+
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.7 2000/06/27 13:08:50 cblume
-Changed to Copy(TObject &A) to appease the HP-compiler
-
-Revision 1.6 2000/06/09 11:10:07 cblume
-Compiler warnings and coding conventions, next round
-
-Revision 1.5 2000/06/08 18:32:58 cblume
-Make code compliant to coding conventions
-
-Revision 1.4 2000/06/07 16:27:01 cblume
-Try to remove compiler warnings on Sun and HP
-
-Revision 1.3 2000/05/08 16:17:27 cblume
-Merge TRD-develop
-
-Revision 1.1.4.1 2000/05/08 15:09:01 cblume
-Introduce AliTRDdigitsManager
-
-Revision 1.1 2000/02/28 18:58:54 cblume
-Add new TRD classes
-
-*/
+/* $Id$ */
///////////////////////////////////////////////////////////////////////////////
// //
#include <TF1.h>
#include <TTree.h>
+#include <TH1.h>
+#include <TFile.h>
+
+#include "AliRun.h"
+#include "AliRunLoader.h"
+#include "AliLoader.h"
+#include "AliRawReader.h"
#include "AliTRDclusterizerV1.h"
-#include "AliTRDmatrix.h"
#include "AliTRDgeometry.h"
-#include "AliTRDdigitizer.h"
-#include "AliTRDrecPoint.h"
#include "AliTRDdataArrayF.h"
+#include "AliTRDdataArrayI.h"
+#include "AliTRDdigitsManager.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 default constructor
//
- fDigitsManager = NULL;
+ fDigitsManager = 0;
}
//
fDigitsManager = new AliTRDdigitsManager();
-
- Init();
+ fDigitsManager->CreateArrays();
}
//_____________________________________________________________________________
AliTRDclusterizerV1::AliTRDclusterizerV1(const AliTRDclusterizerV1 &c)
+:AliTRDclusterizer(c)
{
//
// AliTRDclusterizerV1 copy constructor
if (fDigitsManager) {
delete fDigitsManager;
+ fDigitsManager = NULL;
}
}
}
//_____________________________________________________________________________
-void AliTRDclusterizerV1::Copy(TObject &c)
+void AliTRDclusterizerV1::Copy(TObject &c) const
{
//
// Copy function
//
- ((AliTRDclusterizerV1 &) c).fClusMaxThresh = fClusMaxThresh;
- ((AliTRDclusterizerV1 &) c).fClusSigThresh = fClusSigThresh;
- ((AliTRDclusterizerV1 &) c).fClusMethod = fClusMethod;
- ((AliTRDclusterizerV1 &) c).fDigitsManager = NULL;
+ ((AliTRDclusterizerV1 &) c).fDigitsManager = 0;
AliTRDclusterizer::Copy(c);
}
//_____________________________________________________________________________
-void AliTRDclusterizerV1::Init()
+Bool_t AliTRDclusterizerV1::ReadDigits()
{
//
- // Initializes the cluster finder
+ // Reads the digits arrays from the input aliroot file
//
- // The default parameter for the clustering
- fClusMaxThresh = 5.0;
- fClusSigThresh = 2.0;
- fClusMethod = 1;
+ if (!fRunLoader) {
+ printf("<AliTRDclusterizerV1::ReadDigits> ");
+ printf("No input file open\n");
+ return kFALSE;
+ }
+ AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
+ if (!loader->TreeD()) loader->LoadDigits();
+
+ // Read in the digit arrays
+ return (fDigitsManager->ReadDigits(loader->TreeD()));
}
//_____________________________________________________________________________
-Bool_t AliTRDclusterizerV1::ReadDigits()
+Bool_t AliTRDclusterizerV1::ReadDigits(AliRawReader* rawReader)
{
//
- // Reads the digits arrays from the input aliroot file
+ // Reads the digits arrays from the ddl file
//
- if (!fInputFile) {
- printf("AliTRDclusterizerV1::ReadDigits -- ");
- printf("No input file open\n");
- return kFALSE;
- }
+ AliTRDrawData raw;
- // Read in the digit arrays
- return (fDigitsManager->ReadDigits());
+ fDigitsManager = raw.Raw2Digits(rawReader);
+
+ return kTRUE;
}
//_____________________________________________________________________________
-Bool_t AliTRDclusterizerV1::MakeCluster()
+Bool_t AliTRDclusterizerV1::MakeClusters()
{
//
// Generates the cluster.
Int_t row, col, time;
- // Get the pointer to the detector class and check for version 1
- AliTRD *trd = (AliTRD*) gAlice->GetDetector("TRD");
- if (trd->IsVersion() != 1) {
- printf("AliTRDclusterizerV1::MakeCluster -- ");
+ /*
+ if (fTRD->IsVersion() != 1) {
+ printf("<AliTRDclusterizerV1::MakeCluster> ");
printf("TRD must be version 1 (slow simulator).\n");
return kFALSE;
}
+ */
// Get the geometry
- AliTRDgeometry *geo = trd->GetGeometry();
-
- printf("AliTRDclusterizerV1::MakeCluster -- ");
- printf("Start creating clusters.\n");
-
- AliTRDdataArrayI *digits;
-
- // Parameters
- Float_t maxThresh = fClusMaxThresh; // threshold value for maximum
- Float_t signalThresh = fClusSigThresh; // threshold value for digit signal
- Int_t clusteringMethod = fClusMethod; // clustering method option (for testing)
-
+ AliTRDgeometry *geo = AliTRDgeometry::GetGeometry(fRunLoader);
+ AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
+ if (!calibration)
+ {
+ printf("<AliTRDclusterizerV1::MakeCluster> ");
+ printf("ERROR getting instance of AliTRDcalibDB");
+ return kFALSE;
+ }
+
+ AliTRDSimParam* simParam = AliTRDSimParam::Instance();
+ if (!simParam)
+ {
+ printf("<AliTRDclusterizerV1::MakeCluster> ");
+ printf("ERROR getting instance of AliTRDSimParam");
+ return kFALSE;
+ }
+
+ AliTRDRecParam* recParam = AliTRDRecParam::Instance();
+ if (!recParam)
+ {
+ printf("<AliTRDclusterizerV1::MakeCluster> ");
+ printf("ERROR getting instance of AliTRDRecParam");
+ return kFALSE;
+ }
+
+ AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
+ if (!commonParam)
+ {
+ printf("<AliTRDclusterizerV1::MakeDigits> ");
+ printf("Could not get common params\n");
+ return kFALSE;
+ }
+
+ Float_t ADCthreshold = simParam->GetADCthreshold();
+
+ if (fVerbose > 0) {
+ //printf("<AliTRDclusterizerV1::MakeCluster> ");
+ //printf("OmegaTau = %f \n",omegaTau);
+ printf("<AliTRDclusterizerV1::MakeCluster> ");
+ printf("Start creating clusters.\n");
+ }
+
+ AliTRDdataArrayI *digitsIn;
+ AliTRDdataArrayI *track0;
+ AliTRDdataArrayI *track1;
+ AliTRDdataArrayI *track2;
+
+ // Threshold value for the maximum
+ Float_t maxThresh = recParam->GetClusMaxThresh();
+ // Threshold value for the digit signal
+ 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;
- Int_t chamBeg = 0;
- Int_t chamEnd = kNcham;
- if (trd->GetSensChamber() >= 0) {
- chamBeg = trd->GetSensChamber();
- chamEnd = chamBeg + 1;
- }
- Int_t planBeg = 0;
- Int_t planEnd = kNplan;
- if (trd->GetSensPlane() >= 0) {
- planBeg = trd->GetSensPlane();
- planEnd = planBeg + 1;
+ Int_t iType = 0;
+ Int_t iUnfold = 0;
+ Double_t ratioLeft = 1.0;
+ Double_t ratioRight = 1.0;
+
+ //
+ Double_t padSignal[kNsig];
+ Double_t clusterSignal[kNclus];
+ Double_t clusterPads[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 nTimeTotal = calibration->GetNumberOfTimeBins();
+
+ if (fVerbose > 0) {
+ printf("<AliTRDclusterizerV1::MakeCluster> ");
+ printf("Number of Time Bins = %d.\n",nTimeTotal);
}
- Int_t sectBeg = 0;
- Int_t sectEnd = kNsect;
- // *** Start clustering *** in every chamber
+ // 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++) {
- if (trd->GetSensSector() >= 0) {
- Int_t sens1 = trd->GetSensSector();
- Int_t sens2 = sens1 + trd->GetSensSectorRange();
- sens2 -= ((Int_t) (sens2 / kNsect)) * kNsect;
- if (sens1 < sens2) {
- if ((isect < sens1) || (isect >= sens2)) continue;
- }
- else {
- if ((isect < sens1) && (isect >= sens2)) continue;
- }
- }
+ Int_t idet = geo->GetDetector(iplan,icham,isect);
- Int_t idet = geo->GetDetector(iplan,icham,isect);
-
- Int_t nClusters = 0;
- printf("AliTRDclusterizerV1::MakeCluster -- ");
- printf("Analyzing chamber %d, plane %d, sector %d.\n"
- ,icham,iplan,isect);
-
- Int_t nRowMax = geo->GetRowMax(iplan,icham,isect);
- Int_t nColMax = geo->GetColMax(iplan);
- Int_t nTimeMax = geo->GetTimeMax();
-
- // Create a detector matrix to keep maxima
- AliTRDmatrix *digitMatrix = new AliTRDmatrix(nRowMax,nColMax,nTimeMax
- ,isect,icham,iplan);
- // Create a matrix to contain maximum flags
- AliTRDmatrix *maximaMatrix = new AliTRDmatrix(nRowMax,nColMax,nTimeMax
- ,isect,icham,iplan);
-
- // Read in the digits
- digits = fDigitsManager->GetDigits(idet);
-
- // Loop through the detector pixel
- for (time = 0; time < nTimeMax; time++) {
- for ( col = 0; col < nColMax; col++) {
- for ( row = 0; row < nRowMax; row++) {
-
- Int_t signal = digits->GetData(row,col,time);
- Int_t index = digits->GetIndex(row,col,time);
-
- // Fill the detector matrix
- if (signal > signalThresh) {
- // Store the signal amplitude
- digitMatrix->SetSignal(row,col,time,signal);
- // Store the digits number
- digitMatrix->AddTrack(row,col,time,index);
- }
+ Int_t nRowMax = commonParam->GetRowMax(iplan,icham,isect);
+ Int_t nColMax = commonParam->GetColMax(iplan);
- }
- }
- }
+ Int_t nClusters = 0;
+ Int_t nClusters2pad = 0;
+ Int_t nClusters3pad = 0;
+ Int_t nClusters4pad = 0;
+ Int_t nClusters5pad = 0;
+ Int_t nClustersLarge = 0;
- // Loop chamber and find maxima in digitMatrix
- for ( row = 0; row < nRowMax; row++) {
- for ( col = 1; col < nColMax; col++) {
- for (time = 0; time < nTimeMax; time++) {
-
- if (digitMatrix->GetSignal(row,col,time)
- < digitMatrix->GetSignal(row,col - 1,time)) {
- // really maximum?
- if (col > 1) {
- if (digitMatrix->GetSignal(row,col - 2,time)
- < digitMatrix->GetSignal(row,col - 1,time)) {
- // yes, so set maximum flag
- maximaMatrix->SetSignal(row,col - 1,time,1);
- }
- else maximaMatrix->SetSignal(row,col - 1,time,0);
- }
- }
+ if (fVerbose > 0) {
+ printf("<AliTRDclusterizerV1::MakeCluster> ");
+ printf("Analyzing chamber %d, plane %d, sector %d.\n"
+ ,icham,iplan,isect);
+ }
- } // time
- } // col
- } // row
-
- // now check maxima and calculate cluster position
- for ( row = 0; row < nRowMax; row++) {
- for ( col = 1; col < nColMax; col++) {
- for (time = 0; time < nTimeMax; time++) {
-
- if ((maximaMatrix->GetSignal(row,col,time) > 0)
- && (digitMatrix->GetSignal(row,col,time) > maxThresh)) {
-
- // Ratio resulting from unfolding
- Float_t ratio = 0;
- // Signals on max and neighbouring pads
- Float_t padSignal[kNsig] = {0};
- // Signals from cluster
- Float_t clusterSignal[kNclus] = {0};
- // Cluster pad info
- Float_t clusterPads[kNclus] = {0};
- // Cluster digit info
- Int_t clusterDigit[kNclus] = {0};
+ AliTRDpadPlane *padPlane = commonParam->GetPadPlane(iplan,icham);
+
+ // Get the digits
+ digitsIn = fDigitsManager->GetDigits(idet);
+ digitsIn->Expand();
+ AliTRDdataArrayF *digitsOut = new AliTRDdataArrayF(digitsIn->GetNrow(), digitsIn->GetNcol(), digitsIn->GetNtime());
+
+ Transform(digitsIn, digitsOut, idet, nRowMax, nColMax, nTimeTotal, ADCthreshold);
+
+ track0 = fDigitsManager->GetDictionary(idet,0);
+ track0->Expand();
+ track1 = fDigitsManager->GetDictionary(idet,1);
+ track1->Expand();
+ track2 = fDigitsManager->GetDictionary(idet,2);
+ track2->Expand();
+
+ // 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++) {
+
+ 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));
+
+// // Lonok for the maximum
+// if (signalM >= maxThresh) {
+// if (((signalL >= sigThresh) &&
+// (signalL < signalM)) ||
+// ((signalR >= sigThresh) &&
+// (signalR < signalM))) {
+// // Maximum found, mark the position by a negative signal
+// digitsOut->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
+ digitsOut->SetDataUnchecked(row,col-1,time,-signalM);
+ }
+ }
+ }
+ }
+ }
+
+ // Now check the maxima and calculate the cluster position
+ for ( row = 0; row < nRowMax ; row++) {
+ for (time = 0; time < nTimeTotal; time++) {
+ for ( col = 1; col < nColMax-1; col++) {
+
+ // Maximum found ?
+ if (digitsOut->GetDataUnchecked(row,col,time) < 0) {
Int_t iPad;
for (iPad = 0; iPad < kNclus; iPad++) {
- clusterSignal[iPad] = digitMatrix->GetSignal(row,col-1+iPad,time);
- clusterDigit[iPad] = digitMatrix->GetTrack(row,col-1+iPad,time,0);
+ Int_t iPadCol = col - 1 + iPad;
+ clusterSignal[iPad] = TMath::Abs(digitsOut->GetDataUnchecked(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;
}
- // neighbouring maximum on right side?
- if (col < nColMax - 2) {
- if (maximaMatrix->GetSignal(row,col + 2,time) > 0) {
-
- for (iPad = 0; iPad < 5; iPad++) {
- padSignal[iPad] = digitMatrix->GetSignal(row,col-1+iPad,time);
- }
-
- // unfold:
- ratio = Unfold(kEpsilon, padSignal);
-
- // set signal on overlapping pad to ratio
- clusterSignal[2] *= ratio;
-
- }
- }
-
- // Calculate the position of the cluster
- switch (clusteringMethod) {
- case 1:
- // method 1: simply center of mass
- clusterPads[0] = row + 0.5;
- clusterPads[1] = col - 0.5 + (clusterSignal[2] - clusterSignal[0]) /
- (clusterSignal[0] + clusterSignal[1] + clusterSignal[2]);
- clusterPads[2] = time + 0.5;
-
- nClusters++;
- break;
+ // Count the number of pads in the cluster
+ Int_t nPadCount = 0;
+ Int_t ii = 0;
+ while (TMath::Abs(digitsOut->GetDataUnchecked(row,col-ii ,time))
+ >= sigThresh) {
+ nPadCount++;
+ ii++;
+ if (col-ii < 0) break;
+ }
+ ii = 0;
+ while (TMath::Abs(digitsOut->GetDataUnchecked(row,col+ii+1,time))
+ >= sigThresh) {
+ nPadCount++;
+ ii++;
+ if (col+ii+1 >= nColMax) break;
+ }
+
+ nClusters++;
+ switch (nPadCount) {
case 2:
- // method 2: integral gauss fit on 3 pads
- TH1F *hPadCharges = new TH1F("hPadCharges", "Charges on center 3 pads"
- , 5, -1.5, 3.5);
- for (Int_t iCol = -1; iCol <= 3; iCol++) {
- if (clusterSignal[iCol] < 1) clusterSignal[iCol] = 1;
- hPadCharges->Fill(iCol, clusterSignal[iCol]);
- }
- hPadCharges->Fit("gaus", "IQ", "SAME", -0.5, 2.5);
- TF1 *fPadChargeFit = hPadCharges->GetFunction("gaus");
- Double_t colMean = fPadChargeFit->GetParameter(1);
-
- clusterPads[0] = row + 0.5;
- clusterPads[1] = col - 1.5 + colMean;
- clusterPads[2] = time + 0.5;
-
- delete hPadCharges;
-
- nClusters++;
+ iType = 0;
+ nClusters2pad++;
break;
+ case 3:
+ iType = 1;
+ nClusters3pad++;
+ break;
+ case 4:
+ iType = 2;
+ nClusters4pad++;
+ break;
+ case 5:
+ iType = 3;
+ nClusters5pad++;
+ break;
+ default:
+ iType = 4;
+ nClustersLarge++;
+ break;
+ };
+
+ // Look for 5 pad cluster with minimum in the middle
+ Bool_t fivePadCluster = kFALSE;
+ if (col < nColMax-3) {
+ if (digitsOut->GetDataUnchecked(row,col+2,time) < 0) {
+ fivePadCluster = kTRUE;
+ }
+ if ((fivePadCluster) && (col < nColMax-5)) {
+ if (digitsOut->GetDataUnchecked(row,col+4,time) >= sigThresh) {
+ fivePadCluster = kFALSE;
+ }
+ }
+ if ((fivePadCluster) && (col > 1)) {
+ if (digitsOut->GetDataUnchecked(row,col-2,time) >= sigThresh) {
+ fivePadCluster = kFALSE;
+ }
+ }
+ }
+
+ // 5 pad cluster
+ // Modify the signal of the overlapping pad for the left part
+ // of the cluster which remains from a previous unfolding
+ if (iUnfold) {
+ clusterSignal[0] *= ratioLeft;
+ iType = 5;
+ iUnfold = 0;
+ }
+
+ // Unfold the 5 pad cluster
+ if (fivePadCluster) {
+ for (iPad = 0; iPad < kNsig; iPad++) {
+ 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
+ ratioRight = Unfold(kEpsilon,iplan,padSignal);
+ ratioLeft = 1.0 - ratioRight;
+ clusterSignal[2] *= ratioRight;
+ iType = 5;
+ iUnfold = 1;
}
- Float_t clusterCharge = clusterSignal[0]
- + clusterSignal[1]
- + clusterSignal[2];
+ Double_t clusterCharge = clusterSignal[0]
+ + clusterSignal[1]
+ + clusterSignal[2];
+
+ // The position of the cluster
+ clusterPads[0] = row + 0.5;
+ // Take the shift of the additional time bins into account
+ clusterPads[2] = time + 0.5;
+
+ 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]);
+ }
+ 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(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 q0 = clusterSignal[0];
+ Double_t q1 = clusterSignal[1];
+ Double_t q2 = clusterSignal[2];
+ Double_t clusterSigmaY2 = (q1*(q0+q2)+4*q0*q2) /
+ (clusterCharge*clusterCharge);
+
+
+
+ // Calculate the position and the error
+
+ // 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], idet, col, row);
+ Double_t clusterSig[2];
+ clusterSig[0] = (clusterSigmaY2 + 1./12.) * colSize*colSize;
+ clusterSig[1] = rowSize * rowSize / 12.;
+
+
// Add the cluster to the output array
- trd->AddRecPoint(clusterPads,clusterDigit,idet,clusterCharge);
-
+ AliTRDcluster * cluster = AddCluster(clusterPos
+ ,clusterTimeBin
+ ,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::Nint(TMath::Abs(digitsOut->GetDataUnchecked(row,jPad,time)));
+ }
+ cluster->SetSignals(signals);
}
- } // time
- } // col
- } // row
-
- printf("AliTRDclusterizerV1::MakeCluster -- ");
- printf("Number of clusters found: %d\n",nClusters);
-
- delete digitMatrix;
- delete maximaMatrix;
-
- } // isect
- } // iplan
- } // icham
-
- printf("AliTRDclusterizerV1::MakeCluster -- ");
- printf("Total number of points found: %d\n"
- ,trd->RecPoints()->GetEntries());
-
- // Get the pointer to the cluster branch
- TTree *clusterTree = gAlice->TreeR();
+ }
+ }
+ }
+
+ delete digitsOut;
+
+ // Compress the arrays
+ track0->Compress(1,0);
+ track1->Compress(1,0);
+ track2->Compress(1,0);
+
+ // Write the cluster and reset the array
+ WriteClusters(idet);
+ ResetRecPoints();
+ }
+ }
+ }
+
+ if (fVerbose > 0) {
+ printf("<AliTRDclusterizerV1::MakeCluster> ");
+ printf("Done.\n");
+ }
- // Fill the cluster-branch
- printf("AliTRDclusterizerV1::MakeCluster -- ");
- printf("Fill the cluster tree.\n");
- clusterTree->Fill();
- printf("AliTRDclusterizerV1::MakeCluster -- ");
- printf("Done.\n");
+ //delete digitsIn;
return kTRUE;
}
//_____________________________________________________________________________
-Float_t AliTRDclusterizerV1::Unfold(Float_t eps, Float_t* padSignal)
+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;
+}
+
+//_____________________________________________________________________________
+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.
//
- Int_t itStep = 0; // count iteration steps
+ AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
+ if (!calibration)
+ {
+ printf("<AliTRDclusterizerMI::Unfold> ");
+ printf("ERROR getting instance of AliTRDcalibDB");
+ return kFALSE;
+ }
+
+ Int_t irc = 0;
+ Int_t itStep = 0; // Count iteration steps
- Float_t ratio = 0.5; // start value for ratio
- Float_t prevRatio = 0; // store previous ratio
+ Double_t ratio = 0.5; // Start value for ratio
+ Double_t prevRatio = 0; // Store previous ratio
- Float_t newLeftSignal[3] = {0}; // array to store left cluster signal
- Float_t newRightSignal[3] = {0}; // array to store right cluster signal
+ 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};
- // start iteration:
+ // Start the iteration
while ((TMath::Abs(prevRatio - ratio) > eps) && (itStep < 10)) {
itStep++;
prevRatio = ratio;
- // cluster position according to charge ratio
- Float_t maxLeft = (ratio*padSignal[2] - padSignal[0]) /
- (padSignal[0] + padSignal[1] + ratio*padSignal[2]);
- Float_t maxRight = (padSignal[4] - (1-ratio)*padSignal[2]) /
- ((1-ratio)*padSignal[2] + padSignal[3] + padSignal[4]);
-
- // set cluster charge ratio
- Float_t ampLeft = padSignal[1];
- Float_t ampRight = padSignal[3];
+ // Cluster position according to charge ratio
+ 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]);
- // apply pad response to parameters
- newLeftSignal[0] = ampLeft*PadResponse(-1 - maxLeft);
- newLeftSignal[1] = ampLeft*PadResponse( 0 - maxLeft);
- newLeftSignal[2] = ampLeft*PadResponse( 1 - maxLeft);
+ // Set cluster charge ratio
+ irc = calibration->PadResponse(1.0,maxLeft ,plane,newSignal);
+ Double_t ampLeft = padSignal[1] / newSignal[1];
+ irc = calibration->PadResponse(1.0,maxRight,plane,newSignal);
+ Double_t ampRight = padSignal[3] / newSignal[1];
- newRightSignal[0] = ampRight*PadResponse(-1 - maxRight);
- newRightSignal[1] = ampRight*PadResponse( 0 - maxRight);
- newRightSignal[2] = ampRight*PadResponse( 1 - maxRight);
+ // Apply pad response to parameters
+ irc = calibration->PadResponse(ampLeft ,maxLeft ,plane,newLeftSignal );
+ irc = calibration->PadResponse(ampRight,maxRight,plane,newRightSignal);
- // calculate new overlapping ratio
- ratio = newLeftSignal[2]/(newLeftSignal[2] + newRightSignal[0]);
+ // Calculate new overlapping ratio
+ ratio = TMath::Min((Double_t)1.0,newLeftSignal[2] /
+ (newLeftSignal[2] + newRightSignal[0]));
}
}
//_____________________________________________________________________________
-Float_t AliTRDclusterizerV1::PadResponse(Float_t x)
+void AliTRDclusterizerV1::Transform(AliTRDdataArrayI* digitsIn,
+ AliTRDdataArrayF* digitsOut,
+ Int_t idet, Int_t nRowMax,
+ Int_t nColMax, Int_t nTimeTotal,
+ Float_t ADCthreshold)
{
+
//
- // The pad response for the chevron pads.
- // We use a simple Gaussian approximation which should be good
- // enough for our purpose.
+ // Apply gain factor
+ // Apply tail cancellation: Transform digitsIn to digitsOut
//
- // The parameters for the response function
- const Float_t kA = 0.8872;
- const Float_t kB = -0.00573;
- const Float_t kC = 0.454;
- const Float_t kC2 = kC*kC;
- Float_t pr = kA * (kB + TMath::Exp(-x*x / (2. * kC2)));
+ AliTRDRecParam* recParam = AliTRDRecParam::Instance();
+ if (!recParam)
+ {
+ printf("<AliTRDclusterizerV1::Transform> ");
+ printf("ERROR getting instance of AliTRDRecParam");
+ return;
+ }
+ AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
+
+ Double_t *inADC = new Double_t[nTimeTotal]; // adc data before tail cancellation
+ Double_t *outADC = new Double_t[nTimeTotal]; // adc data after tail cancellation
- return (pr);
+ if (fVerbose > 0) {
+ printf("<AliTRDclusterizerV1::Transform> ");
+ printf("Tail cancellation (nExp = %d) for detector %d.\n",
+ recParam->GetTCnexp(),idet);
+ }
+
+ for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) {
+ for (Int_t iCol = 0; iCol < nColMax; iCol++ ) {
+ for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
+ //
+ // add gain
+ //
+ Double_t gain = calibration->GetGainFactor(idet, iCol, iRow);
+ if (gain==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 (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
+ // Store the amplitude of the digit if above threshold
+ if (outADC[iTime] > ADCthreshold) {
+ if (fVerbose > 1)
+ {
+ printf(" iRow = %d, iCol = %d, iTime = %d, adc = %f\n"
+ ,iRow,iCol,iTime,outADC[iTime]);
+ }
+ 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];
+
+ // initialize (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 = 0.100;
+
+ rates[0] = TMath::Exp(-Dt/(R1));
+ rates[1] = TMath::Exp(-Dt/(R2));
+
+ Int_t i, k;
+ Double_t reminder[2];
+ Double_t correction, 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