Change variables in the FFT Plot


#1

Hi All again, :slight_smile:

i tried to change the Y/Div value with a slider, but this
do not work.
So how can i change the Variables of the FFT-Plot Sink
during execution?
Is there a possibility to change the x/Div ?

Regards Markus


#2

The y per div is controlled by the dB/div radio buttons to the right of
the fft plot.

For the X axis, the max and min are set by the sample rate, and the
number of tick marks are set by x_divs… the x_per_div setting is
derived from this.

See http://gnuradio.org/trac/browser/gnuradio/trunk/gr-wxgui/README.gl

I cant tell if you are using the gl or non gl fft sink, but I believe
the non gl sink ignores settings for xdivs.

feldmaus wrote:

Hi All again, :slight_smile:

i tried to change the Y/Div value with a slider, but this
do not work.
So how can i change the Variables of the FFT-Plot Sink
during execution?
Is there a possibility to change the x/Div ?

Are you using GRC?
-josh


#3

Josh B. schrieb:

Are you using GRC?
-josh
Yes, i compiled gnuradio with support and
under Suse 11.1.

Nearby if you want to get a spec file to create a RPM
Package for Suse 11.1 i would send you mine. :slight_smile:

My Requirements are nearly complete.

Regards Markus