Added 1D histograms.

diff --git a/HLT/hough/AliL3Histogram1D.cxx b/HLT/hough/AliL3Histogram1D.cxx
new file mode 100644 (file)
index 0000000..4911724
--- /dev/null
+++ b/HLT/hough/AliL3Histogram1D.cxx
@@ -0,0 +1,141 @@
+//Author:        Anders Strand Vestbo
+//Last Modified: 28.6.01
+
+#include "AliL3Logging.h"
+#include "AliL3Histogram1D.h"
+
+//2D histogram class.
+
+ClassImp(AliL3Histogram1D)
+
+AliL3Histogram1D::AliL3Histogram1D()
+{
+  fNbins = 0;
+  fNcells = 0;
+  fEntries = 0;
+  fXmin = 0;
+  fXmax = 0;
+#ifdef use_root
+  fRootHisto = 0;
+#endif
+  fThreshold = 0;
+  fContent = 0;
+  
+}
+
+  
+AliL3Histogram1D::AliL3Histogram1D(Char_t *name,Char_t *id,Int_t nxbin,Double_t xmin,Double_t xmax)
+
+{
+  
+  strcpy(fName,name);
+  fNbins = nxbin;
+  fNcells = fNbins + 2;
+  fEntries = 0;
+  fXmin = xmin;
+  fXmax = xmax;
+  
+  fRootHisto = 0;
+  fThreshold = 0;
+  
+  fContent = new Double_t[fNcells];
+  Reset();
+}
+
+AliL3Histogram1D::~AliL3Histogram1D()
+{
+  //Destructor
+  if(fContent)
+    delete [] fContent;
+#ifdef use_root
+  if(fRootHisto)
+    delete fRootHisto;
+#endif
+}
+
+
+void AliL3Histogram1D::Reset()
+{
+  bzero(fContent,fNcells*sizeof(Double_t));
+  fEntries=0;
+}
+
+void AliL3Histogram1D::Fill(Double_t x,Int_t weight)
+{
+  Int_t bin = FindBin(x);
+  AddBinContent(bin,weight);
+}
+
+
+Int_t AliL3Histogram1D::FindBin(Double_t x)
+{
+  if(x < fXmin || x > fXmax)
+    return 0;
+  
+  return 1 + (Int_t)(fNbins*(x-fXmin)/(fXmax-fXmin));
+
+}
+
+Double_t AliL3Histogram1D::GetBinContent(Int_t bin)
+{
+  if(bin >= fNcells)
+    {
+      LOG(AliL3Log::kError,"AliL3Histogram::GetBinContent","array")<<AliL3Log::kDec<<
+       "bin out of range "<<bin<<ENDLOG;
+      return 0;
+    }
+  
+  if(fContent[bin] < fThreshold)
+    return 0;
+  return fContent[bin];
+}
+
+
+void AliL3Histogram1D::SetBinContent(Int_t bin,Int_t value)
+{
+
+  if(bin >= fNcells)
+    {
+      LOG(AliL3Log::kError,"AliL3Histogram::SetBinContent","array")<<AliL3Log::kDec<<
+       "bin out of range "<<bin<<ENDLOG;
+      return;
+    }
+  if(bin == 0)
+    return;
+  fContent[bin]=value;
+  
+}
+
+void AliL3Histogram1D::AddBinContent(Int_t bin,Int_t weight)
+{
+  if(bin < 0 || bin > fNcells)
+    {
+      LOG(AliL3Log::kError,"AliL3Histogram::AddBinContent","array")<<AliL3Log::kDec<<
+       "bin-value out of range "<<bin<<ENDLOG;
+      return;
+    }
+  if(bin == 0)
+    return;
+  fEntries++;
+  fContent[bin] += weight;
+}
+
+Double_t AliL3Histogram1D::GetBinCenter(Int_t bin)
+{
+  
+  Double_t binwidth = (fXmax - fXmin) / fNbins;
+  return fXmin + (bin-1) * binwidth + 0.5*binwidth;
+  
+}
+
+#ifdef use_root
+void AliL3Histogram1D::Draw(Char_t *option)
+{
+  fRootHisto = new TH1F(fName,"",fNbins,fXmin,fXmax);
+  for(Int_t bin=0; bin<fNcells; bin++)
+    fRootHisto->AddBinContent(bin,GetBinContent(bin));
+  
+  fRootHisto->Draw(option);
+  
+}
+#endif

diff --git a/HLT/hough/AliL3Histogram1D.h b/HLT/hough/AliL3Histogram1D.h
new file mode 100644 (file)
index 0000000..f8d3e02
--- /dev/null
+++ b/HLT/hough/AliL3Histogram1D.h
@@ -0,0 +1,53 @@
+#ifndef ALIL3_HISTOGRAM1D
+#define ALIL3_HISTOGRAM1D
+
+#include "AliL3RootTypes.h"
+#include <TH1.h>
+
+
+class AliL3Histogram1D {
+  
+ private:
+  
+  Double_t *fContent; //!
+  Char_t fName[100];
+  Int_t fNbins;
+  Int_t fNcells;
+  Int_t fEntries;
+
+  Int_t fThreshold;
+  Double_t fXmin;
+  Double_t fXmax;
+
+  
+#ifdef use_root
+  TH1F *fRootHisto;
+#endif  
+
+ public:
+  AliL3Histogram1D();
+  AliL3Histogram1D(Char_t *name,Char_t *id,Int_t nxbin,Double_t xmin,Double_t xmax);
+  virtual ~AliL3Histogram1D();
+  
+  void Reset();
+  void Fill(Double_t x,Int_t weight=1);
+  void AddBinContent(Int_t bin,Int_t weight);
+  Int_t FindBin(Double_t x);
+  Double_t GetBinContent(Int_t bin);
+  Double_t GetBinCenter(Int_t bin);
+  Int_t GetNEntries() {return fEntries;}
+  
+  void SetBinContent(Int_t bin,Int_t value);
+  void SetThreshold(Int_t i) {fThreshold = i;}
+  
+
+#ifdef use_root
+  void Draw(Char_t *option="hist");
+  TH1F *GetRootHisto() {return fRootHisto;}
+#endif
+  
+  ClassDef(AliL3Histogram1D,1)
+    
+};
+
+#endif