3 // Author: Anders Vestbo <mailto:vestbo@fi.uib.no>
4 //*-- Copyright © ASV
7 #include "AliL3Logging.h"
8 #include "AliL3Histogram.h"
10 //_____________________________________________________________
15 ClassImp(AliL3Histogram)
17 AliL3Histogram::AliL3Histogram()
39 AliL3Histogram::AliL3Histogram(Char_t *name,Char_t *id,
40 Int_t nxbin,Double_t xmin,Double_t xmax,
41 Int_t nybin,Double_t ymin,Double_t ymax)
47 fNcells = (nxbin+2)*(nybin+2);
63 fContent = new Int_t[fNcells];
67 AliL3Histogram::~AliL3Histogram()
80 void AliL3Histogram::Reset()
83 for(Int_t i=0; i<fNcells; i++)
88 void AliL3Histogram::Fill(Double_t x,Double_t y,Int_t weight)
90 Int_t bin = FindBin(x,y);
91 AddBinContent(bin,weight);
95 Int_t AliL3Histogram::FindBin(Double_t x,Double_t y)
98 Int_t xbin = FindXbin(x);
99 Int_t ybin = FindYbin(y);
101 return GetBin(xbin,ybin);
104 Int_t AliL3Histogram::FindXbin(Double_t x)
106 if(x < fXmin || x > fXmax)
109 return 1 + (Int_t)(fNxbins*(x-fXmin)/(fXmax-fXmin));
113 Int_t AliL3Histogram::FindYbin(Double_t y)
115 if(y < fYmin || y > fYmax)
118 return 1 + (Int_t)(fNybins*(y-fYmin)/(fYmax-fYmin));
122 Int_t AliL3Histogram::GetBin(Int_t xbin,Int_t ybin)
124 if(xbin < 0 || xbin > GetLastXbin())
126 LOG(AliL3Log::kError,"AliL3Histogram::GetBin","array")<<AliL3Log::kDec<<
127 "xbin out of range "<<xbin<<ENDLOG;
130 if(ybin < 0 || ybin > GetLastYbin())
132 LOG(AliL3Log::kError,"AliL3Histogram::Getbin","array")<<AliL3Log::kDec<<
133 "ybin out of range "<<xbin<<ENDLOG;
137 return xbin + ybin*(fNxbins+2);
140 Int_t AliL3Histogram::GetBinContent(Int_t bin)
144 LOG(AliL3Log::kError,"AliL3Histogram::GetBinContent","array")<<AliL3Log::kDec<<
145 "bin out of range "<<bin<<ENDLOG;
149 if(fContent[bin] < fThreshold)
151 return fContent[bin];
154 void AliL3Histogram::SetBinContent(Int_t xbin,Int_t ybin,Int_t value)
156 Int_t bin = GetBin(xbin,ybin);
159 SetBinContent(bin,value);
162 void AliL3Histogram::SetBinContent(Int_t bin,Int_t value)
167 LOG(AliL3Log::kError,"AliL3Histogram::SetBinContent","array")<<AliL3Log::kDec<<
168 "bin out of range "<<bin<<ENDLOG;
177 void AliL3Histogram::AddBinContent(Int_t xbin,Int_t ybin,Int_t weight)
179 Int_t bin = GetBin(xbin,ybin);
182 AddBinContent(bin,weight);
186 void AliL3Histogram::AddBinContent(Int_t bin,Int_t weight)
188 if(bin < 0 || bin > fNcells)
190 LOG(AliL3Log::kError,"AliL3Histogram::AddBinContent","array")<<AliL3Log::kDec<<
191 "bin-value out of range "<<bin<<ENDLOG;
197 fContent[bin] += weight;
200 void AliL3Histogram::Add(AliL3Histogram *h1,Double_t weight)
202 //Adding two histograms. Should be identical.
206 LOG(AliL3Log::kError,"AliL3Histogram::Add","Pointer")<<
207 "Attempting to add a non-existing histogram"<<ENDLOG;
211 if(h1->GetNbinsX()!=fNxbins || h1->GetNbinsY()!=fNybins)
213 LOG(AliL3Log::kError,"AliL3Histogram::Add","array")<<
214 "Mismatch in the number of bins "<<ENDLOG;
217 if(h1->GetFirstXbin()!=fFirstXbin || h1->GetLastXbin()!=fLastXbin ||
218 h1->GetFirstYbin()!=fFirstYbin || h1->GetLastYbin()!=fLastYbin)
220 LOG(AliL3Log::kError,"AliL3Histogram::Add","array")<<
221 "Mismatch in the bin numbering "<<ENDLOG;
225 for(Int_t bin=0; bin<fNcells; bin++)
226 fContent[bin] += h1->GetBinContent(bin);
228 fEntries += h1->GetNEntries();
231 Double_t AliL3Histogram::GetBinCenterX(Int_t xbin)
234 Double_t binwidth = (fXmax - fXmin) / fNxbins;
235 return fXmin + (xbin-1) * binwidth + 0.5*binwidth;
239 Double_t AliL3Histogram::GetBinCenterY(Int_t ybin)
242 Double_t binwidth = (fYmax - fYmin) / fNybins;
243 return fYmin + (ybin-1) * binwidth + 0.5*binwidth;
248 void AliL3Histogram::Draw(Char_t *option)
253 for(Int_t bin=0; bin<fNcells; bin++)
255 fRootHisto->AddBinContent(bin,GetBinContent(bin));
258 fRootHisto->SetStats(kFALSE);
259 fRootHisto->Draw(option);
262 cerr<<"AliL3Histogram::Draw : You need to compile with ROOT in order to draw histogram"<<endl;
266 void AliL3Histogram::CreateRootHisto()
269 fRootHisto = new TH2F(fName,"",fNxbins,fXmin,fXmax,fNybins,fYmin,fYmax);
272 cerr<<"AliL3Histogram::CreateRootHisto : You need to compile with ROOT in order to create ROOT histogram"<<endl;