On Mon, Sep 28, 2015 at 11:12 PM, Jeremy Butler <oddballbut...@gmail.com> wrote:
> Hello, this is my first post to the mailing list! Thanks in advance for > taking the time to help me out! > > I'm using gnuradio v3.7.6git and Ubuntu 12.04 > > I am having issues with the "Clicked Freq Variable" option in the > qtgui_sink block in GRC. If I understand this correctly, it should > basically act just as the "Freq Set Varname" option of the WX GUI FFT Sink. > > The qtgui_sink block doesn't seem to be changing the variable that I put > into this option when I click or double click on the frequency graph. > > I've attached a small GRC flowgraph to illustrate the issue. I would > expect the label to change every time that I click on the frequency graph. > > I've looked into the source code a little bit and done some debugging and > I've found that it doesn't seem like the plotPointSelected signal is even > being emitted, or if it is, it isn't being captured and the appropriate > callback is not being called to update the variable. > > I'm at a loss now. Any help would be greatly appreciated! > > Thank you all for your time! > Jeremy, The qtgui_sink_X blocks don't have this functionality built in. Instead, you'll want to use the qtgui_freq_sink_X blocks for this purpose. The general qtgui_sink blocks need a lot of rework to pull in the new features that are currently available in the other stand-alone blocks. Tom
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