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Re: [Discuss-gnuradio] Gr Complex in Python in Gnu Radio


From: Przemek Lewandowski
Subject: Re: [Discuss-gnuradio] Gr Complex in Python in Gnu Radio
Date: Sat, 30 Apr 2016 16:07:15 +0200

Ok, i know where is bug :) it is my bad understanding what is offset :) and what are boundaries. :)

Your sugest : analog.sig_source_c(1,analog.GR_SIN_WAVE, 0.1,1, 0.5+0.75j)

is fine for me, Thank you !!

Greetings



2016-04-30 8:41 GMT+02:00 Marcus Müller <address@hidden>:
Hi Przemek,

I must admit I'm not able to reproduce the issue –
>>> from gnuradio import analog
>>> analog.sig_source_c(1,analog.GR_SIN_WAVE, 0.1,1,1)
<gr_block sig_source_c (0)>

works just fine,  and the literal 1 is definitively an int. What does
print type(offset_Value) 
say in your code?

I guess you might want to use a complex offset? Python's built-in complex type works:
analog.sig_source_c(1,analog.GR_SIN_WAVE, 0.1,1, 0.5+0.75j)

Best regards,
Marcus

On 29.04.2016 22:53, Przemek Lewandowski wrote:
Hello :)

I would like to set offset to signal source component in construktor;
BUT I dont know which type is it in Python ??

signal_source = analog.sig_source_c(sampleRate, analog.GR_SAW_WAVE, frequencyCounted, 1/float(rowCounter), offset_Value)

offset_Value - when it is text it is bad
offset_Value - when it is int it is bad

so how to initialize offset in complex signal source in python ??

Greeting :)



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