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CGAL::Is_y_monotone_2<Traits>

Definition

Function object class that tests whether a sequence of points represents a y-monotone polygon or not.

#include <CGAL/polygon_function_objects.h>

Is Model for the Concepts

PolygonIsValid

Creation

Is_y_monotone_2<Traits> f ( Traits t);
Traits is a model of the concept IsYMonotoneTraits_2

Operations

template<class InputIterator>
bool f ( InputIterator first , InputIterator beyond )
returns true iff the points of type Traits::Point_2 in the range [first,beyond) define a y-monotone polygon.

See Also

CGAL::convex_partition_is_valid_2
CGAL::Partition_is_valid_traits_2<Traits, PolygonIsValid>

Implementation

This test requires O(n) time for a polygon with n vertices.

Next: approx_convex_partition_2
Navigation: Up   Table of Contents   Package Overview   Bibliography   Index   Title   Acknowledging CGAL
CGAL Open Source Project. Release 3.6.1. 29 June 2010.