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  3. FGeometrySet3

FGeometrySet3

[FGeometrySet3](API\Runtime\GeometryCore\Spatial\FGeometrySet3) stores a set of 3D Points and Polyline curves, and supports spatial queries against these sets.

API > API/Runtime > API/Runtime/GeometryCore > API/Runtime/GeometryCore/Spatial

References

   
Module GeometryCore
Header /Engine/Source/Runtime/GeometryCore/Public/Spatial/GeometrySet3.h
Include #include "Spatial/GeometrySet3.h"

Syntax

class FGeometrySet3

Remarks

FGeometrySet3 stores a set of 3D Points and Polyline curves, and supports spatial queries against these sets.

Since Points and Curves have no area to hit, hit-tests are done via nearest-point-on-ray.

Variables

  Type Name Description
Protected variable TMap< int, int > CurveIDToIndex  
Protected variable TArray< FCurve > Curves  
Protected variable TMap< int, int > PointIDToIndex  
Protected variable TArray< FPoint > Points  

Functions

  Type Name Description
Public function void

AddCurve ( int CurveID,
const FPolyline3d& Polyline
)

 Add a polycurve with given CurveID and the give Polyline
Public function void

AddPoint ( int PointID,
const FVector3d& Position
)

 Add a point with given PointID at the given Position
Public function Const bool

CollectCurvesNearRay ( const FRay3d& Ray,
TArray< FNearest >& ResultsOut,
TFunction< bool(const FVector3d&, const FVector3d&)> PointWithinToleranceTest
)

 Like FindNearestCurveToRay, but gives all elements within tolerance, rather than just the closest.
Public function Const bool

CollectPointsNearRay ( const FRay3d& Ray,
TArray< FNearest >& ResultsOut,
TFunction< bool(const FVector3d&, const FVector3d&)> PointWithinToleranceTest
)

 Like FindNearestPointToRay, but gives all elements within tolerance, rather than just the closest.
Public function Const bool

FindAllCurvesSatisfying ( PredicateType Predicate,
IntContainerType& CurveIDsOut
)

 Fills CurveIDsOut with IDs of curves that satisfy the given predicate.
Public function Const bool

FindAllPointsSatisfying ( PredicateType Predicate,
IntContainerType& PointIDsOut
)

 Fills PointIDsOut with point IDs of points that satisfy the given predicate.
Public function Const bool

FindNearestCurveToRay ( const FRay3d& Ray,
FNearest& ResultOut,
TFunction< bool(const FVector3d&, const FVector3d&)> PointWithinToleranceTest
)

 PointWithinToleranceTest is called in parallel and hence must be thread-safe/re-entrant!
Public function Const bool

FindNearestPointToRay ( const FRay3d& Ray,
FNearest& ResultOut,
TFunction< bool(const FVector3d&, const FVector3d&)> PointWithinToleranceTest
)

 PointWithinToleranceTest is called in parallel and hence must be thread-safe/re-entrant!
Public function Const bool

ParallelFindAllCurvesSatisfying ( PredicateType Predicate,
IntContainerType& CurveIDsOut
)

 Like FindAllCurvesSatisfying, but parallel, so predicate must be safe to call in parallel.
Public function Const bool

ParallelFindAllPointsSatisfying ( PredicateType Predicate,
IntContainerType& PointIDsOut
)

 Like FindAllPointsSatisfying, but parallel, so predicate must be safe to call in parallel.
Public function void

RemoveCurve ( int CurveID
)

 Remove a curve with given CurveID.
Public function void

RemovePoint ( int PointID
)

 Remove a point with given PointID.
Public function void

Reset ( bool bPoints,
bool bCurves
)

  
Public function void

UpdateCurve ( int CurveID,
const FPolyline3d& Polyline
)

 Update the Polyline of previously-added CurveID
Public function void

UpdatePoint ( int PointID,
const FVector3d& Position
)

 Update the Position of previously-added PointID

Classes

  Type Name Description
Protected struct FCurve    
Public struct FNearest FNearest is returned by nearest-point queries  
Protected struct FPoint    

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