om::math::Plane2D< T > Class Template Reference

A class that represents a plane in 2D space. More...

#include <omPlane2D.h>

Public Member Functions
	Plane2D ()
	Create a plane in 2D space with the normal pointing along the positive Y axis with offset = 0. More...
	Plane2D (const VectorND< T, 2 > &planeNormal, T planeOffset)
	Create a plane in 2D space with the specified normal and offset from the origin. More...
	Plane2D (const VectorND< T, 2 > &p1, const VectorND< T, 2 > &p2)
	Create a plane in 2D space from two points in that plane. More...
T	getDistanceTo (const VectorND< T, 2 > &point) const
	Get the perpendicular distance from the specified point to the plane. More...
T	getSignedDistanceTo (const VectorND< T, 2 > &point) const
	Get the perpendicular distance from the specified point to the plane. More...
VectorND< T, 2 >	getProjection (const VectorND< T, 2 > &point) const
	Return the projection of the given point onto the plane. More...
VectorND< T, 2 >	getProjectionNormalized (const VectorND< T, 2 > &point) const
	Return the projection of the given point onto the plane. More...
VectorND< T, 2 >	getReflection (const VectorND< T, 2 > &point) const
	Get the reflection of a point over the plane. More...
VectorND< T, 2 >	getReflectionNormalized (const VectorND< T, 2 > &point) const
	Get the reflection of a point over the plane. More...
Plane2D	normalize () const
	Normalize the plane's normal vector and correct the offset to match. More...
Plane2D	operator- () const
	Return the plane with the opposite normal vector and offset. More...

Public Attributes
VectorND< T, 2 >	normal
	A vector perpendicular to the plane. More...
T	offset
	The distance that the plane is offset from the origin. More...

Detailed Description

template<typename T>
class om::math::Plane2D< T >

A class that represents a plane in 2D space.

It uses the normal and offset plane representation as it is the most universally useful in computational mathematics, especially relating to graphics and geometry.

Constructor & Destructor Documentation

template<typename T >

om::math::Plane2D< T >::Plane2D ( )

inline

Create a plane in 2D space with the normal pointing along the positive Y axis with offset = 0.

template<typename T >

om::math::Plane2D< T >::Plane2D ( const VectorND< T, 2 > &  planeNormal, T  planeOffset  )

inline

Create a plane in 2D space with the specified normal and offset from the origin.

template<typename T >

om::math::Plane2D< T >::Plane2D ( const VectorND< T, 2 > &  p1, const VectorND< T, 2 > &  p2  )

inline

Create a plane in 2D space from two points in that plane.

Member Function Documentation

template<typename T >

T om::math::Plane2D< T >::getDistanceTo ( const VectorND< T, 2 > &  point ) const

inline

Get the perpendicular distance from the specified point to the plane.

template<typename T >

T om::math::Plane2D< T >::getSignedDistanceTo ( const VectorND< T, 2 > &  point ) const

inline

Get the perpendicular distance from the specified point to the plane.

template<typename T >

VectorND<T,2> om::math::Plane2D< T >::getProjection ( const VectorND< T, 2 > &  point ) const

inline

Return the projection of the given point onto the plane.

template<typename T >

VectorND<T,2> om::math::Plane2D< T >::getProjectionNormalized ( const VectorND< T, 2 > &  point ) const

inline

Return the projection of the given point onto the plane.

The plane is assumed to have a normal vector of unit length. This results in a significantly faster function, however the results are meaningless if the precondition is not met.

template<typename T >

VectorND<T,2> om::math::Plane2D< T >::getReflection ( const VectorND< T, 2 > &  point ) const

inline

Get the reflection of a point over the plane.

template<typename T >

VectorND<T,2> om::math::Plane2D< T >::getReflectionNormalized ( const VectorND< T, 2 > &  point ) const

inline

Get the reflection of a point over the plane.

template<typename T >

Plane2D om::math::Plane2D< T >::normalize ( ) const

inline

Normalize the plane's normal vector and correct the offset to match.

template<typename T >

Plane2D om::math::Plane2D< T >::operator- ( ) const

inline

Return the plane with the opposite normal vector and offset.

This plane is mathematically the same as the original plane.

Member Data Documentation

template<typename T >

VectorND<T,2> om::math::Plane2D< T >::normal

A vector perpendicular to the plane.

template<typename T >

T om::math::Plane2D< T >::offset

The distance that the plane is offset from the origin.

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

• omPlane2D.h