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[Discuss-gnuradio] Showing a time-varying quantity in GNU Radio (with qt

From: Minsuk Kang
Subject: [Discuss-gnuradio] Showing a time-varying quantity in GNU Radio (with qtgui)
Date: Wed, 19 Jan 2011 14:08:36 +0900

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

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