[OpenSCAD] Evaluating imported STL's

nop head nop.head at gmail.com
Fri Jun 17 02:20:30 EDT 2016


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.

On 17 June 2016 at 05:07, Ronaldo <rcmpersiano at gmail.com> wrote:

> Lucas,
>
> Although in Mathematics we can apply the operators convex hull and
> Minkowski
> sum to any set of sets. I did not saw until today how to do it in OpenSCAD.
> The properties and object you have summarized open up a whole set of
> possibilities to modelling with OpenSCAD. That is why a started a new
> thread
> a while ago showing some of them and to concentrate the discussion on the
> subject.
>
> Although hull() works well with 2D, 1D and 0D objects alone, the
> minkowski()
> on fact requires that at least one of the operands to be a real 3D object,
> and possibly a manifold. This seems to be a restriction of CGAL.
>
>
>
> --
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> http://forum.openscad.org/Evaluating-imported-STL-s-tp17682p17731.html
> Sent from the OpenSCAD mailing list archive at Nabble.com.
>
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