#include <MeshFaceSelection.h>

Public Member Functions
	FMeshFaceSelection (const FDynamicMesh3 *mesh)

GEOMETRYCORE_API	FMeshFaceSelection (const FDynamicMesh3 *mesh, const FMeshVertexSelection &convertV, int minCount=3)

	FMeshFaceSelection (const FDynamicMesh3 *mesh, int group_id)

TSet< int >::TRangedForIterator	begin ()

TSet< int >::TRangedForConstIterator	begin () const

TSet< int >::TRangedForIterator	end ()

TSet< int >::TRangedForConstIterator	end () const

int	Num () const

bool	IsSelected (int tid) const

bool	Contains (int tid) const

void	Select (int tid)

template<typename EnumerableType , typename E = decltype(DeclVal<EnumerableType>().begin())>
void	Select (const EnumerableType &Enumerable)

void	Select (TFunctionRef< bool(int)> SelectF)

void	SelectVertexOneRing (int vid)

void	SelectVertexOneRings (TArrayView< const int > Vertices)

void	SelectEdgeTris (int eid)

void	Deselect (int tid)

void	Deselect (TArrayView< const int > Triangles)

template<typename EnumerableType >
void	Deselect (const EnumerableType &Enumerable)

void	DeselectAll ()

void	SelectGroup (int gid)

void	SelectGroupInverse (int gid)

void	DeselectGroup (int gid)

template<typename EnumerableType , typename StorageType >
void	SetDifference (const EnumerableType &SubtractSet, StorageType &DifferenceStorage) const

template<typename EnumerableType , typename StorageType >
void	SetIntersection (const EnumerableType &IntersectSet, StorageType &IntersectionStorage) const

const TSet< int > &	AsSet () const

TArray< int >	AsArray () const

TBitArray< FDefaultBitArrayAllocator >	AsBitArray () const

TPair< bool, bool >	IsSelectionBoundaryEdge (int32 eid) const

TArray< int >	FindNeighbourTris () const

TArray< int >	FindBorderTris () const

void	ExpandToFaceNeighbours (const TUniqueFunction< bool(int)> &FilterF=nullptr)

void	ExpandToFaceNeighbours (int rounds, const TUniqueFunction< bool(int)> &FilterF=nullptr)

GEOMETRYCORE_API void	ExpandToOneRingNeighbours (const TUniqueFunction< bool(int)> &FilterF=nullptr)

GEOMETRYCORE_API void	ExpandToOneRingNeighbours (int nRings, const TUniqueFunction< bool(int)> &FilterF=nullptr)

GEOMETRYCORE_API void	ContractBorderByOneRingNeighbours (int NumRings=1, bool bContractFromMeshBoundary=false, const TUniqueFunction< bool(int)> &FilterF=nullptr)

void	FloodFill (int tSeed, const TUniqueFunction< bool(int)> &TriFilterF=nullptr, const TUniqueFunction< bool(int)> &EdgeFilterF=nullptr)

void	FloodFill (const TArray< int > &Seeds, const TUniqueFunction< bool(int)> &TriFilterF=nullptr, const TUniqueFunction< bool(int)> &EdgeFilterF=nullptr)

bool	ClipFins (bool bClipLoners)

bool	FillEars (bool bFillTinyHoles)

bool	LocalOptimize (bool bClipFins, bool bFillEars, bool bFillTinyHoles=true, bool bClipLoners=true, bool bRemoveBowties=false)

bool	LocalOptimize (bool bRemoveBowties=true)

bool	RemoveBowties ()

bool	remove_bowties ()

Constructor & Destructor Documentation

◆ FMeshFaceSelection() [1/3]

UE::Geometry::FMeshFaceSelection::FMeshFaceSelection ( const FDynamicMesh3 * mesh )

inline

◆ FMeshFaceSelection() [2/3]

FMeshFaceSelection::FMeshFaceSelection	(	const FDynamicMesh3 *	mesh,
		const FMeshVertexSelection &	convertV,
		int	minCount = `3`
	)

◆ FMeshFaceSelection() [3/3]

UE::Geometry::FMeshFaceSelection::FMeshFaceSelection	(	const FDynamicMesh3 *	mesh,
		int	group_id
	)

inline

Member Function Documentation

◆ AsArray()

TArray< int > UE::Geometry::FMeshFaceSelection::AsArray ( ) const

inline

◆ AsBitArray()

TBitArray< FDefaultBitArrayAllocator > UE::Geometry::FMeshFaceSelection::AsBitArray ( ) const

inline

◆ AsSet()

const TSet< int > & UE::Geometry::FMeshFaceSelection::AsSet ( ) const

inline

◆ begin() [1/2]

TSet< int >::TRangedForIterator UE::Geometry::FMeshFaceSelection::begin ( )

inline

DO NOT USE DIRECTLY STL-like iterators to enable range-based for loop support.

◆ begin() [2/2]

TSet< int >::TRangedForConstIterator UE::Geometry::FMeshFaceSelection::begin ( ) const

inline

◆ ClipFins()

bool UE::Geometry::FMeshFaceSelection::ClipFins ( bool bClipLoners )

inline

◆ Contains()

bool UE::Geometry::FMeshFaceSelection::Contains ( int tid ) const

inline

◆ ContractBorderByOneRingNeighbours()

void FMeshFaceSelection::ContractBorderByOneRingNeighbours	(	int	NumRings = `1`,
		bool	bContractFromMeshBoundary = `false`,
		const TUniqueFunction< bool(int)> &	FilterF = `nullptr`
	)

remove all triangles in vertex one-rings of current selection to set. On a large selection this is quite expensive as we don't know the boundary, so we have to iterate over all selected triangles.

Return false from FilterF to prevent triangles from being deselected.

◆ Deselect() [1/3]

template<typename EnumerableType >

void UE::Geometry::FMeshFaceSelection::Deselect ( const EnumerableType & Enumerable )

inline

◆ Deselect() [2/3]

void UE::Geometry::FMeshFaceSelection::Deselect ( int tid )

inline

◆ Deselect() [3/3]

void UE::Geometry::FMeshFaceSelection::Deselect ( TArrayView< const int > Triangles )

inline

◆ DeselectAll()

void UE::Geometry::FMeshFaceSelection::DeselectAll ( )

inline

◆ DeselectGroup()

void UE::Geometry::FMeshFaceSelection::DeselectGroup ( int gid )

inline

◆ end() [1/2]

TSet< int >::TRangedForIterator UE::Geometry::FMeshFaceSelection::end ( )

inline

◆ end() [2/2]

TSet< int >::TRangedForConstIterator UE::Geometry::FMeshFaceSelection::end ( ) const

inline

◆ ExpandToFaceNeighbours() [1/2]

void UE::Geometry::FMeshFaceSelection::ExpandToFaceNeighbours ( const TUniqueFunction< bool(int)> & FilterF = nullptr )

inline

◆ ExpandToFaceNeighbours() [2/2]

void UE::Geometry::FMeshFaceSelection::ExpandToFaceNeighbours	(	int	rounds,
		const TUniqueFunction< bool(int)> &	FilterF = `nullptr`
	)

inline

◆ ExpandToOneRingNeighbours() [1/2]

void FMeshFaceSelection::ExpandToOneRingNeighbours ( const TUniqueFunction< bool(int)> & FilterF = nullptr )

Add all triangles in vertex one-rings of current selection to set. On a large selection this is quite expensive as we don't know the boundary, so we have to iterate over all selected triangles.

Return false from FilterF to prevent triangles from being included.

◆ ExpandToOneRingNeighbours() [2/2]

void FMeshFaceSelection::ExpandToOneRingNeighbours	(	int	nRings,
		const TUniqueFunction< bool(int)> &	FilterF = `nullptr`
	)

Expand selection by N vertex one-rings. This is significantly faster than calling ExpandToOnering() multiple times, because we can track the growing front and only check the new triangles.

Return false from FilterF to prevent triangles from being included.

◆ FillEars()

bool UE::Geometry::FMeshFaceSelection::FillEars ( bool bFillTinyHoles )

inline

◆ FindBorderTris()

TArray< int > UE::Geometry::FMeshFaceSelection::FindBorderTris ( ) const

inline

find set of tris just inside border of selection

◆ FindNeighbourTris()

TArray< int > UE::Geometry::FMeshFaceSelection::FindNeighbourTris ( ) const

inline

find set of tris just outside border of selection

◆ FloodFill() [1/2]

void UE::Geometry::FMeshFaceSelection::FloodFill	(	const TArray< int > &	Seeds,
		const TUniqueFunction< bool(int)> &	TriFilterF = `nullptr`,
		const TUniqueFunction< bool(int)> &	EdgeFilterF = `nullptr`
	)

inline

Grow selection outwards from seed triangles, until it hits boundaries defined by triangle and edge filters. Edge filter is not effective unless it (possibly combined w/ triangle filter) defines closed loops.

◆ FloodFill() [2/2]

void UE::Geometry::FMeshFaceSelection::FloodFill	(	int	tSeed,
		const TUniqueFunction< bool(int)> &	TriFilterF = `nullptr`,
		const TUniqueFunction< bool(int)> &	EdgeFilterF = `nullptr`
	)

inline

Grow selection outwards from seed triangle, until it hits boundaries defined by triangle and edge filters. Edge filter is not effective unless it (possibly combined w/ triangle filter) defines closed loops.

◆ IsSelected()

bool UE::Geometry::FMeshFaceSelection::IsSelected ( int tid ) const

inline

◆ IsSelectionBoundaryEdge()

TPair< bool, bool > UE::Geometry::FMeshFaceSelection::IsSelectionBoundaryEdge ( int32 eid ) const

inline

Returns: pair (bIsSelectionBoundaryEdge, bIsMeshBoundaryEdge) for a given edge

◆ LocalOptimize() [1/2]

bool UE::Geometry::FMeshFaceSelection::LocalOptimize	(	bool	bClipFins,
		bool	bFillEars,
		bool	bFillTinyHoles = `true`,
		bool	bClipLoners = `true`,
		bool	bRemoveBowties = `false`
	)

inline

◆ LocalOptimize() [2/2]

bool UE::Geometry::FMeshFaceSelection::LocalOptimize ( bool bRemoveBowties = true )

inline

◆ Num()

int UE::Geometry::FMeshFaceSelection::Num ( ) const

inline

◆ remove_bowties()

bool UE::Geometry::FMeshFaceSelection::remove_bowties ( )

inline

◆ RemoveBowties()

bool UE::Geometry::FMeshFaceSelection::RemoveBowties ( )

inline

Find any "bowtie" vertices - ie vertex v such taht there is multiple spans of triangles selected in v's triangle one-ring - and deselect those one-rings. Returns true if selection was modified.

◆ Select() [1/3]

template<typename EnumerableType , typename E = decltype(DeclVal<EnumerableType>().begin())>

void UE::Geometry::FMeshFaceSelection::Select ( const EnumerableType & Enumerable )

inline

◆ Select() [2/3]

void UE::Geometry::FMeshFaceSelection::Select ( int tid )

inline

◆ Select() [3/3]

void UE::Geometry::FMeshFaceSelection::Select ( TFunctionRef< bool(int)> SelectF )

inline

◆ SelectEdgeTris()

void UE::Geometry::FMeshFaceSelection::SelectEdgeTris ( int eid )

inline

◆ SelectGroup()

void UE::Geometry::FMeshFaceSelection::SelectGroup ( int gid )

inline

◆ SelectGroupInverse()

void UE::Geometry::FMeshFaceSelection::SelectGroupInverse ( int gid )

inline

◆ SelectVertexOneRing()

void UE::Geometry::FMeshFaceSelection::SelectVertexOneRing ( int vid )

inline

◆ SelectVertexOneRings()

void UE::Geometry::FMeshFaceSelection::SelectVertexOneRings ( TArrayView< const int > Vertices )

inline

◆ SetDifference()

template<typename EnumerableType , typename StorageType >

void UE::Geometry::FMeshFaceSelection::SetDifference	(	const EnumerableType &	SubtractSet,
		StorageType &	DifferenceStorage
	)		const

inline

Find the elements in current selection that are not in SubtractSet, and store in DifferenceStorage

◆ SetIntersection()

template<typename EnumerableType , typename StorageType >

void UE::Geometry::FMeshFaceSelection::SetIntersection	(	const EnumerableType &	IntersectSet,
		StorageType &	IntersectionStorage
	)		const

inline

Find the elements in current selection that are also in IntersectSet, and store in IntersectionStorage

The documentation for this class was generated from the following files:

Engine/Source/Runtime/GeometryCore/Public/Selections/MeshFaceSelection.h
Engine/Source/Runtime/GeometryCore/Private/Selections/MeshFaceSelection.cpp

Public Member Functions

Constructor & Destructor Documentation

◆ FMeshFaceSelection() [1/3]

◆ FMeshFaceSelection() [2/3]

◆ FMeshFaceSelection() [3/3]

Member Function Documentation

◆ AsArray()

◆ AsBitArray()

◆ AsSet()

◆ begin() [1/2]

◆ begin() [2/2]

◆ ClipFins()

◆ Contains()

◆ ContractBorderByOneRingNeighbours()

◆ Deselect() [1/3]

◆ Deselect() [2/3]

◆ Deselect() [3/3]

◆ DeselectAll()

◆ DeselectGroup()

◆ end() [1/2]

◆ end() [2/2]

◆ ExpandToFaceNeighbours() [1/2]

◆ ExpandToFaceNeighbours() [2/2]

◆ ExpandToOneRingNeighbours() [1/2]

◆ ExpandToOneRingNeighbours() [2/2]

◆ FillEars()

◆ FindBorderTris()

◆ FindNeighbourTris()

◆ FloodFill() [1/2]

◆ FloodFill() [2/2]

◆ IsSelected()

◆ IsSelectionBoundaryEdge()

◆ LocalOptimize() [1/2]

◆ LocalOptimize() [2/2]

◆ Num()

◆ remove_bowties()

◆ RemoveBowties()

◆ Select() [1/3]

◆ Select() [2/3]

◆ Select() [3/3]

◆ SelectEdgeTris()

◆ SelectGroup()

◆ SelectGroupInverse()

◆ SelectVertexOneRing()

◆ SelectVertexOneRings()

◆ SetDifference()

◆ SetIntersection()