[OpenSCAD] Unusual hull() and minkowski modelling

Ronaldo rcmpersiano at gmail.com
Sun Jun 19 08:34:04 EDT 2016

doug.moen wrote
> This stuff is really cool, Ronaldo.
> I was familiar with the morph() operation from other CSG systems, but I
> just assumed it was impossible in OpenSCAD. So I'm impressed. I notice it
> only works correctly if scale(0) returns a 0D point (as opposed to
> returning nothing).

Although mophing operator is appealing, singularities may be raised by it
independent on how it is defined. Imagine what happens when morphing a solid
with disjoint parts with another one with just one part. Or morphing a torus
and a sphere. For some value of t, the morphing will be a non-manifold. 

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