kn Namespace Reference

Classes
class	GeometryException
	Exception thrown in case of geometry error. More...
Functions
std::ostream &	operator<< (std::ostream &stream, const GeometryException &err)
	Operator << for GeometryException.
template<typename T >
kn::Vector3< T >	barycentricToPoint (const kn::Vector3< T > &pointA, const kn::Vector3< T > &pointB, const kn::Vector3< T > &pointC, const kn::Vector2< T > &bary)
	convert barycentric coordinates of a triangle in world-space coordinates
std::pair< kn::Vector2d, double >	intersectTriangle (const kn::Vector3d &pointA, const kn::Vector3d &pointB, const kn::Vector3d &pointC, const kn::Vector3d &rayDirection,const kn::Vector3d &rayOrigin)
	Intersect a triangle If the returned distance is negative, no intersection was found.
std::pair< kn::Vector3d, double >	intersectOBB (const kn::Vector3d &center, const kn::Vector3d a[3], const kn::Vector3d &h, const kn::Vector3d &rayDirection,const kn::Vector3d &rayOrigin)
	Intersect an Oriented Bounding Box If the returned distance is negative, no intersection was found.
std::pair< kn::Vector3d, double >	intersectSphere (const kn::Vector3d &spherePosition, double sphereRadius, const kn::Vector3d &rayDirection,const kn::Vector3d &rayOrigin)
	Intersect a sphere If the returned distance is negative, no intersection was found.
Variables
static const float	MAX_FLOAT = std::numeric_limits<float>::max()
static const float	MIN_FLOAT = std::numeric_limits<float>::min()

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Function Documentation

template<typename T >

kn::Vector3<T> kn::barycentricToPoint	(	const kn::Vector3< T > &	pointA,
		const kn::Vector3< T > &	pointB,
		const kn::Vector3< T > &	pointC,
		const kn::Vector2< T > &	bary
	)			[inline]

convert barycentric coordinates of a triangle in world-space coordinates

Parameters:

	pointA	First point of the triangle
	pointB	Second point of the triangle
	pointC	Third point of the triangle
	bary	Barycentric coordinates

Returns:

World-space coordinates

Definition at line 58 of file GeometryTools.hpp.

std::pair< kn::Vector3d, double > kn::intersectOBB	(	const kn::Vector3d &	center,
		const kn::Vector3d	a[3],
		const kn::Vector3d &	h,
		const kn::Vector3d &	rayDirection,
		const kn::Vector3d &	rayOrigin
	)

Intersect an Oriented Bounding Box If the returned distance is negative, no intersection was found.

Parameters:

	center	Center of the bounding box
	a	Normalized side directions (x,y,z)
	h	Positive half-lengths
	rayDirection	Direction of the intersection ray
	rayOrigin	Origin of the ray

Returns:

Poistion of the intersection and distance to the intersection

Definition at line 95 of file Intersection.cpp.

std::pair< kn::Vector3d, double > kn::intersectSphere	(	const kn::Vector3d &	spherePosition,
		double	sphereRadius,
		const kn::Vector3d &	rayDirection,
		const kn::Vector3d &	rayOrigin
	)

Intersect a sphere If the returned distance is negative, no intersection was found.

Parameters:

	spherePosition	position of the center of the sphere
	radius	radius of the sphere
	rayDirection	Direction of the intersection ray
	rayOrigin	Origin of the ray

Returns:

Poistion of the intersection and distance to the intersection

Definition at line 123 of file Intersection.cpp.

std::pair< kn::Vector2d, double > kn::intersectTriangle	(	const kn::Vector3d &	pointA,
		const kn::Vector3d &	pointB,
		const kn::Vector3d &	pointC,
		const kn::Vector3d &	rayDirection,
		const kn::Vector3d &	rayOrigin
	)

Intersect a triangle If the returned distance is negative, no intersection was found.

Parameters:

	pointA	First point of the triangle
	pointB	Second point of the triangle
	pointC	Third point of the triangle
	rayDirection	Direction of the intersection ray
	rayOrigin	Origin of the ray

Returns:

Barycentric coordinates of the intersection and distance to the intersection

Definition at line 48 of file Intersection.cpp.

std::ostream& kn::operator<<	(	std::ostream &	stream,
		const GeometryException &	err
	)			[inline]

Operator << for GeometryException.

Parameters:

stream

output stream GeometryException to print

Returns:

output stream

Definition at line 98 of file GeometryException.hpp.

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Variable Documentation

const float kn::MAX_FLOAT = std::numeric_limits<float>::max() [static]

Definition at line 42 of file GeometryTools.hpp.

const float kn::MIN_FLOAT = std::numeric_limits<float>::min() [static]

Definition at line 47 of file GeometryTools.hpp.