CGAL users discussion list

[Bernhard Kornberger <>]

Am 2015-01-22 um 17:22 schrieb Marius Kintel:
> On Jan 21, 2015, at 06:06 AM, Bernhard Kornberger 
> <>
>  wrote:
>
> > To this end they needed to patch CGAL to achieve thread safety for
> > the Exact_predicates_exact_constructions_kernel. Now I'd like to
> > contribute this patch and possibly start a discussion about it:
> Sounds very cool. The lack of thread safeness is a major concern for us 
> (OpenSCAD) when using CGAL.
> I’m not familiar with the inner workings of the shared objects in CGAL, but 
> do you think your patch will make it possible to execute multiple Nef 
> polyhedron CSG operations in parallel (i.e. multiple threads reading from the 
> same operands but producing different output) ?
>
> Kind Regards,
>
>   -Marius

The patch makes the basic number type thread safe, i.e. parallel
operations on basic objects (Point, Segment, Plane, ...) like
orientation tests and intersections will work now. I don't know
the NEF package very well but maybe it benefits.

Best
Bernhard Kornberger





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