CGAL 5.6.3 - 2D Straight Skeleton and Polygon Offsetting

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StraightSkeletonFace_2 Concept Reference
2D Straight Skeleton and Polygon Offsetting Reference » Concepts

## Definition

Refines
  `HalfedgeDSFace`

The concept `StraightSkeletonFace_2` describes the requirements for the face type of the `StraightSkeleton_2` concept. It is a refinement of the `HalfedgeDSFace` concept with support for storage of the incident halfedge.

Has Models:
  `CGAL::Straight_skeleton_face_base_2`

See also
  `StraightSkeletonVertex_2`
  `StraightSkeletonHalfedge_2`

## Creation
| StraightSkeletonFace_2 ()
| Default constructor
| StraightSkeletonFace_2 (int id)
| constructs a face with ID number `id`

## Access Functions
int | id () const
| The ID of the face.