3 // Author: Anders Vestbo <mailto:vestbo@fi.uib.no>
4 //*-- Copyright © ALICE HLT Group
8 #include "AliL3StandardIncludes.h"
10 #include "AliL3Logging.h"
11 #include "AliL3Histogram.h"
17 //_____________________________________________________________
22 ClassImp(AliL3Histogram)
24 AliL3Histogram::AliL3Histogram()
47 AliL3Histogram::AliL3Histogram(Char_t *name,Char_t *id,
48 Int_t nxbin,Double_t xmin,Double_t xmax,
49 Int_t nybin,Double_t ymin,Double_t ymax)
55 fNcells = (nxbin+2)*(nybin+2);
60 fBinwidthX = (fXmax - fXmin) / fNxbins;
61 fBinwidthY = (fYmax - fYmin) / fNybins;
73 fContent = new Int_t[fNcells];
77 AliL3Histogram::~AliL3Histogram()
88 void AliL3Histogram::Reset()
91 for(Int_t i=0; i<fNcells; i++) fContent[i] = 0;
96 void AliL3Histogram::Fill(Double_t x,Double_t y,Int_t weight)
98 Int_t bin = FindBin(x,y);
102 AddBinContent(bin,weight);
105 Int_t AliL3Histogram::FindBin(Double_t x,Double_t y) const
107 Int_t xbin = FindXbin(x);
108 Int_t ybin = FindYbin(y);
112 return GetBin(xbin,ybin);
115 Int_t AliL3Histogram::FindXbin(Double_t x) const
117 if(x < fXmin || x > fXmax)
120 return 1 + (Int_t)(fNxbins*(x-fXmin)/(fXmax-fXmin));
123 Int_t AliL3Histogram::FindYbin(Double_t y) const
125 if(y < fYmin || y > fYmax)
128 return 1 + (Int_t)(fNybins*(y-fYmin)/(fYmax-fYmin));
131 Int_t AliL3Histogram::GetBin(Int_t xbin,Int_t ybin) const
133 if(xbin < fFirstXbin || xbin > fLastXbin)
135 if(ybin < fFirstYbin || ybin > fLastYbin)
138 return xbin + ybin*(fNxbins+2);
141 Int_t AliL3Histogram::GetBinContent(Int_t bin) const
145 LOG(AliL3Log::kError,"AliL3Histogram::GetBinContent","array")<<AliL3Log::kDec<<
146 "bin out of range "<<bin<<ENDLOG;
150 if(fContent[bin] < fThreshold)
152 return fContent[bin];
155 void AliL3Histogram::SetBinContent(Int_t xbin,Int_t ybin,Int_t value)
157 Int_t bin = GetBin(xbin,ybin);
160 SetBinContent(bin,value);
163 void AliL3Histogram::SetBinContent(Int_t bin,Int_t value)
168 LOG(AliL3Log::kError,"AliL3Histogram::SetBinContent","array")<<AliL3Log::kDec<<
169 "bin out of range "<<bin<<ENDLOG;
178 void AliL3Histogram::AddBinContent(Int_t xbin,Int_t ybin,Int_t weight)
180 Int_t bin = GetBin(xbin,ybin);
183 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) const
233 if(xbin < fFirstXbin || xbin > fLastXbin)
235 LOG(AliL3Log::kError,"AliL3Histogram::GetBinCenterX","xbin")
236 <<"Bin-value out of range "<<xbin<<ENDLOG;
240 return fXmin + (xbin-0.5) * fBinwidthX;
243 Double_t AliL3Histogram::GetBinCenterY(Int_t ybin) const
245 if(ybin < fFirstYbin || ybin > fLastYbin)
247 LOG(AliL3Log::kError,"AliL3Histogram::GetBinCenterY","ybin")
248 <<"Bin-value out of range "<<ybin<<ENDLOG;
252 return fYmin + (ybin-0.5) * fBinwidthY;
255 void AliL3Histogram::Draw(Char_t *option)
261 for(Int_t xbin=GetFirstXbin(); xbin<=GetLastXbin(); xbin++)
263 for(Int_t ybin=GetFirstYbin(); ybin<=GetLastYbin(); ybin++)
265 Int_t bin = GetBin(xbin,ybin);
266 fRootHisto->Fill(GetBinCenterX(xbin),GetBinCenterY(ybin),GetBinContent(bin));
270 //fRootHisto->SetStats(kFALSE);
271 fRootHisto->Draw(option);
274 cerr<<"AliL3Histogram::Draw : You need to compile with ROOT in order to draw histogram"<<endl;
278 void AliL3Histogram::CreateRootHisto()
281 fRootHisto = new TH2F(fName,"",fNxbins,fXmin,fXmax,fNybins,fYmin,fYmax);
284 cerr<<"AliL3Histogram::CreateRootHisto : You need to compile with ROOT in order to create ROOT histogram"<<endl;
287 ostream& operator<<(ostream &o, const AliL3Histogram &h)
289 for(Int_t xbin=h.GetFirstXbin(); xbin<=h.GetLastXbin(); xbin++)
291 for(Int_t ybin=h.GetFirstYbin(); ybin<=h.GetLastYbin(); ybin++)
293 Int_t bin = h.GetBin(xbin,ybin);
294 o << h.GetBinContent(bin) << " ";