qwt_curve_fitter.h
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00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** 00002 * Qwt Widget Library 00003 * Copyright (C) 1997 Josef Wilgen 00004 * Copyright (C) 2002 Uwe Rathmann 00005 * 00006 * This library is free software; you can redistribute it and/or 00007 * modify it under the terms of the Qwt License, Version 1.0 00008 *****************************************************************************/ 00009 00010 #ifndef QWT_CURVE_FITTER_H 00011 #define QWT_CURVE_FITTER_H 00012 00013 #include "qwt_global.h" 00014 #include "qwt_double_rect.h" 00015 00016 class QwtSpline; 00017 00018 #if QT_VERSION >= 0x040000 00019 #include <QPolygonF> 00020 #else 00021 #include "qwt_array.h" 00022 #endif 00023 00024 // MOC_SKIP_BEGIN 00025 00026 #if defined(QWT_TEMPLATEDLL) 00027 00028 #if QT_VERSION < 0x040000 00029 #ifndef QWTARRAY_TEMPLATE_QWTDOUBLEPOINT // by mjo3 00030 #define QWTARRAY_TEMPLATE_QWTDOUBLEPOINT 00031 template class QWT_EXPORT QwtArray<QwtDoublePoint>; 00032 #endif //end of QWTARRAY_TEMPLATE_QWTDOUBLEPOINT 00033 #endif 00034 00035 #endif 00036 00037 // MOC_SKIP_END 00038 00042 class QWT_EXPORT QwtCurveFitter 00043 { 00044 public: 00045 virtual ~QwtCurveFitter(); 00046 00047 #if QT_VERSION < 0x040000 00048 virtual QwtArray<QwtDoublePoint> fitCurve( 00049 const QwtArray<QwtDoublePoint>&) const = 0; 00050 #else 00051 00057 virtual QPolygonF fitCurve(const QPolygonF &polygon) const = 0; 00058 #endif 00059 00060 protected: 00061 QwtCurveFitter(); 00062 00063 private: 00064 QwtCurveFitter( const QwtCurveFitter & ); 00065 QwtCurveFitter &operator=( const QwtCurveFitter & ); 00066 }; 00067 00071 class QWT_EXPORT QwtSplineCurveFitter: public QwtCurveFitter 00072 { 00073 public: 00074 enum FitMode 00075 { 00076 Auto, 00077 Spline, 00078 ParametricSpline 00079 }; 00080 00081 QwtSplineCurveFitter(); 00082 virtual ~QwtSplineCurveFitter(); 00083 00084 void setFitMode(FitMode); 00085 FitMode fitMode() const; 00086 00087 void setSpline(const QwtSpline&); 00088 const QwtSpline &spline() const; 00089 QwtSpline &spline(); 00090 00091 void setSplineSize(int size); 00092 int splineSize() const; 00093 00094 #if QT_VERSION < 0x040000 00095 virtual QwtArray<QwtDoublePoint> fitCurve( 00096 const QwtArray<QwtDoublePoint> &) const; 00097 #else 00098 virtual QPolygonF fitCurve(const QPolygonF &) const; 00099 #endif 00100 00101 private: 00102 #if QT_VERSION < 0x040000 00103 QwtArray<QwtDoublePoint> fitSpline( 00104 const QwtArray<QwtDoublePoint> &) const; 00105 QwtArray<QwtDoublePoint> fitParametric( 00106 const QwtArray<QwtDoublePoint> &) const; 00107 #else 00108 QPolygonF fitSpline(const QPolygonF &) const; 00109 QPolygonF fitParametric(const QPolygonF &) const; 00110 #endif 00111 00112 class PrivateData; 00113 PrivateData *d_data; 00114 }; 00115 00116 #endif
