CODEWITHSUNDEEP
c++cgal
MPA
MPA

Reputation: 2038

CGAL loop over facets sharing an edge

Hello fellow Stackers,

I would like to write a function that loops over all finite edges of a CGAL regular 3D triangulation, and calculates the angles between all pairs of faces (facets) sharing that edge. In the reference guide I found a method called incident_facets that should give the circulator to all facets incident to a specific edge. I'm not 100% certain that that is the method I'm looking for, but most of all, I have no idea how to use it. Could anyone perhaps show me how it works in practice? Also, does anyone know if there already is a built-in CGAL method that loops over all finite facet pairs, so I don't have to write it out explicitly?

Thanks

Upvotes: 1

Views: 406

Answers (1)

Monique Teillaud
Monique Teillaud

Reputation: 124

no, there no built-in CGAL method that loops over all finite facet pairs.

You can find an example for the use of a circulator there http://doc.cgal.org/latest/Triangulation_2/index.html#title9

In your case, it could be easier to iterate on all finite cells and look at the 6 pairs of facets in each tetrahedron.

best,

Upvotes: 1

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