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plotDemo.h

#include <qapp.h>
#include <qwidget.h>
#include <qwt_plot.h>
#include <qwt_math.h>
extern "C"
{
#include <stdlib.h>
}

const int PLOT_SIZE = 201;              // 0 to 200

class plotDemo : public QWidget
{
public:
    plotDemo(QWidget *parent, const char *name, WFlags f);
    ~plotDemo();

private:
    QwtPlot *plot;
    int tid;
    double x[PLOT_SIZE], x2[PLOT_SIZE], y[PLOT_SIZE], z[PLOT_SIZE], err[PLOT_SIZE];

protected:
    void resizeEvent(QResizeEvent *e);
    void timerEvent(QTimerEvent *e);
};

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