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qtqtcharts

How to remove margin from QChartView or QChart

All Qt Charts seem to have a margin and rounded corners.

Example image with red marked border

How to remove both?

I want the white area to fill the entire dialog. I cannot find any informations in the Qt documentations. I found a screenshot of one Example that does not have this spacing. But I cannot find the code that disables it.

My initialization code looks like this:

QPieSeries *series = new QPieSeries();
series->append("Jane", 1);
series->append("Joe", 2);
series->append("Andy", 3);
series->append("Barbara", 4);
series->append("Axel", 5);

QChart *chart = new QChart();
chart->addSeries(series);

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

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

  • Devopia answerd the question in the comments!

    In my example above I needed the following 2 lines of code to remove the red part completely:

    chart->layout()->setContentsMargins(0, 0, 0, 0);
chart->setBackgroundRoundness(0);