On Sun, 02 Sep 2018 14:48:37 +0200, Jean-Michaël Celerier wrote: > For this kind of work I'd recoment QNanoPainter, ...
I also gave this hint to Denis - without having any experience with it myself. When I have more time I will check if its is possible for Qwt to benefit from this backend. Do you have any numbers, when comparing the specific problem of drawing dotted lines ? Thiago argues, that a QPainter based render engine results in performance bottlenecks. But if it is possible to have significantly better results with QNanoPainter then there is no conceptual problem and Qt development could improve the situation by working on the code of the OpenGL paint engine. Uwe _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development