Re: [Discuss-gnuradio] QT scope block?

[Martin Braun]

On 29.06.2015 12:30, numeric wrote:
> Hello Marcus,
> 
> I did try the constellation sink approach. The result seemed to be scatter
> plot without a solid trigger lock. A trigger may not work because the Y
> complex waveform provides no repeating pattern. 
> At this point, I think I could achieve faster results by writing my own code
> rather than using python and gnuradio for the VNA project. Using Delphi, I
> could easily use the Ettus DLL. I have been using Delphi since it's
> beginning and speed has always been my priority. Delphi generates compiled
> code and runs FAST! Even faster than C++ compiled code that I have run speed
> comparisons. Also no need for QT. 

Hey Rob,

by no means do I want to discourage you from any coding endeavours; I do
have a couple of data points you might find interesting:

- The constellation plot can be set to plot lines instead of points, and
does have some trigger functionality. If that's 90% of what you need,
might actually be easier to work off of that.
- If you want to use GNU Radio apps with other GUI elements, even your
Delphi app will need to work with QT. Although it does seem like you
want to write something stand-alone, right?

Cheers,
Martin