalM);
-// }
-// }
// Look for the maximum
if (signalM >= maxThresh) {
- if ( (TMath::Abs(signalL)<=signalM) && (TMath::Abs(signalR)<=signalM) &&
- (TMath::Abs(signalL)+TMath::Abs(signalR))>sigThresh ) {
- // Maximum found, mark the position by a negative signal
- digits->SetDataUnchecked(row,col-1,time,-signalM);
+ if ((TMath::Abs(signalL) <= signalM) &&
+ (TMath::Abs(signalR) <= signalM)) {
+ if ((TMath::Abs(signalL) >= sigThresh) ||
+ (TMath::Abs(signalR) >= sigThresh)) {
+ // Maximum found, mark the position by a negative signal
+ digitsOut->SetDataUnchecked(row,col-1,time,-signalM);
+ }
}
}
- }
- }
- }
+ }
+ }
+ }
+ tracksTmp->Compress(1,0);
+
+ // The index to the first cluster of a given ROC
+ Int_t firstClusterROC = -1;
+ // The number of cluster in a given ROC
+ Int_t nClusterROC = 0;
// Now check the maxima and calculate the cluster position
for ( row = 0; row < nRowMax ; row++) {
for ( col = 1; col < nColMax-1; col++) {
// Maximum found ?
- if (digits->GetDataUnchecked(row,col,time) < 0) {
+ if (digitsOut->GetDataUnchecked(row,col,time) < 0.0) {
- Int_t iPad;
for (iPad = 0; iPad < kNclus; iPad++) {
Int_t iPadCol = col - 1 + iPad;
- clusterSignal[iPad] = TMath::Abs(digits->GetDataUnchecked(row
- ,iPadCol
- ,time));
- clusterDigit[iPad] = digits->GetIndexUnchecked(row,iPadCol,time);
- clusterTracks[3*iPad ] = track0->GetDataUnchecked(row,iPadCol,time) - 1;
- clusterTracks[3*iPad+1] = track1->GetDataUnchecked(row,iPadCol,time) - 1;
- clusterTracks[3*iPad+2] = track2->GetDataUnchecked(row,iPadCol,time) - 1;
+ clusterSignal[iPad] =
+ TMath::Abs(digitsOut->GetDataUnchecked(row,iPadCol,time));
}
// Count the number of pads in the cluster
Int_t nPadCount = 0;
- Int_t ii = 0;
- while (TMath::Abs(digits->GetDataUnchecked(row,col-ii ,time))
- >= sigThresh) {
+ Int_t ii;
+ // Look to the left
+ ii = 0;
+ while (TMath::Abs(digitsOut->GetDataUnchecked(row,col-ii ,time)) >= sigThresh) {
nPadCount++;
ii++;
if (col-ii < 0) break;
}
+ // Look to the right
ii = 0;
- while (TMath::Abs(digits->GetDataUnchecked(row,col+ii+1,time))
- >= sigThresh) {
+ while (TMath::Abs(digitsOut->GetDataUnchecked(row,col+ii+1,time)) >= sigThresh) {
nPadCount++;
ii++;
if (col+ii+1 >= nColMax) break;
}
-
nClusters++;
switch (nPadCount) {
case 2:
break;
};
- // Look for 5 pad cluster with minimum in the middle
+ // Look for 5 pad cluster with minimum in the middle
Bool_t fivePadCluster = kFALSE;
- if (col < nColMax-3) {
- if (digits->GetDataUnchecked(row,col+2,time) < 0) {
+ if (col < (nColMax - 3)) {
+ if (digitsOut->GetDataUnchecked(row,col+2,time) < 0) {
fivePadCluster = kTRUE;
}
- if ((fivePadCluster) && (col < nColMax-5)) {
- if (digits->GetDataUnchecked(row,col+4,time) >= sigThresh) {
+ if ((fivePadCluster) && (col < (nColMax - 5))) {
+ if (digitsOut->GetDataUnchecked(row,col+4,time) >= sigThresh) {
fivePadCluster = kFALSE;
}
}
- if ((fivePadCluster) && (col > 1)) {
- if (digits->GetDataUnchecked(row,col-2,time) >= sigThresh) {
+ if ((fivePadCluster) && (col > 1)) {
+ if (digitsOut->GetDataUnchecked(row,col-2,time) >= sigThresh) {
fivePadCluster = kFALSE;
}
}
// Unfold the 5 pad cluster
if (fivePadCluster) {
for (iPad = 0; iPad < kNsig; iPad++) {
- padSignal[iPad] = TMath::Abs(digits->GetDataUnchecked(row
- ,col-1+iPad
- ,time));
+ padSignal[iPad] = TMath::Abs(digitsOut->GetDataUnchecked(row
+ ,col-1+iPad
+ ,time));
}
// Unfold the two maxima and set the signal on
// the overlapping pad to the ratio
iUnfold = 1;
}
-
Double_t clusterCharge = clusterSignal[0]
+ clusterSignal[1]
+ clusterSignal[2];
// The position of the cluster
- clusterPads[0] = row + 0.5;
+ clusterPads[0] = row + 0.5;
// Take the shift of the additional time bins into account
clusterPads[2] = time + 0.5;
- // correct for t0
- clusterPads[2] -= calibration->GetT0(idet, col, row);
-
if (recParam->LUTOn()) {
// Calculate the position of the cluster by using the
// lookup table method
- clusterPads[1] =
- recParam->LUTposition(iplan,clusterSignal[0]
- ,clusterSignal[1]
- ,clusterSignal[2]);
+ clusterPads[1] = recParam->LUTposition(iplan,clusterSignal[0]
+ ,clusterSignal[1]
+ ,clusterSignal[2]);
}
else {
// Calculate the position of the cluster by using the
// center of gravity method
- for (Int_t i=0;i<5;i++) padSignal[i]=0;
- padSignal[2] = TMath::Abs(digits->GetDataUnchecked(row,col,time)); // central pad
- padSignal[1] = TMath::Abs(digits->GetDataUnchecked(row,col-1,time)); // left pad
- padSignal[3] = TMath::Abs(digits->GetDataUnchecked(row,col+1,time)); // right pad
- if (col>2 &&TMath::Abs(digits->GetDataUnchecked(row,col-2,time)<padSignal[1])){
- padSignal[0] = TMath::Abs(digits->GetDataUnchecked(row,col-2,time));
+ for (Int_t i = 0; i < kNsig; i++) {
+ padSignal[i] = 0.0;
}
- if (col<nColMax-3 &&TMath::Abs(digits->GetDataUnchecked(row,col+2,time)<padSignal[3])){
- padSignal[4] = TMath::Abs(digits->GetDataUnchecked(row,col+2,time));
+ padSignal[2] = TMath::Abs(digitsOut->GetDataUnchecked(row,col ,time)); // Central pad
+ padSignal[1] = TMath::Abs(digitsOut->GetDataUnchecked(row,col-1,time)); // Left pad
+ padSignal[3] = TMath::Abs(digitsOut->GetDataUnchecked(row,col+1,time)); // Right pad
+ if ((col > 2) &&
+ (TMath::Abs(digitsOut->GetDataUnchecked(row,col-2,time)) < padSignal[1])) {
+ padSignal[0] = TMath::Abs(digitsOut->GetDataUnchecked(row,col-2,time));
+ }
+ if ((col < nColMax - 3) &&
+ (TMath::Abs(digitsOut->GetDataUnchecked(row,col+2,time)) < padSignal[3])) {
+ padSignal[4] = TMath::Abs(digitsOut->GetDataUnchecked(row,col+2,time));
}
- clusterPads[1] = GetCOG(padSignal);
- //Double_t check = fPar->LUTposition(iplan,clusterSignal[0]
- // ,clusterSignal[1]
- // ,clusterSignal[2]);
- // Float_t diff = clusterPads[1] - check;
-
+ clusterPads[1] = GetCOG(padSignal);
}
Double_t q0 = clusterSignal[0];
Double_t q1 = clusterSignal[1];
Double_t q2 = clusterSignal[2];
- Double_t clusterSigmaY2 = (q1*(q0+q2)+4*q0*q2) /
- (clusterCharge*clusterCharge);
+ Double_t clusterSigmaY2 = (q1 * (q0 + q2) + 4.0 * q0 * q2)
+ / (clusterCharge*clusterCharge);
- Float_t vdrift = calibration->GetVdrift(idet, col, row);
-
+ //
// Calculate the position and the error
- Double_t colSize = padPlane->GetColSize(col);
- Double_t rowSize = padPlane->GetRowSize(row);
+ //
+
+ // Correct for t0
+ Int_t clusterTimeBin = TMath::Nint(time - calibration->GetT0(idet,col,row));
+ Double_t colSize = padPlane->GetColSize(col);
+ Double_t rowSize = padPlane->GetRowSize(row);
+
Double_t clusterPos[3];
- clusterPos[0] = padPlane->GetColPos(col) + (clusterPads[1]-0.5)*colSize; // MI change
- clusterPos[1] = padPlane->GetRowPos(row) -0.5*rowSize; //MI change
- clusterPos[2] = CalcXposFromTimebin(clusterPads[2], vdrift);
+ clusterPos[0] = padPlane->GetColPos(col) - (clusterPads[1] + 0.5) * colSize;
+ clusterPos[1] = padPlane->GetRowPos(row) - 0.5 * rowSize;
+ clusterPos[2] = CalcXposFromTimebin(clusterPads[2],idet,col,row);
Double_t clusterSig[2];
- clusterSig[0] = (clusterSigmaY2 + 1./12.) * colSize*colSize;
- clusterSig[1] = rowSize * rowSize / 12.;
-
+ clusterSig[0] = (clusterSigmaY2 + 1.0/12.0) * colSize*colSize;
+ clusterSig[1] = rowSize * rowSize / 12.0;
- // Add the cluster to the output array
- AliTRDcluster * cluster = AddCluster(clusterPos
- ,(Int_t) clusterPads[2]
- ,idet
- ,clusterCharge
- ,clusterTracks
- ,clusterSig
- ,iType,clusterPads[1]);
- //
- //
- Short_t signals[7]={0,0,0,0,0,0,0};
- for (Int_t jPad = col-3;jPad<=col+3;jPad++){
- if (jPad<0 ||jPad>=nColMax-1) continue;
- signals[jPad-col+3] = TMath::Abs(digits->GetDataUnchecked(row,jPad,time));
+ // Add the cluster to the output array
+ // The track indices will be stored later
+ AliTRDcluster *cluster = AddCluster(clusterPos
+ ,clusterTimeBin
+ ,idet
+ ,clusterCharge
+ ,dummy
+ ,clusterSig
+ ,iType
+ ,clusterPads[1]);
+
+ // Store the amplitudes of the pads in the cluster for later analysis
+ Short_t signals[7] = { 0, 0, 0, 0, 0, 0, 0 };
+ for (Int_t jPad = col-3; jPad <= col+3; jPad++) {
+ if ((jPad < 0) ||
+ (jPad >= nColMax-1)) {
+ continue;
+ }
+ signals[jPad-col+3] = TMath::Nint(TMath::Abs(digitsOut->GetDataUnchecked(row,jPad,time)));
}
cluster->SetSignals(signals);
- }
- }
- }
- }
- // Compress the arrays
- digits->Compress(1,0);
- track0->Compress(1,0);
- track1->Compress(1,0);
- track2->Compress(1,0);
+ // Temporarily store the row, column and time bin of the center pad
+ // Used to later on assign the track indices
+ cluster->SetLabel( row,0);
+ cluster->SetLabel( col,1);
+ cluster->SetLabel(time,2);
+
+ // Store the index of the first cluster in the current ROC
+ if (firstClusterROC < 0) {
+ firstClusterROC = RecPoints()->GetEntriesFast() - 1;
+ }
+ // Count the number of cluster in the current ROC
+ nClusterROC++;
+
+ } // if: Maximum found ?
+
+ } // loop: pad columns
+ } // loop: time bins
+ } // loop: pad rows
+
+ delete digitsOut;
+
+ //
+ // Add the track indices to the found clusters
+ //
+
+ // Temporary array to collect the track indices
+ Int_t *idxTracks = new Int_t[kNtrack*nClusterROC];
+
+ // Loop through the dictionary arrays one-by-one
+ // to keep memory consumption low
+ for (Int_t iDict = 0; iDict < kNdict; iDict++) {
+
+ tracksIn = fDigitsManager->GetDictionary(idet,iDict);
+ tracksIn->Expand();
+
+ // Loop though the clusters found in this ROC
+ for (iClusterROC = 0; iClusterROC < nClusterROC; iClusterROC++) {
+
+ AliTRDcluster *cluster = (AliTRDcluster *)
+ RecPoints()->UncheckedAt(firstClusterROC+iClusterROC);
+ row = cluster->GetLabel(0);
+ col = cluster->GetLabel(1);
+ time = cluster->GetLabel(2);
+
+ for (iPad = 0; iPad < kNclus; iPad++) {
+ Int_t iPadCol = col - 1 + iPad;
+ Int_t index = tracksIn->GetDataUnchecked(row,iPadCol,time) - 1;
+ idxTracks[3*iPad+iDict + iClusterROC*kNtrack] = index;
+ }
+
+ }
+
+ // Compress the arrays
+ tracksIn->Compress(1,0);
+
+ }
+
+ // Copy the track indices into the cluster
+ // Loop though the clusters found in this ROC
+ for (iClusterROC = 0; iClusterROC < nClusterROC; iClusterROC++) {
+
+ AliTRDcluster *cluster = (AliTRDcluster *)
+ RecPoints()->UncheckedAt(firstClusterROC+iClusterROC);
+ cluster->SetLabel(-9999,0);
+ cluster->SetLabel(-9999,1);
+ cluster->SetLabel(-9999,2);
+
+ cluster->AddTrackIndex(&idxTracks[iClusterROC*kNtrack]);
+
+ }
+
+ delete [] idxTracks;
// Write the cluster and reset the array
WriteClusters(idet);
ResetRecPoints();
- }
- }
- }
- if (fVerbose > 0) {
- printf("<AliTRDclusterizerV1::MakeCluster> ");
- printf("Done.\n");
- }
+ } // loop: Sectors
+ } // loop: Planes
+ } // loop: Chambers
return kTRUE;
}
+//_____________________________________________________________________________
Double_t AliTRDclusterizerV1::GetCOG(Double_t signal[5])
{
//
- // get COG position
- // used for clusters with more than 3 pads - where LUT not applicable
- Double_t sum = signal[0]+signal[1]+signal[2]+signal[3]+signal[4];
- Double_t res = (0.0*(-signal[0]+signal[4])+(-signal[1]+signal[3]))/sum;
- return res;
-}
+ // Get COG position
+ // Used for clusters with more than 3 pads - where LUT not applicable
+ //
+ Double_t sum = signal[0]
+ + signal[1]
+ + signal[2]
+ + signal[3]
+ + signal[4];
+ Double_t res = (0.0 * (-signal[0] + signal[4])
+ + (-signal[1] + signal[3])) / sum;
+
+ return res;
+
+}
//_____________________________________________________________________________
-Double_t AliTRDclusterizerV1::Unfold(Double_t eps, Int_t plane, Double_t* padSignal)
+Double_t AliTRDclusterizerV1::Unfold(Double_t eps, Int_t plane, Double_t *padSignal)
{
//
// Method to unfold neighbouring maxima.
// The resulting ratio is then returned to the calling method.
//
- AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
- if (!calibration)
- {
- printf("<AliTRDclusterizerMI::Unfold> ");
- printf("ERROR getting instance of AliTRDcalibDB");
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliError("No AliTRDcalibDB instance available\n");
return kFALSE;
}
Int_t irc = 0;
- Int_t itStep = 0; // Count iteration steps
+ Int_t itStep = 0; // Count iteration steps
- Double_t ratio = 0.5; // Start value for ratio
- Double_t prevRatio = 0; // Store previous ratio
+ Double_t ratio = 0.5; // Start value for ratio
+ Double_t prevRatio = 0.0; // Store previous ratio
- Double_t newLeftSignal[3] = {0}; // Array to store left cluster signal
- Double_t newRightSignal[3] = {0}; // Array to store right cluster signal
- Double_t newSignal[3] = {0};
+ Double_t newLeftSignal[3] = { 0.0, 0.0, 0.0 }; // Array to store left cluster signal
+ Double_t newRightSignal[3] = { 0.0, 0.0, 0.0 }; // Array to store right cluster signal
+ Double_t newSignal[3] = { 0.0, 0.0, 0.0 };
// Start the iteration
while ((TMath::Abs(prevRatio - ratio) > eps) && (itStep < 10)) {
Double_t maxLeft = (ratio*padSignal[2] - padSignal[0])
/ (padSignal[0] + padSignal[1] + ratio*padSignal[2]);
Double_t maxRight = (padSignal[4] - (1-ratio)*padSignal[2])
- / ((1-ratio)*padSignal[2] + padSignal[3] + padSignal[4]);
+ / ((1.0 - ratio)*padSignal[2] + padSignal[3] + padSignal[4]);
// Set cluster charge ratio
irc = calibration->PadResponse(1.0,maxLeft ,plane,newSignal);
// Calculate new overlapping ratio
ratio = TMath::Min((Double_t)1.0,newLeftSignal[2] /
- (newLeftSignal[2] + newRightSignal[0]));
+ (newLeftSignal[2] + newRightSignal[0]));
}
}
+//_____________________________________________________________________________
+void AliTRDclusterizerV1::Transform(AliTRDdataArrayI *digitsIn
+ , AliTRDdataArrayF *digitsOut
+ , Int_t idet, Int_t nRowMax
+ , Int_t nColMax, Int_t nTimeTotal
+ , Float_t ADCthreshold)
+{
+ //
+ // Apply gain factor
+ // Apply tail cancelation: Transform digitsIn to digitsOut
+ //
+
+ Int_t iRow = 0;
+ Int_t iCol = 0;
+ Int_t iTime = 0;
+
+ AliTRDRecParam *recParam = AliTRDRecParam::Instance();
+ if (!recParam) {
+ AliError("No AliTRDRecParam instance available\n");
+ return;
+ }
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliError("No AliTRDcalibDB instance available\n");
+ return;
+ }
+
+ Double_t *inADC = new Double_t[nTimeTotal]; // ADC data before tail cancellation
+ Double_t *outADC = new Double_t[nTimeTotal]; // ADC data after tail cancellation
+
+ AliDebug(1,Form("Tail cancellation (nExp = %d) for detector %d.\n"
+ ,recParam->GetTCnexp(),idet));
+
+ for (iRow = 0; iRow < nRowMax; iRow++ ) {
+ for (iCol = 0; iCol < nColMax; iCol++ ) {
+
+ for (iTime = 0; iTime < nTimeTotal; iTime++) {
+
+ //
+ // Add gain
+ //
+ Double_t gain = calibration->GetGainFactor(idet,iCol,iRow);
+ if (gain == 0.0) {
+ AliError("Not a valid gain\n");
+ }
+ inADC[iTime] = digitsIn->GetDataUnchecked(iRow,iCol,iTime);
+ inADC[iTime] /= gain;
+ outADC[iTime] = inADC[iTime];
+
+ }
+
+ // Apply the tail cancelation via the digital filter
+ if (recParam->TCOn()) {
+ DeConvExp(inADC,outADC,nTimeTotal,recParam->GetTCnexp());
+ }
+
+ for (iTime = 0; iTime < nTimeTotal; iTime++) {
+
+ // Store the amplitude of the digit if above threshold
+ if (outADC[iTime] > ADCthreshold) {
+ digitsOut->SetDataUnchecked(iRow,iCol,iTime,outADC[iTime]);
+ }
+
+ }
+
+ }
+ }
+
+ delete [] inADC;
+ delete [] outADC;
+
+ return;
+
+}
+
+//_____________________________________________________________________________
+void AliTRDclusterizerV1::DeConvExp(Double_t *source, Double_t *target
+ , Int_t n, Int_t nexp)
+{
+ //
+ // Tail cancellation by deconvolution for PASA v4 TRF
+ //
+
+ Double_t rates[2];
+ Double_t coefficients[2];
+
+ // Initialization (coefficient = alpha, rates = lambda)
+ Double_t R1 = 1.0;
+ Double_t R2 = 1.0;
+ Double_t C1 = 0.5;
+ Double_t C2 = 0.5;
+
+ if (nexp == 1) { // 1 Exponentials
+ R1 = 1.156;
+ R2 = 0.130;
+ C1 = 0.066;
+ C2 = 0.000;
+ }
+ if (nexp == 2) { // 2 Exponentials
+ R1 = 1.156;
+ R2 = 0.130;
+ C1 = 0.114;
+ C2 = 0.624;
+ }
+
+ coefficients[0] = C1;
+ coefficients[1] = C2;
+
+ Double_t Dt = 0.1;
+
+ rates[0] = TMath::Exp(-Dt/(R1));
+ rates[1] = TMath::Exp(-Dt/(R2));
+
+ Int_t i = 0;
+ Int_t k = 0;
+
+ Double_t reminder[2];
+ Double_t correction;
+ Double_t result;
+
+ // Attention: computation order is important
+ correction = 0.0;
+ for (k = 0; k < nexp; k++) {
+ reminder[k] = 0.0;
+ }
+ for (i = 0; i < n; i++) {
+ result = (source[i] - correction); // No rescaling
+ target[i] = result;
+
+ for (k = 0; k < nexp; k++) {
+ reminder[k] = rates[k] * (reminder[k] + coefficients[k] * result);
+ }
+ correction = 0.0;
+ for (k = 0; k < nexp; k++) {
+ correction += reminder[k];
+ }
+ }
+
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff