Arak::QueryPointIndex::RecolorQuadrilateralFunction Class Reference

#include <query_point.hpp>

List of all members.

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Detailed Description

This functor is used to recolor all query points inside a quadrilateral region (that is not necessarily convex).

For efficiency this functor represents such quadrilaterals as the union or difference between two triangles.

Definition at line 241 of file query_point.hpp.

Public Member Functions
	RecolorQuadrilateralFunction (const Geometry::Triangle &t1, const Geometry::Triangle &t2)
	Constructor.
void	operator() (const QueryPoint &q)
	Recolors the supplied query point if it lies in the closure of the quadrilateral.
Private Attributes
const Geometry::Triangle *	t1
	A pointer to the first triangle used to represent the quadrilateral; it must consist of any three of the quadrilateral's vertices.
const Geometry::Triangle *	t2
	A pointer to the second triangle used to represent the quadrilateral; it must have two adjacent vertices of t1 and the quadrilateral vertex that is not in t1.

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Constructor & Destructor Documentation

Arak::QueryPointIndex::RecolorQuadrilateralFunction::RecolorQuadrilateralFunction (  const Geometry::Triangle &  t1, const Geometry::Triangle &  t2 )  [inline]

Constructor. Parameters: t1  the first triangle used to describe the quadrilateral; it must consist of any three vertices t2  the second triangle used to describe the quadrilateral; it must consist of any two adjacent vertices in t1 and the remaining vertex of the quadrilateral Definition at line 278 of file query_point.hpp. References Arak::Geometry::Triangle.

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Member Function Documentation

void Arak::QueryPointIndex::RecolorQuadrilateralFunction::operator() (  const QueryPoint &  q  )  [inline]

Recolors the supplied query point if it lies in the closure of the quadrilateral. Parameters: q  the query point Todo: The technique used to recolor points does not work for points on the boundary of a quadrilateral that is not simple. Definition at line 288 of file query_point.hpp. References Arak::QueryPoint::recolor(), t1, and t2.

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Member Data Documentation

const Geometry::Triangle* Arak::QueryPointIndex::RecolorQuadrilateralFunction::t1 [private]

A pointer to the first triangle used to represent the quadrilateral; it must consist of any three of the quadrilateral's vertices. We use a pointer here so the default assignment operator works for objects of this type; this is required to use this functor in combination with the boost::function_output_iterator adaptor. Definition at line 253 of file query_point.hpp. Referenced by operator()().

const Geometry::Triangle* Arak::QueryPointIndex::RecolorQuadrilateralFunction::t2 [private]

A pointer to the second triangle used to represent the quadrilateral; it must have two adjacent vertices of t1 and the quadrilateral vertex that is not in t1. We use a pointer here so the default assignment operator works for objects of this type; this is required to use this functor in combination with the boost::function_output_iterator adaptor. Definition at line 263 of file query_point.hpp. Referenced by operator()().

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The documentation for this class was generated from the following file:

• query_point.hpp

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