Alternative to Simulink/Scicos for Octave?

[Ivan Martinez]

        Hello all,
        I'm writing a paper called "Open-source Software for Engine Models 
Development and Testing", to be presented at the Society of Automotive 
Engineers meeting 2004. The paper tries to build a picture of what 
open-source software is available for such application, and how it can be 
used.
        The paper describes Scilab, the Octave competitor you probably know. 
Scilab 
has a graphical application to define dynamic systems, Simulink-style, called 
Scicos. Scicos can generate a C implementation of the dynamic system, using 
the CodeGen package. There is one tool to generate code for a specific 
realtime systems, RTAI-Lab for RTAI. RTAI-Lab also makes it easier to include 
hardware inputs and outputs in the block diagram, by interfacing the drivers 
library called Comedi.
        The paper will also describe Octave, so I would like to know which 
alternatives are in Octave for all the tools mentioned above. I searched in 
your mailing lists and I only found about Ptolemy and Gnans. But has Ptolemy 
anything to do with Octave?. And is Gnans still being developed?. Are there 
other tools for dynamic-system modelling, including non-graphical ones?. What 
about generators of standard and system-specific code?. And interfacing 
hardware devices to connect to laboratory equipment?.
        Please notice I'm only interested in free/open-source software still 
being 
actively developed. Thank you.
        Ivan Martinez
        



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