Symmetric Difference Functions

Each one of these functions computes the symmetric difference between two given polygons p1 and p2, and inserts the resulting polygons with holes into an output container through the output iterator oi. The value type of the OutputIterator is either Polygon_with_holes_2 or General_polygon_with_holes_2.

The signature of the function is:

• OutputIterator symmetric_difference(const Type1 & p1, const Type2 & p2, OutputIterator oi);

Parameters

The types of the parameters of the symmetric_difference() function are any of the following combinations.

Arg 1 type	Arg 2 type
Polygon_2	Polygon_2
Polygon_2	Polygon_with_holes_2
Polygon_with_holes_2	Polygon_2
Polygon_with_holes_2	Polygon_with_holes_2
General_polygon_2	General_polygon_2
General_polygon_2	General_polygon_with_holes_2
General_polygon_with_holes_2	General_polygon_2
General_polygon_with_holes_2	General_polygon_with_holes_2

See also

CGAL::do_intersect()

CGAL::intersection()

CGAL::join()

CGAL::difference()

Functions
OutputIterator	CGAL::symmetric_difference (const Type1 &p1, const Type2 &p2, OutputIterator oi)
template<class Kernel , class Container , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (const Polygon_2< Kernel, Container > &p1, const Polygon_2< Kernel, Container > &p2, OutputIterator oi)
template<class Kernel , class Container , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (const Polygon_2< Kernel, Container > &p1, const Polygon_with_holes_2< Kernel, Container > &p2, OutputIterator oi)
template<class Kernel , class Container , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (const Polygon_with_holes_2< Kernel, Container > &p1, const Polygon_2< Kernel, Container > &p2, OutputIterator oi)
template<class Kernel , class Container , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (const Polygon_with_holes_2< Kernel, Container > &p1, const Polygon_with_holes_2< Kernel, Container > &p2, OutputIterator oi)
template<class Traits , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (const General_polygon_2< Traits > &p1, const General_polygon_2< Traits > &p2, OutputIterator oi)
template<class Traits , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (const General_polygon_with_holes_2< General_polygon_2< Traits > > &p1, const General_polygon_2< Traits > &p2, OutputIterator oi)
template<class Traits , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (const General_polygon_2< Traits > &p1, const General_polygon_with_holes_2< General_polygon_2< Traits > > &p2, OutputIterator oi)
template<class Polygon , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (const General_polygon_with_holes_2< Polygon > &p1, const General_polygon_with_holes_2< Polygon > &p2, OutputIterator oi)
template<class InputIterator , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (InputIterator begin, InputIterator end, OutputIterator oi)
	computes the symmetric difference of the general polygons (or general polygons with holes) in the given range. More...
template<class InputIterator1 , class InputIterator2 , class OutputIterator >
OutputIterator	CGAL::symmetric_difference (InputIterator1 pgn_begin1, InputIterator1 pgn_end1, InputIterator2 pgn_begin2, InputIterator2 pgn_end2, OutputIterator oi)
	computes the symmetric difference of the general polygons and general polygons with holes in the given two ranges. More...

Function Documentation

symmetric_difference() [1/2]

template<class InputIterator , class OutputIterator >

OutputIterator CGAL::symmetric_difference	(	InputIterator	begin,
		InputIterator	end,
		OutputIterator	oi
	)

#include <CGAL/Boolean_set_operations_2.h>

computes the symmetric difference of the general polygons (or general polygons with holes) in the given range.

A point is contained in the symmetric difference, if and only if it is contained in an odd number of input polygons. (The value type of the input iterator is used to distinguish between the two.) The result, represented by a set of general polygon with holes, is inserted into an output container through a given output iterator oi. The output iterator is returned. The value type of the OutputIterator is Traits::Polygon_with_holes_2.

symmetric_difference() [2/2]

template<class InputIterator1 , class InputIterator2 , class OutputIterator >

OutputIterator CGAL::symmetric_difference	(	InputIterator1	pgn_begin1,
		InputIterator1	pgn_end1,
		InputIterator2	pgn_begin2,
		InputIterator2	pgn_end2,
		OutputIterator	oi
	)

#include <CGAL/Boolean_set_operations_2.h>

computes the symmetric difference of the general polygons and general polygons with holes in the given two ranges.

A point is contained in the symmetric difference, if and only if it is contained in an odd number of input polygons. The result, represented by a set of general polygon with holes, is inserted into an output container through a given output iterator oi. The output iterator is returned. The value type of the OutputIterator is Traits::Polygon_with_holes_2.