You can look at the Arrangement_on_surface_2 code to see how it is employed.

Perhaps the Arrangement_on_surface_2 data structure is closer to what

you need that the underlying HDS anyway.

Quoting "Sandeep Dey" <

[hidden email]>:

> Hi,

>

> I have some basic questions on HDS default provided in CGAL.

> I was planning to have a half edge default data structure instance and do

> some basic operations on it.

>

> 1. Insert Vertex objects in to it, by specifying coordinates as points

> (Point_2) one by one.

> However, I was unable to find a way to construct a Vertex from a Point,

> which prevented me from using vertices_push_back() method of HDS decorator.

> Is there a Vertex class given with its constructor? I can't find one.

>

> 2. Same is with the faces_push_back() method that takes faces() as input

> argument, I cannot find, how is a face defined?

> How can we store a rectangular face that has four vertices , using HDS?

>

>

> Can anyone suggest how to use the halfedge data structure from scratch.

> Is there any tutorial showing how to use HDS?

>

> Thanks and Best regards,

>

> Sandeep.

>

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