[OpenSCAD] Evaluating imported STL's

Ronaldo rcmpersiano at gmail.com
Fri Jun 17 16:27:34 EDT 2016

nophead wrote
> scale(0) doesn't make a single point. It shrinks the shape to zero size so
> all its vertices are coincident and then it is not a manifold hence CGAL
> doesn't like it.

I checked the assumption by substituting the cube by a sphere with $fn=256.
There were no significant increase in processing time. So I think the
vertices are collapsed to a point. 

Besides, although CGAL doesn't like non-manifold objects, the whole process
works with this version. 

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