File: samplingthread.h

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qwt 6.1.4-2
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#include <qwt_sampling_thread.h>

class SamplingThread: public QwtSamplingThread
{
    Q_OBJECT

public:
    SamplingThread( QObject *parent = NULL );

    double frequency() const;
    double amplitude() const;

public Q_SLOTS:
    void setAmplitude( double );
    void setFrequency( double );

protected:
    virtual void sample( double elapsed );

private:
    virtual double value( double timeStamp ) const;

    double d_frequency;
    double d_amplitude;
};