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Strange: For me, the problem persists (at least with random dummy data
from a random file in /tmp):
>>> taps = numpy.fromfile("/tmp/tblatex-4.png",
dtype=numpy.complex64).tolist()
>>> fffilter = filter.fft_filter_ccc(1, taps ,1)
Traceback (most recent call last):
File "<input>", line 1, in <module>
File
"/home/marcus/.usrlocal/lib64/python2.7/site-packages/gnuradio/filter/filter_swig.py",
line 1329, in make
return _filter_swig.fft_filter_ccc_make(*args, **kwargs)
TypeError: in method 'fft_filter_ccc_make', argument 2 of type
'std::vector< gr_complex,std::allocator< gr_complex > > const &'
Greetings,
Marcus
On 20.04.2014 18:24, Tom McDermott wrote:
> Thanks, Tom that solved the problem.
>
> numpy.fromfile('filename', numpy.complex64).tolist()
>
> Should the gnuradio wiki (GRC) text be updated?
>
> Apologies for the triple posting, first two attempts were using
> yahoo.commail account, got bit by the yahoo DMARC problem and
> dumped from the list. Changed to gmail to avoid the problem.
>
> -- Tom, N5EG
>
>
>
>
> On Sun, Apr 20, 2014 at 8:44 AM, Tom Rondeau <t...@trondeau.com>
> wrote:
>
>> On Sat, Apr 19, 2014 at 1:27 PM, Tom McDermott
>> <tom.n...@gmail.com> wrote:
>>
>>> Am getting the following error when trying to run a GRC
>>> flowgraph that loads FFT filter taps from an external file. The
>>> type filter parameter is set to complex->complex (complex
>>> taps). The flow graph has imported numpy. The taps are loaded
>>> using:
>>>
>>> numpy.fromfile('/home/tom/Desktop/EchoScreencaps/chirp-down-20-20-131072',
>>>
>>>
numpy.complex64)
>>>
>>> as the taps parameter. What does the error below mean?
>>>
>>> GRC: v3.7.4git-101-g76970d54 Ubuntu 13.10 top_block.py is
>>> attached.
>>>
>>> -- Tom, N5EG
>>>
>>>
>>> Traceback (most recent call last): File
>>> "/home/tom/Desktop/EchoScreencaps/top_block.py", line 173, in
>>> <module> tb = top_block() File
>>> "/home/tom/Desktop/EchoScreencaps/top_block.py", line 115, in
>>> __init__ self.fft_filter_xxx_0 = filter.fft_filter_ccc(1,
>>> (numpy.fromfile('/home/tom/Desktop/EchoScreencaps/chirp-down-20-20-131072',
>>>
>>>
numpy.complex64)), 1)
>>> File
>>> "/usr/local/lib/python2.7/dist-packages/gnuradio/filter/filter_swig.py",
>>>
>>>
line 1329, in make
>>> return _filter_swig.fft_filter_ccc_make(*args, **kwargs)
>>> TypeError: in method 'fft_filter_ccc_make', argument 2 of type
>>> 'std::vector< gr_complex,std::allocator< gr_complex > > const
>>> &'
>>>
>>
>>
>> Tom,
>>
>> This is a conflict between the numpy array data type and swig.
>> Call the .tolist() function on the array passed back from numpy
>> and it should work.
>>
>> Tom
>>
>>
>
>
>
> _______________________________________________ Discuss-gnuradio
> mailing list Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
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