Information about a face, as stored in the Ptex file header. More...

#include <Ptexture.h>

Public Types
enum	{ flag_constant = 1, flag_hasedits = 2, flag_nbconstant = 4, flag_subface = 8 }
	Flag bit values (for internal use). More...

Public Member Functions
	FaceInfo ()
	Default constructor. More...

	FaceInfo (Res res_)
	Constructor. More...

	FaceInfo (Res res_, int adjfaces_[4], int adjedges_[4], bool isSubface_=false)
	Constructor. More...

EdgeId	adjedge (int eid) const
	Access an adjacent edge id. The eid value must be 0..3. More...

int	adjface (int eid) const
	Access an adjacent face id. The eid value must be 0..3. More...

bool	isConstant () const
	Determine if face is constant (by checking a flag). More...

bool	isNeighborhoodConstant () const
	Determine if neighborhood of face is constant (by checking a flag). More...

bool	hasEdits () const
	Determine if face has edits in the file (by checking a flag). More...

bool	isSubface () const
	Determine if face is a subface (by checking a flag). More...

void	setadjfaces (int f0, int f1, int f2, int f3)
	Set the adjfaces data. More...

void	setadjedges (int e0, int e1, int e2, int e3)
	Set the adjedges data. More...

Public Attributes
Res	res
	Resolution of face. More...

uint8_t	adjedges
	Adjacent edges, 2 bits per edge. More...

uint8_t	flags
	Flags. More...

int32_t	adjfaces [4]
	Adjacent faces (-1 == no adjacent face). More...

Detailed Description

Information about a face, as stored in the Ptex file header.

The FaceInfo data contains the face resolution and neighboring face adjacency information as well as a set of flags describing the face.

The adjfaces data member contains the face ids of the four neighboring faces. The neighbors are accessed in EdgeId order, CCW, starting with the bottom edge. The adjedges data member contains the corresponding edge id for each neighboring face.

If a face has no neighbor for a given edge, the adjface id should be -1, and the adjedge id doesn't matter (but is typically zero).

If an adjacent face is a pair of subfaces, the id of the first subface as encountered in a CCW traversal should be stored as the adjface id.

Definition at line 242 of file Ptexture.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Flag bit values (for internal use).

Enumerator
flag_constant
flag_hasedits
flag_nbconstant
flag_subface

Definition at line 295 of file Ptexture.h.

Constructor & Destructor Documentation

◆ FaceInfo() [1/3]

Ptex::FaceInfo::FaceInfo ( )

inline

Default constructor.

Definition at line 249 of file Ptexture.h.

References adjfaces.

◆ FaceInfo() [2/3]

Ptex::FaceInfo::FaceInfo ( Res res_ )

inline

Constructor.

Definition at line 255 of file Ptexture.h.

References adjfaces.

◆ FaceInfo() [3/3]

Ptex::FaceInfo::FaceInfo	(	Res	res_,
		int	adjfaces_[4],
		int	adjedges_[4],
		bool	isSubface_ = `false`
	)

inline

Constructor.

Definition at line 261 of file Ptexture.h.

References setadjedges(), and setadjfaces().

Member Function Documentation

◆ adjedge()

EdgeId Ptex::FaceInfo::adjedge ( int eid ) const

inline

Access an adjacent edge id. The eid value must be 0..3.

Definition at line 269 of file Ptexture.h.

References adjedges.

Referenced by PtexTriangleFilter::applyAcrossEdge(), and PtexSeparableFilter::applyAcrossEdge().

◆ adjface()

int Ptex::FaceInfo::adjface ( int eid ) const

inline

Access an adjacent face id. The eid value must be 0..3.

Definition at line 272 of file Ptexture.h.

References adjfaces.

Referenced by PtexTriangleFilter::applyAcrossEdge(), PtexSeparableFilter::applyAcrossEdge(), PtexTriangleFilter::splitAndApply(), and PtexSeparableFilter::splitAndApply().

◆ hasEdits()

bool Ptex::FaceInfo::hasEdits ( ) const

inline

Determine if face has edits in the file (by checking a flag).

Definition at line 281 of file Ptexture.h.

References flag_hasedits, and flags.

◆ isConstant()

bool Ptex::FaceInfo::isConstant ( ) const

inline

Determine if face is constant (by checking a flag).

Definition at line 275 of file Ptexture.h.

References flag_constant, and flags.

Referenced by PtexMainWriter::finish().

◆ isNeighborhoodConstant()

bool Ptex::FaceInfo::isNeighborhoodConstant ( ) const

inline

Determine if neighborhood of face is constant (by checking a flag).

Definition at line 278 of file Ptexture.h.

References flag_nbconstant, and flags.

◆ isSubface()

bool Ptex::FaceInfo::isSubface ( ) const

inline

Determine if face is a subface (by checking a flag).

Definition at line 284 of file Ptexture.h.

References flag_subface, and flags.

Referenced by PtexSeparableFilter::applyAcrossEdge(), PtexSeparableFilter::applyToCorner(), and PtexSeparableFilter::applyToCornerFace().

◆ setadjedges()

void Ptex::FaceInfo::setadjedges	(	int	e0,
		int	e1,
		int	e2,
		int	e3
	)

inline

Set the adjedges data.

Definition at line 291 of file Ptexture.h.

References adjedges.

Referenced by FaceInfo().

◆ setadjfaces()

void Ptex::FaceInfo::setadjfaces	(	int	f0,
		int	f1,
		int	f2,
		int	f3
	)

inline

Set the adjfaces data.

Definition at line 287 of file Ptexture.h.

References adjfaces.

Referenced by FaceInfo().

Member Data Documentation

◆ adjedges

uint8_t Ptex::FaceInfo::adjedges

Adjacent edges, 2 bits per edge.

Definition at line 244 of file Ptexture.h.

Referenced by adjedge(), and setadjedges().

◆ adjfaces

int32_t Ptex::FaceInfo::adjfaces[4]

Adjacent faces (-1 == no adjacent face).

Definition at line 246 of file Ptexture.h.

Referenced by adjface(), FaceInfo(), and setadjfaces().

◆ flags

uint8_t Ptex::FaceInfo::flags

Flags.

Definition at line 245 of file Ptexture.h.

Referenced by hasEdits(), isConstant(), isNeighborhoodConstant(), and isSubface().

◆ res

Res Ptex::FaceInfo::res

Resolution of face.

Definition at line 243 of file Ptexture.h.

Referenced by PtexTriangleFilter::apply(), PtexSeparableFilter::apply(), PtexPointFilter::eval(), PtexPointFilterTri::eval(), and PtexMainWriter::finish().

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

Ptexture.h

Public Types

Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ FaceInfo() [1/3]

◆ FaceInfo() [2/3]

◆ FaceInfo() [3/3]

Member Function Documentation

◆ adjedge()

◆ adjface()

◆ hasEdits()

◆ isConstant()

◆ isNeighborhoodConstant()

◆ isSubface()

◆ setadjedges()

◆ setadjfaces()

Member Data Documentation

◆ adjedges

◆ adjfaces

◆ flags

◆ res