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  3. TMeshAttributeArrayBase

TMeshAttributeArrayBase

This defines the container used to hold mesh element attributes of a particular name and index.

API > API/Runtime > API/Runtime/MeshDescription

This defines the container used to hold mesh element attributes of a particular name and index. It is a simple TArray, so that all attributes are packed contiguously for each element ID.

Note that the container may grow arbitrarily as new elements are inserted, but it will never be shrunk as elements are removed. The only operations that will shrink the container are Initialize() and Remap().

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

Syntax

template<typename AttributeType>  
class TMeshAttributeArrayBase

Constructors

Name Remarks Include Path Unreal Specifiers

TMeshAttributeArrayBase ( uint32 InExtent
)

   MeshAttributeArray.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

const AttributeType * GetData()

 Return base of data MeshAttributeArray.h  

const AttributeType * GetElementBase ( const int32 Index
) const

   MeshAttributeArray.h  

AttributeType * GetElementBase ( const int32 Index
)

   MeshAttributeArray.h  

uint32 GetExtent()

   MeshAttributeArray.h  

uint32 GetHash ( uint32 Crc
) const

   MeshAttributeArray.h  

uint32 GetHash ( uint32 Crc
) const

 We have to manually implement this or else the default behavior will just hash FName ComparisonIndex and Number, which aren't deterministic MeshAttributeArray.h  

void Initialize ( const int32 ElementCount,
const AttributeType& Default
)

 Initializes the array to the given size with the default value MeshAttributeArray.h  

void Insert ( const int32 Index,
const AttributeType& Default
)

 Expands the array if necessary so that the passed element index is valid. MeshAttributeArray.h  

int32 Num()

 Return size of container MeshAttributeArray.h  

void Remap ( const TSparseArray< int32 >& IndexRemap,
const AttributeType& Default
)

 Remaps elements according to the passed remapping table MeshAttributeArray.h  

void SetNum ( const int32 ElementCount,
const AttributeType& Default
)

   MeshAttributeArray.h  

void SetToDefault ( const int32 Index,
const AttributeType& Default
)

 Fills the index with the default value MeshAttributeArray.h  

Operators

Name Remarks Include Path Unreal Specifiers

const AttributeType & operator[] ( const int32 Index
) const

 Element accessors MeshAttributeArray.h  

AttributeType & operator[] ( const int32 Index
)

   MeshAttributeArray.h  

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