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  3. TDynamicMeshTriangleAttribute

TDynamicMeshTriangleAttribute

[TDynamicMeshTriangleAttribute](API\Runtime\GeometryCore\TDynamicMeshTriangleAttribute) is an add-on to a [FDynamicMesh3](API\Runtime\GeometryCore\FDynamicMesh3) that allows for per-triangle storage of an attribute value.

API > API/Runtime > API/Runtime/GeometryCore

TDynamicMeshTriangleAttribute is an add-on to a FDynamicMesh3 that allows for per-triangle storage of an attribute value.

The FDynamicMesh3 mesh topology operations (eg split/flip/collapse edge, poke face, etc) can be mirrored to the overlay via OnSplitEdge(), etc.

   
Name TDynamicMeshTriangleAttribute
Type class
Header File /Engine/Source/Runtime/GeometryCore/Public/DynamicMesh/DynamicMeshTriangleAttribute.h
Include Path #include "DynamicMesh/DynamicMeshTriangleAttribute.h"

Syntax

template<typename AttribValueType, int AttribDimension>  
class TDynamicMeshTriangleAttribute : public UE::Geometry::TDynamicAttributeBase< FDynamicMesh3 >

Inheritance Hierarchy

Derived Classes

Constructors

Name Remarks Include Path Unreal Specifiers
Create an empty overlay DynamicMesh/DynamicMeshTriangleAttribute.h  

TDynamicMeshTriangleAttribute ( FDynamicMesh3* ParentMeshIn,
bool bAutoInit
)

 Create an overlay for the given parent mesh DynamicMesh/DynamicMeshTriangleAttribute.h  

Typedefs

Name Type Remarks Include Path
Super FDynamicMeshAttributeBase   DynamicMesh/DynamicMeshTriangleAttribute.h

Functions

Public

Name Remarks Include Path Unreal Specifiers

void CompactCopy ( const FCompactMaps& CompactMaps,
const TDynamicMeshTriangleAttribute< AttribValueType, AttribDimension >& ToCopy
)

   DynamicMesh/DynamicMeshTriangleAttribute.h  

void Copy ( const TDynamicMeshTriangleAttribute< AttribValueType, AttribDimension >& Copy
)

 Set this overlay to contain the same arrays as the copy overlay DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual bool CopyThroughMapping ( const TDynamicAttributeBase< FDynamicMesh3 >* Source,
const FMeshIndexMappings& Mapping
)

 Accessors/Queries DynamicMesh/DynamicMeshTriangleAttribute.h  

void CopyValue ( int FromTriangleID,
int ToTriangleID
)

 Copy the attribute value at FromTriangleID to ToTriangleID DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual AttribValueType GetDefaultAttributeValue()

   DynamicMesh/DynamicMeshTriangleAttribute.h  
  DynamicMesh/DynamicMeshTriangleAttribute.h  
  DynamicMesh/DynamicMeshTriangleAttribute.h  

void GetValue ( int TriangleID,
AsType& Data
) const

 Get the element at a given index DynamicMesh/DynamicMeshTriangleAttribute.h  

void GetValue ( int TriangleID,
AttribValueType* Data
) const

 Get the element at a given index DynamicMesh/DynamicMeshTriangleAttribute.h  

void Initialize ( AttribValueType InitialValue
)

 Initialize the attribute values with InitialValue, and resize to the parent mesh's max triangle ID DynamicMesh/DynamicMeshTriangleAttribute.h  

bool IsBorderEdge ( int EdgeID,
bool bMeshBoundaryIsBorder
) const

 Returns true if the parent-mesh edge is a "Seam" in this overlay DynamicMesh/DynamicMeshTriangleAttribute.h  

bool IsSameAs ( const TDynamicMeshTriangleAttribute< AttribValueType, AttribDimension >& Other,
bool bIgnoreDataLayout
) const

 Returns true if this AttributeSet is the same as Other. DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual FDynamicMeshAttributeBase * MakeCompactCopy ( const FCompactMaps& CompactMaps,
FDynamicMesh3* ParentMeshIn
) const

   DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual FDynamicMeshAttributeBase * MakeCopy ( FDynamicMesh3* ParentMeshIn
) const

   DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual FDynamicMeshAttributeBase * MakeNew ( FDynamicMesh3* ParentMeshIn
) const

   DynamicMesh/DynamicMeshTriangleAttribute.h  

void ResizeAttribStoreIfNeeded ( int TriangleID
)

   DynamicMesh/DynamicMeshTriangleAttribute.h  

void Serialize ( FArchive& Ar,
const FCompactMaps* CompactMaps,
bool bUseCompression
)

 Serialize to and from an archive. DynamicMesh/DynamicMeshTriangleAttribute.h  

void SetNewValue ( int NewTriangleID,
const AttribValueType* Data
)

   DynamicMesh/DynamicMeshTriangleAttribute.h  

void SetScalarValue ( int TriangleID,
const AttribValueType& SingleValue
)

 Set the element at a given index with a scalar value (the same value for each dimension) DynamicMesh/DynamicMeshTriangleAttribute.h  

void SetValue ( int TriangleID,
const AttribValueType* Data
)

 Set the element at a given index DynamicMesh/DynamicMeshTriangleAttribute.h  

void SetValue ( int TriangleID,
const AsType& Data
)

 Set the element at a given index DynamicMesh/DynamicMeshTriangleAttribute.h  

Overridden from TDynamicAttributeBase

Name Remarks Include Path Unreal Specifiers

virtual bool Append ( const TDynamicAttributeBase& Source,
const UE::Geometry::FDynamicMesh3::FAppendInfo& AppendInfo
)

 Add elements from the Source attribute, using the AppendInfo to determine the range to copy. DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void AppendDefaulted ( const UE::Geometry::FDynamicMesh3::FAppendInfo& AppendInfo
)

 Add default-valued elements, using the AppendInfo to determine the range to add. DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void CompactInPlace ( const FCompactMaps& CompactMaps
)

 Compact the attribute in place DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual bool CopyIn ( int RawID,
void* Buffer,
int BufferSize
)

 Generic function to copy data in to an attribute; it's up to the derived class to map RawID to chunks of attribute data DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual bool CopyOut ( int RawID,
void* Buffer,
int BufferSize
) const

 Generic function to copy data out of an attribute; it's up to the derived class to map RawID to chunks of attribute data DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual SIZE_T GetByteCount()

   DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual TUniquePtr< FDynamicMeshAttributeChangeBase > NewBlankChange()

   DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void OnCollapseEdge ( const DynamicMeshInfo::FEdgeCollapseInfo& CollapseInfo
)

 Update the overlay to reflect an edge collapse in the parent mesh DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void OnFlipEdge ( const DynamicMeshInfo::FEdgeFlipInfo& FlipInfo
)

 Update the overlay to reflect an edge flip in the parent mesh DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void OnMergeEdges ( const DynamicMeshInfo::FMergeEdgesInfo& MergeInfo
)

 Update the overlay to reflect an edge merge in the parent mesh DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void OnMergeVertices ( const DynamicMeshInfo::FMergeVerticesInfo& MergeInfo
)

 Update to reflect a vertex merge that does not resolve as a collapse or edge merge (i.e. a vertex merge that resolves as bowtie creation). DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void OnNewTriangle ( int TriangleID,
bool bInserted
)

   DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void OnPokeTriangle ( const DynamicMeshInfo::FPokeTriangleInfo& PokeInfo
)

 Update the overlay to reflect a face poke in the parent mesh DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void OnSplitEdge ( const DynamicMeshInfo::FEdgeSplitInfo& SplitInfo
)

 Update the overlay to reflect an edge split in the parent mesh DynamicMesh/DynamicMeshTriangleAttribute.h  

virtual void OnSplitVertex ( const DynamicMeshInfo::FVertexSplitInfo& SplitInfo,
const TArrayView< const int >& TrianglesToUpdate
)

 Update the overlay to reflect a vertex split in the parent DynamicMesh/DynamicMeshTriangleAttribute.h  

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