UE::Geometry::TTriangle2< RealType > Struct Template Reference

#include <TriangleTypes.h>

Public Member Functions
	TTriangle2 ()
	TTriangle2 (const TVector2< RealType > &V0, const TVector2< RealType > &V1, const TVector2< RealType > &V2)
	TTriangle2 (const TVector2< RealType > VIn[3])
TVector2< RealType >	BarycentricPoint (RealType Bary0, RealType Bary1, RealType Bary2) const
TVector2< RealType >	BarycentricPoint (const TVector< RealType > &BaryCoords) const
TVector< RealType >	GetBarycentricCoords (const TVector2< RealType > &Point) const
RealType	SignedArea () const
RealType	Area () const
bool	IsInside (const TVector2< RealType > &QueryPoint) const
bool	IsInsideOrOn (const TVector2< RealType > &QueryPoint, RealType Tolerance=0) const
int	IsInsideOrOn_Oriented (const TVector2< RealType > &QueryPoint, RealType Tolerance=(RealType) 0) const

Static Public Member Functions
static RealType	SignedArea (const TVector2< RealType > &A, const TVector2< RealType > &B, const TVector2< RealType > &C)
static bool	IsInside (const TVector2< RealType > &A, const TVector2< RealType > &B, const TVector2< RealType > &C, const TVector2< RealType > &QueryPoint)
static bool	IsInsideOrOn (const TVector2< RealType > &A, const TVector2< RealType > &B, const TVector2< RealType > &C, const TVector2< RealType > &QueryPoint, RealType Tolerance=(RealType) 0)
static int	IsInsideOrOn_Oriented (const TVector2< RealType > &A, const TVector2< RealType > &B, const TVector2< RealType > &C, const TVector2< RealType > &QueryPoint, RealType Tolerance=(RealType) 0)

Public Attributes
TVector2< RealType >	V [3]

Constructor & Destructor Documentation

TTriangle2() [1/3]

template<typename RealType >

UE::Geometry::TTriangle2< RealType >::TTriangle2 ( )

inline

TTriangle2() [2/3]

template<typename RealType >

UE::Geometry::TTriangle2< RealType >::TTriangle2 ( const TVector2< RealType > &  V0, const TVector2< RealType > &  V1, const TVector2< RealType > &  V2  )

inline

TTriangle2() [3/3]

template<typename RealType >

UE::Geometry::TTriangle2< RealType >::TTriangle2 ( const TVector2< RealType >  VIn[3] )

inline

Member Function Documentation

Area()

template<typename RealType >

RealType UE::Geometry::TTriangle2< RealType >::Area ( ) const

inline

Returns

unsigned area of the triangle

BarycentricPoint() [1/2]

template<typename RealType >

TVector2< RealType > UE::Geometry::TTriangle2< RealType >::BarycentricPoint ( const TVector< RealType > &  BaryCoords ) const

inline

BarycentricPoint() [2/2]

template<typename RealType >

TVector2< RealType > UE::Geometry::TTriangle2< RealType >::BarycentricPoint ( RealType  Bary0, RealType  Bary1, RealType  Bary2  ) const

inline

GetBarycentricCoords()

template<typename RealType >

TVector< RealType > UE::Geometry::TTriangle2< RealType >::GetBarycentricCoords ( const TVector2< RealType > &  Point ) const

inline

IsInside() [1/2]

template<typename RealType >

static bool UE::Geometry::TTriangle2< RealType >::IsInside ( const TVector2< RealType > &  A, const TVector2< RealType > &  B, const TVector2< RealType > &  C, const TVector2< RealType > &  QueryPoint  )

inlinestatic

Parameters

A	first vertex of triangle
B	second vertex of triangle
C	third vertex of triangle
QueryPoint	test point

Returns

true if QueryPoint is inside triangle

IsInside() [2/2]

template<typename RealType >

bool UE::Geometry::TTriangle2< RealType >::IsInside ( const TVector2< RealType > &  QueryPoint ) const

inline

Returns

true if QueryPoint is inside triangle

IsInsideOrOn() [1/2]

template<typename RealType >

static bool UE::Geometry::TTriangle2< RealType >::IsInsideOrOn ( const TVector2< RealType > &  A, const TVector2< RealType > &  B, const TVector2< RealType > &  C, const TVector2< RealType > &  QueryPoint, RealType  Tolerance = (RealType)0  )

inlinestatic

Returns

true if QueryPoint is inside triangle or on edge. Note that this is slower than IsInside because of the need to handle degeneracy and tolerance.

IsInsideOrOn() [2/2]

template<typename RealType >

bool UE::Geometry::TTriangle2< RealType >::IsInsideOrOn ( const TVector2< RealType > &  QueryPoint, RealType  Tolerance = 0  ) const

inline

Returns

true if QueryPoint is inside triangle or on edge. Note that this is slower than IsInside because of the need to handle degeneracy and tolerance.

IsInsideOrOn_Oriented() [1/2]

template<typename RealType >

static int UE::Geometry::TTriangle2< RealType >::IsInsideOrOn_Oriented ( const TVector2< RealType > &  A, const TVector2< RealType > &  B, const TVector2< RealType > &  C, const TVector2< RealType > &  QueryPoint, RealType  Tolerance = (RealType)0  )

inlinestatic

More robust (because it doesn't multiply orientation test results) inside-triangle test for oriented triangles only (the code early-outs at the first 'outside' edge, which only works if the triangle is oriented as expected)

Returns

1 if outside, -1 if inside, 0 if on boundary

IsInsideOrOn_Oriented() [2/2]

template<typename RealType >

int UE::Geometry::TTriangle2< RealType >::IsInsideOrOn_Oriented ( const TVector2< RealType > &  QueryPoint, RealType  Tolerance = (RealType)0  ) const

inline

More robust (because it doesn't multiply orientation test results) inside-triangle test for oriented triangles only (the code early-outs at the first 'outside' edge, which only works if the triangle is oriented as expected)

Returns

1 if outside, -1 if inside, 0 if on boundary

SignedArea() [1/2]

template<typename RealType >

RealType UE::Geometry::TTriangle2< RealType >::SignedArea ( ) const

inline

Returns

signed area of triangle

SignedArea() [2/2]

template<typename RealType >

static RealType UE::Geometry::TTriangle2< RealType >::SignedArea ( const TVector2< RealType > &  A, const TVector2< RealType > &  B, const TVector2< RealType > &  C  )

inlinestatic

Parameters

A	first vertex of triangle
B	second vertex of triangle
C	third vertex of triangle

Returns

signed area of triangle

Member Data Documentation

V

template<typename RealType >

TVector2<RealType> UE::Geometry::TTriangle2< RealType >::V[3]

---

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

• Engine/Source/Runtime/GeometryCore/Public/TriangleTypes.h