3D Plot

[muykim]

Is there a way to do a 3d plotting in qt without using qwtplot3d?

[d_stranz]

You can try Qt Data Visualization (https://doc.qt.io/qt-5/qtdatavisualization-index.html) library. Takes a thousand lines of code to do the simplest things, but it might be suitable for your needs.

It suffers from many of the same defects as the Qt Charts library: a fixed and rigid set of classes, no virtual methods making it difficult to extend, and so forth.