1 //Author: Anders Strand Vestbo
2 //Last Modified: 28.6.01
4 #include "AliL3Logging.h"
5 #include "AliL3Histogram.h"
9 ClassImp(AliL3Histogram)
11 AliL3Histogram::AliL3Histogram()
25 AliL3Histogram::AliL3Histogram(Char_t *name,Char_t *id,Int_t nxbin,Double_t xmin,Double_t xmax,Int_t nybin,Double_t ymin,Double_t ymax) : TH2F(name,id,nxbin,xmin,xmax,nybin,ymin,ymax)
31 fNcells = (nxbin+2)*(nybin+2);
39 fContent = new Double_t[fNcells];
43 AliL3Histogram::~AliL3Histogram()
51 void AliL3Histogram::Reset()
54 for(Int_t i=0; i<fNcells; i++)
59 void AliL3Histogram::Fill(Double_t x,Double_t y,Int_t weight)
61 Int_t bin = FindBin(x,y);
62 AddBinContent(bin,weight);
66 Int_t AliL3Histogram::FindBin(Double_t x,Double_t y)
68 if(x < fXmin || x > fXmax)
70 LOG(AliL3Log::kError,"AliL3Histogram::FindBin","array")<<AliL3Log::kDec<<
71 "x-value out of range "<<x<<ENDLOG;
74 if(y < fYmin || y > fYmax)
76 LOG(AliL3Log::kError,"AliL3Histogram::FindBin","array")<<AliL3Log::kDec<<
77 "y-value out of range "<<y<<ENDLOG;
81 Int_t xbin = 1 + (Int_t)(fNxbins*(x-fXmin)/(fXmax-fXmin));
82 Int_t ybin = 1 + (Int_t)(fNybins*(y-fYmin)/(fYmax-fYmin));
84 return xbin + ybin*(fNxbins+2);
88 void AliL3Histogram::AddBinContent(Int_t xbin,Int_t ybin,Int_t weight)
90 Int_t bin = xbin + ybin*(fNxbins+2);
91 AddBinContent(bin,weight);
95 void AliL3Histogram::AddBinContent(Int_t bin,Int_t weight)
97 if(bin < 0 || bin > fNcells)
99 LOG(AliL3Log::kError,"AliL3Histogram::AddBinContent","array")<<AliL3Log::kDec<<
100 "bin-value out of range "<<bin<<ENDLOG;
104 fContent[bin] += weight;
107 Double_t AliL3Histogram::GetXBinCenter(Int_t xbin)
110 Double_t binwidth = (fXmax - fXmin) / fNxbins;
111 return fXmin + (xbin-1) * binwidth + 0.5*binwidth;
115 Double_t AliL3Histogram::GetYBinCenter(Int_t ybin)
118 Double_t binwidth = (fYmax - fYmin) / fNybins;
119 return fYmin + (ybin-1) * binwidth + 0.5*binwidth;
124 void AliL3Histogram::Draw()
126 TH2F *hist = new TH2F(fName,"",fNxbins,fXmin,fXmax,fNybins,fYmin,fYmax);
127 for(Int_t bin=0; bin<fNcells; bin++)
129 hist->AddBinContent(bin,fContent[bin]);
130 if(fContent[bin]!=0) printf("bin %d\n",bin);
132 //printf("ncells %d %d\n",(hist->GetNbinsX()+2)*(hist->GetNbinsY()+2),fNcells);
133 printf("maxbin %d\n",hist->GetMaximumBin());