Hi Ziad,
Having a running GR 4.0 with a custom OOT is certainly a good start,
well done!
I'm definitely not in the best position to give advice on GR4 code
philosophy as I still need to start playing with it before GSoc starts.
But I believe you'll find the best and most up to date info in the
gnuradio4 repo itself, including the readmes in the /docs folder, and
also the 4.0.0-RC1 tag description which covers a lot of the current state
I mention Bokeh in the project description because it's the dependency
we use for the current (GR3) version of the remote monitoring system, so
we know it can cover the main use case.
But it is far from perfect so we are open to using an other library
providing that same core use case of /remote/ monitoring with plots and
interaction with widgets, with the added bonus of not requiring anything
installed on the remote computer.
So ImGUI, with its many flavours /could/ be an interesting option with
better performance, nice plots... as long as it shows an efficient way
for remote operation outside of the local browser.
I hope it helps with some of your questions,
Best
*Cyrille MORIN*
/Ingénieur SED/
/Équipe MARACAS/
Logo Inria
Centre Inria de Lyon
Laboratoire CITI
Campus La Doua - Villeurbanne
6 avenue des Arts
F-69621 Villeurbanne
https://team.inria.fr/maracas/
Le 24/03/2026 à 04:40, Ziad Haithem 202201027 a écrit :
Dear GNU Radio Community,
I have decided that my gsoc proposal/project will be on the "BokehGUI
in GNU radio 4.0" idea
1. Proof of Concept & Progress
To get comfortable with the GR 4.0 , I’ve developed a small PoC . It
uses a signal generator block into a custom OOT module that publishes
data to a socket via ZMQ. A Python script then subscribes to that
socket and plots the sine wave in the browser in real-time using Bokeh.
Main goal is to just show i was able to take something generated by
GR4 and get it displayed in the browser
*
*Repo:*
[https://github.com/ZiadFahmyZewailCity/gr4.0-bokehgui/tree/gettingFamiliarWithDevelopment]
*
*Video Demo:* [Link to Video
<https://drive.google.com/file/d/1-5VSE6BerbMY9ruzjn5oQxtQFzTD34lS/view?usp=sharing>]
I've also worked through the GR3 beginner and OOT tutorials, and spent
time playing with ZMQ/Bokeh to ensure I can handle plotting and the
data flow between processes.
2. Seeking Guidance on GR 4.0
While I’m thrilled I got the PoC running, this is my first time
working with a codebase of this scale. My main concern is moving from
"making it work" to "making it right." What are some resources that'll
help me design and write code that "fits" with the design philosophy
behind OOT modules for GR4. I feel like this will be very important
for my proposal
3. Use of bokeh
I wrote the POC in bokeh and focused on it when experimenting because
its what was mentioned in the project description and there are plenty
of resources for it. However while researching I found that in
European GNU Radio Days
<https://wiki.gnuradio.org/index.php?title=European_GNU_Radio_Days/2025> in
the next generation remote GUI section. "Imgui" was considered a good
candidate to be used for wireless plotting for GNU Radio 4.0. Has the
community moved away from this opinion ? is it still present ? Should
I write my proposal with only one library in mind or be flexible and
have this been decided later on in development ?
4. Why This Project?
I initially looked for something with a bit more DSP and
communications concepts. However this project feels important, and I
decided to go with something which would have an impact instead of
wasting time thinking of a custom project to propose that had me
playing with some of the concepts i was most interested in.
I am really looking forward to the possibility of contributing to GNU
Radio this summer as part of GSOC. Thank you for your time and for any
pointers you can provide!
cyberspectrum is best spectrum (I think the code word is for the
proposal only but one can never be too safe lol)
Sincerely,
Ziad
--
Ziad Haithem Fahmy
ID:202201027
Communications and Information Engineering Student
Zewail City of Science, Technology and Innovation
Ahmed Zewail Road, October Gardens, Giza 12578, Egypt
<https://goo.gl/maps/bbNTX7EMrbZA1Lhu7>
www.zewailcity.edu.eg <http://www.zewailcity.edu.eg/>
0120 205 7175
Whatsapp number - 0109 479 1824
