RooRangeBinning.h

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/*****************************************************************************
 * Project: RooFit                                                           *
 * Package: RooFitCore                                                       *
 *    File: $Id: RooRangeBinning.h,v 1.4 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_RANGE_BINNING
#define ROO_RANGE_BINNING
 
#include "RooAbsBinning.h"
 
class RooRangeBinning : public RooAbsBinning {
public:
 
  RooRangeBinning(const char* name=0) ;
  RooRangeBinning(Double_t xmin, Double_t xmax, const char* name=0) ;
  RooRangeBinning(const RooRangeBinning&, const char* name=0) ;
  virtual RooAbsBinning* clone(const char* name=0) const { return new RooRangeBinning(*this,name?name:GetName()) ; }
  virtual ~RooRangeBinning() ;
 
  virtual Int_t numBoundaries() const { return 2 ; }
  virtual Int_t binNumber(Double_t) const { return 0 ; }
  virtual Double_t binCenter(Int_t) const { return (_range[0] + _range[1]) / 2 ; }
  virtual Double_t binWidth(Int_t) const { return (_range[1] - _range[0]) ; }
  virtual Double_t binLow(Int_t) const { return _range[0] ; }
  virtual Double_t binHigh(Int_t) const { return _range[1] ; }
 
  virtual void setRange(Double_t xlo, Double_t xhi) ;
  virtual void setMin(Double_t xlo) { setRange(xlo,highBound()) ; }
  virtual void setMax(Double_t xhi) { setRange(lowBound(),xhi) ; }
 
  virtual Double_t lowBound() const { return _range[0] ; }
  virtual Double_t highBound() const { return _range[1] ; }
  virtual Double_t averageBinWidth() const { return binWidth(0) ; }
 
  virtual Double_t* array() const { return const_cast<Double_t*>(_range) ; }
 
protected:
 
  Double_t _range[2] ;
    
  ClassDef(RooRangeBinning,1) // Binning that only defines the total range
};
 
#endif