CGAL 6.1.1 - Triangulated Surface Mesh Simplification

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StopPredicate Concept Reference
Reference Manual » Concepts

## Definition

The concept `StopPredicate` describes the requirements for the predicate which indicates if the simplification process must finish.

Has models
  `CGAL::Surface_mesh_simplification::Edge_count_stop_predicate<TriangleMesh>`
  `CGAL::Surface_mesh_simplification::Face_count_stop_predicate<TriangleMesh>`
  `CGAL::Surface_mesh_simplification::Edge_count_ratio_stop_predicate<TriangleMesh>`
  `CGAL::Surface_mesh_simplification::Face_count_ratio_stop_predicate<TriangleMesh>`
  `CGAL::Surface_mesh_simplification::Edge_length_stop_predicate<FT>`

## Operations
bool | operator() (const Edge_profile::FT &current_cost, const Edge_profile &profile, const Edge_profile::edges_size_type initial_edge_count, const Edge_profile::edges_size_type current_edge_count) const
| This predicate is called each time an edge is selected for processing, before it is collapsed.

## Member Function Documentation

## ◆ operator()()

bool StopPredicate::operator() | ( | const Edge_profile::FT & | current_cost,
|  | const Edge_profile & | profile,
|  | const Edge_profile::edges_size_type | initial_edge_count,
|  | const Edge_profile::edges_size_type | current_edge_count
| ) |  | const

This predicate is called each time an edge is selected for processing, before it is collapsed.

`current_edge_cost` is the cost of the selected edge. `initial_edge_count` and `current_edge_count` are the number of initial and current edges. If the return value is `true` the simplification terminates before processing the edge, otherwise it continues normally.