Functions
void	GlobalInit ()

double	Orient2DInexact (const double pa, const double pb, const double *pc)

double	Orient2D (const double pa, const double pb, const double *pc)

double	Orient2DOrigin (double ax, double ay, double bx, double by)

double	Orient3DInexact (const double PA, const double PB, const double PC, const double PD)

double	Orient3D (const double PA, const double PB, const double PC, const double PD)

double	Facing3D (const double PA, const double PB, const double PC, const double Direction)

double	Facing2D (const double PA, const double PB, const double *Direction)

double	InCircleInexact (const double PA, const double PB, const double PC, const double PD)

double	InCircle (const double PA, const double PB, const double PC, const double PD)

double	InSphereInexact (const double PA, const double PB, const double PC, const double PD, const double *PE)

double	InSphere (const double PA, const double PB, const double PC, const double PD, const double *PE)

float	Orient2DInexact (const float pa, const float pb, const float *pc)

float	Orient2D (const float pa, const float pb, const float *pc)

float	Orient2DOrigin (float ax, float ay, float bx, float by)

float	Orient3DInexact (const float PA, const float PB, const float PC, const float PD)

float	Orient3D (const float PA, const float PB, const float PC, const float PD)

float	Facing3D (const float PA, const float PB, const float PC, const float Direction)

float	Facing2D (const float PA, const float PB, const float *Direction)

float	InCircleInexact (const float PA, const float PB, const float PC, const float PD)

float	InCircle (const float PA, const float PB, const float PC, const float PD)

template<typename RealType >
RealType	Orient2 (const TVector2< RealType > &A, const TVector2< RealType > &B, const TVector2< RealType > &C)

template<typename RealType >
RealType	Orient2Origin (const TVector2< RealType > &A, const TVector2< RealType > &B)

template<typename RealType >
RealType	Orient3 (const TVector< RealType > &A, const TVector< RealType > &B, const TVector< RealType > &C, const TVector< RealType > &D)

template<typename RealType >
RealType	Facing2 (const TVector2< RealType > &A, const TVector2< RealType > &B, const TVector2< RealType > &Direction)

template<typename RealType >
RealType	Facing3 (const TVector< RealType > &A, const TVector< RealType > &B, const TVector< RealType > &C, const TVector< RealType > &Direction)

template<typename RealType >
RealType	InCircle2 (const TVector2< RealType > &A, const TVector2< RealType > &B, const TVector2< RealType > &C, const TVector2< RealType > &D)

template<typename RealType >
RealType	InSphere3 (const TVector< RealType > &A, const TVector< RealType > &B, const TVector< RealType > &C, const TVector< RealType > &D, const TVector< RealType > &E)

Function Documentation

◆ Facing2()

template<typename RealType >

RealType UE::Geometry::ExactPredicates::Facing2	(	const TVector2< RealType > &	A,
		const TVector2< RealType > &	B,
		const TVector2< RealType > &	Direction
	)

Returns: value w/ sign indicating whether the normal of line AB is facing Direction (and 0 if parallel) (i.e. the sign of -PerpCW(B-A) dot Dir)

◆ Facing2D() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::Facing2D	(	const double *	PA,
		const double *	PB,
		const double *	Direction
	)

◆ Facing2D() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::Facing2D	(	const float *	PA,
		const float *	PB,
		const float *	Direction
	)

◆ Facing3()

template<typename RealType >

RealType UE::Geometry::ExactPredicates::Facing3	(	const TVector< RealType > &	A,
		const TVector< RealType > &	B,
		const TVector< RealType > &	C,
		const TVector< RealType > &	Direction
	)

TVector-only version that can run in float or double

Returns: value w/ sign indicating whether triangle ABC is facing Direction, or 0 if it is parallel to Direction

◆ Facing3D() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::Facing3D	(	const double *	PA,
		const double *	PB,
		const double *	PC,
		const double *	Direction
	)

◆ Facing3D() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::Facing3D	(	const float *	PA,
		const float *	PB,
		const float *	PC,
		const float *	Direction
	)

◆ GlobalInit()

void GEOMETRYCORE_API UE::Geometry::ExactPredicates::GlobalInit ( )

Must be called once for exact predicates to work. Will be called by GeometryAlgorithmsModule startup, so you don't need to manually call this.

◆ InCircle() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::InCircle	(	const double *	PA,
		const double *	PB,
		const double *	PC,
		const double *	PD
	)

◆ InCircle() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::InCircle	(	const float *	PA,
		const float *	PB,
		const float *	PC,
		const float *	PD
	)

◆ InCircle2()

template<typename RealType >

RealType UE::Geometry::ExactPredicates::InCircle2	(	const TVector2< RealType > &	A,
		const TVector2< RealType > &	B,
		const TVector2< RealType > &	C,
		const TVector2< RealType > &	D
	)

TVector2-only version that can run in float or double

Returns: value indicating whether point D is inside, outside, or exactly on the circle passing through ABC Note: Sign of the result depends on the orientation of triangle ABC – Counterclockwise: Inside is positive Clockwise: Inside is negative

◆ InCircleInexact() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::InCircleInexact	(	const double *	PA,
		const double *	PB,
		const double *	PC,
		const double *	PD
	)

◆ InCircleInexact() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::InCircleInexact	(	const float *	PA,
		const float *	PB,
		const float *	PC,
		const float *	PD
	)

◆ InSphere()

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::InSphere	(	const double *	PA,
		const double *	PB,
		const double *	PC,
		const double *	PD,
		const double *	PE
	)

◆ InSphere3()

template<typename RealType >

RealType UE::Geometry::ExactPredicates::InSphere3	(	const TVector< RealType > &	A,
		const TVector< RealType > &	B,
		const TVector< RealType > &	C,
		const TVector< RealType > &	D,
		const TVector< RealType > &	E
	)

TVector-only version that can run in float or double

Returns: value indicating whether point E is inside, outside, or exactly on the sphere passing through ABCD Note: Sign of the result depends on the orientation of tetrahedron ABCD

◆ InSphereInexact()

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::InSphereInexact	(	const double *	PA,
		const double *	PB,
		const double *	PC,
		const double *	PD,
		const double *	PE
	)

◆ Orient2()

template<typename RealType >

RealType UE::Geometry::ExactPredicates::Orient2	(	const TVector2< RealType > &	A,
		const TVector2< RealType > &	B,
		const TVector2< RealType > &	C
	)

TVector2-only version that can run in float or double

Returns: value indicating which side of line AB point C is on, or 0 if ABC are collinear

◆ Orient2D() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient2D	(	const double *	pa,
		const double *	pb,
		const double *	pc
	)

◆ Orient2D() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient2D	(	const float *	pa,
		const float *	pb,
		const float *	pc
	)

◆ Orient2DInexact() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient2DInexact	(	const double *	pa,
		const double *	pb,
		const double *	pc
	)

◆ Orient2DInexact() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient2DInexact	(	const float *	pa,
		const float *	pb,
		const float *	pc
	)

◆ Orient2DOrigin() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient2DOrigin	(	double	ax,
		double	ay,
		double	bx,
		double	by
	)

◆ Orient2DOrigin() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient2DOrigin	(	float	ax,
		float	ay,
		float	bx,
		float	by
	)

◆ Orient2Origin()

template<typename RealType >

RealType UE::Geometry::ExactPredicates::Orient2Origin	(	const TVector2< RealType > &	A,
		const TVector2< RealType > &	B
	)

inline

◆ Orient3()

template<typename RealType >

RealType UE::Geometry::ExactPredicates::Orient3	(	const TVector< RealType > &	A,
		const TVector< RealType > &	B,
		const TVector< RealType > &	C,
		const TVector< RealType > &	D
	)

TVector-only version that can run in float or double

Returns: value indicating which side of triangle ABC point D is on, or 0 if ABCD are coplanar

◆ Orient3D() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient3D	(	const double *	PA,
		const double *	PB,
		const double *	PC,
		const double *	PD
	)

◆ Orient3D() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient3D	(	const float *	PA,
		const float *	PB,
		const float *	PC,
		const float *	PD
	)

◆ Orient3DInexact() [1/2]

double GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient3DInexact	(	const double *	PA,
		const double *	PB,
		const double *	PC,
		const double *	PD
	)

◆ Orient3DInexact() [2/2]

float GEOMETRYCORE_API UE::Geometry::ExactPredicates::Orient3DInexact	(	const float *	PA,
		const float *	PB,
		const float *	PC,
		const float *	PD
	)

Functions

Function Documentation

◆ Facing2()

◆ Facing2D() [1/2]

◆ Facing2D() [2/2]

◆ Facing3()

◆ Facing3D() [1/2]

◆ Facing3D() [2/2]

◆ GlobalInit()

◆ InCircle() [1/2]

◆ InCircle() [2/2]

◆ InCircle2()

◆ InCircleInexact() [1/2]

◆ InCircleInexact() [2/2]

◆ InSphere()

◆ InSphere3()

◆ InSphereInexact()

◆ Orient2()

◆ Orient2D() [1/2]

◆ Orient2D() [2/2]

◆ Orient2DInexact() [1/2]

◆ Orient2DInexact() [2/2]

◆ Orient2DOrigin() [1/2]

◆ Orient2DOrigin() [2/2]

◆ Orient2Origin()

◆ Orient3()

◆ Orient3D() [1/2]

◆ Orient3D() [2/2]

◆ Orient3DInexact() [1/2]

◆ Orient3DInexact() [2/2]