Marcus, To clarify, assume I set the sample rate at build time with the samp_rate variable within the QT GUI Frequency Sink. At run time, the bandwidth (x axis) is reflective of this samp_rate. However, if I have a source block upstream that changes the sample rate via out of band means, I would like that source block to change the samp_rate of the QT GUI Frequency Sink programmatically. I am able to change the frequency of the QT GUI Frequency Sink programmatically through the message port, but I haven't seen a way to change the samp_rate/bandwidth.
Jason On Tue, Jul 31, 2018 at 5:56 AM, Müller, Marcus (CEL) <[email protected]> wrote: > Hi Jason, > just to be sure to understand what you need: > Do you mean "zoom in x-axis"? > (because technically, the bandwidth of that display is always Nyquist, > i.e. defined by the sampling rate) > > Best regards, > Marcus > > On Mon, 2018-07-30 at 16:57 -0400, Jason Hein wrote: > > I have a GNU radio flow graph with a custom data source and I'd like to > be able to change the bandwidth displayed on the QT GUI Frequency Sink > block dynamically. Is there a way to do this programmatically? The QT GUI > Frequency Sink block has a message port for programmatic changes to > frequency, but I don't see an equivalent means for changing bandwidth. Is > there a way for an OOT block to get a reference to another block to call a > public member function? >
_______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
