2 // origin: hough/AliL3Histogram1D.cxx,v 1.11 Tue Jun 14 10:55:20 2005 UTC by cvetan
4 // Author: Anders Vestbo <mailto:vestbo@fi.uib.no>
5 //*-- Copyright © ALICE HLT Group
8 #include "AliHLTStdIncludes.h"
10 #include "AliHLTTPCLogging.h"
11 #include "AliHLTTPCHistogram1D.h"
19 //_____________________________________________________________
20 // AliHLTTPCHistogram1D
22 // 1D histogram class.
24 ClassImp(AliHLTTPCHistogram1D)
26 AliHLTTPCHistogram1D::AliHLTTPCHistogram1D()
40 AliHLTTPCHistogram1D::AliHLTTPCHistogram1D(Char_t *name,Char_t */*id*/,Int_t nxbin,Double_t xmin,Double_t xmax)
53 fContent = new Double_t[fNcells];
57 AliHLTTPCHistogram1D::~AliHLTTPCHistogram1D()
67 void AliHLTTPCHistogram1D::Reset()
69 //Reset histogram contents
71 bzero((char *)fContent,fNcells*sizeof(Double_t));
73 bzero(fContent,fNcells*sizeof(Double_t));
78 void AliHLTTPCHistogram1D::Fill(Double_t x,Int_t weight)
80 //Fill a given bin with weight
81 Int_t bin = FindBin(x);
82 AddBinContent(bin,weight);
86 Int_t AliHLTTPCHistogram1D::FindBin(Double_t x) const
89 if(x < fXmin || x > fXmax)
92 return 1 + (Int_t)(fNbins*(x-fXmin)/(fXmax-fXmin));
96 Int_t AliHLTTPCHistogram1D::GetMaximumBin() const
98 //Find the bin with the largest content
101 for(Int_t i=0; i<fNcells; i++)
103 if(fContent[i] > maxvalue)
105 maxvalue=fContent[i];
112 Double_t AliHLTTPCHistogram1D::GetBinContent(Int_t bin) const
117 LOG(AliHLTTPCLog::kError,"AliHLTTPCHistogram::GetBinContent","array")<<AliHLTTPCLog::kDec<<
118 "bin out of range "<<bin<<ENDLOG;
122 if(fContent[bin] < fThreshold)
124 return fContent[bin];
128 void AliHLTTPCHistogram1D::SetBinContent(Int_t bin,Int_t value)
133 LOG(AliHLTTPCLog::kError,"AliHLTTPCHistogram::SetBinContent","array")<<AliHLTTPCLog::kDec<<
134 "bin out of range "<<bin<<ENDLOG;
143 void AliHLTTPCHistogram1D::AddBinContent(Int_t bin,Int_t weight)
145 //Add weight to bin content
146 if(bin < 0 || bin > fNcells)
148 LOG(AliHLTTPCLog::kError,"AliHLTTPCHistogram::AddBinContent","array")<<AliHLTTPCLog::kDec<<
149 "bin-value out of range "<<bin<<ENDLOG;
155 fContent[bin] += weight;
158 Double_t AliHLTTPCHistogram1D::GetBinCenter(Int_t bin) const
161 Double_t binwidth = (fXmax - fXmin) / fNbins;
162 return fXmin + (bin-1) * binwidth + 0.5*binwidth;
166 void AliHLTTPCHistogram1D::Draw(Char_t *option)
169 fRootHisto = new TH1F(fName,"",fNbins,fXmin,fXmax);
170 for(Int_t bin=0; bin<fNcells; bin++)
171 fRootHisto->AddBinContent(bin,GetBinContent(bin));
173 fRootHisto->Draw(option);