// int numPoints = 100;
QVector<QPointF> points0;
// QVector<QPointF> points1;
/* for (int x = 0; x < numPoints; ++x) {
points0.append(QPointF(x, uint(qrand()) % 100));
points1.append(QPointF(x, uint(qrand()) % 100));
}*/
points0.append(QPointF(3, 8));
points0.append(QPointF(4, 18));
plotter.setCurveData(0, points0);
plotter.show();
QTest::qSleep(5000);
points0.append(QPointF(4, 8));
plotter.setCurveData(0, points0);
plotter.show();
app.exec();