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[Discuss-gnuradio] Re: Dynamically changing parameters of a block
From: |
Karthik Vijayraghavan |
Subject: |
[Discuss-gnuradio] Re: Dynamically changing parameters of a block |
Date: |
Sun, 28 Sep 2008 12:43:15 -0700 |
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