Bhubaneswar 751 005 ( phatak@iopb.res.in ) Given the energy deposited
( or ADC value ) in each cell of supermodule ( pmd or cpv ), the code
builds up superclusters and breaks them into clusters. The input is
- in array fEdepCell[kNDIMX][kNDIMY] and cluster information is in a
+ in array edepcell[kNMX] and cluster information is in a
TObjarray. Integer clno gives total number of clusters in the
supermodule.
- fEdepCell and fClusters are the only global ( public ) variables.
+ fClusters is the only global ( public ) variables.
Others are local ( private ) to the code.
At the moment, the data is read for whole detector ( all supermodules
and pmd as well as cpv. This will have to be modify later )
#include <TMath.h>
#include <TNtuple.h>
#include <TObjArray.h>
+#include "TRandom.h"
#include <stdio.h>
#include "AliPMDcludata.h"
#include "AliPMDClustering.h"
#include "AliPMDClusteringV1.h"
#include "AliLog.h"
-#include "TRandom.h"
ClassImp(AliPMDClusteringV1)
const Double_t AliPMDClusteringV1::fgkSqroot3by2=0.8660254; // sqrt(3.)/2.
AliPMDClusteringV1::AliPMDClusteringV1():
- pmdclucont(new TObjArray()),
+ fPMDclucont(new TObjArray()),
fCutoff(0.0)
{
for(Int_t i = 0; i < kNDIMX; i++)
{
fCoord[0][i][j] = i+j/2.;
fCoord[1][i][j] = fgkSqroot3by2*j;
- fEdepCell[i][j] = 0;
}
}
}
// ------------------------------------------------------------------------ //
+AliPMDClusteringV1::AliPMDClusteringV1(const AliPMDClusteringV1& pmdclv1):
+ AliPMDClustering(pmdclv1),
+ fPMDclucont(0),
+ fCutoff(0)
+{
+ // copy constructor
+ AliError("Copy constructor not allowed ");
+
+}
+// ------------------------------------------------------------------------ //
+AliPMDClusteringV1 &AliPMDClusteringV1::operator=(const AliPMDClusteringV1& /*pmdclv1*/)
+{
+ // copy constructor
+ AliError("Assignment operator not allowed ");
+ return *this;
+}
+// ------------------------------------------------------------------------ //
AliPMDClusteringV1::~AliPMDClusteringV1()
{
- delete pmdclucont;
+ delete fPMDclucont;
}
// ------------------------------------------------------------------------ //
void AliPMDClusteringV1::DoClust(Int_t idet, Int_t ismn,
{
// main function to call other necessary functions to do clustering
//
- AliPMDcluster *pmdcl = 0;
- /*
- int id and jd defined to read the input data.
- It is assumed that for data we have 0 <= id <= 48
- and 0 <= jd <=96
- */
- Int_t i, i1, i2, j, nmx1, incr, id, jd;
- Int_t celldataX[15], celldataY[15];
- Float_t clusdata[6];
+ AliPMDcluster *pmdcl = 0;
- Double_t cutoff, ave;
+ Int_t i, j, nmx1, incr, id, jd;
+ Int_t celldataX[15], celldataY[15];
+ Float_t clusdata[6];
+ Double_t cutoff, ave;
+ Double_t edepcell[kNMX];
const float ktwobysqrt3 = 1.1547; // 2./sqrt(3.)
ndimYr = 96;
}
+ Int_t kk = 0;
for (Int_t i = 0; i < kNDIMX; i++)
{
for (Int_t j = 0; j < kNDIMY; j++)
{
- fEdepCell[i][j] = 0;
fCellTrNo[i][j] = -1;
+ edepcell[kk] = 0.;
+ kk++;
}
}
j = jd;
i = id+(ndimYr/2-1)-(jd/2);
+ Int_t ij = i + j*kNDIMX;
+
if (ismn < 12)
{
- fEdepCell[i][j] = celladc[jd][id];
- fCellTrNo[i][j] = jd*10000+id; /* for association */
+ edepcell[ij] = celladc[jd][id];
+ fCellTrNo[i][j] = jd*10000+id; // for association
}
else if (ismn >= 12 && ismn <= 23)
{
- fEdepCell[i][j] = celladc[id][jd];
- fCellTrNo[i][j] = id*10000+jd; /* for association */
+ edepcell[ij] = celladc[id][jd];
+ fCellTrNo[i][j] = id*10000+jd; // for association
}
}
}
- Order(); // order the data
- cutoff = fCutoff; // cutoff used to discard cells having ener. dep.
- ave = 0.;
+
+ Int_t iord1[kNMX];
+ TMath::Sort(kNMX,edepcell,iord1);// order the data
+ cutoff = fCutoff; // cutoff to discard cells
+ ave = 0.;
nmx1 = -1;
-
- for(j = 0;j < kNMX; j++)
+ for(i = 0;i < kNMX; i++)
{
- i1 = fIord[0][j];
- i2 = fIord[1][j];
- if(fEdepCell[i1][i2] > 0.)
+ if(edepcell[i] > 0.)
{
- ave += fEdepCell[i1][i2];
+ ave += edepcell[i];
}
- if(fEdepCell[i1][i2] > cutoff )
+ if(edepcell[i] > cutoff )
{
nmx1++;
}
AliDebug(1,Form("Number of cells in a SuperM = %d and Average = %f",
kNMX,ave));
-
- incr = CrClust(ave, cutoff, nmx1);
- RefClust(incr);
- Int_t nentries1 = pmdclucont->GetEntries();
+
+ incr = CrClust(ave, cutoff, nmx1,iord1, edepcell );
+
+ RefClust(incr,edepcell);
+ Int_t nentries1 = fPMDclucont->GetEntries();
AliDebug(1,Form("Detector Plane = %d Serial Module No = %d Number of clusters = %d",idet, ismn, nentries1));
AliDebug(1,Form("Total number of clusters/module = %d",nentries1));
+
for (Int_t ient1 = 0; ient1 < nentries1; ient1++)
{
AliPMDcludata *pmdcludata =
- (AliPMDcludata*)pmdclucont->UncheckedAt(ient1);
+ (AliPMDcludata*)fPMDclucont->UncheckedAt(ient1);
Float_t cluXC = pmdcludata->GetClusX();
Float_t cluYC = pmdcludata->GetClusY();
Float_t cluADC = pmdcludata->GetClusADC();
//
// Cells associated with a cluster
//
+
for (Int_t ihit = 0; ihit < 15; ihit++)
{
-
if (ismn < 12)
{
- celldataX[ihit] = fClTr[ihit][i1]%10000;
- celldataY[ihit] = fClTr[ihit][i1]/10000;
+ celldataX[ihit] = pmdcludata->GetCellXY(ihit)%10000;
+ celldataY[ihit] = pmdcludata->GetCellXY(ihit)/10000;
}
else if (ismn >= 12 && ismn <= 23)
{
- celldataX[ihit] = fClTr[ihit][i1]/10000;
- celldataY[ihit] = fClTr[ihit][i1]%10000;
+ celldataX[ihit] = pmdcludata->GetCellXY(ihit)/10000;
+ celldataY[ihit] = pmdcludata->GetCellXY(ihit)%10000;
}
}
pmdcl = new AliPMDcluster(idet, ismn, clusdata, celldataX, celldataY);
pmdcont->Add(pmdcl);
}
- pmdclucont->Clear();
-
-}
-// ------------------------------------------------------------------------ //
-void AliPMDClusteringV1::Order()
-{
- // Sorting algorithm
- // sorts the ADC values from higher to lower
- //
- Int_t i, j, i1, i2;
- Int_t iord1[kNMX];
- Double_t dd[kNMX];
-
- for(i1=0; i1 < kNDIMX; i1++)
- {
- for(i2=0; i2 < kNDIMY; i2++)
- {
- i = i1 + i2*kNDIMX;
- iord1[i] = i;
- dd[i] = fEdepCell[i1][i2];
- }
- }
+ fPMDclucont->Clear();
- TMath::Sort(kNMX,dd,iord1); //PH Using much better algorithm...
- for(i=0; i<kNMX; i++)
- {
- j = iord1[i];
- i2 = j/kNDIMX;
- i1 = j-i2*kNDIMX;
- fIord[0][i]=i1;
- fIord[1][i]=i2;
- }
}
// ------------------------------------------------------------------------ //
-Int_t AliPMDClusteringV1::CrClust(Double_t ave, Double_t cutoff, Int_t nmx1)
+Int_t AliPMDClusteringV1::CrClust(Double_t ave, Double_t cutoff, Int_t nmx1,
+ Int_t iord1[], Double_t edepcell[])
{
// Does crude clustering
// Finds out only the big patch by just searching the
Int_t jd1,jd2, icell, cellcount;
static Int_t neibx[6]={1,0,-1,-1,0,1}, neiby[6]={0,1,1,0,-1,-1};
- // neibx and neiby define ( incremental ) (i,j) for the neighbours of a
- // cell. There are six neighbours.
- // cellcount --- total number of cells having nonzero ener dep
- // numcell --- number of cells in a given supercluster
-
AliDebug(1,Form("kNMX = %d nmx1 = %d kNDIMX = %d kNDIMY = %d ave = %f cutoff = %f",kNMX,nmx1,kNDIMX,kNDIMY,ave,cutoff));
for (j = 0; j < kNDIMX; j++)
for(i=0; i < kNMX; i++)
{
fInfcl[0][i] = -1;
- id1 = fIord[0][i];
- id2 = fIord[1][i];
- if(fEdepCell[id1][id2] <= cutoff)
+
+ j = iord1[i];
+ id2 = j/kNDIMX;
+ id1 = j-id2*kNDIMX;
+
+ if(edepcell[j] <= cutoff)
{
fInfocl[0][id1][id2] = -1;
}
}
+
// ---------------------------------------------------------------
// crude clustering begins. Start with cell having largest adc
// count and loop over the cells in descending order of adc count
// ---------------------------------------------------------------
+
icl = -1;
cellcount = -1;
for(icell = 0; icell <= nmx1; icell++)
{
- id1 = fIord[0][icell];
- id2 = fIord[1][icell];
+ j = iord1[icell];
+ id2 = j/kNDIMX;
+ id1 = j-id2*kNDIMX;
+
if(fInfocl[0][id1][id2] == 0 )
{
icl++;
return cellcount;
}
// ------------------------------------------------------------------------ //
-void AliPMDClusteringV1::RefClust(Int_t incr)
+void AliPMDClusteringV1::RefClust(Int_t incr, Double_t edepcell[])
{
// Does the refining of clusters
// Takes the big patch and does gaussian fitting and
// finds out the more refined clusters
//
-
+
+ AliPMDcludata *pmdcludata = 0;
+
const Int_t kdim = 4500;
- Int_t i, j, k, i1, i2, id, icl, itest,ihld, ig, nsupcl,clno;
- Double_t x1, y1, z1, x2, y2, z2, dist,rr,sum;
-
- Int_t t[kdim],cellCount[kdim];
- Int_t ncl[kdim], iord[kdim], lev1[20], lev2[20];
+
+ Int_t i, j, k, i1, i2, id, icl, itest,ihld, ig, nsupcl,clno;
+ Int_t lev1[20], lev2[20];
+ Int_t ncl[kdim], iord[kdim], t[kdim];
+ Int_t clxy[15];
+
+ Int_t *cellCount;
+ Int_t **cellXY;
+
+ Float_t clusdata[6];
+ Double_t x1, y1, z1, x2, y2, z2, dist,rr,sum;
Double_t x[kdim], y[kdim], z[kdim];
Double_t xc[kdim], yc[kdim], zc[kdim], cells[kdim], rc[kdim];
- Float_t clusdata[6];
- for(Int_t kk = 0; kk < 6; kk++)
- {
- clusdata[kk] = 0.;
- }
-
- //asso
+
+ // Initialisation
for(i = 0; i<kdim; i++)
{
t[i] = -1;
- cellCount[i] = 0;
+ ncl[i] = -1;
+ if (i < 6) clusdata[i] = 0.;
+ if (i < 15) clxy[i] = 0;
}
+
// clno counts the final clusters
// nsupcl = # of superclusters; ncl[i]= # of cells in supercluster i
// x, y and z store (x,y) coordinates of and energy deposited in a cell
clno = -1;
nsupcl = -1;
- for(i = 0; i < kdim; i++)
- {
- ncl[i] = -1;
- }
+
for(i = 0; i <= incr; i++)
{
if(fInfcl[0][i] != nsupcl)
incr+1,nsupcl+1));
id = -1;
icl = -1;
+
for(i = 0; i <= nsupcl; i++)
{
if(ncl[i] == 0)
i1 = fInfcl[1][id];
i2 = fInfcl[2][id];
+ Int_t i12 = i1 + i2*kNDIMX;
+
clusdata[0] = fCoord[0][i1][i2];
clusdata[1] = fCoord[1][i1][i2];
- clusdata[2] = fEdepCell[i1][i2];
+ clusdata[2] = edepcell[i12];
clusdata[3] = 1.;
clusdata[4] = 0.5;
clusdata[5] = 0.0;
- pmdcludata = new AliPMDcludata(clusdata);
- pmdclucont->Add(pmdcludata);
-
- //association
-
- fClTr[0][clno] = fCellTrNo[i1][i2];
- for(Int_t icltr = 1; icltr < 14; icltr++)
+
+ clxy[0] = fCellTrNo[i1][i2]; //association
+ for(Int_t icltr = 1; icltr < 15; icltr++)
{
- fClTr[icltr][clno] = -1;
+ clxy[icltr] = -1;
}
+ pmdcludata = new AliPMDcludata(clusdata,clxy);
+ fPMDclucont->Add(pmdcludata);
}
else if(ncl[i] == 1)
{
clno++;
i1 = fInfcl[1][id];
i2 = fInfcl[2][id];
+ Int_t i12 = i1 + i2*kNDIMX;
+
x1 = fCoord[0][i1][i2];
y1 = fCoord[1][i1][i2];
- z1 = fEdepCell[i1][i2];
-
- //asso
- fClTr[0][clno] = fCellTrNo[i1][i2];
- //
-
- id = id+1;
+ z1 = edepcell[i12];
+ clxy[0] = fCellTrNo[i1][i2]; //asso
+ id++;
i1 = fInfcl[1][id];
i2 = fInfcl[2][id];
+
+ Int_t i22 = i1 + i2*kNDIMX;
x2 = fCoord[0][i1][i2];
y2 = fCoord[1][i1][i2];
- z2 = fEdepCell[i1][i2];
-
- //asso
-
- fClTr[1][clno] = fCellTrNo[i1][i2];
- for(Int_t icltr = 2; icltr < 14; icltr++)
+ z2 = edepcell[i22];
+ clxy[1] = fCellTrNo[i1][i2]; //asso
+ for(Int_t icltr = 2; icltr < 15; icltr++)
{
- fClTr[icltr][clno] = -1;
+ clxy[icltr] = -1;
}
- //
clusdata[0] = (x1*z1+x2*z2)/(z1+z2);
clusdata[1] = (y1*z1+y2*z2)/(z1+z2);
clusdata[3] = 2.;
clusdata[4] = 0.5;
clusdata[5] = 0.0;
- pmdcludata = new AliPMDcludata(clusdata);
- pmdclucont->Add(pmdcludata);
+ pmdcludata = new AliPMDcludata(clusdata,clxy);
+ fPMDclucont->Add(pmdcludata);
}
else
{
- //asso
- for(Int_t icg = 0; icg < kdim; icg++)
- {
- cellCount[icg]=0;
- }
- //
-
id++;
iord[0] = 0;
// super-cluster of more than two cells - broken up into smaller
// cluster center
i1 = fInfcl[1][id];
i2 = fInfcl[2][id];
+ Int_t i12 = i1 + i2*kNDIMX;
+
x[0] = fCoord[0][i1][i2];
y[0] = fCoord[1][i1][i2];
- z[0] = fEdepCell[i1][i2];
-
- //asso
- t[0] = fCellTrNo[i1][i2];
- //
+ z[0] = edepcell[i12];
+
+ t[0] = fCellTrNo[i1][i2]; //asso
iord[0] = 0;
for(j = 1; j <= ncl[i]; j++)
id++;
i1 = fInfcl[1][id];
i2 = fInfcl[2][id];
+ Int_t i12 = i1 + i2*kNDIMX;
+
iord[j] = j;
x[j] = fCoord[0][i1][i2];
y[j] = fCoord[1][i1][i2];
- z[j] = fEdepCell[i1][i2];
- //asso
- t[j] = fCellTrNo[i1][i2];
- //
+ z[j] = edepcell[i12];
+
+ t[j] = fCellTrNo[i1][i2]; //asso
}
-
// arranging cells within supercluster in decreasing order
for(j = 1;j <= ncl[i]; j++)
// guess )
// centers must be separated by cells having smaller ener. dep.
// neighbouring centers should be either strong or well-separated
- ig=0;
+ ig = 0;
xc[ig] = x[iord[0]];
yc[ig] = y[iord[0]];
zc[ig] = z[iord[0]];
x2 = xc[k];
y2 = yc[k];
rr = Distance(x1,y1,x2,y2);
- if( rr >= 1.1 && rr < 1.8 && z[iord[j]] > zc[k]/4.)
- {
- itest++;
- }
- if( rr >= 1.8 && rr < 2.1 && z[iord[j]] > zc[k]/10.)
- {
- itest++;
- }
- if( rr >= 2.1)
- {
- itest++;
- }
+ if(rr >= 1.1 && rr < 1.8 && z[iord[j]] > zc[k]/4.)itest++;
+ if(rr >= 1.8 && rr < 2.1 && z[iord[j]] > zc[k]/10.)itest++;
+ if( rr >= 2.1)itest++;
}
if(itest == ig)
{
zc[ig] = z[iord[j]];
}
}
-
GaussFit(ncl[i], ig, x[0], y[0] ,z[0], xc[0], yc[0], zc[0], rc[0]);
icl += ig+1;
// compute the number of cells belonging to each cluster.
// cell is shared between several clusters ( if they are equidistant
// from it ) in the ratio of cluster energy deposition
+
+ Int_t jj = 15;
+ cellCount = new Int_t [ig+1];
+ cellXY = new Int_t *[jj];
+ for(Int_t ij = 0; ij < 15; ij++) cellXY[ij] = new Int_t [ig+1];
+
for(j = 0; j <= ig; j++)
{
- cells[j]=0.;
+ cellCount[j] = 0;
+ cells[j] = 0.;
}
+
if(ig > 0)
{
for(j = 0; j <= ncl[i]; j++)
if(dist < TMath::Sqrt(3.) )
{
//asso
- fClTr[cellCount[k]][clno+k+1] = t[j];
+ if (cellCount[k] < 15)
+ {
+ cellXY[cellCount[k]][k] = t[j];
+ }
cellCount[k]++;
//
lev1[0]++;
//asso
for( k = 0; k <= ig; k++)
{
- for(Int_t icltr = cellCount[k]; icltr < 14; icltr++)
+ for(Int_t icltr = cellCount[k]; icltr < 15; icltr++)
{
- fClTr[icltr][clno] = -1;
+ cellXY[icltr][k] = -1;
}
}
//
{
clusdata[3] = cells[j];
}
- pmdcludata = new AliPMDcludata(clusdata);
- pmdclucont->Add(pmdcludata);
+
+
+ for (Int_t ii=0; ii < 15; ii++)
+ {
+ clxy[ii] = cellXY[ii][j];
+ }
+ pmdcludata = new AliPMDcludata(clusdata,clxy);
+ fPMDclucont->Add(pmdcludata);
}
+ delete [] cellCount;
+ for(Int_t jj = 0; jj < 15; jj++)delete [] cellXY[jj];
+ delete [] cellXY;
}
}
}
{
// Does gaussian fitting
//
+
const Int_t kdim = 4500;
Int_t i, j, i1, i2, novar, idd, jj;
+ Int_t neib[kdim][50];
+
Double_t sum, dx, dy, str, str1, aint, sum1, rr, dum;
Double_t x1, x2, y1, y2;
Double_t xx[kdim], yy[kdim], zz[kdim], xxc[kdim], yyc[kdim];
Double_t a[kdim], b[kdim], c[kdim], d[kdim], ha[kdim], hb[kdim];
Double_t hc[kdim], hd[kdim], zzc[kdim], rrc[kdim];
- Int_t neib[kdim][50];
TRandom rnd;
str1 = 0.;
rr = 0.3;
novar = 0;
- j = 0;
+ j = 0;
for(i = 0; i <= ncell; i++)
{
x1 = xxc[i];
y1 = yyc[i];
}
+
for(i = 0; i <= ncell; i++)
{
idd = 0;
sum += (aint - zz[i1])*(aint - zz[i1])/str;
}
str1 = 0.;
+
for(i = 0; i <= nclust; i++)
{
a[i] = xxc[i] + 0.6*(rnd.Uniform() - 0.5);
c[i] = c[i]*str/str1;
}
sum1=0.;
+
for(i1 = 0; i1 <= ncell; i1++)
{
aint = 0.;
Bhubaneswar 751 005 ( phatak@iopb.res.in ) Given the energy deposited
( or ADC value ) in each cell of supermodule ( pmd or cpv ), the code
builds up superclusters and breaks them into clusters. The input is
- in array fEdepCell[kNDIMX][kNDIMY] and cluster information is in array
- fClusters[5][5000]. integer fClno gives total number of clusters in the
- supermodule.
-
- fEdepCell, fClno and fClusters are the only global ( public ) variables.
+ in TObjarray and cluster information is in TObjArray.
+ integer clno gives total number of clusters in the supermodule.
+ fClusters is the global ( public ) variables.
Others are local ( private ) to the code.
At the moment, the data is read for whole detector ( all supermodules
and pmd as well as cpv. This will have to be modify later )
#include <Riostream.h>
#include <TMath.h>
#include <TObjArray.h>
-#include <stdio.h>
+#include <TArrayI.h>
+#include "AliPMDcludata.h"
#include "AliPMDcluster.h"
#include "AliPMDClustering.h"
#include "AliPMDClusteringV2.h"
const Double_t AliPMDClusteringV2::fgkSqroot3by2=0.8660254; // sqrt(3.)/2.
AliPMDClusteringV2::AliPMDClusteringV2():
- fClno(0),
+ fPMDclucont(new TObjArray()),
fCutoff(0.0)
{
for(int i = 0; i < kNDIMX; i++)
{
fCoord[0][i][j] = i+j/2.;
fCoord[1][i][j] = fgkSqroot3by2*j;
- fEdepCell[i][j] = 0;
}
}
}
// ------------------------------------------------------------------------ //
+
+
+AliPMDClusteringV2::AliPMDClusteringV2(const AliPMDClusteringV2& pmdclv2):
+ AliPMDClustering(pmdclv2),
+ fPMDclucont(0),
+ fCutoff(0)
+{
+ // copy constructor
+ AliError("Copy constructor not allowed ");
+
+}
+// ------------------------------------------------------------------------ //
+AliPMDClusteringV2 &AliPMDClusteringV2::operator=(const AliPMDClusteringV2& /*pmdclv2*/)
+{
+ // copy constructor
+ AliError("Assignment operator not allowed ");
+ return *this;
+}
+// ------------------------------------------------------------------------ //
AliPMDClusteringV2::~AliPMDClusteringV2()
{
-
+ delete fPMDclucont;
}
// ------------------------------------------------------------------------ //
-void AliPMDClusteringV2::DoClust(Int_t idet, Int_t ismn, Double_t celladc[48][96], TObjArray *pmdcont)
+
+void AliPMDClusteringV2::DoClust(Int_t idet, Int_t ismn,
+ Double_t celladc[48][96], TObjArray *pmdcont)
{
// main function to call other necessary functions to do clustering
//
AliPMDcluster *pmdcl = 0;
- Int_t i, i1, i2, j, nmx1, incr, id, jd;
+ const float ktwobysqrt3 = 1.1547; // 2./sqrt(3.)
+
+ Int_t i, j, nmx1, incr, id, jd;
+ Int_t ndimXr = 0;
+ Int_t ndimYr = 0;
Int_t celldataX[15], celldataY[15];
- Float_t clusdata[6];
+ Float_t clusdata[6];
Double_t cutoff, ave;
+ Double_t edepcell[kNMX];
- const float ktwobysqrt3 = 1.1547; // 2./sqrt(3.)
-
- Int_t ndimXr =0;
- Int_t ndimYr =0;
if (ismn < 12)
{
ndimXr = 48;
ndimYr = 96;
}
-
- for (Int_t i =0; i < kNDIMX; i++)
+
+ for (Int_t i =0; i < kNMX; i++)
{
- for (Int_t j =0; j < kNDIMY; j++)
- {
- fEdepCell[i][j] = 0;
- }
+ edepcell[i] = 0.;
}
-
-
+
for (id = 0; id < ndimXr; id++)
{
for (jd = 0; jd < ndimYr; jd++)
{
- j=jd;
- i=id+(ndimYr/2-1)-(jd/2);
-
+ j = jd;
+ i = id + (ndimYr/2-1) - (jd/2);
+ Int_t ij = i + j*kNDIMX;
if (ismn < 12)
{
- fEdepCell[i][j] = celladc[jd][id];
+ edepcell[ij] = celladc[jd][id];
}
else if (ismn >= 12 && ismn <= 23)
{
- fEdepCell[i][j] = celladc[id][jd];
+ edepcell[ij] = celladc[id][jd];
}
}
}
- Order(); // order the data
+ Int_t iord1[kNMX];
+ TMath::Sort(kNMX,edepcell,iord1);// order the data
cutoff = fCutoff; // cutoff used to discard cells having ener. dep.
- ave=0.;
- nmx1=-1;
+ ave = 0.;
+ nmx1 = -1;
- for(j=0;j<kNMX; j++)
+ for(i = 0;i < kNMX; i++)
{
- i1 = fIord[0][j];
- i2 = fIord[1][j];
- if (fEdepCell[i1][i2] > 0.) {ave = ave + fEdepCell[i1][i2];}
- if (fEdepCell[i1][i2] > cutoff ) nmx1 = nmx1 + 1;
+ if(edepcell[i] > 0.)
+ {
+ ave += edepcell[i];
+ }
+ if(edepcell[i] > cutoff )
+ {
+ nmx1++;
+ }
}
- // nmx1 --- number of cells having ener dep >= cutoff
-
+
AliDebug(1,Form("Number of cells having energy >= %f are %d",cutoff,nmx1));
-
- if (nmx1 == 0) nmx1 = 1;
- ave=ave/nmx1;
-
+
+ if (nmx1 == 0)
+ {
+ nmx1 = 1;
+ }
+ ave = ave/nmx1;
+
AliDebug(1,Form("Number of cells in a SuperM = %d and Average = %f",
kNMX,ave));
-
- incr = CrClust(ave, cutoff, nmx1);
- RefClust(incr);
-
- AliDebug(1,Form("Detector Plane = %d Serial Module No = %d Number of clusters = %d",idet, ismn, fClno));
- for(i1=0; i1<=fClno; i1++)
+ incr = CrClust(ave, cutoff, nmx1,iord1, edepcell);
+ RefClust(incr,edepcell );
+
+ Int_t nentries1 = fPMDclucont->GetEntries();
+ AliDebug(1,Form("Detector Plane = %d Serial Module No = %d Number of clusters = %d",idet, ismn, nentries1));
+ AliDebug(1,Form("Total number of clusters/module = %d",nentries1));
+ for (Int_t ient1 = 0; ient1 < nentries1; ient1++)
{
- Float_t cluXC = (Float_t) fClusters[0][i1];
- Float_t cluYC = (Float_t) fClusters[1][i1];
- Float_t cluADC = (Float_t) fClusters[2][i1];
- Float_t cluCELLS = (Float_t) fClusters[3][i1];
- Float_t sigmaX = (Float_t) fClusters[4][i1];
- Float_t sigmaY = (Float_t) fClusters[5][i1];
+ AliPMDcludata *pmdcludata =
+ (AliPMDcludata*)fPMDclucont->UncheckedAt(ient1);
+ Float_t cluXC = pmdcludata->GetClusX();
+ Float_t cluYC = pmdcludata->GetClusY();
+ Float_t cluADC = pmdcludata->GetClusADC();
+ Float_t cluCELLS = pmdcludata->GetClusCells();
+ Float_t cluSIGX = pmdcludata->GetClusSigmaX();
+ Float_t cluSIGY = pmdcludata->GetClusSigmaY();
+
Float_t cluY0 = ktwobysqrt3*cluYC;
Float_t cluX0 = cluXC - cluY0/2.;
+
//
// Cluster X centroid is back transformed
//
{
clusdata[0] = cluX0 - (24-1) + cluY0/2.;
}
- else if (ismn >= 12 && ismn <= 23)
+ else if (ismn >= 12 && ismn <= 23)
{
clusdata[0] = cluX0 - (48-1) + cluY0/2.;
}
- clusdata[1] = cluY0;
- clusdata[2] = cluADC;
- clusdata[3] = cluCELLS;
- clusdata[4] = sigmaX;
- clusdata[5] = sigmaY;
-
+ clusdata[1] = cluY0;
+ clusdata[2] = cluADC;
+ clusdata[3] = cluCELLS;
+ clusdata[4] = cluSIGX;
+ clusdata[5] = cluSIGY;
//
// Cells associated with a cluster
//
for (Int_t ihit = 0; ihit < 15; ihit++)
{
- celldataX[ihit] = 1; // dummy nos. -- will be changed
- celldataY[ihit] = 1; // dummy nos. -- will be changed
+ Int_t dummyXY = pmdcludata->GetCellXY(ihit);
+
+ Int_t celldumY = dummyXY%10000;
+ Int_t celldumX = dummyXY/10000;
+ Float_t cellY = (Float_t) (ktwobysqrt3*celldumY/10);
+ Float_t cellX = (Float_t) (celldumX/10 - (celldumY/2.)/10);
+
+ //
+ // Cell X centroid is back transformed
+ //
+ if (ismn < 12)
+ {
+ celldataX[ihit] = (Int_t) (cellX - (24-1) + cellY/2.);
+ }
+ else if (ismn >= 12 && ismn <= 23)
+ {
+ celldataX[ihit] = (Int_t) (cellX - (48-1) + cellY/2.);
+ }
+ celldataY[ihit] = (Int_t) cellY;
}
pmdcl = new AliPMDcluster(idet, ismn, clusdata, celldataX, celldataY);
pmdcont->Add(pmdcl);
}
+ fPMDclucont->Clear();
}
// ------------------------------------------------------------------------ //
-void AliPMDClusteringV2::Order()
-{
- // Sorting algorithm
- // sorts the ADC values from higher to lower
- //
- double dd[kNMX];
- // matrix fEdepCell converted into
- // one dimensional array dd. adum a place holder for double
- int i, j, i1, i2, iord1[kNMX];
- // information of
- // ordering is stored in iord1, original array not ordered
- //
- // define arrays dd and iord1
- for(i1=0; i1 < kNDIMX; i1++)
- {
- for(i2=0; i2 < kNDIMY; i2++)
- {
- i = i1 + i2*kNDIMX;
- iord1[i] = i;
- dd[i] = fEdepCell[i1][i2];
- }
- }
- // sort and store sorting information in iord1
-
- TMath::Sort(kNMX,dd,iord1);
-
- // store the sorted information in fIord for later use
- for(i=0; i<kNMX; i++)
- {
- j = iord1[i];
- i2 = j/kNDIMX;
- i1 = j-i2*kNDIMX;
- fIord[0][i]=i1;
- fIord[1][i]=i2;
- }
-}
-// ------------------------------------------------------------------------ //
-Int_t AliPMDClusteringV2::CrClust(Double_t ave, Double_t cutoff, Int_t nmx1)
+Int_t AliPMDClusteringV2::CrClust(Double_t ave, Double_t cutoff, Int_t nmx1,
+ Int_t iord1[], Double_t edepcell[])
{
// Does crude clustering
// Finds out only the big patch by just searching the
// connected cells
//
- int i,j,k,id1,id2,icl, numcell;
- int jd1,jd2, icell, cellcount;
- int clust[2][5000];
- static int neibx[6]={1,0,-1,-1,0,1}, neiby[6]={0,1,1,0,-1,-1};
+ Int_t i,j,k,id1,id2,icl, numcell;
+ Int_t jd1,jd2, icell, cellcount;
+ Int_t clust[2][5000];
+ static Int_t neibx[6] = {1,0,-1,-1,0,1}, neiby[6] = {0,1,1,0,-1,-1};
// neibx and neiby define ( incremental ) (i,j) for the neighbours of a
// cell. There are six neighbours.
// cellcount --- total number of cells having nonzero ener dep
// numcell --- number of cells in a given supercluster
- // ofstream ofl0("cells_loc",ios::out);
- // initialize fInfocl[2][kNDIMX][kNDIMY]
-
+
AliDebug(1,Form("kNMX = %d nmx1 = %d kNDIMX = %d kNDIMY = %d ave = %f cutoff = %f",kNMX,nmx1,kNDIMX,kNDIMY,ave,cutoff));
- for (j=0; j < kNDIMX; j++){
- for(k=0; k < kNDIMY; k++){
- fInfocl[0][j][k] = 0;
- fInfocl[1][j][k] = 0;
+ for (j=0; j < kNDIMX; j++)
+ {
+ for(k=0; k < kNDIMY; k++)
+ {
+ fInfocl[0][j][k] = 0;
+ fInfocl[1][j][k] = 0;
+ }
+ }
+
+ for(i=0; i < kNMX; i++)
+ {
+ fInfcl[0][i] = -1;
+
+ j = iord1[i];
+ id2 = j/kNDIMX;
+ id1 = j-id2*kNDIMX;
+
+ if(edepcell[j] <= cutoff)
+ {
+ fInfocl[0][id1][id2] = -1;
+ }
}
- }
- for(i=0; i < kNMX; i++){
- fInfcl[0][i] = -1;
- id1=fIord[0][i];
- id2=fIord[1][i];
- if(fEdepCell[id1][id2] <= cutoff){fInfocl[0][id1][id2]=-1;}
- }
// ---------------------------------------------------------------
// crude clustering begins. Start with cell having largest adc
// count and loop over the cells in descending order of adc count
// ---------------------------------------------------------------
- icl=-1;
- cellcount=-1;
- for(icell=0; icell <= nmx1; icell++){
- id1=fIord[0][icell];
- id2=fIord[1][icell];
- if(fInfocl[0][id1][id2] == 0 ){
- // ---------------------------------------------------------------
- // icl -- cluster #, numcell -- # of cells in it, clust -- stores
- // coordinates of the cells in a cluster, fInfocl[0][i1][i2] is 1 for
- // primary and 2 for secondary cells,
- // fInfocl[1][i1][i2] stores cluster #
- // ---------------------------------------------------------------
- icl=icl+1;
- numcell=0;
- cellcount = cellcount + 1;
- fInfocl[0][id1][id2]=1;
- fInfocl[1][id1][id2]=icl;
- fInfcl[0][cellcount]=icl;
- fInfcl[1][cellcount]=id1;
- fInfcl[2][cellcount]=id2;
-
- clust[0][numcell]=id1;
- clust[1][numcell]=id2;
- for(i=1; i<5000; i++)clust[0][i] = -1;
- // ---------------------------------------------------------------
- // check for adc count in neib. cells. If ne 0 put it in this clust
- // ---------------------------------------------------------------
- for(i=0; i<6; i++){
- jd1=id1+neibx[i];
- jd2=id2+neiby[i];
- if( (jd1 >= 0 && jd1 < kNDIMX) && (jd2 >= 0 && jd2 < kNDIMY) &&
- fInfocl[0][jd1][jd2] == 0){
- numcell=numcell+1;
- fInfocl[0][jd1][jd2]=2;
- fInfocl[1][jd1][jd2]=icl;
- clust[0][numcell]=jd1;
- clust[1][numcell]=jd2;
- cellcount=cellcount+1;
- fInfcl[0][cellcount]=icl;
- fInfcl[1][cellcount]=jd1;
- fInfcl[2][cellcount]=jd2;
- }
- }
- // ---------------------------------------------------------------
- // check adc count for neighbour's neighbours recursively and
- // if nonzero, add these to the cluster.
- // ---------------------------------------------------------------
- for(i=1;i < 5000;i++){
- if(clust[0][i] != -1){
- id1=clust[0][i];
- id2=clust[1][i];
- for(j=0; j<6 ; j++){
- jd1=id1+neibx[j];
- jd2=id2+neiby[j];
+ icl = -1;
+ cellcount = -1;
+ for(icell=0; icell <= nmx1; icell++)
+ {
+ j = iord1[icell];
+ id2 = j/kNDIMX;
+ id1 = j-id2*kNDIMX;
+ if(fInfocl[0][id1][id2] == 0 )
+ {
+ // ---------------------------------------------------------------
+ // icl -- cluster #, numcell -- # of cells in it, clust -- stores
+ // coordinates of the cells in a cluster, fInfocl[0][i1][i2] is 1 for
+ // primary and 2 for secondary cells,
+ // fInfocl[1][i1][i2] stores cluster #
+ // ---------------------------------------------------------------
+ icl++;
+ numcell = 0;
+ cellcount++;
+ fInfocl[0][id1][id2] = 1;
+ fInfocl[1][id1][id2] = icl;
+ fInfcl[0][cellcount] = icl;
+ fInfcl[1][cellcount] = id1;
+ fInfcl[2][cellcount] = id2;
+
+ clust[0][numcell] = id1;
+ clust[1][numcell] = id2;
+ for(i = 1; i < 5000; i++)
+ {
+ clust[0][i] = -1;
+ }
+ // ---------------------------------------------------------------
+ // check for adc count in neib. cells. If ne 0 put it in this clust
+ // ---------------------------------------------------------------
+ for(i = 0; i < 6; i++)
+ {
+ jd1 = id1 + neibx[i];
+ jd2 = id2 + neiby[i];
if( (jd1 >= 0 && jd1 < kNDIMX) && (jd2 >= 0 && jd2 < kNDIMY) &&
- fInfocl[0][jd1][jd2] == 0 ){
- fInfocl[0][jd1][jd2] = 2;
- fInfocl[1][jd1][jd2] = icl;
- numcell = numcell + 1;
- clust[0][numcell] = jd1;
- clust[1][numcell] = jd2;
- cellcount = cellcount+1;
- fInfcl[0][cellcount] = icl;
- fInfcl[1][cellcount] = jd1;
- fInfcl[2][cellcount] = jd2;
+ fInfocl[0][jd1][jd2] == 0)
+ {
+ numcell++;
+ fInfocl[0][jd1][jd2] = 2;
+ fInfocl[1][jd1][jd2] = icl;
+ clust[0][numcell] = jd1;
+ clust[1][numcell] = jd2;
+ cellcount++;
+ fInfcl[0][cellcount] = icl;
+ fInfcl[1][cellcount] = jd1;
+ fInfcl[2][cellcount] = jd2;
+ }
+ }
+ // ---------------------------------------------------------------
+ // check adc count for neighbour's neighbours recursively and
+ // if nonzero, add these to the cluster.
+ // ---------------------------------------------------------------
+ for(i = 1;i < 5000; i++)
+ {
+ if(clust[0][i] != -1)
+ {
+ id1 = clust[0][i];
+ id2 = clust[1][i];
+ for(j = 0; j < 6 ; j++)
+ {
+ jd1 = id1 + neibx[j];
+ jd2 = id2 + neiby[j];
+ if( (jd1 >= 0 && jd1 < kNDIMX) &&
+ (jd2 >= 0 && jd2 < kNDIMY)
+ && fInfocl[0][jd1][jd2] == 0 )
+ {
+ fInfocl[0][jd1][jd2] = 2;
+ fInfocl[1][jd1][jd2] = icl;
+ numcell++;
+ clust[0][numcell] = jd1;
+ clust[1][numcell] = jd2;
+ cellcount++;
+ fInfcl[0][cellcount] = icl;
+ fInfcl[1][cellcount] = jd1;
+ fInfcl[2][cellcount] = jd2;
+ }
+ }
+ }
}
- }
}
- }
}
- }
- // for(icell=0; icell<=cellcount; icell++){
- // ofl0 << fInfcl[0][icell] << " " << fInfcl[1][icell] << " " <<
- // fInfcl[2][icell] << endl;
- // }
return cellcount;
}
// ------------------------------------------------------------------------ //
-void AliPMDClusteringV2::RefClust(Int_t incr)
+ void AliPMDClusteringV2::RefClust(Int_t incr, Double_t edepcell[])
{
// Does the refining of clusters
// Takes the big patch and does gaussian fitting and
// finds out the more refined clusters
- //
+ AliPMDcludata *pmdcludata = 0;
+ TArrayI testncl;
+ TArrayI testindex;
const Int_t kndim = 4500;
-
- int i, j, k, i1, i2, id, icl, itest;
- int ihld;
- int ig, nsupcl;
- int ncl[kndim], iord[kndim];
-
- double x1, y1, z1, x2, y2, z2;
- double rr;
-
- double x[kndim], y[kndim], z[kndim];
- double xc[kndim], yc[kndim], zc[kndim], cells[kndim];
- double rcl[kndim], rcs[kndim];
-
- // fClno counts the final clusters
+ Int_t i, j, k, i1, i2, id, icl, itest, ihld;
+ Int_t ig, nsupcl, clno, clX,clY;
+ Int_t clxy[15];
+ Int_t ncl[kndim], iord[kndim];
+ Float_t clusdata[6];
+ Double_t x1, y1, z1, x2, y2, z2, rr;
+ Double_t x[kndim], y[kndim], z[kndim];
+ Double_t xc[kndim], yc[kndim], zc[kndim], cells[kndim];
+ Double_t rcl[kndim], rcs[kndim];
+
+ for(Int_t kk = 0; kk < 15; kk++)
+ {
+ if( kk < 6 )clusdata[kk] = 0.;
+ }
+
// nsupcl = # of superclusters; ncl[i]= # of cells in supercluster i
// x, y and z store (x,y) coordinates of and energy deposited in a cell
// xc, yc store (x,y) coordinates of the cluster center
- // zc stores the energy deposited in a cluster
- // rc is cluster radius
- // finally the cluster information is put in 2-dimensional array clusters
- // ofstream ofl1("checking.5",ios::app);
+ // zc stores the energy deposited in a cluster, rc is cluster radius
- fClno = -1;
+ clno = -1;
nsupcl = -1;
- for(i=0; i<4500; i++){ncl[i]=-1;}
- for(i=0; i<incr; i++){
- if(fInfcl[0][i] != nsupcl){ nsupcl=nsupcl+1; }
- if (nsupcl > 4500) {
- AliWarning("RefClust: Too many superclusters!");
- nsupcl = 4500;
- break;
+ for(i = 0; i < 4500; i++)
+ {
+ ncl[i] = -1;
}
- ncl[nsupcl]=ncl[nsupcl]+1;
- }
-
+ for(i = 0; i < incr; i++)
+ {
+ if(fInfcl[0][i] != nsupcl)
+ {
+ nsupcl++;
+ }
+ if (nsupcl > 4500)
+ {
+ AliWarning("RefClust: Too many superclusters!");
+ nsupcl = 4500;
+ break;
+ }
+ ncl[nsupcl]++;
+ }
+
AliDebug(1,Form("Number of cells = %d Number of Superclusters = %d",
incr+1,nsupcl+1));
-
- id=-1;
- icl=-1;
- for(i=0; i<nsupcl; i++){
- if(ncl[i] == 0){
- id++;
- icl++;
- // one cell super-clusters --> single cluster
- // cluster center at the centyer of the cell
- // cluster radius = half cell dimension
- if (fClno >= 5000) {
- AliWarning("RefClust: Too many clusters! more than 5000");
- return;
- }
- fClno++;
- i1 = fInfcl[1][id];
- i2 = fInfcl[2][id];
- fClusters[0][fClno] = fCoord[0][i1][i2];
- fClusters[1][fClno] = fCoord[1][i1][i2];
- fClusters[2][fClno] = fEdepCell[i1][i2];
- fClusters[3][fClno] = 1.;
- fClusters[4][fClno] = 0.0;
- fClusters[5][fClno] = 0.0;
- //ofl1 << icl << " " << fCoord[0][i1][i2] << " " << fCoord[1][i1][i2] <<
- //" " << fEdepCell[i1][i2] << " " << fClusters[3][fClno] <<endl;
- }else if(ncl[i] == 1){
- // two cell super-cluster --> single cluster
- // cluster center is at ener. dep.-weighted mean of two cells
- // cluster radius == half cell dimension
- id++;
- icl++;
- if (fClno >= 5000) {
- AliWarning("RefClust: Too many clusters! more than 5000");
- return;
- }
- fClno++;
- i1 = fInfcl[1][id];
- i2 = fInfcl[2][id];
- x1 = fCoord[0][i1][i2];
- y1 = fCoord[1][i1][i2];
- z1 = fEdepCell[i1][i2];
-
- id++;
- i1 = fInfcl[1][id];
- i2 = fInfcl[2][id];
- x2 = fCoord[0][i1][i2];
- y2 = fCoord[1][i1][i2];
- z2 = fEdepCell[i1][i2];
-
- fClusters[0][fClno] = (x1*z1+x2*z2)/(z1+z2);
- fClusters[1][fClno] = (y1*z1+y2*z2)/(z1+z2);
- fClusters[2][fClno] = z1+z2;
- fClusters[3][fClno] = 2.;
- fClusters[4][fClno] = sqrt(z1*z2)/(z1+z2);
- fClusters[5][fClno] = 0; // sigma large nonzero, sigma small zero
-
- //ofl1 << icl << " " << fClusters[0][fClno] << " " << fClusters[1][fClno]
- // << " " << fClusters[2][fClno] << " " <<fClusters[3][fClno] <<endl;
- }
- else{
- id = id + 1;
- iord[0] = 0;
- // super-cluster of more than two cells - broken up into smaller
- // clusters gaussian centers computed. (peaks separated by > 1 cell)
- // Begin from cell having largest energy deposited This is first
- // cluster center
- // *****************************************************************
- // NOTE --- POSSIBLE MODIFICATION: ONE MAY NOT BREAKING SUPERCLUSTERS
- // IF NO. OF CELLS IS NOT TOO LARGE ( SAY 5 OR 6 )
- // SINCE WE EXPECT THE SUPERCLUSTER
- // TO BE A SINGLE CLUSTER
- //*******************************************************************
-
- i1 = fInfcl[1][id];
- i2 = fInfcl[2][id];
- x[0] = fCoord[0][i1][i2];
- y[0] = fCoord[1][i1][i2];
- z[0] = fEdepCell[i1][i2];
- iord[0] = 0;
- for(j=1;j<=ncl[i];j++){
-
- id = id + 1;
- i1 = fInfcl[1][id];
- i2 = fInfcl[2][id];
- iord[j] = j;
- x[j] = fCoord[0][i1][i2];
- y[j] = fCoord[1][i1][i2];
- z[j] = fEdepCell[i1][i2];
- }
- // arranging cells within supercluster in decreasing order
- for(j=1;j<=ncl[i];j++)
+
+ id = -1;
+ icl = -1;
+ for(i = 0; i < nsupcl; i++)
+ {
+ if(ncl[i] == 0)
{
- itest = 0;
- ihld = iord[j];
- for(i1=0; i1<j; i1++)
+ id++;
+ icl++;
+ // one cell super-clusters --> single cluster
+ // cluster center at the centyer of the cell
+ // cluster radius = half cell dimension
+ if (clno >= 5000)
{
- if(itest == 0 && z[iord[i1]] < z[ihld])
- {
- itest = 1;
- for(i2=j-1;i2>=i1;i2--)
- {
- iord[i2+1] = iord[i2];
- }
- iord[i1] = ihld;
- }
+ AliWarning("RefClust: Too many clusters! more than 5000");
+ return;
}
+ clno++;
+ i1 = fInfcl[1][id];
+ i2 = fInfcl[2][id];
+ Int_t i12 = i1 + i2*kNDIMX;
+ clusdata[0] = fCoord[0][i1][i2];
+ clusdata[1] = fCoord[1][i1][i2];
+ clusdata[2] = edepcell[i12];
+ clusdata[3] = 1.;
+ clusdata[4] = 0.0;
+ clusdata[5] = 0.0;
+
+ //cell information
+ clX = (Int_t) fCoord[0][i1][i2]*10;
+ clY = (Int_t) fCoord[1][i1][i2]*10;
+ clxy[0] = clX*10000 + clY;
+ for(Int_t icltr = 1; icltr < 15; icltr++)
+ {
+ clxy[icltr] = -1;
+ }
+ pmdcludata = new AliPMDcludata(clusdata,clxy);
+ fPMDclucont->Add(pmdcludata);
+
+
}
-
- // compute the number of clusters and their centers ( first
- // guess )
- // centers must be separated by cells having smaller ener. dep.
- // neighbouring centers should be either strong or well-separated
- ig = 0;
- xc[ig] = x[iord[0]];
- yc[ig] = y[iord[0]];
- zc[ig] = z[iord[0]];
- for(j=1;j<=ncl[i];j++){
- itest = -1;
- x1 = x[iord[j]];
- y1 = y[iord[j]];
- for(k=0;k<=ig;k++){
- x2 = xc[k];
- y2 = yc[k];
- rr = Distance(x1,y1,x2,y2);
- //***************************************************************
- // finetuning cluster splitting
- // the numbers zc/4 and zc/10 may need to be changed.
- // Also one may need to add one more layer because our
- // cells are smaller in absolute scale
- //****************************************************************
-
-
- if( rr >= 1.1 && rr < 1.8 && z[iord[j]] > zc[k]/4.)
- itest++;
- if( rr >= 1.8 && rr < 2.1 && z[iord[j]] > zc[k]/10.)
- itest++;
- if( rr >= 2.1)itest++;
- }
- if(itest == ig){
- ig++;
- xc[ig] = x1;
- yc[ig] = y1;
- zc[ig] = z[iord[j]];
- }
- }
-
- ClustDetails(ncl[i], ig, x[0], y[0] ,z[0], xc[0], yc[0], zc[0],
- rcl[0], rcs[0], cells[0]);
-
- icl = icl + ig + 1;
-
- for(j=0; j<=ig; j++)
+ else if(ncl[i] == 1)
{
- if (fClno >= 5000)
+ // two cell super-cluster --> single cluster
+ // cluster center is at ener. dep.-weighted mean of two cells
+ // cluster radius == half cell dimension
+ id++;
+ icl++;
+ if (clno >= 5000)
{
AliWarning("RefClust: Too many clusters! more than 5000");
return;
}
- fClno++;
- fClusters[0][fClno] = xc[j];
- fClusters[1][fClno] = yc[j];
- fClusters[2][fClno] = zc[j];
- fClusters[4][fClno] = rcl[j];
- fClusters[5][fClno] = rcs[j];
- if(ig == 0)
- {
- fClusters[3][fClno] = ncl[i];
- }
- else
+ clno++;
+ i1 = fInfcl[1][id];
+ i2 = fInfcl[2][id];
+ Int_t i12 = i1 + i2*kNDIMX;
+
+ x1 = fCoord[0][i1][i2];
+ y1 = fCoord[1][i1][i2];
+ z1 = edepcell[i12];
+
+ id++;
+ i1 = fInfcl[1][id];
+ i2 = fInfcl[2][id];
+ i12 = i1 + i2*kNDIMX;
+
+ x2 = fCoord[0][i1][i2];
+ y2 = fCoord[1][i1][i2];
+ z2 = edepcell[i12];
+
+ clusdata[0] = (x1*z1+x2*z2)/(z1+z2);
+ clusdata[1] = (y1*z1+y2*z2)/(z1+z2);
+ clusdata[2] = z1+z2;
+ clusdata[3] = 2.;
+ clusdata[4] = (TMath::Sqrt(z1*z2))/(z1+z2);
+ clusdata[5] = 0.0;
+
+ clX = (Int_t) x1*10;
+ clY = (Int_t) y1*10;
+ clxy[0] = clX*10000 + clY;
+
+ clX = (Int_t) x2*10;
+ clY = (Int_t) y2*10;
+ clxy[1] = clX*10000 + clY;
+
+ for(Int_t icltr = 2; icltr < 15; icltr++)
{
- fClusters[3][fClno] = cells[j];
+ clxy[icltr] = -1;
}
+ pmdcludata = new AliPMDcludata(clusdata, clxy);
+ fPMDclucont->Add(pmdcludata);
}
-
-
+ else{
+ id++;
+ iord[0] = 0;
+ // super-cluster of more than two cells - broken up into smaller
+ // clusters gaussian centers computed. (peaks separated by > 1 cell)
+ // Begin from cell having largest energy deposited This is first
+ // cluster center
+ // *****************************************************************
+ // NOTE --- POSSIBLE MODIFICATION: ONE MAY NOT BREAKING SUPERCLUSTERS
+ // IF NO. OF CELLS IS NOT TOO LARGE ( SAY 5 OR 6 )
+ // SINCE WE EXPECT THE SUPERCLUSTER
+ // TO BE A SINGLE CLUSTER
+ //*******************************************************************
+
+ i1 = fInfcl[1][id];
+ i2 = fInfcl[2][id];
+ Int_t i12 = i1 + i2*kNDIMX;
+
+ x[0] = fCoord[0][i1][i2];
+ y[0] = fCoord[1][i1][i2];
+ z[0] = edepcell[i12];
+
+ iord[0] = 0;
+ for(j = 1; j <= ncl[i]; j++)
+ {
+
+ id++;
+ i1 = fInfcl[1][id];
+ i2 = fInfcl[2][id];
+ Int_t i12 = i1 + i2*kNDIMX;
+ iord[j] = j;
+ x[j] = fCoord[0][i1][i2];
+ y[j] = fCoord[1][i1][i2];
+ z[j] = edepcell[i12];
+ }
+
+ // arranging cells within supercluster in decreasing order
+ for(j = 1; j <= ncl[i];j++)
+ {
+ itest = 0;
+ ihld = iord[j];
+ for(i1 = 0; i1 < j; i1++)
+ {
+ if(itest == 0 && z[iord[i1]] < z[ihld])
+ {
+ itest = 1;
+ for(i2 = j-1;i2 >= i1;i2--)
+ {
+ iord[i2+1] = iord[i2];
+ }
+ iord[i1] = ihld;
+ }
+ }
+ }
+
+
+ // compute the number of clusters and their centers ( first
+ // guess )
+ // centers must be separated by cells having smaller ener. dep.
+ // neighbouring centers should be either strong or well-separated
+ ig = 0;
+ xc[ig] = x[iord[0]];
+ yc[ig] = y[iord[0]];
+ zc[ig] = z[iord[0]];
+ for(j = 1; j <= ncl[i]; j++)
+ {
+ itest = -1;
+ x1 = x[iord[j]];
+ y1 = y[iord[j]];
+ for(k = 0; k <= ig; k++)
+ {
+ x2 = xc[k];
+ y2 = yc[k];
+ rr = Distance(x1,y1,x2,y2);
+ //************************************************************
+ // finetuning cluster splitting
+ // the numbers zc/4 and zc/10 may need to be changed.
+ // Also one may need to add one more layer because our
+ // cells are smaller in absolute scale
+ //************************************************************
+
+
+ if( rr >= 1.1 && rr < 1.8 && z[iord[j]] > zc[k]/4.) itest++;
+ if( rr >= 1.8 && rr < 2.1 && z[iord[j]] > zc[k]/10.) itest++;
+ if( rr >= 2.1)itest++;
+ }
+
+ if(itest == ig)
+ {
+ ig++;
+ xc[ig] = x1;
+ yc[ig] = y1;
+ zc[ig] = z[iord[j]];
+ }
+ }
+ ClustDetails(ncl[i], ig, x[0], y[0] ,z[0], xc[0], yc[0], zc[0],
+ rcl[0], rcs[0], cells[0], testncl, testindex);
+
+ Int_t pp = 0;
+ for(j = 0; j <= ig; j++)
+ {
+ clno++;
+ if (clno >= 5000)
+ {
+ AliWarning("RefClust: Too many clusters! more than 5000");
+ return;
+ }
+ clusdata[0] = xc[j];
+ clusdata[1] = yc[j];
+ clusdata[2] = zc[j];
+ clusdata[4] = rcl[j];
+ clusdata[5] = rcs[j];
+ if(ig == 0)
+ {
+ clusdata[3] = ncl[i];
+ }
+ else
+ {
+ clusdata[3] = cells[j];
+ }
+ // cell information
+ Int_t ncellcls = testncl[j];
+ if( ncellcls < 15 )
+ {
+ for(Int_t kk = 1; kk <= ncellcls; kk++)
+ {
+ Int_t ll = testindex[pp];
+ clX = (Int_t) x[ll]*10;
+ clY = (Int_t) y[ll]*10;
+ clxy[kk-1] = (Int_t) clX*10000 + clY ;
+ pp++;
+ }
+ for(Int_t icltr = ncellcls ; icltr < 15; icltr++)
+ {
+ clxy[icltr] = -1;
+ }
+ }
+ pmdcludata = new AliPMDcludata(clusdata, clxy);
+ fPMDclucont->Add(pmdcludata);
+ }
+ testncl.Set(0);
+ testindex.Set(0);
+ }
}
- }
}
-
-
// ------------------------------------------------------------------------ //
-
-void AliPMDClusteringV2::ClustDetails(Int_t ncell, Int_t nclust,
- Double_t &x, Double_t &y, Double_t &z,
- Double_t &xc, Double_t &yc, Double_t &zc,
- Double_t &rcl, Double_t &rcs,
- Double_t &cells)
+void AliPMDClusteringV2::ClustDetails(Int_t ncell, Int_t nclust, Double_t &x,
+ Double_t &y, Double_t &z, Double_t &xc,
+ Double_t &yc, Double_t &zc,
+ Double_t &rcl, Double_t &rcs,
+ Double_t &cells, TArrayI &testncl,
+ TArrayI &testindex)
{
// function begins
//
-
- const Int_t kndim1 = 4500;
- const Int_t kndim2 = 10;
- const Int_t kndim3 = 100;
- int i, j, k, i1, i2;
- int cluster[kndim1][kndim2];
+ const Int_t kndim1 = 2000;
+ const Int_t kndim2 = 10;
+ const Int_t kndim3 = 400;
- double x1, y1, x2, y2, rr;
- double sumx, sumy, sumxy, sumxx;
- double sum, sum1, sumyy;
- double b, c, r1, r2;
-
- double xx[kndim1], yy[kndim1], zz[kndim1];
- double xxc[kndim1], yyc[kndim1];
-
- double str[kndim1];
-
- double str1[kndim1];
- double xcl[kndim1], ycl[kndim1], cln[kndim1];
- double clustcell[kndim1][kndim3];
-
- for(i=0; i<=nclust; i++){
- xxc[i]=*(&xc+i);
- yyc[i]=*(&yc+i);
- str[i]=0.;
- str1[i]=0.;
- }
- for(i=0; i<=ncell; i++){
- xx[i]=*(&x+i);
- yy[i]=*(&y+i);
- zz[i]=*(&z+i);
- }
- // INITIALIZE
- for(i=0; i<4500; i++){
- for(j=0; j<100; j++){
- clustcell[i][j]=0.;
- }
- }
+ Int_t i, j, k, i1, i2;
+ Int_t cluster[kndim1][kndim2], cell[kndim1][kndim3];
+
+ Double_t x1, y1, x2, y2, rr, b, c, r1, r2;
+ Double_t sumx, sumy, sumxy, sumxx, sum, sum1, sumyy;
+ Double_t xx[kndim1], yy[kndim1], zz[kndim1];
+ Double_t xxc[kndim1], yyc[kndim1],clustcell[kndim3][kndim1];
+ Double_t str[kndim1], str1[kndim1],xcl[kndim1], ycl[kndim1], cln[kndim1];
- // INITIALIZE
- for(i=0;i<4500;i++){
- for(j=0;j<10;j++){
- cluster[i][j]=0;
+ for(i = 0; i <= nclust; i++)
+ {
+ xxc[i] = *(&xc+i);
+ yyc[i] = *(&yc+i);
+ str[i] = 0.;
+ str1[i] = 0.;
}
- }
-
-
- if(nclust > 0){
- // more than one cluster
- // checking cells shared between several clusters.
- // First check if the cell is within
- // one cell unit ( nearest neighbour). Else,
- // if it is within 1.74 cell units ( next nearest )
- // Else if it is upto 2 cell units etc.
-
- for (i=0; i<=ncell; i++){
- x1 = xx[i];
- y1 = yy[i];
- cluster[i][0] = 0;
- // distance <= 1 cell unit
- for(j=0; j<=nclust; j++)
+ for(i = 0; i <= ncell; i++)
+ {
+ xx[i] = *(&x+i);
+ yy[i] = *(&y+i);
+ zz[i] = *(&z+i);
+ }
+
+ // INITIALIZE
+
+ for(i = 0; i < kndim1; i++)
+ {
+ for(j = 0; j < kndim2; j++)
{
- x2 = xxc[j];
- y2 = yyc[j];
- rr = Distance(x1, y1, x2, y2);
- if(rr <= 1.)
- {
- cluster[i][0]++;
- i1 = cluster[i][0];
- cluster[i][i1] = j;
- }
+ cluster[i][j] = 0;
+
+ }
+ for(j = 0; j < kndim3; j++)
+ {
+ cell[i][j] = 0;
+ clustcell[j][i] = 0.;
}
- // next nearest neighbour
- if(cluster[i][0] == 0)
+ }
+
+
+ if(nclust > 0)
+ {
+ // more than one cluster
+ // checking cells shared between several clusters.
+ // First check if the cell is within
+ // one cell unit ( nearest neighbour). Else,
+ // if it is within 1.74 cell units ( next nearest )
+ // Else if it is upto 2 cell units etc.
+
+ for (i = 0; i <= ncell; i++)
{
- for(j=0; j<=nclust; j++)
+ x1 = xx[i];
+ y1 = yy[i];
+ cluster[i][0] = 0;
+ // distance <= 1 cell unit
+ for(j = 0; j <= nclust; j++)
{
x2 = xxc[j];
y2 = yyc[j];
rr = Distance(x1, y1, x2, y2);
- if(rr <= sqrt(3.))
+ if(rr <= 1.)
{
cluster[i][0]++;
i1 = cluster[i][0];
cluster[i][i1] = j;
}
}
+ // next nearest neighbour
+ if(cluster[i][0] == 0)
+ {
+ for(j=0; j<=nclust; j++)
+ {
+ x2 = xxc[j];
+ y2 = yyc[j];
+ rr = Distance(x1, y1, x2, y2);
+ if(rr <= TMath::Sqrt(3.))
+ {
+ cluster[i][0]++;
+ i1 = cluster[i][0];
+ cluster[i][i1] = j;
+ }
+ }
+ }
+ // next-to-next nearest neighbour
+ if(cluster[i][0] == 0)
+ {
+ for(j=0; j<=nclust; j++)
+ {
+ x2 = xxc[j];
+ y2 = yyc[j];
+ rr = Distance(x1, y1, x2, y2);
+ if(rr <= 2.)
+ {
+ cluster[i][0]++;
+ i1 = cluster[i][0];
+ cluster[i][i1] = j;
+ }
+ }
+ }
+ // one more
+ if(cluster[i][0] == 0)
+ {
+ for(j = 0; j <= nclust; j++)
+ {
+ x2 = xxc[j];
+ y2 = yyc[j];
+ rr = Distance(x1, y1, x2, y2);
+ if(rr <= 2.7)
+ {
+ cluster[i][0]++;
+ i1 = cluster[i][0];
+ cluster[i][i1] = j;
+ }
+ }
+ }
}
- // next-to-next nearest neighbour
- if(cluster[i][0] == 0)
+
+ // computing cluster strength. Some cells are shared.
+ for(i = 0; i <= ncell; i++)
{
- for(j=0; j<=nclust; j++)
+ if(cluster[i][0] != 0)
{
- x2 = xxc[j];
- y2 = yyc[j];
- rr = Distance(x1, y1, x2, y2);
- if(rr <= 2.)
+ i1 = cluster[i][0];
+ for(j = 1; j <= i1; j++)
{
- cluster[i][0]++;
- i1 = cluster[i][0];
- cluster[i][i1] = j;
+ i2 = cluster[i][j];
+ str[i2] += zz[i]/i1;
}
}
}
- // one more
- if(cluster[i][0] == 0)
+
+ for(k = 0; k < 5; k++)
{
- for(j=0; j<=nclust; j++)
+ for(i = 0; i <= ncell; i++)
{
- x2 = xxc[j];
- y2 = yyc[j];
- rr = Distance(x1, y1, x2, y2);
- if(rr <= 2.7)
+ if(cluster[i][0] != 0)
{
- cluster[i][0]++;
- i1 = cluster[i][0];
- cluster[i][i1] = j;
+ i1=cluster[i][0];
+ sum=0.;
+ for(j = 1; j <= i1; j++)
+ {
+ sum += str[cluster[i][j]];
+ }
+
+ for(j = 1; j <= i1; j++)
+ {
+ i2 = cluster[i][j];
+ str1[i2] += zz[i]*str[i2]/sum;
+ clustcell[i2][i] = zz[i]*str[i2]/sum;
+ }
}
}
+
+
+ for(j = 0; j <= nclust; j++)
+ {
+ str[j] = str1[j];
+ str1[j] = 0.;
+ }
}
- }
-
-
- // computing cluster strength. Some cells are shared.
- for(i=0; i<=ncell; i++){
- if(cluster[i][0] != 0){
- i1 = cluster[i][0];
- for(j=1; j<=i1; j++){
- i2 = cluster[i][j];
- str[i2] = str[i2]+zz[i]/i1;
+
+ for(i = 0; i <= nclust; i++)
+ {
+ sumx = 0.;
+ sumy = 0.;
+ sum = 0.;
+ sum1 = 0.;
+ for(j = 0; j <= ncell; j++)
+ {
+ if(clustcell[i][j] != 0)
+ {
+ sumx += clustcell[i][j]*xx[j];
+ sumy += clustcell[i][j]*yy[j];
+ sum += clustcell[i][j];
+ sum1 += clustcell[i][j]/zz[j];
+ }
+ }
+ //** xcl and ycl are cluster centroid positions ( center of gravity )
+
+ xcl[i] = sumx/sum;
+ ycl[i] = sumy/sum;
+ cln[i] = sum1;
+ sumxx = 0.;
+ sumyy = 0.;
+ sumxy = 0.;
+ for(j = 0; j <= ncell; j++)
+ {
+ sumxx += clustcell[i][j]*(xx[j]-xcl[i])*(xx[j]-xcl[i])/sum;
+ sumyy += clustcell[i][j]*(yy[j]-ycl[i])*(yy[j]-ycl[i])/sum;
+ sumxy += clustcell[i][j]*(xx[j]-xcl[i])*(yy[j]-ycl[i])/sum;
+ }
+ b = sumxx+sumyy;
+ c = sumxx*sumyy-sumxy*sumxy;
+ // ******************r1 and r2 are major and minor axes ( r1 > r2 ).
+ r1 = b/2.+TMath::Sqrt(b*b/4.-c);
+ r2 = b/2.-TMath::Sqrt(b*b/4.-c);
+ // final assignments to proper external variables
+ *(&xc + i) = xcl[i];
+ *(&yc + i) = ycl[i];
+ *(&zc + i) = str[i];
+ *(&cells + i) = cln[i];
+ *(&rcl+i) = r1;
+ *(&rcs+i) = r2;
}
- }
- }
-
- for(k=0; k<5; k++)
- {
- for(i=0; i<=ncell; i++)
- {
- if(cluster[i][0] != 0)
- {
- i1=cluster[i][0];
- sum=0.;
- for(j=1; j<=i1; j++)
- {
- sum=sum+str[cluster[i][j]];
- }
-
- for(j=1; j<=i1; j++)
- {
- i2 = cluster[i][j];
- str1[i2] = str1[i2] + zz[i]*str[i2]/sum;
- clustcell[i2][i] = zz[i]*str[i2]/sum;
- }
- }
- }
-
-
- for(j=0; j<=nclust; j++)
+
+ //To get the cell position in a cluster
+
+ for(Int_t ii=0; ii<= ncell; ii++)
+ {
+ Int_t jj = cluster[ii][0];
+ for(Int_t kk=1; kk<= jj; kk++)
{
- str[j]=str1[j];
- str1[j]=0.;
+ Int_t ll = cluster[ii][kk];
+ cell[ll][0]++;
+ cell[ll][cell[ll][0]] = ii;
}
- }
-
- for(i=0; i<=nclust; i++){
+ }
+
+ testncl.Set(nclust+1);
+ Int_t counter = 0;
+
+ for(Int_t ii=0; ii <= nclust; ii++)
+ {
+ testncl[ii] = cell[ii][0];
+ counter += testncl[ii];
+ }
+ testindex.Set(counter);
+ Int_t ll = 0;
+ for(Int_t ii=0; ii<= nclust; ii++)
+ {
+ for(Int_t jj = 1; jj<= testncl[ii]; jj++)
+ {
+ Int_t kk = cell[ii][jj];
+ testindex[ll] = kk;
+ ll++;
+ }
+ }
+
+ }
+ else
+ {
sumx = 0.;
sumy = 0.;
sum = 0.;
sum1 = 0.;
- for(j=0; j<=ncell; j++){
- if(clustcell[i][j] != 0){
- sumx = sumx+clustcell[i][j]*xx[j];
- sumy = sumy+clustcell[i][j]*yy[j];
- sum = sum+clustcell[i][j];
- sum1 = sum1+clustcell[i][j]/zz[j];
+ i = 0;
+ for(j = 0; j <= ncell; j++)
+ {
+ sumx += zz[j]*xx[j];
+ sumy += zz[j]*yy[j];
+ sum += zz[j];
+ sum1++;
}
- }
- //***** xcl and ycl are cluster centroid positions ( center of gravity )
-
xcl[i] = sumx/sum;
ycl[i] = sumy/sum;
cln[i] = sum1;
- sumxx = 0.;
- sumyy = 0.;
- sumxy = 0.;
- for(j=0; j<=ncell; j++){
- sumxx = sumxx+clustcell[i][j]*(xx[j]-xcl[i])*(xx[j]-xcl[i])/sum;
- sumyy = sumyy+clustcell[i][j]*(yy[j]-ycl[i])*(yy[j]-ycl[i])/sum;
- sumxy = sumxy+clustcell[i][j]*(xx[j]-xcl[i])*(yy[j]-ycl[i])/sum;
- }
- b = sumxx+sumyy;
- c = sumxx*sumyy-sumxy*sumxy;
- // ******************r1 and r2 are major and minor axes ( r1 > r2 ).
- r1 = b/2.+sqrt(b*b/4.-c);
- r2 = b/2.-sqrt(b*b/4.-c);
- // final assignments to proper external variables
- *(&xc + i) = xcl[i];
- *(&yc + i) = ycl[i];
- *(&zc + i) = str[i];
+ sumxx = 0.;
+ sumyy = 0.;
+ sumxy = 0.;
+ for(j = 0; j <= ncell; j++)
+ {
+ sumxx += clustcell[i][j]*(xx[j]-xcl[i])*(xx[j]-xcl[i])/sum;
+ sumyy += clustcell[i][j]*(yy[j]-ycl[i])*(yy[j]-ycl[i])/sum;
+ sumxy += clustcell[i][j]*(xx[j]-xcl[i])*(yy[j]-ycl[i])/sum;
+ }
+ b = sumxx+sumyy;
+ c = sumxx*sumyy-sumxy*sumxy;
+ r1 = b/2.+ TMath::Sqrt(b*b/4.-c);
+ r2 = b/2.- TMath::Sqrt(b*b/4.-c);
+
+ // To get the cell position in a cluster
+ testncl.Set(nclust+1);
+ testindex.Set(ncell);
+ cell[0][0] = ncell;
+ testncl[0] = cell[0][0];
+ Int_t ll = 0;
+ for(Int_t ii=1; ii<=ncell; ii++)
+ {
+ cell[0][ii]=ii;
+ //clustcell[0][ii]=1.;
+ Int_t kk = cell[0][ii];
+ testindex[ll] = kk;
+ ll++;
+ }
+ // final assignments
+ *(&xc + i) = xcl[i];
+ *(&yc + i) = ycl[i];
+ *(&zc + i) = str[i];
*(&cells + i) = cln[i];
- *(&rcl+i) = r1;
- *(&rcs+i) = r2;
- }
- }else{
- sumx = 0.;
- sumy = 0.;
- sum = 0.;
- sum1 = 0.;
- i = 0;
- for(j=0; j<=ncell; j++){
- sumx = sumx+zz[j]*xx[j];
- sumy = sumy+zz[j]*yy[j];
- sum = sum+zz[j];
- sum1 = sum1+1.;
- }
- xcl[i] = sumx/sum;
- ycl[i] = sumy/sum;
- cln[i] = sum1;
- sumxx = 0.;
- sumyy = 0.;
- sumxy = 0.;
- for(j=0; j<=ncell; j++){
- sumxx = sumxx+clustcell[i][j]*(xx[j]-xcl[i])*(xx[j]-xcl[i])/sum;
- sumyy = sumyy+clustcell[i][j]*(yy[j]-ycl[i])*(yy[j]-ycl[i])/sum;
- sumxy = sumxy+clustcell[i][j]*(xx[j]-xcl[i])*(yy[j]-ycl[i])/sum;
+ *(&rcl+i) = r1;
+ *(&rcs+i) = r2;
}
- b = sumxx+sumyy;
- c = sumxx*sumyy-sumxy*sumxy;
- r1 = b/2.+sqrt(b*b/4.-c);
- r2 = b/2.-sqrt(b*b/4.-c);
- // final assignments
- *(&xc + i) = xcl[i];
- *(&yc + i) = ycl[i];
- *(&zc + i) = str[i];
- *(&cells + i) = cln[i];
- *(&rcl+i) = r1;
- *(&rcs+i) = r2;
- }
}
// ------------------------------------------------------------------------ //
Double_t AliPMDClusteringV2::Distance(Double_t x1, Double_t y1,
Double_t x2, Double_t y2)
{
- return sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));
+ return TMath::Sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));
}
// ------------------------------------------------------------------------ //
void AliPMDClusteringV2::SetEdepCut(Float_t decut)
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff