RooUniformBinning.h

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/*****************************************************************************
 * Project: RooFit                                                           *
 * Package: RooFitCore                                                       *
 *    File: $Id: RooUniformBinning.h,v 1.10 2007/05/11 09:11:30 verkerke Exp $
 * Authors:                                                                  *
 *   WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu       *
 *   DK, David Kirkby,    UC Irvine,         dkirkby@uci.edu                 *
 *                                                                           *
 * Copyright (c) 2000-2005, Regents of the University of California          *
 *                          and Stanford University. All rights reserved.    *
 *                                                                           *
 * Redistribution and use in source and binary forms,                        *
 * with or without modification, are permitted according to the terms        *
 * listed in LICENSE (http://roofit.sourceforge.net/license.txt)             *
 *****************************************************************************/
#ifndef ROO_UNIFORM_BINNING
#define ROO_UNIFORM_BINNING
 
#include "Rtypes.h"
#include "RooAbsBinning.h"
 
class RooUniformBinning : public RooAbsBinning {
public:
 
  RooUniformBinning(const char* name=nullptr) ;
  RooUniformBinning(double xlo, double xhi, Int_t nBins, const char* name=nullptr) ;
  RooUniformBinning(const RooUniformBinning& other, const char* name=nullptr) ;
  RooAbsBinning* clone(const char* name=nullptr) const override { return new RooUniformBinning(*this,name?name:GetName()) ; }
  ~RooUniformBinning() override ;
 
  void setRange(double xlo, double xhi) override ;
 
  Int_t numBoundaries() const override { return _nbins + 1 ; }
  void binNumbers(double const * x, int * bins, std::size_t n, int coef) const override;
  bool isUniform() const override { return true ; }
 
  double lowBound() const override { return _xlo ; }
  double highBound() const override { return _xhi ; }
 
  double binCenter(Int_t bin) const override ;
  double binWidth(Int_t bin) const override ;
  double binLow(Int_t bin) const override ;
  double binHigh(Int_t bin) const override ;
 
  double averageBinWidth() const override { return _binw ; }
  double* array() const override ;
 
protected:
 
  mutable double* _array ; ///<! do not persist
  double _xlo ;
  double _xhi ;
  Int_t    _nbins ;
  double _binw ;
 
 
  ClassDefOverride(RooUniformBinning,1) // Uniform binning specification
};
 
#endif