Axis.h

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// -*- C++ -*-
// AID-GENERATED
// =========================================================================
// This class was generated by AID - Abstract Interface Definition
// DO NOT MODIFY, but use the org.freehep.aid.Aid utility to regenerate it.
// =========================================================================
#ifndef GAUDISVC__IAXIS_H
#define GAUDISVC__IAXIS_H 1
#include "AIDA_visibility_hack.h"

//  This file is part of the AIDA library
//  Copyright (C) 2002 by the AIDA team.  All rights reserved.
//  This library is free software and under the terms of the
//  GNU Library General Public License described in the LGPL.txt

#include "AIDA/IAxis.h"

#include "TAxis.h"

namespace Gaudi {

  class Axis  : public AIDA::IAxis
  {
  public:

    typedef Axis self;

    static int toRootIndex(int index, int nbins) {
      if (index==AIDA::IAxis::OVERFLOW_BIN)  return nbins+1;
      if (index==AIDA::IAxis::UNDERFLOW_BIN) return 0;
      return index+1;
    }

    static int toAidaIndex(int index, int bins) {
      if ( index == bins + 1 ) return AIDA::IAxis::OVERFLOW_BIN ;
      if ( index == 0 ) return AIDA::IAxis::UNDERFLOW_BIN ;
      return index - 1 ;
    }

    int rIndex(int index) const { return toRootIndex(index, bins());}

    int aIndex( int index ) const { return toAidaIndex(index, bins()); }

  public:

    Axis() = default;

    explicit Axis ( TAxis * itaxi ) : taxis_(itaxi) {}

    void initialize (TAxis * itaxi , bool ) { taxis_ = itaxi; }

    ~Axis() override = default;

    bool isFixedBinning() const override
    {
      return 0 == taxis_ ? true : !taxis_->IsVariableBinSize() ;
    }

    double lowerEdge() const override { return taxis().GetXmin();}

    double upperEdge() const override { return taxis().GetXmax();}

    int bins() const override { return taxis().GetNbins();}

    double binLowerEdge(int index) const override { return taxis().GetBinLowEdge(rIndex(index));}
    double binUpperEdge(int index) const override { return taxis().GetBinUpEdge(rIndex(index));}

    double binWidth(int index) const override { return taxis().GetBinWidth(rIndex(index));}

    int coordToIndex(double coord) const override
    {
      return aIndex( taxis().FindBin(coord) );
    }

    TAxis & taxis() const { return *me().taxis_;}

  private:

    self & me() const { return const_cast<self&>(*this);}


    TAxis * taxis_ = nullptr;

  }; // class

} // namespace Gaudi

#endif /* ifndef AIDA_IAXIS_H */