CGAL users discussion list

[Sebastien Loriot <>]

What Andreas meant is that you can clip using a 2D polygon but pure 2D 
Boolean operations will not work with this function.

Best,

Sebastien.

On 5/17/22 11:03, Marco Feder ( via cgal-discuss Mailing 
List) wrote:
> Thanks Andreas for your prompt reply. I tried the simplest possible 
> example, with two squares. The intersection is not performed, even if 
> the second clearly splits the first one and I don’t understand what is 
> the issue here. Am I missing something?
>
> See the attached mwe.
>
>
>
>
> Best,
> Marco
>
> > On 17 May 2022, at 09:53, Andreas Fabri 
> > < 
> > <>> wrote:
> >
> > What is important is that the quadrilateral splits the ball
> >
> > andreas
> >
> > On 5/17/2022 9:48 AM, Marco Feder ( 
> > <> via cgal-discuss Mailing List) wrote:
> > > Hi,
> > >
> > > I’m currently applying PMP::corefine_and_compute_boolean_operations() 
> > > to handle boolean operations between 3D (closed) surface meshes. Is 
> > > this supposed to work with 2D objects, too? For instance, I have two 
> > > Surface_Mesh describing a ball and a quadrilateral and I need their 
> > > intersection. To my understanding, the issue here is that those two 
> > > are not *closed*, hence corefine_and_compute_boolean_operations 
> > > should not work. Is that correct?
> > >
> > > If so, the only option I see is to use 
> > > https://doc.cgal.org/latest/Boolean_set_operations_2/index.html 
> > > <https://doc.cgal.org/latest/Boolean_set_operations_2/index.html> , 
> > > but I’d like to hear your opinion about this.
> > >
> > >
> > > Best regards,
> > > Marco
> > >
> > >
> > >
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> > --
> > Andreas Fabri, PhD
> > Chief Officer, GeometryFactory
> > Editor, The CGAL Project
> >
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