#ifndef _PLOT_H_ #define _PLOT_H_ #include <qwt_plot.h> class QwtPlotCurve; class QwtPlotMarker; class Plot: public QwtPlot { Q_OBJECT public: Plot(QWidget *parent); public Q_SLOTS: void setDamp(double damping); private: void showData(const double *frequency, const double *amplitude, const double *phase, int count); void showPeak(double freq, double amplitude); void show3dB(double freq); QwtPlotCurve *d_curve1; QwtPlotCurve *d_curve2; QwtPlotMarker *d_marker1; QwtPlotMarker *d_marker2; }; #endif