CGAL 4.7 - 2D Straight Skeleton and Polygon Offsetting: VertexContainer_2 Concept Reference

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CGAL 4.7 - 2D Straight Skeleton and Polygon Offsetting

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VertexContainer_2 Concept Reference
Concepts

## Definition

Introduction

A model for the `VertexContainer_2` concept defines the requirements for a resizable container of 2D points. It is used to output the offset polygons generated by the `Polygon_offset_builder_2<Ssds,Gt,Container>` class.

Has Models:

  CGAL::Polygon_2

  Any standard `BackInsertionSequence`, such as std::vector, std::list or std::deque, with a `value_type` being a model of the `Kernel::Point_2` concept.

## Types

typedef unspecified_type | Point_2
| A 2D point type used to represent a vertex. More...
typedef unspecified_type | size_type
| A unsigned integral type that can represent the number of vertices in the container.

## Creation

| VertexContainer_2 ()
| Default constructor.
size_type | size () const
| Returns the number of vertices in the container.
void | push_back (Point_2 const &v) const
| Adds the vertex v to the container, resizing its capacity if required.

## Member Typedef Documentation

typedef unspecified_type VertexContainer_2::Point_2

A 2D point type used to represent a vertex.

Must be a model of the `Kernel::Point_2` concept