TernaryPoint.h

/*
 * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
 *
 * This file is part of the KD Chart library.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef TERNARYPOINT_H
#define TERNARYPOINT_H
 
#include <QtDebug>
#include <QPointF>
 
/**
  * @brief TernaryPoint defines a point within a ternary coordinate plane
  * \internal
  */
class TernaryPoint
{
public:
    TernaryPoint();
    TernaryPoint( qreal a, qreal b );
 
    qreal a() const { return m_a; }
    qreal b() const { return m_b; }
    qreal c() const { return 1.0 - m_a - m_b; }
 
    void set( qreal a, qreal b );
 
    bool isValid() const;
 
private:
    qreal m_a;
    qreal m_b;
};
 
QDebug operator<<( QDebug stream, const TernaryPoint& point );
 
QPointF translate( const TernaryPoint& );
 
#endif