A generic triangle representation. More...

Public Member Functions
	Triangle (class BinaryInput &b)

	Triangle ()

	Triangle (const Point3 &v0, const Point3 &v1, const Point3 &v2)

	~Triangle ()

float	area () const

Point3	center () const
	Barycenter.

void	deserialize (class BinaryInput &b)

const Vector3 &	edge01 () const
	vertex[1] - vertex[0]

const Vector3 &	edge02 () const
	vertex[2] - vertex[0]

void	getBounds (class AABox &) const

void	getRandomSurfacePoint (Point3 &P, Vector3 &N=Vector3::ignore()) const

size_t	hashCode () const

bool	intersect (const class Ray &ray, float &distance, float baryCoord[3]) const
	Intersect the ray at distance less than distance.

const Vector3 &	normal () const

bool	operator== (const Triangle &other) const
	For two triangles to be equal they must have the same vertices in the same order.

const Plane &	plane () const

Vector3::Axis	primaryAxis () const

Point3	randomPoint () const
	Returns a random point in the triangle.

void	serialize (class BinaryOutput &b)

const Point3 &	vertex (int n) const
	0, 1, or 2

Friends
class	CollisionDetection

class	Ray

Detailed Description

A generic triangle representation.

This should not be used as the underlying triangle for creating models; it is intended for providing fast property queries but requires a lot of storage and is mostly immutable.

Constructor & Destructor Documentation

G3D::Triangle::Triangle ( class BinaryInput & b )

G3D::Triangle::Triangle ( )

G3D::Triangle::Triangle	(	const Point3 &	v0,
		const Point3 &	v1,
		const Point3 &	v2
	)

G3D::Triangle::~Triangle ( )

Member Function Documentation

float G3D::Triangle::area ( ) const

Referenced by G3D::TriangleShape::area().

Point3 G3D::Triangle::center ( ) const

Barycenter.

Referenced by G3D::TriangleShape::center().

void G3D::Triangle::deserialize ( class BinaryInput & b )

const Vector3& G3D::Triangle::edge01 ( ) const

inline

vertex[1] - vertex[0]

Referenced by G3D::Ray::intersectionTime().

const Vector3& G3D::Triangle::edge02 ( ) const

inline

vertex[2] - vertex[0]

Referenced by G3D::Ray::intersectionTime().

void G3D::Triangle::getBounds ( class AABox & ) const

Referenced by G3D::TriangleShape::boundingAABox(), BoundsTrait< class G3D::Triangle * >::getBounds(), and BoundsTrait< class G3D::Triangle >::getBounds().

void G3D::Triangle::getRandomSurfacePoint	(	Point3 &	P,
		Vector3 &	N = `Vector3::ignore()`
	)		const

inline

Referenced by G3D::TriangleShape::getRandomSurfacePoint().

size_t G3D::Triangle::hashCode ( ) const

inline

Referenced by HashTrait< G3D::Triangle >::hashCode().

bool G3D::Triangle::intersect	(	const class Ray &	ray,
		float &	distance,
		float	baryCoord[3]
	)		const

Intersect the ray at distance less than distance.

Parameters

distance	Set to the maximum distance (can be G3D::inf()) to search for an intersection. On return, this is the smaller of the distance to the intersection, if one exists, and the original value.
baryCoord	If a triangle is hit before distance, a the barycentric coordinates of the hit location on the triangle. Otherwise, unmodified.