dsimcha wrote: >> Is it really that hard to have the GUI libs in question just give you >> some pixels in memory or an opengl context? Then you could use your own >> highly optimized plot drawing routines instead of relying on the GUI lib >> to do this. I figured this kind of thing would be unbeatable for >> performance, unless the library ties your hands. > > I had considered this. The biggest problem is font rendering.
In case of Qt, you can use a QGraphicsView on an OpenGL-widget. You can draw a 'background' with OpenGL (your plot) and render text with QGraphicsTextItem.