The histogram sink calculates a histogram over the N last samples, with
N set by configuring "number of points"; hence, if that is e.g. 1024
(default value), all counts must be ≤1024 and ∑(counts)=1024.
By the way, your block logic is a bit redundant: GNU Radio gives you
then block.ninput_items_read method:
def work(self, input_items, output_items):
self._i += 1
print self._i, self.ninput_items_read(0)
return len(input_items[0])
Best regards,
Marcus
On 12.02.2016 03:29, Maicon Kist wrote:
> Hi,
> I am having a problem with a simple block implementation in GNURadio:
>
> I developed a python block to count the quantity of numbers received.
> The problem arises when I compare the quantity of numbers received by
> my block with the ones counted in a Qt Histogram.
>
> My flowgraph is:
>
> ———————— ——————
> | Random Source |———— >| my_block |
> ———————— | ————— —
> |
> |
> | ————————
> |— >| QT Histo Sink |
> ————————
>
> When executing, my block prints it received millions of numbers,
> whereas the QT Histo Sink is showing only a few hundreds.
> Any suggestions?
>
>
> The work function of my block is as follows:
>
> ####################### my block code
> def work(self, input_items, output_items):
> in0 = input_items[0]
> num_input_items = len(in0)
>
> self._i += 1
> self._num_input_items_total += num_input_items
>
> if self._i % 10000 == 0:
> print self._i, self._num_input_items_total
>
> return len(in0)
> ########################
>
>
> Best Regards
> --
> Maicon Kist
>
> --
> Maicon Kist
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> [email protected]
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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