yade-dev team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

> I was surprised by the elegance of using unsheared coordinates without
> changing the collider. It limits maximum shear, though, as  the 1/cos(φ)
> term grows without bounds.
>
> It could be changed, by computing the physical space x/y/z coordinates
> in the collider.
>
>   

I was expecting comparisons using physical x/y/z actually, but it sounds 
consistent.
Is the "angle" taking into account mixed modes of deformation (imagine 
shearing between two parallel planes with variable distance between planes)?

What would you think of defining boxes like this, without distorsion of 
halfSize :

aabb->min = shear*wrap(unshearPt(se3.position))-halfSize

It would need a small change in the collider, but for something simpler 
(no wraping).

Bruno




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