How can I show 3D points and lines within a 3D coordinate system

[Make it GREAT again]

Hi,
Working on this has began 3 weeks ago with Qwt3D. It is a little bit confused for the coordinate system of Qwt3D which has to be updated continuously.
I want to give it up by this moment. What I want to do is showing a 3D coordinate system somewhere on my UI and later plot 3D points on it while they are coming from another thread.