Re: [Discuss-gnuradio] [GSOC] A HTML-based GUI for GNU Radio: Draft of proposal

[Bastian Bloessl]

Hi Kartik,

great proposal and it seems that Bokeh really provides all the required 
features.

As far as I understand, you would use an architecture similar to the one shown 
in the user guide
http://bokeh.pydata.org/en/latest/docs/user_guide/server.html#connecting-with-bokeh-client

Then the GNU Radio flow graph feeds data to the Bokeh server, which distributes 
and syncs the data in the client’s browsers.
As Martin already mention,  that would mean that we are really all-in Bokeh. So 
I guess the biggest question is if that’s a good idea. If we, at some point, 
find out that Bokeh has (performance) problems, there might not be a lot of 
code that can be reused. Do you know if Bokeh is tuned towards high data rates 
and frequent updates? Maybe it would be a good idea to also ask for feedback 
from the Bokeh guys and see what they think about this particular use-case.

The alternate architecture would be to have a more generic GNU Radio block that 
starts a web server and streams the incoming samples through web sockets (using 
Flask, for example). This would make the HTML frontend independent from the 
plotting library. We could, for example, have a Bokeh time sink and a Plotly 
frequency sink. Apart from that, we would not have to rewrite everything if we 
want to change the plotting library. Did you consider this architecture?

Best,
Bastian


> On 19 Mar 2017, at 21:18, Kartik Patel <address@hidden> wrote:
> 
> Dear Martin,
> 
> Thank you for the comments. 
> 
> FG in GRC will be same as the current one. Instead of including QT blocks, 
> you will have to include HTML blocks. Also, the Options blocks will have one 
> option called Web GUI which will enable the web portal.
> 
> I agree with your point about the name of gr-bokeh . Only thing I am unsure 
> about is, it does not represent the purpose. So, we can make it gr-bokehgui 
> or gr-bokweb if that is fine. 
> 
> Also, I will add acknowledgement details in my final PDF. Thank you for the 
> reminder.
> 
> Regards,
> Kartik Patel
> 
> 
> 
> 
> 
> On Sun, Mar 19, 2017 6:40 AM, Martin Braun address@hidden wrote:
> Also, please make sure you have acknowledged all the formalities, and
> 
> provide details on how you would like to update the community on a
> 
> regular basis.
> 
> 
> 
> -- M
> 
> 
> 
> On 03/18/2017 05:59 PM, Martin Braun wrote:
> 
> > Kartik,
> 
> >
> 
> > this is a pretty good draft for a proposal! You have all the relevant
> 
> > bits, and your previous contributions to GNU Radio are noted.
> 
> >
> 
> > One thing I'm not fully understanding is the workflow. Is it true that
> 
> > the FG generation in GRC is the same as before? If so, can I run this
> 
> > entire thing from within GRC (it would open a browser, but otherwise can
> 
> > I execute it from GRC)?
> 
> >
> 
> > You've called your OOT both gr-webgui and gr-htmlgui, but that's a minor
> 
> > issue. I'm wondering if gr-bokeh wouldn't be more apt; it seems like
> 
> > your choice of framework is pretty central to the code (that's OK), but
> 
> > what if someone else implements gr-webgui using fancy other framework XYZ?
> 
> >
> 
> > Cheers,
> 
> > Martin
> 
> >
> 
> > On 03/14/2017 09:07 AM, Kartik Patel wrote:
> 
> >> Hello,
> 
> >>
> 
> >> I am Kartik Patel, undergraduate student from Indian Institute of
> 
> >> Technology Roorkee. I am interested in the project /A web based GUI for
> 
> >> GNU Radio/.
> 
> >>
> 
> >> Here
> 
> >> <https://github.com/kartikp1995/GSoC2017/blob/master/WebBasedGUIForGNURadio.md>[1]
> 
> >> is the first draft of my proposal for the project. I have tried to cover
> 
> >> the background, the output as well as the flow of implementation. Kindly
> 
> >> review it and provide your valuable suggestion. In particular,
> 
> >> suggestions on the timeline, the defined scope of the project and
> 
> >> implementation overview is highly appreciated. Also, please ask any
> 
> >> query that is not exactly covered in the proposal. I can answer that and
> 
> >> also add it in the proposal.
> 
> >>
> 
> >> Thank you for your help.
> 
> >>
> 
> >> Regards,
> 
> >> Kartik Patel
> 
> >>
> 
> >> [1]
> 
> >> https://github.com/kartikp1995/GSoC2017/blob/master/WebBasedGUIForGNURadio.md
> 
> >>
> 
> >>
> 
> >>
> 
> >> _______________________________________________
> 
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> 
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> 
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> 
> >>
> 
> >
> 
> >
> 
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> 
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--
Dipl.-Inform. Bastian Bloessl
GitHub/Twitter: @bastibl
https://www.bastibl.net/