[ODE] Making a leg (newbie question)
remi.ricard at simlog.com
Mon Jun 19 04:59:50 MST 2006
Vasco Freitas wrote:
> I'm just starting to use ODE, so sorry for the newbie question.
> I'm trying to make a leg, so I made two bodies and a hinge joint. I want
> to do this in 2D, so all forces I apply are only to x and z coordinates.
> The problem is when I move a body (by applying forces) the distance
> between the two bodies is always the same, and it shouldn't be right? It
> should be able to "bend the knee"...
> Maybe the problem has to do with dJointSetHingeAxis(), because I don't
> understand how to set the axis from the brief discription in the manual.
Usually the position between the 2 bodies will stay the same but their
orientation will change
build like this : ----- * -----
After motion: / \ or ----- *
/ \ \
/ \ \
I'm using the C++ version of the function but if you look in odecpp.h
you will find the C version.
joint = new dHingeJoint(world, 0);
joint->setAxis(0.0, 1.0, 0.0);
joint->setAnchor(position[X], position[Y], position[Z]);
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