CGAL 4.7 - 2D Regularized Boolean Set-Operations: GeneralPolygonSetDcelFace Concept Reference

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CGAL 4.7 - 2D Regularized Boolean Set-Operations

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GeneralPolygonSetDcelFace Concept Reference
Concepts

## Definition

A face record in a Dcel data structure used by the `General_polygon_set_2` and `Polygon_set_2` class-templates to represent the underlying internal `Arrangement_2` data structure.

Refines:
  `ArrangementDcelFace`

See Also
  `ArrangementDcel`
  `ArrangementDcelVertex`
  `ArrangementDcelHalfedge`

## Creation

| Gps_dcel_face ()
| default constructor.
void | assign (const Self &other)
| assigns `f` with the contents of the `other` face.

## Access Functions

bool | contained () const
| returns `true` if the face is contained in the general-polygon set, and `false` otherwise.
bool | visited ()
| returns `true` if the face has been visited, and `false` otherwise. More...

## Modifiers

void | set_contained (bool flag)
| marks the face as contained (if `flag` is `true`), or as a hole (if it is `false`).
void | set_visited (bool flag)
| marks the face as visited (if `flag` is `true`), or as not visited (if it is `false`). More...

## Member Function Documentation

void GeneralPolygonSetDcelFace::set_visited | ( | bool | flag) |  |

marks the face as visited (if `flag` is `true`), or as not visited (if it is `false`).

This is used internally by the some of the operations of the `General_polygon_set_2` class that traverse the arrangement faces.

bool GeneralPolygonSetDcelFace::visited | ( | ) |  |

returns `true` if the face has been visited, and `false` otherwise.

This is used internally by the some of the operations of the `General_polygon_set_2` class that traverse the arrangement faces.