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Re: [cgal-discuss] Get coordinates from face vertex in a Polyhedron


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  • From: "Sebastien Loriot (GeometryFactory)" <>
  • To:
  • Subject: Re: [cgal-discuss] Get coordinates from face vertex in a Polyhedron
  • Date: Fri, 24 May 2019 09:36:24 +0200
  • Authentication-results: mail2-smtp-roc.national.inria.fr; spf=None ; spf=Pass ; spf=None
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face->halfedge()->vertex()->point().x() // first vertex
face->halfedge()->next()->vertex()->point().x() // second vertex
face->halfedge()->next()->next()->vertex()->point().x() // third vertex
etc...

This is based on a halfedge data structure.

If you are using Surface_mesh you should do:
sm.point( target(sm.halfedge(face), sm) ).x()

Sebastien.

On 5/23/19 6:12 PM, cisant wrote:
The title speaks for itself. I need help on how to get the XYZ coordinates of
vertex of each face of a Polyhedron.

I think on a logic working like:

face[0].vertex(1).x();
face[0].vertex(1).y();
face[0].vertex(1).z();

This should be the way to get the coordinates of second vertex on first
face;



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