Re: [Pyode-user] normalizing zero vecs

[Matthias B. <ba...@ir...>]

Bram Stolk wrote:
> If I let tutorial3.py run for a minute or so, with
> a current CVS pyode, and CVS ode, configed with DOUBLE type,
> I get these messages:
> 
> ODE Message 2: vector has zero size in dNormalize4()
> 
> This happens both with step() and quickStep().

I'm still using the official ODE 0.5 binaries under WinXP. And neither 
the single, nor the double version produces the above message (I had the 
tutorial running for several minutes).
But anyway, the message is generated from ODE itself (dNormalize4() is a 
function from the ODE maths routines), so there's little we can do with 
the Python wrapper to fix that problem.
Have you encountered this problem with other simulations, too? If it's 
possible to write a small example showing the problem, then it's 
probably worth posting it into the ODE mailing list.

- Matthias -