Hi !
I work on linux (Xubuntu), I think the graphical environment is handled by X11.
The problem I have is I sometimes launch big computations on a distant machine, so I do it by command line.

I would like to be able to plot 3D graphs (and benefit from the power of Qt DataVisualization), and print them to images, without having to launch a graphic interface (and so without a QApplication)... but I'm not sure it's possible.
I'm trying to look at QPixmap::grabWidget or QScreen::grabWindow, but the latter one requires a screen display, I think.
Do you have any options ?

Thanks !