-//$Id$
+// @(#) $Id$
// Author: Anders Vestbo <mailto:vestbo@fi.uib.no>
-//*-- Copyright © ASV
+//*-- Copyright © ALICE HLT Group
+
+/** \class AliL3HoughTransformer
+<pre>
+//_____________________________________________________________
+// AliL3HoughTransformer
+//
+// Hough transformation class
+//
+</pre>
+*/
#include "AliL3StandardIncludes.h"
#include "AliL3DigitData.h"
#include "AliL3HistogramAdaptive.h"
-#if GCCVERSION == 3
+#if __GNUC__ >= 3
using namespace std;
#endif
-//_____________________________________________________________
-// AliL3HoughTransformer
-//
-// Hough transformation class
-//
-
ClassImp(AliL3HoughTransformer)
AliL3HoughTransformer::AliL3HoughTransformer()
//Default constructor
fParamSpace = 0;
fDoMC = kFALSE;;
+ fEtaOverlap=kFALSE;
#ifdef do_mc
fTrackID = 0;
#endif
}
-AliL3HoughTransformer::AliL3HoughTransformer(Int_t slice,Int_t patch,Int_t n_eta_segments,Bool_t DoMC) : AliL3HoughBaseTransformer(slice,patch,n_eta_segments)
+AliL3HoughTransformer::AliL3HoughTransformer(Int_t slice,Int_t patch,Int_t netasegments,Bool_t DoEtaOverlap,Bool_t /*DoMC*/) : AliL3HoughBaseTransformer(slice,patch,netasegments)
{
//Normal constructor
fParamSpace = 0;
- if(DoMC)
- {
- if(patch==0)
- fDoMC = kTRUE;
- else
- fDoMC = kFALSE;
- }
+ fDoMC = kFALSE;
+ fEtaOverlap = DoEtaOverlap;
+ fDoMC=kFALSE;
#ifdef do_mc
fTrackID = 0;
#endif
AliL3HoughTransformer::~AliL3HoughTransformer()
{
+ // Dtor
DeleteHistograms();
#ifdef do_mc
if(fTrackID)
#endif
}
-//void AliL3HoughTransformer::Init(Int_t slice=0,Int_t patch=0,Int_t n_eta_segments=100){}
-
void AliL3HoughTransformer::DeleteHistograms()
{
+ // Clean up
if(!fParamSpace)
return;
for(Int_t i=0; i<GetNEtaSegments(); i++)
delete fParamSpace[i];
}
delete [] fParamSpace;
+ fParamSpace = 0;
+}
+
+void AliL3HoughTransformer::CreateHistograms(Float_t ptmin,Float_t ptmax,Float_t ptres,
+ Int_t nybin,Float_t psi)
+{
+ //Create histograms.
+ //_Only_ to be used in case of the adaptive histograms!
+ //phimax is given in radians!!
+
+ if(ptmin > ptmax)
+ {
+ cerr<<"AliL3HoughTransformer::CreateHistograms: Error in ptrange "<<ptmin<<" "<<ptmax<<endl;
+ return;
+ }
+ if(psi < 0)
+ {
+ cerr<<"AliL3HoughTransformer::CreateHistograms: Wrong psi-angle "<<psi<<endl;
+ return;
+ }
+
+ fParamSpace = new AliL3Histogram*[GetNEtaSegments()];
+ Char_t histname[256];
+ Int_t i;
+ for(i=0; i<GetNEtaSegments(); i++)
+ {
+ sprintf(histname,"paramspace_%d",i);
+ fParamSpace[i] = new AliL3HistogramAdaptive(histname,ptmin,ptmax,ptres,nybin,-psi,psi);
+ }
}
-void AliL3HoughTransformer::CreateHistograms(Int_t nxbin,Double_t pt_min,
- Int_t nybin,Double_t phimin,Double_t phimax)
+void AliL3HoughTransformer::CreateHistograms(Int_t nxbin,Float_t ptmin,
+ Int_t nybin,Float_t phimin,Float_t phimax)
{
//Create the histograms (parameter space).
//These are 2D histograms, span by kappa (curvature of track) and phi0 (emission angle with x-axis).
//The arguments give the range and binning;
//nxbin = #bins in kappa
//nybin = #bins in phi0
- //pt_min = mimium Pt of track (corresponding to maximum kappa)
- //phi_min = mimimum phi0 (degrees)
- //phi_max = maximum phi0 (degrees)
+ //ptmin = mimium Pt of track (corresponding to maximum kappa)
+ //phimin = mimimum phi0
+ //phimax = maximum phi0
- Double_t x = AliL3Transform::GetBFact()*AliL3Transform::GetBField()/pt_min;
- Double_t torad = AliL3Transform::Pi()/180;
- CreateHistograms(nxbin,-1.*x,x,nybin,phimin*torad,phimax*torad);
+ Double_t x = AliL3Transform::GetBFact()*AliL3Transform::GetBField()/ptmin;
+ //Double_t torad = AliL3Transform::Pi()/180;
+
+ CreateHistograms(nxbin,-1.*x,x,nybin,phimin/**torad*/,phimax/**torad*/);
}
-void AliL3HoughTransformer::CreateHistograms(Int_t nxbin,Double_t xmin,Double_t xmax,
- Int_t nybin,Double_t ymin,Double_t ymax)
+void AliL3HoughTransformer::CreateHistograms(Int_t nxbin,Float_t xmin,Float_t xmax,
+ Int_t nybin,Float_t ymin,Float_t ymax)
{
+ //Create the histograms (parameter space).
+ //nxbin = #bins in X
+ //nybin = #bins in Y
+ //xmin xmax ymin ymax = histogram limits in X and Y
fParamSpace = new AliL3Histogram*[GetNEtaSegments()];
for(Int_t i=0; i<GetNEtaSegments(); i++)
{
sprintf(histname,"paramspace_%d",i);
- //fParamSpace[i] = new AliL3HistogramAdaptive(histname,0.1,2,0.02,nybin,ymin,ymax);
+ //fParamSpace[i] = new AliL3HistogramAdaptive(histname,0.5,1.5,0.05,nybin,ymin,ymax);
fParamSpace[i] = new AliL3Histogram(histname,"",nxbin,xmin,xmax,nybin,ymin,ymax);
}
{
AliL3Histogram *hist = fParamSpace[0];
Int_t ncells = (hist->GetNbinsX()+2)*(hist->GetNbinsY()+2);
- cout<<"Allocating "<<GetNEtaSegments()*ncells*sizeof(TrackIndex)<<" bytes to fTrackID"<<endl;
- fTrackID = new TrackIndex*[GetNEtaSegments()];
+ cout<<"Transformer: Allocating "<<GetNEtaSegments()*ncells*sizeof(AliL3TrackIndex)<<" bytes to fTrackID"<<endl;
+ fTrackID = new AliL3TrackIndex*[GetNEtaSegments()];
for(Int_t i=0; i<GetNEtaSegments(); i++)
- fTrackID[i] = new TrackIndex[ncells];
+ fTrackID[i] = new AliL3TrackIndex[ncells];
}
#endif
}
for(Int_t i=0; i<GetNEtaSegments(); i++)
fParamSpace[i]->Reset();
+
#ifdef do_mc
if(fDoMC)
{
AliL3Histogram *hist = fParamSpace[0];
Int_t ncells = (hist->GetNbinsX()+2)*(hist->GetNbinsY()+2);
for(Int_t i=0; i<GetNEtaSegments(); i++)
- memset(fTrackID[i],0,ncells*sizeof(TrackIndex));
+ memset(fTrackID[i],0,ncells*sizeof(AliL3TrackIndex));
}
#endif
}
-Int_t AliL3HoughTransformer::GetEtaIndex(Double_t eta)
+Int_t AliL3HoughTransformer::GetEtaIndex(Double_t eta) const
{
//Return the histogram index of the corresponding eta.
return (Int_t)index;
}
-inline AliL3Histogram *AliL3HoughTransformer::GetHistogram(Int_t eta_index)
+void AliL3HoughTransformer::GetEtaIndexes(Double_t eta,Int_t *indexes) const
{
- if(!fParamSpace || eta_index >= GetNEtaSegments() || eta_index < 0)
+ //Return histogram indexes in case of overlapping etaslices.
+
+ Double_t etaslice = (GetEtaMax() - GetEtaMin())/GetNEtaSegments();
+ Int_t index = (Int_t)((eta-GetEtaMin())/etaslice);
+ if(index%2 == 0)
+ {
+ indexes[0] = index;
+ indexes[1] = index - 1;
+ }
+ else
+ {
+ indexes[0] = index - 1;
+ indexes[1] = index;
+ }
+}
+
+AliL3Histogram *AliL3HoughTransformer::GetHistogram(Int_t etaindex)
+{
+ // Return a pointer to the histogram which contains etaindex eta slice
+ if(!fParamSpace || etaindex >= GetNEtaSegments() || etaindex < 0)
return 0;
- if(!fParamSpace[eta_index])
+ if(!fParamSpace[etaindex])
return 0;
- return fParamSpace[eta_index];
+ return fParamSpace[etaindex];
}
-Double_t AliL3HoughTransformer::GetEta(Int_t eta_index,Int_t slice)
+Double_t AliL3HoughTransformer::GetEta(Int_t etaindex,Int_t /*slice*/) const
{
- Double_t eta_slice = (GetEtaMax()-GetEtaMin())/GetNEtaSegments();
- Double_t eta=(Double_t)((eta_index+0.5)*eta_slice);
+ // Return eta calculated in the middle of the eta slice
+ Double_t etaslice = (GetEtaMax()-GetEtaMin())/GetNEtaSegments();
+ Double_t eta=0;
+ if(fEtaOverlap)
+ {
+ Int_t index = etaindex + 1;
+ eta=(Double_t)((index)*etaslice);
+ }
+ else
+ eta=(Double_t)((etaindex+0.5)*etaslice);
return eta;
}
//Transform the input data with a circle HT.
//The function loops over all the data, and transforms each pixel with the equations:
//
- //kappa = 2/R*sin(phi - phi0)
+ //kappa = 2/r*sin(phi - phi0)
//
- //where R = sqrt(x*x +y*y), and phi = arctan(y/x)
+ //where r = sqrt(x*x +y*y), and phi = arctan(y/x)
//
//Each pixel then transforms into a curve in the (kappa,phi0)-space. In order to find
- //which histogram in which the pixel should be transformed, the eta-value is calcluated
+ //which histogram in which the pixel should be transformed, the eta-value is calculated
//and the proper histogram index is found by GetEtaIndex(eta).
UShort_t charge = digPt[j].fCharge;
UChar_t pad = digPt[j].fPad;
UShort_t time = digPt[j].fTime;
- if((Int_t)charge <= GetLowerThreshold() || (Int_t)charge > GetUpperThreshold())
+ if((Int_t)charge <= GetLowerThreshold())
continue;
+ if((Int_t)charge > GetUpperThreshold())
+ charge = GetUpperThreshold();
+
Int_t sector,row;
Float_t xyz[3];
-
+
//Transform data to local cartesian coordinates:
AliL3Transform::Slice2Sector(GetSlice(),i,sector,row);
AliL3Transform::Raw2Local(xyz,sector,row,(Int_t)pad,(Int_t)time);
-
+
//Calculate the eta:
Double_t eta = AliL3Transform::GetEta(xyz);
//Get the corresponding index, which determines which histogram to fill:
- Int_t eta_index = GetEtaIndex(eta);
- if(eta_index < 0 || eta_index >= GetNEtaSegments())
+ Int_t etaindex = GetEtaIndex(eta);
+
+ if(etaindex < 0 || etaindex >= GetNEtaSegments())
continue;
//Get the correct histogrampointer:
- AliL3Histogram *hist = fParamSpace[eta_index];
+ AliL3Histogram *hist = fParamSpace[etaindex];
if(!hist)
{
- printf("AliL3HoughTransformer::TransformCircle : Error getting histogram in index %d\n",eta_index);
+ cerr<<"AliL3HoughTransformer::TransformCircle : Error getting histogram in index "<<etaindex<<endl;
continue;
}
-
+
//Do the transformation:
- Float_t R = sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
+ Float_t r = sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
Float_t phi = AliL3Transform::GetPhi(xyz);
+
//Fill the histogram along the phirange
for(Int_t b=hist->GetFirstYbin(); b<=hist->GetLastYbin(); b++)
{
Float_t phi0 = hist->GetBinCenterY(b);
- Float_t kappa = 2*sin(phi - phi0)/R;
- hist->Fill(kappa,phi0,1);//charge);
+ Float_t kappa = 2*sin(phi - phi0)/r;
+ //hist->Fill(kappa,phi0,(int)rint(log((Float_t)charge)));
+ hist->Fill(kappa,phi0,charge);
+ //hist->Fill(kappa,phi0,1);
#ifdef do_mc
if(fDoMC)
{
if(label < 0) break;
UInt_t c;
for(c=0; c<MaxTrack; c++)
- if(fTrackID[eta_index][bin].fLabel[c] == label || fTrackID[eta_index][bin].fNHits[c] == 0)
+ if(fTrackID[etaindex][bin].fLabel[c] == label || fTrackID[etaindex][bin].fNHits[c] == 0)
break;
if(c == MaxTrack-1) cerr<<"AliL3HoughTransformer::TransformCircle : Array reached maximum!! "<<c<<endl;
- fTrackID[eta_index][bin].fLabel[c] = label;
- fTrackID[eta_index][bin].fNHits[c]++;
+ fTrackID[etaindex][bin].fLabel[c] = label;
+ fTrackID[etaindex][bin].fNHits[c]++;
}
}
#endif
}
}
-void AliL3HoughTransformer::TransformCircleC(Int_t row_range)
+struct AliL3Digit {
+ Int_t fRow; // Digit padrow
+ Double_t fR; // Digit radius in local coordinate system
+ Double_t fPhi; // Digit Phi angle in local coordinate system
+ Int_t fCharge; // Digit charge
+ AliL3Digit *fNext; // Next digit
+};
+
+struct AliL3EtaContainer {
+ AliL3Digit *fFirst; //First digit
+ AliL3Digit *fLast; //Last digit
+};
+
+void AliL3HoughTransformer::TransformCircleC(Int_t *rowrange,Int_t every)
{
//Circle transform, using combinations of every 2 points lying
//on different padrows and within the same etaslice.
if(!tempPt)
LOG(AliL3Log::kError,"AliL3HoughTransformer::TransformCircleC","Data")
<<"No input data "<<ENDLOG;
-
+
+ Int_t minrow = AliL3Transform::GetFirstRow(GetPatch());
+ Int_t maxrow = AliL3Transform::GetLastRow(GetPatch());
+ if(rowrange)
+ {
+ minrow = rowrange[0];
+ maxrow = rowrange[1];
+ if(minrow < AliL3Transform::GetFirstRow(GetPatch()) || minrow >= AliL3Transform::GetLastRow(GetPatch()))
+ minrow = AliL3Transform::GetFirstRow(GetPatch());
+ if(maxrow < AliL3Transform::GetFirstRow(GetPatch()) || maxrow >= AliL3Transform::GetLastRow(GetPatch()))
+ maxrow = AliL3Transform::GetLastRow(GetPatch());
+ if(minrow > maxrow || maxrow==minrow)
+ {
+ cerr<<"AliL3HoughTransformer::TransformCircleC : Bad row range "<<minrow<<" "<<maxrow<<endl;
+ return;
+ }
+ }
+ else
+ {
+ minrow = AliL3Transform::GetFirstRow(GetPatch());
+ maxrow = AliL3Transform::GetLastRow(GetPatch());
+ }
+
Int_t counter=0;
for(Int_t i=AliL3Transform::GetFirstRow(GetPatch()); i<=AliL3Transform::GetLastRow(GetPatch()); i++)
{
AliL3MemHandler::UpdateRowPointer(tempPt);
}
- struct Digit {
- Int_t row;
- Double_t r;
- Double_t phi;
- Int_t eta_index;
- Int_t charge;
- Int_t trackID[3];
- };
-
- Digit *digits = new Digit[counter];
- cout<<"Allocating "<<counter*sizeof(Digit)<<" bytes to digitsarray"<<endl;
+ Int_t bound = (GetNEtaSegments()+1)*(AliL3Transform::GetNRows(GetPatch())+1);
+ AliL3EtaContainer *etaPt = new AliL3EtaContainer[bound];
+ memset(etaPt,0,bound*sizeof(AliL3EtaContainer));
- Int_t total_digits=counter;
- Int_t sector,row,tot_charge,pad,time,charge;
- Double_t r1,r2,phi1,phi2,eta,kappa,phi_0;
+ AliL3Digit *digits = new AliL3Digit[counter];
+ cout<<"Allocating "<<counter*sizeof(AliL3Digit)<<" bytes to digitsarray"<<endl;
+ memset(digits,0,counter*sizeof(AliL3Digit));
+
+ Int_t sector,row,totcharge,pad,time,charge;
+ Double_t r1,r2,phi1,phi2,eta,kappa,phi0;
Float_t xyz[3];
counter=0;
tempPt = GetDataPointer();
+ cout<<"Calculating digits in patch "<<GetPatch()<<endl;
for(Int_t i=AliL3Transform::GetFirstRow(GetPatch()); i<=AliL3Transform::GetLastRow(GetPatch()); i++)
{
AliL3DigitData *digPt = tempPt->fDigitData;
AliL3Transform::Slice2Sector(GetSlice(),i,sector,row);
AliL3Transform::Raw2Local(xyz,sector,row,(Int_t)pad,(Int_t)time);
eta = AliL3Transform::GetEta(xyz);
- digits[counter].row = i;
- digits[counter].r = sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
- digits[counter].phi = atan2(xyz[1],xyz[0]);
- digits[counter].eta_index = GetEtaIndex(eta);
- digits[counter].charge = charge;
-#ifdef do_mc
- if(fDoMC)
+
+ digits[counter].fRow = i;
+ digits[counter].fR = sqrt(xyz[0]*xyz[0] + xyz[1]*xyz[1]);
+ digits[counter].fPhi = atan2(xyz[1],xyz[0]);
+ digits[counter].fCharge = charge;
+
+ if(!fEtaOverlap)
{
- digits[counter].trackID[0] = digPt[di].fTrackID[0];
- digits[counter].trackID[1] = digPt[di].fTrackID[1];
- digits[counter].trackID[2] = digPt[di].fTrackID[2];
+ Int_t etaindex = GetEtaIndex(eta);
+
+ Int_t index = (GetNEtaSegments()+1)*(i-AliL3Transform::GetFirstRow(GetPatch())) + etaindex;
+
+ if(index > 0 && index < bound)
+ {
+ if(etaPt[index].fFirst == 0)
+ etaPt[index].fFirst = &digits[counter];
+ else
+ (etaPt[index].fLast)->fNext = &digits[counter];
+ etaPt[index].fLast = &digits[counter];
+ }
}
-#endif
+ else
+ {
+ Int_t etaindex[2];
+ GetEtaIndexes(eta,etaindex);
+ Int_t index[2];
+ index[0] = (GetNEtaSegments()+1)*(i-AliL3Transform::GetFirstRow(GetPatch())) + etaindex[0];
+ index[1] = (GetNEtaSegments()+1)*(i-AliL3Transform::GetFirstRow(GetPatch())) + etaindex[1];
+ if(index[0] == index[1])
+ {
+ cerr<<"Same etaindexes "<<index[0]<<" "<<index[1]<<endl;
+ exit(5);
+ }
+
+ Int_t ind = index[0];
+ if(ind > 0 && ind < bound)
+ {
+ if(etaPt[ind].fFirst == 0)
+ etaPt[ind].fFirst = &digits[counter];
+ else
+ (etaPt[ind].fLast)->fNext = &digits[counter];
+ etaPt[ind].fLast = &digits[counter];
+ }
+
+ ind = index[1];
+ if(ind > 0 && ind < bound)
+ {
+ if(etaPt[ind].fFirst == 0)
+ etaPt[ind].fFirst = &digits[counter];
+ else
+ (etaPt[ind].fLast)->fNext = &digits[counter];
+ etaPt[ind].fLast = &digits[counter];
+ }
+ }
+
counter++;
}
AliL3MemHandler::UpdateRowPointer(tempPt);
}
- for(Int_t i=0; i<total_digits; i++)
+ cout<<"Doing the combinatorics"<<endl;
+
+ AliL3Digit *dPt1,*dPt2;
+
+ for(Int_t e=0; e<GetNEtaSegments(); e++)
{
- if(digits[i].eta_index < 0 || digits[i].eta_index >= GetNEtaSegments()) continue;
- Int_t ind = digits[i].eta_index;
-
- for(Int_t j=i+1; j<total_digits; j++)
+ for(Int_t i=minrow; i<=maxrow; i+=every)
{
- if(digits[i].row == digits[j].row) continue;
- if(digits[i].eta_index != digits[j].eta_index) continue;
- if(digits[i].row + row_range < digits[j].row) break;
+ Int_t index1 = (GetNEtaSegments()+1)*(i-AliL3Transform::GetFirstRow(GetPatch())) + e;
- //Get the correct histogrampointer:
- AliL3Histogram *hist = fParamSpace[ind];
- if(!hist)
+ for(dPt1 = (AliL3Digit*)etaPt[index1].fFirst; dPt1 != 0; dPt1 = (AliL3Digit*)dPt1->fNext)
{
- printf("AliL3HoughTransformer::TransformCircleC() : No histogram at index %d\n",ind);
- continue;
- }
-
- r1 = digits[i].r;
- phi1 = digits[i].phi;
- r2 = digits[j].r;
- phi2 = digits[j].phi;
- phi_0 = atan( (r2*sin(phi1)-r1*sin(phi2))/(r2*cos(phi1)-r1*cos(phi2)) );
- kappa = 2*sin(phi2-phi_0)/r2;
- tot_charge = digits[i].charge + digits[j].charge;
- hist->Fill(kappa,phi_0,1);//tot_charge);
-#ifdef do_mc
- if(fDoMC)
- {
- Int_t bin = hist->FindBin(kappa,phi_0);
- for(Int_t l=0; l<3; l++)
+ for(Int_t j=i+every; j<=maxrow; j+=every)
{
- for(Int_t m=0; m<3; m++)
+ Int_t index2 = (GetNEtaSegments()+1)*(j-AliL3Transform::GetFirstRow(GetPatch())) + e;
+
+ for(dPt2 = (AliL3Digit*)etaPt[index2].fFirst; dPt2 != 0; dPt2 = (AliL3Digit*)dPt2->fNext)
{
- if(digits[i].trackID[l] == digits[j].trackID[m])
+ if(dPt1->fRow == dPt2->fRow)
{
- Int_t label = digits[i].trackID[l];
- if(label < 0) continue;
- UInt_t c;
- for(c=0; c<MaxTrack; c++)
- if(fTrackID[ind][bin].fLabel[c] == label || fTrackID[ind][bin].fNHits[c] == 0)
- break;
- if(c == MaxTrack-1) cerr<<"AliL3HoughTransformer::TransformCircleC : Array reached maximum!! "<<c<<endl;
- fTrackID[ind][bin].fLabel[c] = label;
- fTrackID[ind][bin].fNHits[c]++;
+ cerr<<"same row; indexes "<<index1<<" "<<index2<<endl;
+ exit(5);
}
+
+ //Get the correct histogrampointer:
+ AliL3Histogram *hist = fParamSpace[e];
+ if(!hist)
+ {
+ printf("AliL3HoughTransformer::TransformCircleC() : No histogram at index %d\n",i);
+ continue;
+ }
+
+ //Do the transform:
+ r1 = dPt1->fR;
+ phi1 = dPt1->fPhi;
+ r2 = dPt2->fR;
+ phi2 = dPt2->fPhi;
+ phi0 = atan( (r2*sin(phi1)-r1*sin(phi2))/(r2*cos(phi1)-r1*cos(phi2)) );
+ kappa = 2*sin(phi2-phi0)/r2;
+ totcharge = dPt1->fCharge + dPt2->fCharge;
+ hist->Fill(kappa,phi0,totcharge);
+
}
}
}
-#endif
}
}
+
+ cout<<"done"<<endl;
+ delete [] etaPt;
delete [] digits;
+
}
-void AliL3HoughTransformer::TransformLine()
+void AliL3HoughTransformer::TransformLine(Int_t *rowrange,Float_t *phirange)
{
//Do a line transform on the data.
-
+
AliL3DigitRowData *tempPt = GetDataPointer();
if(!tempPt)
{
<<"No input data "<<ENDLOG;
return;
}
-
- for(Int_t i=AliL3Transform::GetFirstRow(GetPatch()); i<=AliL3Transform::GetLastRow(GetPatch()); i++)
+
+ Int_t minrow = AliL3Transform::GetFirstRow(GetPatch());
+ Int_t maxrow = AliL3Transform::GetLastRow(GetPatch());
+ if(rowrange)
+ {
+ minrow = rowrange[0];
+ maxrow = rowrange[1];
+ if(minrow < AliL3Transform::GetFirstRow(GetPatch()) || minrow >= AliL3Transform::GetLastRow(GetPatch()))
+ minrow = AliL3Transform::GetFirstRow(GetPatch());
+ if(maxrow < AliL3Transform::GetFirstRow(GetPatch()) || maxrow >= AliL3Transform::GetLastRow(GetPatch()))
+ maxrow = AliL3Transform::GetLastRow(GetPatch());
+ if(minrow > maxrow || maxrow==minrow)
+ {
+ cerr<<"AliL3HoughTransformer::TransformCircleC : Bad row range "<<minrow<<" "<<maxrow<<endl;
+ return;
+ }
+ }
+
+ for(Int_t i=minrow; i<=maxrow; i++)
{
AliL3DigitData *digPt = tempPt->fDigitData;
if(i != (Int_t)tempPt->fRow)
Float_t xyz[3];
AliL3Transform::Slice2Sector(GetSlice(),i,sector,row);
AliL3Transform::Raw2Local(xyz,sector,row,(Int_t)pad,(Int_t)time);
+
+ if(phirange)
+ {
+ Float_t phi = AliL3Transform::GetPhi(xyz);
+ if(phi < phirange[0] || phi > phirange[1])
+ continue;
+ }
Float_t eta = AliL3Transform::GetEta(xyz);
- Int_t eta_index = GetEtaIndex(eta);//(Int_t)(eta/etaslice);
- if(eta_index < 0 || eta_index >= GetNEtaSegments())
+ Int_t etaindex = GetEtaIndex(eta);//(Int_t)(eta/etaslice);
+ if(etaindex < 0 || etaindex >= GetNEtaSegments())
continue;
+ xyz[0] = xyz[0] - AliL3Transform::Row2X(minrow);
+
//Get the correct histogram:
- AliL3Histogram *hist = fParamSpace[eta_index];
+ AliL3Histogram *hist = fParamSpace[etaindex];
if(!hist)
{
- printf("AliL3HoughTransformer::TransformLine : Error getting histogram in index %d\n",eta_index);
+ printf("AliL3HoughTransformer::TransformLine : Error getting histogram in index %d\n",etaindex);
continue;
}
for(Int_t xbin=hist->GetFirstXbin(); xbin<hist->GetLastXbin(); xbin++)
}
-Int_t AliL3HoughTransformer::GetTrackID(Int_t eta_index,Double_t kappa,Double_t psi)
+struct AliL3LDigit {
+ Int_t fRow; // Digit rowpad
+ Int_t fCharge; // Digit charge
+ Float_t fY; // Y position of the digit in the local coor system
+ AliL3LDigit *fNext; // Next digit
+};
+struct AliL3LEtaContainer {
+ AliL3LDigit *fFirst; //First digit
+ AliL3LDigit *fLast; //Last digit
+};
+void AliL3HoughTransformer::TransformLineC(Int_t *rowrange,Float_t *phirange)
+{
+ //Circle transform ??
+ AliL3DigitRowData *tempPt = GetDataPointer();
+ if(!tempPt)
+ LOG(AliL3Log::kError,"AliL3HoughTransformer::TransformCircleC","Data")
+ <<"No input data "<<ENDLOG;
+
+
+ Int_t counter=0;
+ for(Int_t i=AliL3Transform::GetFirstRow(GetPatch()); i<=AliL3Transform::GetLastRow(GetPatch()); i++)
+ {
+ counter += tempPt->fNDigit;
+ AliL3MemHandler::UpdateRowPointer(tempPt);
+ }
+
+ Int_t bound = (GetNEtaSegments()+1)*(AliL3Transform::GetNRows(GetPatch())+1);
+ AliL3LEtaContainer *etaPt = new AliL3LEtaContainer[bound];
+ memset(etaPt,0,bound*sizeof(AliL3LEtaContainer));
+
+ AliL3LDigit *digits = new AliL3LDigit[counter];
+ cout<<"Allocating "<<counter*sizeof(AliL3LDigit)<<" bytes to digitsarray"<<endl;
+ memset(digits,0,counter*sizeof(AliL3LDigit));
+
+ Int_t sector,row;
+ Float_t xyz[3];
+
+ counter=0;
+ tempPt = GetDataPointer();
+
+ cout<<"Calculating digits in patch "<<GetPatch()<<endl;
+ for(Int_t i=AliL3Transform::GetFirstRow(GetPatch()); i<=AliL3Transform::GetLastRow(GetPatch()); i++)
+ {
+ AliL3DigitData *digPt = tempPt->fDigitData;
+ for(UInt_t di=0; di<tempPt->fNDigit; di++)
+ {
+ Int_t charge = digPt[di].fCharge;
+ Int_t pad = digPt[di].fPad;
+ Int_t time = digPt[di].fTime;
+ AliL3Transform::Slice2Sector(GetSlice(),i,sector,row);
+ AliL3Transform::Raw2Local(xyz,sector,row,(Int_t)pad,(Int_t)time);
+ Double_t eta = AliL3Transform::GetEta(xyz);
+
+ Float_t phi = atan2(xyz[1],xyz[0]);
+ if(phi < phirange[0] || phi > phirange[1]) continue;
+
+ digits[counter].fRow = i;
+ digits[counter].fY = xyz[1];
+ digits[counter].fCharge = charge;
+
+ Int_t etaindex = GetEtaIndex(eta);
+ Int_t index = (GetNEtaSegments()+1)*(i-AliL3Transform::GetFirstRow(GetPatch())) + etaindex;
+
+ if(index > 0 && index < bound)
+ {
+ if(etaPt[index].fFirst == 0)
+ etaPt[index].fFirst = &digits[counter];
+ else
+ (etaPt[index].fLast)->fNext = &digits[counter];
+ etaPt[index].fLast = &digits[counter];
+ }
+ counter++;
+ }
+ AliL3MemHandler::UpdateRowPointer(tempPt);
+ }
+
+ cout<<"Doing the combinatorics"<<endl;
+
+ AliL3LDigit *dPt1,*dPt2;
+
+ for(Int_t e=0; e<GetNEtaSegments(); e++)
+ {
+ for(Int_t i=rowrange[0]; i<=rowrange[1]; i++)
+ {
+ Int_t index1 = (GetNEtaSegments()+1)*(i-AliL3Transform::GetFirstRow(GetPatch())) + e;
+
+ for(dPt1 = (AliL3LDigit*)etaPt[index1].fFirst; dPt1 != 0; dPt1 = (AliL3LDigit*)dPt1->fNext)
+ {
+ for(Int_t j=i+1; j<=rowrange[1]; j++)
+ {
+ Int_t index2 = (GetNEtaSegments()+1)*(j-AliL3Transform::GetFirstRow(GetPatch())) + e;
+
+ for(dPt2 = (AliL3LDigit*)etaPt[index2].fFirst; dPt2 != 0; dPt2 = (AliL3LDigit*)dPt2->fNext)
+ {
+ if(dPt1->fRow == dPt2->fRow)
+ {
+ cerr<<"same row; indexes "<<index1<<" "<<index2<<endl;
+ exit(5);
+ }
+
+ //Get the correct histogrampointer:
+ AliL3Histogram *hist = fParamSpace[e];
+ if(!hist)
+ {
+ printf("AliL3HoughTransformer::TransformCircleC() : No histogram at index %d\n",i);
+ continue;
+ }
+
+ //Do the transform:
+ float x1 = AliL3Transform::Row2X(dPt1->fRow) - AliL3Transform::Row2X(rowrange[0]);
+ float x2 = AliL3Transform::Row2X(dPt2->fRow) - AliL3Transform::Row2X(rowrange[0]);
+ float y1 = dPt1->fY;
+ float y2 = dPt2->fY;
+ float theta = atan2(x2-x1,y1-y2);
+ float rho = x1*cos(theta)+y1*sin(theta);
+ hist->Fill(theta,rho,1);//dPt1->charge+dPt2->charge);
+ }
+ }
+ }
+ }
+ }
+
+ cout<<"done"<<endl;
+ delete [] etaPt;
+ delete [] digits;
+}
+
+#ifdef do_mc
+Int_t AliL3HoughTransformer::GetTrackID(Int_t etaindex,Double_t kappa,Double_t psi) const
{
+ // Returns the MC label for a given peak found in the Hough space
if(!fDoMC)
{
cerr<<"AliL3HoughTransformer::GetTrackID : Flag switched off"<<endl;
return -1;
}
-#ifdef do_mc
- if(eta_index < 0 || eta_index > GetNEtaSegments())
+ if(etaindex < 0 || etaindex > GetNEtaSegments())
{
- cerr<<"AliL3HoughTransformer::GetTrackID : Wrong etaindex "<<eta_index<<endl;
+ cerr<<"AliL3HoughTransformer::GetTrackID : Wrong etaindex "<<etaindex<<endl;
return -1;
}
- AliL3Histogram *hist = fParamSpace[eta_index];
+ AliL3Histogram *hist = fParamSpace[etaindex];
Int_t bin = hist->FindBin(kappa,psi);
Int_t label=-1;
Int_t max=0;
for(UInt_t i=0; i<MaxTrack; i++)
{
- Int_t nhits=fTrackID[eta_index][bin].fNHits[i];
+ Int_t nhits=fTrackID[etaindex][bin].fNHits[i];
if(nhits == 0) break;
if(nhits > max)
{
max = nhits;
- label = fTrackID[eta_index][bin].fLabel[i];
+ label = fTrackID[etaindex][bin].fLabel[i];
}
}
+ //nhits = max;
return label;
-#endif
+#else
+ Int_t AliL3HoughTransformer::GetTrackID(Int_t /*etaindex*/,Double_t /*kappa*/,Double_t /*psi*/) const
+{
+ // Returns the MC label for a given peak found in the Hough space
+ if(!fDoMC)
+ {
+ cerr<<"AliL3HoughTransformer::GetTrackID : Flag switched off"<<endl;
+ return -1;
+ }
+
cout<<"AliL3HoughTransformer::GetTrackID : Compile with do_mc flag!"<<endl;
return -1;
+#endif
}