Re: [Discuss-gnuradio] Use of OpenGL in gr-qtgui

[Josh Blum]

On 03/27/2011 07:27 AM, Marcus D. Leech wrote:
> On 03/27/2011 03:01 AM, Josh Blum wrote:
>> For me, the qtgui component seems to build without gl support (probably
>> because of an uninstalled dependency). This gives you scope, dft,
>> constellation, and 2d spectrogram.
>>
>> The processor overhead seems to be lower than the wx widgets sinks. That
>> being said, there are some features missing that would add overhead,
>> like extra traces and triggering modes.
>>
>> I believe there is also a 3d spectrogram if you build with gl support.
>>
>> -Josh
>>
>>
>>   
> And while we're on the subject :-)
> 
> It would be good to be able to control update rate from GRC, right now,
> it just uses the
>   default.
> 
> Multiple-traces in "scope", and a "stripchart" mode would be good. 
> Actually without a multi-trace
>   strip-chart, I can't consider migrating my current apps to the Qt-GUI
> side.
> 

Agreed. But who can we convince to implement these features. :-)

> How are multiple "tabs" (Notebook) supported from GRC on the Qt-GUI side?
> 

Very similar to the notebook block w/ wx widgets. See the qtgui tab
widget block.

-Josh