[Discuss-gnuradio] Re: Dynamically changing parameters of a block

[Karthik Vijayraghavan]

On Sun, Sep 28, 2008 at 11:22 AM, Richard Jaeger
<address@hidden> wrote:
> Karthik:
>
> Here are some code segments that I borrowed and put together from
> several of the gnu-radio examples.
>
> #Complex Multiply Block
>
> self.mc_2 = gr.multiply_const_cc(gain_2)
> .
> .
>
> #Gain Control Slider
>
> myform['Gain 2'] = \
>            form.quantized_slider_field(parent=self.panel, sizer=hbox,
> label = "Gain 2",
>                                        weight=3, range=(-20, 20, .2),
>                                        callback=self.set_gain_2)
> .
> .
>
>
> #Gain Control
>
> def set_gain_2 (self, gain):
>        gain = max(-20, min(20, gain))
>        gain_2 = 10**(gain/20)
>        self.mc_2.set_k(gain_2)
>
> These seem to work in my application, although I'm just learning Python.
> Anytime the gain control slider changes, the gain is updated.
>
> RCJ....
>
>

Thanks to everyone for answering. I had forgotten that I could use the
public member functions in a block to dynamically change the block
behavior, thanks for pointing that out.

Regards,
Karthik