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.
// =========================================================================
#pragma once
 
//  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:
    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; }

    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:
    Axis& me() const { return const_cast<Axis&>( *this ); }
 
    TAxis* taxis_ = nullptr;
 
  }; // class
 
} // namespace Gaudi