CGAL users discussion list

[Sebastien Loriot <>]

Yes.
Also the example from this PR could also be a solution:
https://github.com/CGAL/cgal/pull/6377


Sebastien.


On 5/17/22 11:49, Marco Feder ( via cgal-discuss Mailing 
List) wrote:
> Thanks Sebastien. Okay, that’s clear now. So, the only viable option 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> , right ?
>
> Best,
> Marco
>
> > On 17 May 2022, at 11:38, Sebastien Loriot < 
> > <>> wrote:
> >
> > 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> 
> > > > > <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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> > > > > <https://sympa.inria.fr/sympa/info/cgal-discuss>>
> > > > --
> > > > Andreas Fabri, PhD
> > > > Chief Officer, GeometryFactory
> > > > Editor, The CGAL Project
> > > >
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