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Re: [cgal-discuss] View 3d Point as 2d?


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  • From: Sebastien Loriot <>
  • To:
  • Subject: Re: [cgal-discuss] View 3d Point as 2d?
  • Date: Tue, 26 Jul 2022 17:11:17 +0200
  • Authentication-results: mail2-smtp-roc.national.inria.fr; spf=None ; spf=Pass ; spf=None
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The easiest option I see is to convert your points in 2D.

You could use the `extrude_mesh()` function
https://doc.cgal.org/latest/Polygon_mesh_processing/group__PMP__meshing__grp.html#ga300c5eedd7d62bbd10ad2655405562f4

but it is like killing a fly with a hammer :)

Best,

Sebastien.

On 7/20/22 20:02, KL ( via cgal-discuss Mailing List) wrote:
Hi,

Context: boolean operations.

I have a 3D surface mesh. The z component, at the moment I need to compute my boolean operation, is equal to 0.

But the issue is that corefine need a closed shape, which my flat surfaces aren't obviously.

2D boolean ops won't accept a 3D point either.

I would like to avoid to recreate a 2d surface mesh for this operation.

How could I achieve that?


Thanks
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