[Discuss-gnuradio] Re: Graphical programming with Ptolemy

[Patrick Strasser]

TJ Dreier wrote:
> I'm using a graphical
> modeling tool called Ptolemy  to allow design of gnuradio systems.

> 2) Use Ptolemy to draw block diagrams and connections.  Ptolemy allows
> block parameters to be configured by inspecting the XML I just
> described.

> 3) Then have Ptolemy convert the block diagram into a gnuradio python
> program.  Ptolemy is written in Java, so I have written Java classes
> to do this.

This are the parts I want to see in Python for several reasons:
* Gnuradio uses already Python. This is a known technology to the 
developers. And you can get rid of XML, another unknown technology.
(Gnuradio depends on C++, USB, Swig, Python and wxWidgets, moreover the 
>3 audio interfaces. That's a enough to support as can be seen on this 
list.)
* Gnuradio can work quite fine with wxWidgets. It's quite portable in 
this configuration.
* I doubt that you use _less_ system resources with both Python _and_ 
Java/Ptolemy running.

> 4) Ptolemy launches this program and communicates with it using pipes.
> This allows you to create other pieces of Ptolemy simulations that
> source or sink data to GR.

Of course Ptolemy has a lot more functionality.

> Here's a screenshot to give you an idea:
> http://www.ee.ucla.edu/~tjdreier/gnuradio_ptolemy.jpg

Looks quite like the thing I had in mind.
Perhaps I should give it a try...

ad point 3): Do you have any means for parsing working apps?

Patrick
--
Engineers motto: cheap, good, fast: choose any two
Patrick Strasser <patrick dot strasser at  tugraz dot at>
Student of Telematik, Techn. University Graz, Austria