 CGAL 5.5 - Polygon Mesh Processing
PMPHolefillingVisitor Concept Reference

## Definition

The concept PMPHolefillingVisitor defines the requirements for the visitor used in hole-filling-related functions . The hole filling may use a 2D constrained triangulation for almost planar holes (planar phase). If that is not appropriate or fails it may use an algorithm with a quadratic running time relying on the 3D Delaunay triangulation (quadratic phase). If that fails, it uses an algorithm with cubic running time (cubic phase).

Refines:
CopyConstructible
Has Models:
CGAL::Polygon_mesh_processing::Hole_filling::Default_visitor.

## Public Member Functions

void start_planar_phase () const
called when the planar hole filling algorithm starts.

void end_planar_phase (bool success) const
called when the planar hole filling algorithm stops. More...

called when the algorithm with quadratic running time starts. More...

called at each step. More...

called when the algorithm with quadratic running time ends. More...

void start_cubic_phase (std::size_t n) const
called when the algorithm with cubic running time starts. More...

void cubic_step () const
called at each step. This will be called n times.

void end_cubic_phase () const
called when the algorithm with cubic running time ends.

void start_refine_phase ()
called before refining the triangulation of the hole (triangulate_and_refine_hole() and triangulate_refine_and_fair_hole() only)

void end_refine_phase ()
called after having refined the triangulation of the hole (triangulate_and_refine_hole() and triangulate_refine_and_fair_hole() only)

void start_fair_phase ()
called before fairing the triangulation of the hole (triangulate_refine_and_fair_hole() only)

void end_fair_phase ()
called after having faired the triangulation of the hole (triangulate_refine_and_fair_hole() only)

## ◆ end_planar_phase()

 void PMPHolefillingVisitor::end_planar_phase ( bool success ) const

called when the planar hole filling algorithm stops.

Parameters
 success true when the hole could be filled in this phase.

 void PMPHolefillingVisitor::end_quadratic_phase ( bool success ) const

called when the algorithm with quadratic running time ends.

Parameters
 success true when the hole could be filled in this phase.

called at each step.

There may be less than n calls as this is an upperbound.

## ◆ start_cubic_phase()

 void PMPHolefillingVisitor::start_cubic_phase ( std::size_t n ) const

called when the algorithm with cubic running time starts.

Parameters
 n the upperbound on the number of steps