Best way in Qt to plot curve per real-time reading?

[Sheng]

I have the high-frequency data come in and want to down sample it and plot it in a window. Any suggestions on that besides QWT? I only have such experience with MFC before. Thanks.

[john_god]

I'm still a newbie in qt, but I also worked with MFC plotting graphs. and I used OpenGL.
I'm using it now with Qt, I found it very easy and powerful