#include "mainwindow.h" #include #include #include #include int main(int argc, char *argv[]) { QApplication a(argc, argv); //X-axis present //qreal v1 = 999999999999; //One millisecond difference //qreal v2 = 1000000000000; //X-axis vanishes qreal v1 = 1000000000000; //One millisecond difference qreal v2 = 1000000000001; //X-axis present //qreal v1 = 1000000000000; //two millisecond difference //qreal v2 = 1000000000002; QLineSeries *series = new QLineSeries(); series->append(v1, 10); //added coorfinates (v1, 10) series->append(v2, 100); QChart *chart = new QChart(); chart->addSeries(series); QValueAxis *x_axis = new QValueAxis(); chart->addAxis(x_axis, Qt::AlignBottom); QValueAxis * y_axis = new QValueAxis(); chart->addAxis(y_axis, Qt::AlignLeft); series->attachAxis(x_axis); series->attachAxis(y_axis); QMainWindow window; window.setCentralWidget(new QChartView(chart)); window.show(); return a.exec(); }