FMeshElementContainer | Unreal Engine 5.7 Documentation

API > API/Runtime > API/Runtime/MeshDescription

Class representing a collection of mesh elements, such as vertices or triangles. It has two purposes: 1) To generate new element IDs on demand, and recycle those which have been discarded. 2) To hold a map of attributes for a given element type and their values.


Name	FMeshElementContainer
Type	class
Header File	/Engine/Source/Runtime/MeshDescription/Public/MeshElementContainer.h
Include Path	#include "MeshElementContainer.h"

Syntax

class FMeshElementContainer

Derived Classes

TMeshElementContainer

Constructors

Name	Remarks	Include Path
FMeshElementContainer ( FMeshElementContainer&& Other )	Move constructor which ensures that NumHoles is set correctly in the moved object	MeshElementContainer.h
FMeshElementContainer ( const FMeshElementContainer& )		MeshElementContainer.h
FMeshElementContainer ()		MeshElementContainer.h

Classes

Name	Remarks
FElementIDs	This is a special type of iterator which returns successive IDs of valid elements, rather than the elements themselves.

Functions

Public

Name	Remarks	Include Path
int32 Add()	Add a new element at the next available index, and return the new ID	MeshElementContainer.h
void Compact ( TSparseArray< int32 >& OutIndexRemap )	Compacts elements and returns a remapping table	MeshElementContainer.h
int32 GetArraySize()	Returns the index after the last valid element	MeshElementContainer.h
const FAttributesSetBase & GetAttributes ()		MeshElementContainer.h
FAttributesSetBase & GetAttributes ()	Accessor for attributes	MeshElementContainer.h
FElementIDs GetElementIDs()	Return iterable proxy object from container	MeshElementContainer.h
int32 GetFirstValidID()	Returns the first valid ID	MeshElementContainer.h
void Insert ( const int32 Index )	Inserts a new element with the given index	MeshElementContainer.h
bool IsValid ( const int32 Index ) const	Returns whether the given ID is valid or not	MeshElementContainer.h
int32 Num()	Returns the number of elements in the container	MeshElementContainer.h
void Remap ( const TSparseArray< int32 >& IndexRemap )	Remaps elements according to the passed remapping table	MeshElementContainer.h
void Remove ( const int32 Index )	Removes the element with the given ID	MeshElementContainer.h
void Reserve ( const int32 Elements )	Reserves space for the specified total number of elements	MeshElementContainer.h
void Reset ( const int32 Elements )	Resets the container, optionally reserving space for elements to be added	MeshElementContainer.h

Operators

Name	Remarks	Include Path	Unreal Specifiers
FMeshElementContainer & operator= ( FMeshElementContainer&& Other )	Move assignment operator which ensures that NumHoles is set correctly in the moved object	MeshElementContainer.h
FMeshElementContainer & operator= ( const FMeshElementContainer& )		MeshElementContainer.h

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