#include <QtWidgets/QApplication>
#include <QtWidgets/QMainWindow>
#include <QtCharts/QChartView>
#include <QtCharts/QLineSeries>
#include <QtCharts/QValueAxis>
#include <QDebug>

QT_CHARTS_USE_NAMESPACE

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QLineSeries *series = new QLineSeries();
    float scale = 1e-13; // works at 1e-12
    series->append(0, 6 * scale);
    series->append(2, 4 * scale);
    series->append(3, 8 * scale);
    series->append(7, 4 * scale);
    series->append(10, 5 * scale);

    QChart *chart = new QChart();
    chart->legend()->hide();
    chart->addSeries(series);
    QValueAxis *xAxis = new QValueAxis();
    QValueAxis *yAxis = new QValueAxis();
    chart->addAxis(xAxis, Qt::AlignBottom);
    chart->addAxis(yAxis, Qt::AlignLeft);
    series->attachAxis(xAxis);
    series->attachAxis(yAxis);

    QChartView *chartView = new QChartView(chart);
    chartView->setRenderHint(QPainter::Antialiasing);

    QMainWindow window;
    window.setCentralWidget(chartView);
    window.resize(400, 300);
    window.show();

    return a.exec();
}