* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
//_________________________________________________________________________
-// A brief description of the class
-//*-- Author : Yves Schutz SUBATECH
+// Implementation version 1 of the clusterization algorithm
+//
+//*-- Author: Yves Schutz (SUBATECH)
//////////////////////////////////////////////////////////////////////////////
// --- ROOT system ---
// --- Standard library ---
-#include <iostream>
+#include <iostream.h>
// --- AliRoot header files ---
//____________________________________________________________________________
AliPHOSClusterizerv1::AliPHOSClusterizerv1()
{
+ // default ctor (to be used)
+
fA = 0.;
fB = 0.01 ;
fNumberOfEmcClusters = 0 ;
//____________________________________________________________________________
Int_t AliPHOSClusterizerv1::AreNeighbours(AliPHOSDigit * d1, AliPHOSDigit * d2)
{
- // neigbours are defined as digits having at least common vertex
- // The order of A and B in AreNeighbours(A,B) is important: first (A) should be digit
- // in cluster, which compared with digits not clusterized yet
+ // Gives the neighbourness of two digits = 0 are not neighbour but continue searching
+ // = 1 are neighbour
+ // = 2 are not neighbour but do not continue searching
+ // neighbours are defined as digits having at least common vertex
+ // The order of d1 and d2 is important: first (d1) should be a digit already in a cluster
+ // which is compared to a digit (d2) not yet in a cluster
+
Int_t rv = 0 ;
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
geom->AbsToRelNumbering(d2->GetId(), relid2) ;
if ( (relid1[0] == relid2[0]) && (relid1[1]==relid2[1]) ) { // inside the same PHOS module and the same PPSD Module
- Int_t RowDiff = TMath::Abs( relid1[2] - relid2[2] ) ;
- Int_t ColDiff = TMath::Abs( relid1[3] - relid2[3] ) ;
+ Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ;
+ Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ;
- if (( ColDiff<=1 ) && ( RowDiff <= 1 )){
+ if (( coldiff <= 1 ) && ( rowdiff <= 1 )){
rv = 1 ;
}
else {
//____________________________________________________________________________
void AliPHOSClusterizerv1::FillandSort(const DigitsList * dl, TObjArray * tl)
{
- // copies the digits with energy above thershold and sorts the list
+ // Copies the digits with energy above thershold and sorts the list
// according to increasing Id number
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
TIter next(dl) ;
AliPHOSDigit * digit ;
+
+
+
while ( (digit = (AliPHOSDigit *)next()) ) {
-
+
+// cout << " clusterizerv1 " << endl ;
+// int nprim = digit->GetNprimary() ;
+// int * aprim = digit->GetPrimary() ;
+// for ( int ii = 0 ; ii < nprim ; ii++)
+// cout << ii << " prim = " << aprim[ii] << endl ;
+
Int_t id = digit->GetId() ;
Float_t ene = Calibrate(digit->GetAmp()) ;
geom->AbsToRelNumbering(id, relid) ;
-
if(relid[1]==0){ // EMC
- if ( ene > fEmcEnergyThreshold )
+ if ( ene > fEmcEnergyThreshold )
tl->Add(digit) ;
}
else { //Ppsd
if ( ene > fPpsdEnergyThreshold )
- tl->Add(digit) ;
+ tl->Add(digit) ;
}
}
//____________________________________________________________________________
void AliPHOSClusterizerv1:: GetNumberOfClustersFound(Int_t * numb)
{
- numb[0] = fNumberOfEmcClusters ;
- numb[1] = fNumberOfPpsdClusters ;
+ // Fills numb with the number of EMC (numb[0]) clusters found
+ // PPSD (numb[1]) clusters found
+
+ numb[0] = fNumberOfEmcClusters ;
+ numb[1] = fNumberOfPpsdClusters ;
}
//____________________________________________________________________________
Bool_t AliPHOSClusterizerv1::IsInEmc(AliPHOSDigit * digit)
{
+ // Tells if (true) or not (false) the digit is in a PHOS-EMC module
+
Bool_t rv = kFALSE ;
AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ;
}
//____________________________________________________________________________
-void AliPHOSClusterizerv1::MakeClusters(const DigitsList * dl, RecPointsList * emcl, RecPointsList * ppsdl)
+void AliPHOSClusterizerv1::MakeClusters(const DigitsList * dl,
+ AliPHOSRecPoint::RecPointsList * emcl,
+ AliPHOSRecPoint::RecPointsList * ppsdl)
{
+ // Steering method to construct the clusters stored in a list of Reconstructed Points
+ // A cluster is defined as a list of neighbour digits
+
// Fill and sort the working digits list
- TObjArray TempoDigitsList( dl->GetEntries() ) ;
- FillandSort(dl, &TempoDigitsList) ;
+ TObjArray tempodigitslist( dl->GetEntries() ) ;
+ FillandSort(dl, &tempodigitslist) ;
// Clusterization starts
- TIter nextdigit(&TempoDigitsList) ;
+ TIter nextdigit(&tempodigitslist) ;
AliPHOSDigit * digit ;
- Bool_t NotRemoved = kTRUE ;
- cout << "Cluster1" << endl;
+ Bool_t notremoved = kTRUE ;
+
while ( (digit = (AliPHOSDigit *)nextdigit()) ) { // scan over the list of digits
AliPHOSRecPoint * clu ;
- int * ClusterDigitsList[dl->GetEntries()] ;
+ AliPHOSDigit ** clusterdigitslist = new AliPHOSDigit*[dl->GetEntries()] ;
Int_t index ;
if (( ( IsInEmc(digit) ) && ( Calibrate(digit->GetAmp() ) > fEmcClusteringThreshold ) ) ||
( ( !IsInEmc(digit) ) && ( Calibrate(digit->GetAmp() ) > fPpsdClusteringThreshold ) ) ) {
Int_t iDigitInCluster = 0 ;
- if ( IsInEmc(digit) ) {
- emcl->Print("");
- cout << "Cluster2 EMC" << endl;
- new ((*emcl)[fNumberOfEmcClusters]) AliPHOSEmcRecPoint(fW0, fLocMaxCut) ; // start a new EMC RecPoint
+ if ( IsInEmc(digit) ) {
+ // start a new EMC RecPoint
+ // new ((*emcl)[fNumberOfEmcClusters]) AliPHOSEmcRecPoint(fW0, fLocMaxCut) ; if TClonesArray
+ (*emcl)[fNumberOfEmcClusters] = new AliPHOSEmcRecPoint(fW0, fLocMaxCut) ;
+
clu = (AliPHOSEmcRecPoint *) (*emcl)[fNumberOfEmcClusters] ;
fNumberOfEmcClusters++ ;
clu->AddDigit(*digit, Calibrate(digit->GetAmp())) ;
- ClusterDigitsList[iDigitInCluster] = (int* ) digit ;
+ clusterdigitslist[iDigitInCluster] = digit ;
iDigitInCluster++ ;
- TempoDigitsList.Remove(digit) ;
+ tempodigitslist.Remove(digit) ;
+
+
}
else {
- cout << "Cluster2 PPSD" << endl;
- new ((*ppsdl)[fNumberOfPpsdClusters]) AliPHOSPpsdRecPoint() ; // start a new PPSD cluster
+
+ // start a new PPSD cluster
+ // new ((*ppsdl)[fNumberOfPpsdClusters]) AliPHOSPpsdRecPoint() ; if TClonesArray
+ (*ppsdl)[fNumberOfPpsdClusters] = new AliPHOSPpsdRecPoint() ;
+
clu = (AliPHOSPpsdRecPoint *) ppsdl->At(fNumberOfPpsdClusters) ;
fNumberOfPpsdClusters++ ;
- clu->AddDigit(*digit, 0.) ;
- ClusterDigitsList[iDigitInCluster] = (int* ) digit ;
+ clu->AddDigit(*digit, Calibrate(digit->GetAmp()) ) ;
+ clusterdigitslist[iDigitInCluster] = digit ;
iDigitInCluster++ ;
- TempoDigitsList.Remove(digit) ;
+ tempodigitslist.Remove(digit) ;
nextdigit.Reset() ;
// Here we remove resting EMC digits, which cannot make cluster
- if( NotRemoved ) {
+ if( notremoved ) {
while( ( digit = (AliPHOSDigit *)nextdigit() ) ) {
if( IsInEmc(digit) )
- TempoDigitsList.Remove(digit) ;
+ tempodigitslist.Remove(digit) ;
else
break ;
} // while digit
- } // if NotRemoved
+ } // if notremoved
} // else
AliPHOSDigit * digitN ;
index = 0 ;
while (index < iDigitInCluster){ // scan over digits already in cluster
- digit = (AliPHOSDigit *) ClusterDigitsList[index] ;
+ digit = clusterdigitslist[index] ;
index++ ;
while ( (digitN = (AliPHOSDigit *)nextdigit()) ) { // scan over the reduced list of digits
Int_t ineb = AreNeighbours(digit, digitN); // call (digit,digitN) in THAT oder !!!!!
case 0 : // not a neighbour
break ;
case 1 : // are neighbours
- clu->AddDigit( *digitN, Calibrate( digitN->GetAmp() ) ) ;
- ClusterDigitsList[iDigitInCluster] =(int*) digitN ;
+ clu->AddDigit(*digitN, Calibrate( digitN->GetAmp() ) ) ;
+ clusterdigitslist[iDigitInCluster] = digitN ;
iDigitInCluster++ ;
- TempoDigitsList.Remove(digitN) ;
+ tempodigitslist.Remove(digitN) ;
break ;
case 2 : // too far from each other
goto endofloop;
} //below energy theshold
+ delete[] clusterdigitslist ;
+
} // while digit
- TempoDigitsList.Clear() ;
+ tempodigitslist.Clear() ;
+
}
//____________________________________________________________________________
void AliPHOSClusterizerv1::PrintParameters()
{
+ // Print the energy thresholds
+
cout << "PHOS Clusterizer version 1 :" << endl
<< " EMC Clustering threshold = " << fEmcClusteringThreshold << endl
<< " EMC Energy threshold = " << fEmcEnergyThreshold << endl
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff