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  3. TIntrSegment2Segment2

TIntrSegment2Segment2

Ported from WildMagic5

API > API/Runtime > API/Runtime/GeometryCore

Ported from WildMagic5

RealType IntervalThreshold The intersection testing uses the center-extent form for line segments. If you start with endpoints (Vector2) and create Segment2 objects, the conversion to center-extent form can contain small numerical round-off errors. Testing for the intersection of two segments that share an endpoint might lead to a failure due to the round-off errors. To allow for this, you may specify a small positive threshold that slightly enlarges the intervals for the segments. The default value is zero.

RealType DotThreshold The computation for determining whether the linear components are parallel might contain small floating-point round-off errors. The default threshold is TMathUtil::ZeroTolerance. If you set the value, pass in a nonnegative number.

The intersection set: Let q = Quantity. The cases are

q = 0: The segments do not intersect. Type is Empty

q = 1: The segments intersect in a single point. Type is Point Intersection point is Point0.

q = 2: The segments are collinear and intersect in a segment. Type is Segment. Points are Point0 and Point1 Calculate intersection between two 2D line segments

   
Name TIntrSegment2Segment2
Type class
Header File /Engine/Source/Runtime/GeometryCore/Public/Intersection/IntrSegment2Segment2.h
Include Path #include "Intersection/IntrSegment2Segment2.h"

Syntax

template<typename RealType>  
class TIntrSegment2Segment2

Constructors

Name Remarks Include Path Unreal Specifiers

TIntrSegment2Segment2 ( const TSegment2< RealType >& Segment1In,
const TSegment2< RealType >& Segment2In
)

   Intersection/IntrSegment2Segment2.h  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
Parameter0 RealType   Intersection/IntrSegment2Segment2.h  
Parameter1 RealType   Intersection/IntrSegment2Segment2.h  
Point0 TVector2< RealType > These values are all on segment 1, unlike many other tests!! Intersection/IntrSegment2Segment2.h  
Point1 TVector2< RealType >   Intersection/IntrSegment2Segment2.h  
Quantity int Outputs Intersection/IntrSegment2Segment2.h  
Result EIntersectionResult   Intersection/IntrSegment2Segment2.h  
Type EIntersectionType   Intersection/IntrSegment2Segment2.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

TIntrSegment2Segment2 & Compute()

   Intersection/IntrSegment2Segment2.h  

bool Find()

 Note: This implementation is identical to TSegment2::Intersects but also computes the intersection geometry. Intersection/IntrSegment2Segment2.h  

RealType GetDotThreshold()

   Intersection/IntrSegment2Segment2.h  

RealType GetIntervalThreshold()

   Intersection/IntrSegment2Segment2.h  

const TSegment2< RealType > & GetSegment1()

   Intersection/IntrSegment2Segment2.h  

const TSegment2< RealType > & GetSegment2()

   Intersection/IntrSegment2Segment2.h  

bool IsSimpleIntersection()

   Intersection/IntrSegment2Segment2.h  

void SetDotThreshold ( RealType Value
)

   Intersection/IntrSegment2Segment2.h  

void SetIntervalThreshold ( RealType Value
)

   Intersection/IntrSegment2Segment2.h  

void SetSegment1 ( const TSegment2< RealType >& Value
)

   Intersection/IntrSegment2Segment2.h  

void SetSegment2 ( const TSegment2< RealType >& Value
)

   Intersection/IntrSegment2Segment2.h  

Protected

Name Remarks Include Path Unreal Specifiers

void SanityCheck()

   Intersection/IntrSegment2Segment2.h  

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