yade-dev team mailing list archive

[Václav Šmilauer <eudoxos@xxxxxxxx>]

> that's the point. Something is wrong about the architecture of code,
> because it encourages bad behavior, like yours. What's wrong, how to
> fix it?
>    
What is questionable in the first place is that sphere-* contact is 
represented as sphere-sphere contact (sphere-facet, sphere-box).

I tried to fix that with Dem3DofGeom which already works quite fine for 
sphere-sphere and sphere-facet. It has virtual methods for getting 
deformations on the contact, therefore the constitutive law doesn't care 
if it is sphere-sphere or sphere-facet (but still can know it, would it 
be needed). If I have some time, I will also create incremental version 
of those, which will be basically SpheresContactGeometry for 
sphere-sphere and something similar for sphere-facet. Then it will be 
interesting to compare them peformancewise and precisionwise.

Vaclav