source: ntrip/branches/BNC_2.11.0/qwtpolar/qwt_polar_fitter.h@ 6813

/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
 * QwtPolar Widget Library
 * Copyright (C) 2008   Uwe Rathmann
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the Qwt License, Version 1.0
 *****************************************************************************/

#ifndef QWT_POLAR_FITTER_H
#define QWT_POLAR_FITTER_H

#include "qwt_polar_global.h"
#include <qwt_curve_fitter.h>

/*!
  \brief A simple curve fitter for polar points

  QwtPolarFitter adds equidistant points between 2 curve points,
  so that the connection gets rounded according to the nature of
  a polar plot.

  \sa QwtPolarCurve::setCurveFitter()
*/
class QWT_POLAR_EXPORT QwtPolarFitter: public QwtCurveFitter
{
public:
    QwtPolarFitter( int stepCount = 5 );
    virtual ~QwtPolarFitter();

    void setStepCount( int size );
    int stepCount() const;

    virtual QPolygonF fitCurve( const QPolygonF & ) const;

private:
    class PrivateData;
    PrivateData *d_data;
};

#endif