[ODE] Hinge based rope doesn't move

Megan Fox shalinor at gmail.com
Wed Aug 23 12:31:32 MST 2006

Hinges should be fine, but consider two things:

1.) You probably want a bal joint connecting it to the world - or two
hinge joints close to eachother.

2.) Alternative the DOF of the hinge joints per joint.  Have one joint
bend about the x axis, the next about the z, the next about the x, etc
(assuming Y up).

On 8/23/06, Tim Sorrells <tsorrells at breakawayltd.com> wrote:
> I've been trying to create a rope and keep it fairly optimized by limiting
> the degrees of freedom.  I first tried using hinges since all I really want
> is gravity to pull it down realistically.  With just gravity acting on the
> simulation and one end attached to the world to pin it in place, the rope
> (which started horizontal) never moved at all.  When I swapped out the
> hinges with universal joints it fell with gravity as expected.  But to
> optimize it, I really only wanted one degree of freedom, so is there any way
> to get hinges to work in this situation?  BTW, the rope is 15 bodies linked
> together in a line.
> _______________________________________________
> ODE mailing list
> ODE at q12.org
> http://q12.org/mailman/listinfo/ode

-Megan Fox
Idyllon, LLC

More information about the ODE mailing list