1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2  * QwtPolar Widget Library
3  * Copyright (C) 2008   Uwe Rathmann
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the Qwt License, Version 1.0
7  *****************************************************************************/
8 
9 #ifndef QWT_POLAR_FITTER_H
10 #define QWT_POLAR_FITTER_H
11 
12 #include "qwt_polar_global.h"
13 #include <qwt_curve_fitter.h>
14 
15 /*!
16   \brief A simple curve fitter for polar points
17 
18   QwtPolarFitter adds equidistant points between 2 curve points,
19   so that the connection gets rounded according to the nature of
20   a polar plot.
21 
22   \sa QwtPolarCurve::setCurveFitter()
23 */
24 class QWT_POLAR_EXPORT QwtPolarFitter: public QwtCurveFitter
25 {
26 public:
27     QwtPolarFitter( int stepCount = 5 );
28     virtual ~QwtPolarFitter();
29 
30     void setStepCount( int size );
31     int stepCount() const;
32 
33     virtual QPolygonF fitCurve( const QPolygonF & ) const;
34 
35 private:
36     class PrivateData;
37     PrivateData *d_data;
38 };
39 
40 #endif
41