[ODE] quadratic planes
Jon Watte (ODE)
hplus-ode at mindcontrol.org
Wed Sep 19 10:31:21 MST 2007
If you want parametric solutions (rather than a mesh approximation),
your best bet is probably to calculate the intersections yourself, and
generate contact joints based on your calculations. Sphere contained in
cylinder is fairly simple to solve analytically -- but if you built an
"inverted cylinder" geom, you'd have to handle rays, boxes, trimeshes,
and a few other kinds of geoms, too.
There is nothing in ODE that forces you to use dCollide. You can create
collision joints from data that you calculate yourself.
Benoit Forestier wrote:
> firstly, i would like to apologize for my poor english.
> I would like to simulate the motion (and collisions) of spheres within an
> empty cylinder.
> from what i saw in the user guide, there is no geom type i can use to
> perform that kind of calculation.
> has anybody heard about any quadratic plane geom class (i.e. a plane with
> equation of the form ax^2 + by^2 + cz^2 + dxy + exz + fyz + gx + hy + iz + j
> = 0)?
> should i build my own class?
> is there any other way to model a cylindrical vessel?
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