UE::Geometry::FCompactMaps Class Reference

#include <CompactMaps.h>

Public Member Functions
void	SetIdentity (int32 NumVertMappings, int32 NumTriMappings)
void	SetIdentityVertexMap (int32 NumVertMappings)
void	SetIdentityTriangleMap (int32 NumTriMappings)
void	Reset (int32 NumVertMappings, int32 NumTriMappings, bool bInitializeWithInvalidID)
void	ResetVertexMap (int32 NumVertMappings, bool bInitializeWithInvalidID)
void	ResetTriangleMap (int32 NumTriMappings, bool bInitializeWithInvalidID)
void	Reset ()
bool	VertexMapIsSet () const
bool	TriangleMapIsSet () const
int32	NumVertexMappings () const
int32	NumTriangleMappings () const
void	SetVertexMapping (int32 FromID, int32 ToID)
void	SetTriangleMapping (int32 FromID, int32 ToID)
int32	GetVertexMapping (int32 FromID) const
FIndex3i	GetVertexMapping (FIndex3i FromIDs) const
int32	GetTriangleMapping (int32 FromID) const
bool	Validate () const

Static Public Attributes
static constexpr int32	InvalidID = IndexConstants::InvalidID

Detailed Description

Stores index remapping for vertices and triangles. Should only be used for compacting, and should maintain invariant that *Map[Idx] <= Idx for all maps

Member Function Documentation

GetTriangleMapping()

int32 UE::Geometry::FCompactMaps::GetTriangleMapping ( int32  FromID ) const

inline

Get mapping for a triangle

GetVertexMapping() [1/2]

FIndex3i UE::Geometry::FCompactMaps::GetVertexMapping ( FIndex3i  FromIDs ) const

inline

Get mapping for three vertices, e.g. a triangle

GetVertexMapping() [2/2]

int32 UE::Geometry::FCompactMaps::GetVertexMapping ( int32  FromID ) const

inline

Get mapping for a vertex

NumTriangleMappings()

int32 UE::Geometry::FCompactMaps::NumTriangleMappings ( ) const

inline

Get number of triangle mappings

NumVertexMappings()

int32 UE::Geometry::FCompactMaps::NumVertexMappings ( ) const

inline

Get number of vertex mappings

Reset() [1/2]

void UE::Geometry::FCompactMaps::Reset ( )

inline

Reset all maps, leaving them empty

Reset() [2/2]

void UE::Geometry::FCompactMaps::Reset ( int32  NumVertMappings, int32  NumTriMappings, bool  bInitializeWithInvalidID  )

inline

Resize vertex and triangle maps, and initialize with InvalidID.

Parameters

NumVertMappings	Size of post-reset vertex map
NumTriMappings	Size of post-reset triangle map
bInitializeWithInvalidID	If true, initializes maps with InvalidID

ResetTriangleMap()

void UE::Geometry::FCompactMaps::ResetTriangleMap ( int32  NumTriMappings, bool  bInitializeWithInvalidID  )

inline

Resize triangle map, and optionally initialize with InvalidID.

Parameters

NumTriMappings	Size of post-reset triangle map
bInitializeWithInvalidID	If true, initializes map with InvalidID

ResetVertexMap()

void UE::Geometry::FCompactMaps::ResetVertexMap ( int32  NumVertMappings, bool  bInitializeWithInvalidID  )

inline

Resize vertex map, and optionally initialize with InvalidID.

Parameters

NumVertMappings	Size of post-reset vertex map
bInitializeWithInvalidID	If true, initializes map with InvalidID

SetIdentity()

void UE::Geometry::FCompactMaps::SetIdentity ( int32  NumVertMappings, int32  NumTriMappings  )

inline

Set up maps as identity maps.

Parameters

NumVertMappings	Vertex map will be created from 0 to NumVertMappings - 1
NumTriMappings	Triangle map will be created from 0 to NumTriMappings - 1

SetIdentityTriangleMap()

void UE::Geometry::FCompactMaps::SetIdentityTriangleMap ( int32  NumTriMappings )

inline

Set up triangle map as identity map.

Parameters

NumTriMappings

Vertex map will be created from 0 to NumTriMappings - 1

SetIdentityVertexMap()

void UE::Geometry::FCompactMaps::SetIdentityVertexMap ( int32  NumVertMappings )

inline

Set up vertex map as identity map.

Parameters

NumVertMappings

Vertex map will be created from 0 to NumVertMappings - 1

SetTriangleMapping()

void UE::Geometry::FCompactMaps::SetTriangleMapping ( int32  FromID, int32  ToID  )

inline

Set mapping for a triangle

SetVertexMapping()

void UE::Geometry::FCompactMaps::SetVertexMapping ( int32  FromID, int32  ToID  )

inline

Set mapping for a vertex

TriangleMapIsSet()

bool UE::Geometry::FCompactMaps::TriangleMapIsSet ( ) const

inline

Returns true if there are triangle mappings.

Validate()

bool UE::Geometry::FCompactMaps::Validate ( ) const

inline

Check data for validity; for testing

VertexMapIsSet()

bool UE::Geometry::FCompactMaps::VertexMapIsSet ( ) const

inline

Returns true if there are vertex mappings.

Member Data Documentation

InvalidID

constexpr int32 UE::Geometry::FCompactMaps::InvalidID = IndexConstants::InvalidID

staticconstexpr

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

• Engine/Source/Runtime/GeometryCore/Public/Util/CompactMaps.h