CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

IIUC your problem you can use the arrangement package:

https://doc.cgal.org/latest/Arrangement_on_surface_2/

by considering the unbounded face.

Here is a small example on how to iterator over halfedges of the holes 
of the unbounded face.

https://gist.github.com/sloriot/5a2f69951c8902948392c9368cc23ab4

Sebastien.



On 06/11/2018 04:15 PM, Anne wrote:
> HI,
>
> Could you please give a suggestion for the task that:
> - I have a list of line segments. I need to find out faces (cells) generated
> by intersecting the segments. Could you suggest me which functions should I
> use to implement the cell decomposition by intersecting lines and get
> information of the cells (faces, vertices, edges) .
>
> - Is it possible to achieve adjacent relation between cells (for instance,
> cells i is in adjacent (neighbour) with ceill j,k, m etc)?
>
> Could you please suggest which package and function should I use to complete
> this task? I am new to CGAL. Thank you so much. I appreciate any comment &
> suggestion.
>
> Best regards,
> Anne
>
>
>
> --
> Sent from: http://cgal-discuss.949826.n4.nabble.com/