// AliITSClusterFinderSDD AliITSClusterFinderV2 //
////////////////////////////////////////////////////////////////////////////
+#include "AliRun.h"
#include "AliITSClusterFinder.h"
#include "AliITSRecPoint.h"
#include "AliITSdigit.h"
#include "AliITSDetTypeRec.h"
-#include "AliITSgeom.h"
#include "AliITSMap.h"
+#include "AliITSgeomTGeo.h"
+#include <TParticle.h>
+#include "AliMC.h"
ClassImp(AliITSClusterFinder)
+extern AliRun *gAlice;
+
//----------------------------------------------------------------------
AliITSClusterFinder::AliITSClusterFinder():
TObject(),
fModule(0),
fDigits(0),
fNdigits(0),
-fResponse(0),
-fSegmentation(0),
+fDetTypeRec(0),
fClusters(0),
fNRawClusters(0),
fMap(0),
fNperMax(0),
fDeclusterFlag(0),
fClusterSize(0),
-fNPeaks(-1){
+fNPeaks(-1),
+fNModules(AliITSgeomTGeo::GetNModules()),
+fEvent(0){
// default cluster finder
// Input:
// none.
// A default constructed AliITSCulsterFinder
}
//----------------------------------------------------------------------
-AliITSClusterFinder::AliITSClusterFinder(AliITSsegmentation *seg,
- AliITSresponse *res):
+AliITSClusterFinder::AliITSClusterFinder(AliITSDetTypeRec* dettyp):
TObject(),
fDebug(0),
fModule(0),
fDigits(0),
fNdigits(0),
-fResponse(res),
-fSegmentation(seg),
+fDetTypeRec(dettyp),
fClusters(0),
fNRawClusters(0),
fMap(0),
fNperMax(0),
fDeclusterFlag(0),
fClusterSize(0),
-fNPeaks(-1){
+fNPeaks(-1),
+fNModules(AliITSgeomTGeo::GetNModules()),
+fEvent(0){
+ // default cluster finder
// Standard constructor for cluster finder
// Input:
// AliITSsegmentation *seg The segmentation class to be used
SetDeclusterFlag();
}
//----------------------------------------------------------------------
-AliITSClusterFinder::AliITSClusterFinder(AliITSsegmentation *seg,
- AliITSresponse *response,
- TClonesArray *digits):
+AliITSClusterFinder::AliITSClusterFinder(AliITSDetTypeRec* dettyp,
+ TClonesArray *digits):
TObject(),
fDebug(0),
fModule(0),
fDigits(digits),
fNdigits(0),
-fResponse(response),
-fSegmentation(seg),
+fDetTypeRec(dettyp),
fClusters(0),
fNRawClusters(0),
fMap(0),
fNperMax(0),
fDeclusterFlag(0),
fClusterSize(0),
-fNPeaks(-1){
+fNPeaks(-1),
+fNModules(AliITSgeomTGeo::GetNModules()),
+fEvent(0){
+ // default cluster finder
// Standard + cluster finder constructor
// Input:
// AliITSsegmentation *seg The segmentation class to be used
SetClusterSize();
SetDeclusterFlag();
}
+
//______________________________________________________________________
-AliITSClusterFinder::AliITSClusterFinder(const AliITSClusterFinder &source) : TObject(source) {
+AliITSClusterFinder::AliITSClusterFinder(const AliITSClusterFinder &source) : TObject(source),
+fDebug(source.fDebug),
+fModule(source.fModule),
+fDigits(),
+fNdigits(source.fNdigits),
+fDetTypeRec(),
+fClusters(),
+fNRawClusters(source.fNRawClusters),
+fMap(),
+fNperMax(source.fNperMax),
+fDeclusterFlag(source.fDeclusterFlag),
+fClusterSize(source.fClusterSize),
+fNPeaks(source.fNPeaks),
+fNModules(source.fNModules),
+fEvent(source.fEvent) {
// Copy constructor
// Copies are not allowed. The method is protected to avoid misuse.
- Fatal("AliITSClusterFinder","Copy constructor not allowed\n");
+ AliError("Copy constructor not allowed\n");
}
+
//______________________________________________________________________
-AliITSClusterFinder& AliITSClusterFinder::operator=(const AliITSClusterFinder& /* source */){
+//AliITSClusterFinder& AliITSClusterFinder::operator=(const AliITSClusterFinder& /* source */){
// Assignment operator
// Assignment is not allowed. The method is protected to avoid misuse.
- Fatal("= operator","Assignment operator not allowed\n");
- return *this;
-}
+// Fatal("= operator","Assignment operator not allowed\n");
+// return *this;
+//}
//----------------------------------------------------------------------
AliITSClusterFinder::~AliITSClusterFinder(){
if(fMap) {delete fMap;}
// Zero local pointers. Other classes own these pointers.
- fSegmentation = 0;
- fResponse = 0;
fMap = 0;
fDigits = 0;
fNdigits = 0;
fDeclusterFlag= 0;
fClusterSize = 0;
fNPeaks = 0;
- // fITS = 0;
fDetTypeRec = 0;
- fITSgeom = 0;
}
//__________________________________________________________________________
void AliITSClusterFinder::InitGeometry(){
-
-
- //Initialisation of ITS geometry
- if(!fITSgeom) {
- Error("InitGeometry","ITS geom is null!");
- return;
- }
- Int_t mmax=fITSgeom->GetIndexMax();
- if (mmax>2200) {
- Fatal("AliITSClusterFinder","Too many ITS subdetectors !");
- }
- Int_t m;
- for (m=0; m<mmax; m++) {
- Int_t lay,lad,det; fITSgeom->GetModuleId(m,lay,lad,det);
- Float_t x,y,z; fITSgeom->GetTrans(lay,lad,det,x,y,z);
- Double_t rot[9]; fITSgeom->GetRotMatrix(lay,lad,det,rot);
- Double_t alpha=TMath::ATan2(rot[1],rot[0])+TMath::Pi();
- Double_t ca=TMath::Cos(alpha), sa=TMath::Sin(alpha);
- fYshift[m] = x*ca + y*sa;
- fZshift[m] = (Double_t)z;
- fNdet[m] = (lad-1)*fITSgeom->GetNdetectors(lay) + (det-1);
+ //
+ // Initialisation of ITS geometry
+ //
+ Int_t mmax=AliITSgeomTGeo::GetNModules();
+ for (Int_t m=0; m<mmax; m++) {
+ Int_t lay,lad,det; AliITSgeomTGeo::GetModuleId(m,lay,lad,det);
+ fNdet[m] = (lad-1)*AliITSgeomTGeo::GetNDetectors(lay) + (det-1);
fNlayer[m] = lay-1;
}
}
*os << fClusterSize<<",";
*os << fNPeaks<<endl;
}
-/*
-//______________________________________________________________________
-void AliITSClusterFinder::RecPoints2Clusters
-(const TClonesArray *points, Int_t idx, TClonesArray *clusters) {
- //------------------------------------------------------------
- // Conversion AliITSRecPoint -> AliITSclusterV2 for the ITS
- // subdetector indexed by idx
- //------------------------------------------------------------
- if(!fITSgeom) {
- Error("RecPoints2Clusters","ITS geom is null!");
- return;
- }
- Int_t lastSPD1=fITSgeom->GetModuleIndex(2,1,1)-1;
- TClonesArray &cl=*clusters;
- Int_t ncl=points->GetEntriesFast();
- for (Int_t i=0; i<ncl; i++) {
- AliITSRecPoint *p = (AliITSRecPoint *)points->UncheckedAt(i);
- Float_t lp[5];
- lp[0]=-(-p->GetX()+fYshift[idx]); if (idx<=lastSPD1) lp[0]*=-1; //SPD1
- lp[1]= -p->GetZ()+fZshift[idx];
- lp[2]=p->GetSigmaX2();
- lp[3]=p->GetSigmaZ2();
- lp[4]=p->GetQ()*36./23333.; //electrons -> ADC
- Int_t lab[4];
- lab[0]=p->GetLabel(0); lab[1]=p->GetLabel(1); lab[2]=p->GetLabel(2);
- lab[3]=fNdet[idx];
- CheckLabels(lab);
- Int_t dummy[3]={0,0,0};
- new (cl[i]) AliITSclusterV2(lab,lp, dummy);
- }
-}
-*/
//______________________________________________________________________
void AliITSClusterFinder::Read(istream *is) {
//Standard input for this class
source.Read(&is);
return is;
}
-/*
-void AliITSClusterFinder::RecPoints2Clusters
-(const TClonesArray *points, Int_t idx, TClonesArray *clusters) {
+//______________________________________________________________________
+void AliITSClusterFinder::CheckLabels2(Int_t lab[10]) {
//------------------------------------------------------------
- // Conversion AliITSRecPoint -> AliITSclusterV2 for the ITS
- // subdetector indexed by idx
+ // Tries to find mother's labels
//------------------------------------------------------------
- TClonesArray &cl=*clusters;
- Int_t ncl=points->GetEntriesFast();
- for (Int_t i=0; i<ncl; i++) {
- AliITSRecPoint *p = (AliITSRecPoint *)points->UncheckedAt(i);
- Float_t lp[5];
- lp[0]=-(-p->GetX()+fYshift[idx]); if (idx<=fLastSPD1) lp[0]*=-1; //SPD1
- lp[1]= -p->GetZ()+fZshift[idx];
- lp[2]=p->GetSigmaX2();
- lp[3]=p->GetSigmaZ2();
- lp[4]=p->GetQ()*36./23333.; //electrons -> ADC
- Int_t lab[4];
- lab[0]=p->GetLabel(0); lab[1]=p->GetLabel(1); lab[2]=p->GetLabel(2);
- lab[3]=fNdet[idx];
- CheckLabels(lab);
- Int_t dummy[3]={0,0,0};
- new (cl[i]) AliITSclusterV2(lab,lp, dummy);
- }
-}
-*/
+ AliRunLoader *rl = AliRunLoader::GetRunLoader();
+ TTree *trK=(TTree*)rl->TreeK();
+
+ if(trK){
+ Int_t nlabels =0;
+ for (Int_t i=0;i<10;i++) if (lab[i]>=0) nlabels++;
+ if(nlabels == 0) return; // In case of no labels just exit
+
+
+ Int_t ntracks = gAlice->GetMCApp()->GetNtrack();
+
+ for (Int_t i=0;i<10;i++){
+ Int_t label = lab[i];
+ if (label>=0 && label<ntracks) {
+ TParticle *part=(TParticle*)gAlice->GetMCApp()->Particle(label);
+
+ if (part->P() < 0.02) {
+ Int_t m=part->GetFirstMother();
+ if (m<0) {
+ continue;
+ }
+ if (part->GetStatusCode()>0) {
+ continue;
+ }
+ lab[i]=m;
+ }
+ else
+ if (part->P() < 0.12 && nlabels>3) {
+ lab[i]=-2;
+ nlabels--;
+ }
+ }
+ else{
+ if ( (label>ntracks||label <0) && nlabels>3) {
+ lab[i]=-2;
+ nlabels--;
+ }
+ }
+ }
+ if (nlabels>3){
+ for (Int_t i=0;i<10;i++){
+ if (nlabels>3){
+ Int_t label = lab[i];
+ if (label>=0 && label<ntracks) {
+ TParticle *part=(TParticle*)gAlice->GetMCApp()->Particle(label);
+ if (part->P() < 0.1) {
+ lab[i]=-2;
+ nlabels--;
+ }
+ }
+ }
+ }
+ }
+
+ //compress labels -- if multi-times the same
+ Int_t lab2[10];
+ for (Int_t i=0;i<10;i++) lab2[i]=-2;
+ for (Int_t i=0;i<10 ;i++){
+ if (lab[i]<0) continue;
+ for (Int_t j=0;j<10 &&lab2[j]!=lab[i];j++){
+ if (lab2[j]<0) {
+ lab2[j]= lab[i];
+ break;
+ }
+ }
+ }
+ for (Int_t j=0;j<10;j++) lab[j]=lab2[j];
+
+ }
+}
+
+//______________________________________________________________________
+void AliITSClusterFinder::AddLabel(Int_t lab[10], Int_t label) {
+ //add label to the cluster
+ AliRunLoader *rl = AliRunLoader::GetRunLoader();
+ TTree *trK=(TTree*)rl->TreeK();
+ if(trK){
+ if(label<0) return; // In case of no label just exit
+
+ Int_t ntracks = gAlice->GetMCApp()->GetNtrack();
+ if (label>ntracks) return;
+ for (Int_t i=0;i<10;i++){
+ // if (label<0) break;
+ if (lab[i]==label) break;
+ if (lab[i]<0) {
+ lab[i]= label;
+ break;
+ }
+ }
+ }
+}
+
+
+//______________________________________________________________________
+void AliITSClusterFinder::
+FindCluster(Int_t k,Int_t maxz,AliBin *bins,Int_t &n,Int_t *idx) {
+ //------------------------------------------------------------
+ // returns an array of indices of digits belonging to the cluster
+ // (needed when the segmentation is not regular)
+ //------------------------------------------------------------
+ if (n<200) idx[n++]=bins[k].GetIndex();
+ bins[k].Use();
+
+ if (bins[k-maxz].IsNotUsed()) FindCluster(k-maxz,maxz,bins,n,idx);
+ if (bins[k-1 ].IsNotUsed()) FindCluster(k-1 ,maxz,bins,n,idx);
+ if (bins[k+maxz].IsNotUsed()) FindCluster(k+maxz,maxz,bins,n,idx);
+ if (bins[k+1 ].IsNotUsed()) FindCluster(k+1 ,maxz,bins,n,idx);
+ /*
+ if (bins[k-maxz-1].IsNotUsed()) FindCluster(k-maxz-1,maxz,bins,n,idx);
+ if (bins[k-maxz+1].IsNotUsed()) FindCluster(k-maxz+1,maxz,bins,n,idx);
+ if (bins[k+maxz-1].IsNotUsed()) FindCluster(k+maxz-1,maxz,bins,n,idx);
+ if (bins[k+maxz+1].IsNotUsed()) FindCluster(k+maxz+1,maxz,bins,n,idx);
+ */
+}
+
+//______________________________________________________________________
+Bool_t AliITSClusterFinder::IsMaximum(Int_t k,Int_t max,const AliBin *bins) {
+ //------------------------------------------------------------
+ //is this a local maximum ?
+ //------------------------------------------------------------
+ UShort_t q=bins[k].GetQ();
+ if (q==1023) return kFALSE;
+ if (bins[k-max].GetQ() > q) return kFALSE;
+ if (bins[k-1 ].GetQ() > q) return kFALSE;
+ if (bins[k+max].GetQ() > q) return kFALSE;
+ if (bins[k+1 ].GetQ() > q) return kFALSE;
+ if (bins[k-max-1].GetQ() > q) return kFALSE;
+ if (bins[k+max-1].GetQ() > q) return kFALSE;
+ if (bins[k+max+1].GetQ() > q) return kFALSE;
+ if (bins[k-max+1].GetQ() > q) return kFALSE;
+ return kTRUE;
+}
+
+//______________________________________________________________________
+void AliITSClusterFinder::
+FindPeaks(Int_t k,Int_t max,AliBin *b,Int_t *idx,UInt_t *msk,Int_t& n) {
+ //------------------------------------------------------------
+ //find local maxima
+ //------------------------------------------------------------
+ if (n<31)
+ if (IsMaximum(k,max,b)) {
+ idx[n]=k; msk[n]=(2<<n);
+ n++;
+ }
+ b[k].SetMask(0);
+ if (b[k-max].GetMask()&1) FindPeaks(k-max,max,b,idx,msk,n);
+ if (b[k-1 ].GetMask()&1) FindPeaks(k-1 ,max,b,idx,msk,n);
+ if (b[k+max].GetMask()&1) FindPeaks(k+max,max,b,idx,msk,n);
+ if (b[k+1 ].GetMask()&1) FindPeaks(k+1 ,max,b,idx,msk,n);
+}
+
+//______________________________________________________________________
+void AliITSClusterFinder::
+MarkPeak(Int_t k, Int_t max, AliBin *bins, UInt_t m) {
+ //------------------------------------------------------------
+ //mark this peak
+ //------------------------------------------------------------
+ UShort_t q=bins[k].GetQ();
+
+ bins[k].SetMask(bins[k].GetMask()|m);
+
+ if (bins[k-max].GetQ() <= q)
+ if ((bins[k-max].GetMask()&m) == 0) MarkPeak(k-max,max,bins,m);
+ if (bins[k-1 ].GetQ() <= q)
+ if ((bins[k-1 ].GetMask()&m) == 0) MarkPeak(k-1 ,max,bins,m);
+ if (bins[k+max].GetQ() <= q)
+ if ((bins[k+max].GetMask()&m) == 0) MarkPeak(k+max,max,bins,m);
+ if (bins[k+1 ].GetQ() <= q)
+ if ((bins[k+1 ].GetMask()&m) == 0) MarkPeak(k+1 ,max,bins,m);
+}
+
+//______________________________________________________________________
+void AliITSClusterFinder::
+MakeCluster(Int_t k,Int_t max,AliBin *bins,UInt_t m,AliITSRecPoint &c) {
+ //------------------------------------------------------------
+ //make cluster using digits of this peak
+ //------------------------------------------------------------
+ Float_t q=(Float_t)bins[k].GetQ();
+ Int_t i=k/max, j=k-i*max;
+
+ c.SetQ(c.GetQ()+q);
+ c.SetY(c.GetY()+i*q);
+ c.SetZ(c.GetZ()+j*q);
+ c.SetSigmaY2(c.GetSigmaY2()+i*i*q);
+ c.SetSigmaZ2(c.GetSigmaZ2()+j*j*q);
+
+ bins[k].SetMask(0xFFFFFFFE);
+
+ if (bins[k-max].GetMask() == m) MakeCluster(k-max,max,bins,m,c);
+ if (bins[k-1 ].GetMask() == m) MakeCluster(k-1 ,max,bins,m,c);
+ if (bins[k+max].GetMask() == m) MakeCluster(k+max,max,bins,m,c);
+ if (bins[k+1 ].GetMask() == m) MakeCluster(k+1 ,max,bins,m,c);
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff