QPainterPath from list of points

Chris Kawa

As mentioned above you can use QPainterPathStroker. The problem is it will create tiny loops on the inside of the joints, so you need to simplify the path afterwards.
Sample code:

QVector<QPoint> points { QPoint(30,30), QPoint(100, 100), QPoint(200,50) };

QPainterPath basePath;
basePath.addPolygon(QPolygon(points));

QPainterPathStroker str;
str.setCapStyle(Qt::RoundCap);
str.setWidth(10.0);

QPainterPath resultPath = str.createStroke(basePath).simplified();

Joel Bodenmann

Wow, I am deeply impressed. Using the code shown by @Chris-Kawa gave exactly the desired result:
Alt text

Thank you very much for your help, guys. Very appreciated!

mrjj

well what can we say ?
Chris rules :)

Joel Bodenmann

@mrjj Well, thanks to you and @kshegunov too. You guys are amazing!