3 // Author: Anders Vestbo <mailto:vestbo@fi.uib.no>
4 //*-- Copyright © ASV
6 #include "AliL3StandardIncludes.h"
8 #include "AliL3Logging.h"
9 #include "AliL3Histogram.h"
15 //_____________________________________________________________
20 ClassImp(AliL3Histogram)
22 AliL3Histogram::AliL3Histogram()
45 AliL3Histogram::AliL3Histogram(Char_t *name,Char_t *id,
46 Int_t nxbin,Double_t xmin,Double_t xmax,
47 Int_t nybin,Double_t ymin,Double_t ymax)
53 fNcells = (nxbin+2)*(nybin+2);
58 fBinwidthX = (fXmax - fXmin) / fNxbins;
59 fBinwidthY = (fYmax - fYmin) / fNybins;
71 fContent = new Int_t[fNcells];
75 AliL3Histogram::~AliL3Histogram()
86 void AliL3Histogram::Reset()
89 for(Int_t i=0; i<fNcells; i++) fContent[i] = 0;
94 void AliL3Histogram::Fill(Double_t x,Double_t y,Int_t weight)
96 Int_t bin = FindBin(x,y);
97 AddBinContent(bin,weight);
100 Int_t AliL3Histogram::FindBin(Double_t x,Double_t y)
102 Int_t xbin = FindXbin(x);
103 Int_t ybin = FindYbin(y);
105 return GetBin(xbin,ybin);
108 Int_t AliL3Histogram::FindXbin(Double_t x)
110 if(x < fXmin || x > fXmax)
113 return 1 + (Int_t)(fNxbins*(x-fXmin)/(fXmax-fXmin));
116 Int_t AliL3Histogram::FindYbin(Double_t y)
118 if(y < fYmin || y > fYmax)
121 return 1 + (Int_t)(fNybins*(y-fYmin)/(fYmax-fYmin));
124 Int_t AliL3Histogram::GetBin(Int_t xbin,Int_t ybin)
126 if(xbin < 0 || xbin > GetLastXbin())
128 LOG(AliL3Log::kError,"AliL3Histogram::GetBin","array")<<AliL3Log::kDec<<
129 "xbin out of range "<<xbin<<ENDLOG;
133 if(ybin < 0 || ybin > GetLastYbin())
135 LOG(AliL3Log::kError,"AliL3Histogram::Getbin","array")<<AliL3Log::kDec<<
136 "ybin out of range "<<xbin<<ENDLOG;
140 return xbin + ybin*(fNxbins+2);
143 Int_t AliL3Histogram::GetBinContent(Int_t bin)
147 LOG(AliL3Log::kError,"AliL3Histogram::GetBinContent","array")<<AliL3Log::kDec<<
148 "bin out of range "<<bin<<ENDLOG;
152 if(fContent[bin] < fThreshold)
154 return fContent[bin];
157 void AliL3Histogram::SetBinContent(Int_t xbin,Int_t ybin,Int_t value)
159 Int_t bin = GetBin(xbin,ybin);
162 SetBinContent(bin,value);
165 void AliL3Histogram::SetBinContent(Int_t bin,Int_t value)
170 LOG(AliL3Log::kError,"AliL3Histogram::SetBinContent","array")<<AliL3Log::kDec<<
171 "bin out of range "<<bin<<ENDLOG;
180 void AliL3Histogram::AddBinContent(Int_t xbin,Int_t ybin,Int_t weight)
182 Int_t bin = GetBin(xbin,ybin);
185 AddBinContent(bin,weight);
188 void AliL3Histogram::AddBinContent(Int_t bin,Int_t weight)
190 if(bin < 0 || bin > fNcells)
192 LOG(AliL3Log::kError,"AliL3Histogram::AddBinContent","array")<<AliL3Log::kDec<<
193 "bin-value out of range "<<bin<<ENDLOG;
199 fContent[bin] += weight;
202 void AliL3Histogram::Add(AliL3Histogram *h1,Double_t weight)
204 //Adding two histograms. Should be identical.
208 LOG(AliL3Log::kError,"AliL3Histogram::Add","Pointer")<<
209 "Attempting to add a non-existing histogram"<<ENDLOG;
213 if(h1->GetNbinsX()!=fNxbins || h1->GetNbinsY()!=fNybins)
215 LOG(AliL3Log::kError,"AliL3Histogram::Add","array")<<
216 "Mismatch in the number of bins "<<ENDLOG;
219 if(h1->GetFirstXbin()!=fFirstXbin || h1->GetLastXbin()!=fLastXbin ||
220 h1->GetFirstYbin()!=fFirstYbin || h1->GetLastYbin()!=fLastYbin)
222 LOG(AliL3Log::kError,"AliL3Histogram::Add","array")<<
223 "Mismatch in the bin numbering "<<ENDLOG;
227 for(Int_t bin=0; bin<fNcells; bin++)
228 fContent[bin] += h1->GetBinContent(bin);
230 fEntries += h1->GetNEntries();
233 Double_t AliL3Histogram::GetBinCenterX(Int_t xbin)
235 // return fXmin + (xbin-1) * fBinwidthX + 0.5*fBinwidthX;
236 return fXmin + (xbin-0.5) * fBinwidthX;
239 Double_t AliL3Histogram::GetBinCenterY(Int_t ybin)
241 // return fYmin + (ybin-1) * fBinwidthY + 0.5*fBinwidthY;
242 return fYmin + (ybin-0.5) * fBinwidthY;
245 void AliL3Histogram::Draw(Char_t *option)
250 for(Int_t bin=0; bin<fNcells; bin++)
252 fRootHisto->AddBinContent(bin,GetBinContent(bin));
255 fRootHisto->SetStats(kFALSE);
256 fRootHisto->Draw(option);
259 cerr<<"AliL3Histogram::Draw : You need to compile with ROOT in order to draw histogram"<<endl;
263 void AliL3Histogram::CreateRootHisto()
266 fRootHisto = new TH2F(fName,"",fNxbins,fXmin,fXmax,fNybins,fYmin,fYmax);
269 cerr<<"AliL3Histogram::CreateRootHisto : You need to compile with ROOT in order to create ROOT histogram"<<endl;