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> Unreal Engine API Reference > Plugins > DynamicMesh > TDynamicPointSet3

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TDynamicPointSet3

[TDynamicPointSet3](API\Plugins\DynamicMesh\TDynamicPointSet3) implements a dynamic 3D point set, templated on real-value type (float or double).

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References

Module	DynamicMesh
Header	/Engine/Plugins/Experimental/GeometryProcessing/Source/DynamicMesh/Public/DynamicPointSet3.h
Include	#include "DynamicPointSet3.h"

Syntax

template<typename RealType>
class TDynamicPointSet3

Remarks

TDynamicPointSet3 implements a dynamic 3D point set, templated on real-value type (float or double). The points are indexed and the class allows for gaps in the index space.

The points are referred to as "Vertices" for consistency with higher-level Mesh and Graph classes. This class can be used interchangeably with the Vertices of those classes in some cases (for example in spatial data structures like TDynamicVerticesOctree3)

The point data is stored in via TDynamicVector<RealType>, which internally uses chunked storage and so is relatively efficient to grow/shrink/etc

Reference counts for the points are stored via a FRefCountVector instance

A per-point attribute set can optionally be attached. Currently the client is responsible for managing the memory for this attribute set. The attribute set will be automatically updated when points are added or removed.

Variables

	Name	Description
TDynamicAttribu...	BaseAttributeSet	Base attribute set
int	Timestamp	The timestamp is incremented any time a function that modifies the point set is called
FRefCountVector	VertexRefCounts	Reference counts of vertex indices. Iterate over this to find out which vertex indices are valid.
TDynamicVector<...	Vertices	List of vertex positions

Functions

	Name	Description
int	AppendVertex ( const FVector3< RealType >& Positi... )	Append vertex at position, returns vid
void	BeginUnsafeVerticesInsert()	Call this before a set of unsafe InsertVertex() calls
void	Clear()	ConstructionDiscard all data
RealType	CompactMetric()	Returns measure of compactness in range [0,1], where 1 is fully compacted
void	EndUnsafeVerticesInsert()	Call after a set of unsafe InsertVertex() calls to rebuild free list
TDynamicAttr...	GetBaseAttributeSet()
TAxisAligned...	GetBounds()	Geometric queriesReturns bounding box of all points
int	GetTimestamp()	Timestamp is incremented any time any change is made to the point set
FVector3< Re...	GetVertex ( int VertexID )	Get/set
const TDynam...	GetVerticesBuffer()	Direct buffer access (not a good idea to use)
const FRefCo...	GetVerticesRefCounts()
EMeshResult	InsertVertex ( int VertexID, const FVector3< RealType >& Positi..., bool bUnsafe )	Insert vertex at given index, assuming it is unused.
bool	IsCompact()
bool	IsVertex ( int VertexID )
int	MaxVertexID()
EMeshResult	RemoveVertex ( int VertexID )	Edit operationsRemove point
void	SetExternallyManagedAttributes ( TDynamicAttributeSetBase< TDynamicP... )	Attribute Set Support.
void	SetVertex ( int VertexID, const FVector3< RealType >& vNewPo... )	Set vertex position
void	UpdateTimeStamp()
int	VertexCount()	Indices
FRefCountVec...	VertexIndicesItr()	Iterators
FRefCountVec...	VerticesItr()	Enumerate positions of all points

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