TernaryPoint.h

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/* -*- Mode: C++ -*-
   KDChart - a multi-platform charting engine
   */

/****************************************************************************
 ** Copyright (C) 2005-2007 Klarälvdalens Datakonsult AB.  All rights reserved.
 **
 ** This file is part of the KD Chart library.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** Licensees holding valid commercial KD Chart licenses may use this file in
 ** accordance with the KD Chart Commercial License Agreement provided with
 ** the Software.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.kdab.net/kdchart for
 **   information about KD Chart Commercial License Agreements.
 **
 ** Contact info@kdab.net if any conditions of this
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 **********************************************************************/

#ifndef TERNARYPOINT_H
#define TERNARYPOINT_H

#include <QtDebug>
#include <QPointF>

class TernaryPoint
{
public:
    TernaryPoint();
    TernaryPoint( double a, double b );

    double a() const { return m_a; }
    double b() const { return m_b; }
    double c() const { return 1.0 - m_a - m_b; }

    void set( double a, double b );

    bool isValid() const;

private:
    double m_a;
    double m_b;
};

QDebug operator<<( QDebug stream, const TernaryPoint& point );

QPointF translate( const TernaryPoint& );

#endif

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