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TGeneralPolygon2

[TGeneralPolygon2](API\Runtime\GeometryCore\CompGeom\TGeneralPolygon2) is a 2D polygon with holes

API > API/Runtime > API/Runtime/GeometryCore > API/Runtime/GeometryCore/CompGeom

References

   
Module GeometryCore
Header /Engine/Source/Runtime/GeometryCore/Public/CompGeom/Delaunay2.h
Include #include "CompGeom/Delaunay2.h"
Source /Engine/Source/Runtime/GeometryCore/Public/Curve/GeneralPolygon2.h

Syntax

template<typename T>  
class TGeneralPolygon2

Remarks

TGeneralPolygon2 is a 2D polygon with holes

Variables

  Type Name Description
Protected variable bool bOuterIsCW If true, Outer polygon winding is clockwise
Protected variable TArray< TPolygon2< T > > Holes The list of Holes in the polygon
Protected variable TPolygon2< T > Outer The Outer boundary of the polygon

Constructors

  Type Name Description
Public function    
Public function  

TGeneralPolygon2 ( const TPolygon2< T >& ToSetOuter
)

 Construct a general polygon with the given polygon as boundary

Functions

  Type Name Description
Public function bool

AddHole ( TPolygon2< T > Hole,
bool bCheckContainment,
bool bCheckOrientation
)

  
Public function Const TAxisAlignedBox2< T >

Bounds ()

  
Public function void  
Public function Const bool

Contains ( TPolygon2< T > Poly
)

  
Public function Const bool

Contains ( TVector2< T > vTest
)

  
Public function Const double

DistanceSquared ( TVector2< T > p,
int& iHoleIndex,
int& iNearSeg,
double& fNearSegT
)

 This should be more efficient when there are Holes...
Public function void

FilterHoles ( TFunctionRef< bool(const TPolygon2< T >&)> RemoveHolePredicateFunc
)

 Remove any Hole polygons for which RemoveHolePredicateFunc(Hole) returns true
Public function Const const TArray< TPolygon2< T > > &  
Public function Const TVector2< T >

GetNormal ( int iSegment,
double segT,
int iHoleIndex
)

  
Public function Const const TPolygon2< T > &  
Public function Const TVector2< T >

GetSegmentPoint ( int iSegment,
double fSegT,
int iHoleIndex
)

  
Public function Const bool  
Public function Const double  
Public function Const bool

Intersects ( TPolygon2< T > Poly
)

  
Public function Const bool  
Public function Const double  
Public function void

Reverse ()

  
Public function void

Scale ( TVector2< T > scale,
TVector2< T > origin
)

  
Public function Const TSegment2< T >

Segment ( int iSegment,
int iHoleIndex
)

  
Public function void

SetOuter ( const TPolygon2< T >& ToSetOuter
)

  
Public function void

SetOuterWithOrientation ( const TPolygon2< T >& ToSetOuter,
bool bToSetOuterIsCW
)

  
Public function Const double  
Public function void

Simplify ( double ClusterTol,
double LineDeviationTol
)

  
Public function void

Transform ( const TFunction< TVector2< T >(const TVector2< T >&)>& TransformFunc
)

  
Public function void

Translate ( TVector2< T > translate
)

  
Public function void

VtxNormalOffset ( T OffsetDistance,
bool bUseFaceAvg
)

 Offset each polygon by the given Distance along vertex "normal" direction (ie for positive offset, outer polygon grows and holes shrink)

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