[ODE] Wheels bending ;-)

[kaffiene]

Hi

Thanks for the ideas.  I'm using (1) already since my code is based on the
test buggy code - but I'm using four steering/driving wheels using hinge2s.

I tried tip (4) - but using the hinge2 equivallents - and it's still broken.

Can anybody else help?  I'm a graphics guy, not a physics guy so I'm kinda
stuck =)

Cheers,

Peter.


----- Original Message -----
From: <Daniel.Groll@t-online.de>
To: <ode@q12.org>
Sent: Monday, June 03, 2002 3:28 AM
Subject: Re: [ODE] Wheels bending ;-)


> Hi!
>
> I have posted a similar question a few days ago. I can't provide a
> solution to the problem, but I discovered some tips:
>
> 1. For your steering axis use Hinge parameters "dParamLoStop",
> "dParamHiStop" instead of "dParamVel2" (as mentioned in the source of
> the buggy sample)
> 2. Take a hinge (not hinge2) joint for the non-steering axis.
> 3. Don't put additional velocity on the steering axis. Use the
> non-steering for the impellent.
> 4. Check the speed of rotation frequently (I do this every time step)
> with "dJointGetHingeAngleRate", and if the wheel rotates too fast,
> break it down (e.g. dJointSetHingeParam(wheeljoint, dParamVel, 0)). The
> reason is, if the car turns at higher speed, often a wheel gets off the
> ground and begins to rotate very fast almost immediately (or is there a
> parameter to limit the rotation in advance??).
>
> Hope this helps,
>
> Daniel
> _______________________________________________
> ODE mailing list
> ODE@q12.org
> http://q12.org/mailman/listinfo/ode