TIntrTriangle3Triangle3 | Unreal Engine 5.5 Documentation

API > API/Runtime > API/Runtime/GeometryCore > API/Runtime/GeometryCore/Intersection

References


Module	GeometryCore
Header	/Engine/Source/Runtime/GeometryCore/Public/Intersection/IntrTriangle3Triangle3.h
Include	#include "Intersection/IntrTriangle3Triangle3.h"

Syntax

template<typename Real>  
class TIntrTriangle3Triangle3

Remarks

Compute intersection between 3D triangles use Test() for fast boolean query, does not compute intersection info use Find() to compute full information By default fully-contained co-planar triangles are not reported as intersecting. Call SetReportCoplanarIntersection(true) to handle this case (more expensive)

Variables

Type	Name	Description
bool	bReportCoplanarIntersection	If true, will return intersection polygons for co-planar triangles.
TVector< Real >[6]	Points
int	Quantity	Intersection points (for point, line, polygon) only first Quantity elements are relevant
EIntersectionResult	Result	Result flags
Real	Tolerance
TTriangle3< Real >	Triangle0	Input.
TTriangle3< Real >	Triangle1
EIntersectionType	Type

Constructors

	Type	Name	Description
		TIntrTriangle3Triangle3 ()
		TIntrTriangle3Triangle3 ( const TTriangle3< Real >& T0, const TTriangle3< Real >& T1 )

Functions

Type	Name	Description
TIntrTriangle3Triangle3 *	Compute ()
bool	ContainsPoint ( const TTriangle3< Real >& triangle, const TPlane3< Real >& plane, const TVector< Real >& point )
bool	Find ()
bool	GetCoplanarIntersection ( const TPlane3< Real >& plane, const TTriangle3< Real >& tri0, const TTriangle3< Real >& tri1 )
bool	GetReportCoplanarIntersection ()
Real	GetTolerance ()
TTriangle3< Real >	GetTriangle0 ()
TTriangle3< Real >	GetTriangle1 ()
bool	Intersects ( const TTriangle3< Real >& Triangle0, const TTriangle3< Real >& Triangle1, Real Tolerance )
bool	IntersectsSegment ( const TPlane3< Real >& plane, const TTriangle3< Real >& triangle, const TVector< Real >& end0, const TVector< Real >& end1 )
int	IntersectTriangleWithCoplanarSegment ( const TPlane3< Real >& plane, const TTriangle3< Real >& triangle, const TVector< Real >& end0, const TVector< Real >& end1, TVector< Real >& OutA, TVector< Real >& OutB, Real Tolerance )	Solve a common sub-problem for triangle-triangle intersection find the sub-segment (or point) where a triangle intersects a coplanar segment
void	ProjectOntoAxis ( const TTriangle3< Real >& triangle, const TVector< Real >& axis, Real& fmin, Real& fmax )
void	SetReportCoplanarIntersection ( bool bReportCoplanarIntersectionIn )
void	SetResult ( bool IsIntersecting )	Store an externally-computed binary yes/no result
void	SetResult ( const TVector< Real >& A, const TVector< Real >& B )	Store an externally-computed segment intersection result
void	SetResultNone ()	Store an externally-computed no-intersection result
void	SetTolerance ( Real ToleranceIn )
void	SetTriangle0 ( const TTriangle3< Real >& Triangle0In )
void	SetTriangle1 ( const TTriangle3< Real >& Triangle1In )
bool	Test ()
void	TrianglePlaneRelations ( const TTriangle3< Real >& triangle, const TPlane3< Real >& plane, TVector< Real >& distance, FIndex3i& sign, int& positive, int& negative, int& zero, Real Tolerance )