Re: [Discuss-gnuradio] Showing a time-varying quantity in GNU Radio (with qtgui)

[Tom Rondeau]

On Wed, Jan 19, 2011 at 12:08 AM, Minsuk Kang
<address@hidden> wrote:
> Dear all,
> I'm implementing a GUI to show the time-varying wireless channel gain with
> qtgui.
> To be specific, I want to implement is a history plot.
> The X-axis is discrete time and the Y-axis is a channel gain.
> And the plot should be updated (refreshed) every few seconds.
> ( for example http://qwt.sourceforge.net/cpuplot.png )
> I've tried with qtgui.sink_f() block.
> But, the basic option 'plottime' is not appropriate for this purpose.
> Is there any other way to implement it?
> Minsuk Kang


You will have to add a plotting widget to the qtsink in C++ in
gr-qtgui/src/lib to do what you want.

Tom