Points in scope sink are missing when zooming in and out

GNU Radio
1

For debugging or other purposes, sometimes I use time domain scope sink.

When I zoom in and out, points in the scope are missing.

For instance, flow graph generates a stream:

1111111111000000000011111111110000000000 (ten ones and zereos are
repeating)

After hitting buttons zooming in and out, the scope shows:

…1…1…1…0…0…0…1…1…1…0…0…0…1…1…1… (n ones and m zeros
are
repeating, n, m < 10)

I think this issue related with some graphic interface. Is it a know
issue?

Regards,
Jeon.

2

Hi Jeon,

is this QT or WX Gui?

Greetings,
Marcus

3

I am using WX.

I miss some details in the previous post.

It doesn’t happen when I hit zoom in and out one or two times.
It happens after hitting zoom in and out 4, 5, 6, … times. Not sure
exact
value.

Also, it seems the duration of each bits are unchanged.
i.e., ten ones before zooming and several ones after zooming have same
duration.

For additional information,
I am using GRC 3.7.6 on Ubuntu 14.04 (kernel 3.13) on VMWare assigned 2
CPUs (i7 3770) and 4 GB ram.

Regards,
Jeon.

2015-05-08 21:09 GMT+09:00 Marcus Müller [email protected]:

4

Dear, Marcus

That’s OK. It’s not a problem related with actual communication behavior
or
something.
I was just curious about that :slight_smile:

Regards,
Jeon.

2015-05-08 21:49 GMT+09:00 Marcus Müller [email protected]:

5

Hi Jeon,
sorry, I really can’t reproduce that. Can you provide a minimal
flowgraph that we can use to test?
Generally, GNU Radio slowly moves away from WX towards QT, so if that’s
an option, use QT.

Best regards,
Marcus