vcg::tri::UpdateFlags< UpdateMeshType > Class Template Reference

Management, updating and computation of per-vertex and per-face flags (like border flags). More...

#include <vcg/complex/algorithms/update/flag.h>

Classes
class	EdgeSorter

Public Types
typedef UpdateMeshType	MeshType
typedef MeshType::ScalarType	ScalarType
typedef MeshType::VertexType	VertexType
typedef MeshType::VertexPointer	VertexPointer
typedef MeshType::VertexIterator	VertexIterator
typedef MeshType::EdgeType	EdgeType
typedef MeshType::EdgePointer	EdgePointer
typedef MeshType::EdgeIterator	EdgeIterator
typedef MeshType::FaceType	FaceType
typedef MeshType::FacePointer	FacePointer
typedef MeshType::FaceIterator	FaceIterator
typedef MeshType::TetraType	TetraType
typedef MeshType::TetraPointer	TetraPointer
typedef MeshType::TetraIterator	TetraIterator

Static Public Member Functions
static void	Clear (MeshType &m)
	Reset all the mesh flags (vertexes edge faces) setting everithing to zero (the default value for flags)
static void	VertexClear (MeshType &m, unsigned int FlagMask=0xffffffff)
static void	EdgeClear (MeshType &m, unsigned int FlagMask=0xffffffff)
static void	FaceClear (MeshType &m, unsigned int FlagMask=0xffffffff)
static void	TetraClear (MeshType &m, unsigned int FlagMask=0xffffffff)
static void	VertexSet (MeshType &m, unsigned int FlagMask)
static void	EdgeSet (MeshType &m, unsigned int FlagMask)
static void	FaceSet (MeshType &m, unsigned int FlagMask)
static void	TetraSet (MeshType &m, unsigned int FlagMask)
static void	VertexClearV (MeshType &m)
static void	VertexClearS (MeshType &m)
static void	VertexClearB (MeshType &m)
static void	EdgeClearV (MeshType &m)
static void	FaceClearV (MeshType &m)
static void	FaceClearB (MeshType &m)
static void	FaceClearS (MeshType &m)
static void	FaceClearF (MeshType &m)
static void	FaceClearFaceEdgeS (MeshType &m)
static void	EdgeSetV (MeshType &m)
static void	VertexSetV (MeshType &m)
static void	VertexSetS (MeshType &m)
static void	VertexSetB (MeshType &m)
static void	FaceSetV (MeshType &m)
static void	FaceSetB (MeshType &m)
static void	FaceSetF (MeshType &m)
static void	TetraClearV (MeshType &m)
static void	TetraClearS (MeshType &m)
static void	TetraClearB (MeshType &m)
static void	TetraSetV (MeshType &m)
static void	TetraSetS (MeshType &m)
static void	TetraSetB (MeshType &m)
static void	FaceBorderFromFF (MeshType &m)
	Compute the border flags for the faces using the Face-Face Topology. More...
static void	TetraBorderFromTT (MeshType &m)
	Compute the border flags for the tetras using the Tetra-Tetra Topology. More...
static void	VertexBorderFromTT (MeshType &m)
static void	FaceBorderFromVF (MeshType &m)
static void	VertexBorderFromNone (MeshType &m)
static void	FaceBorderFromNone (MeshType &m)
static void	VertexBorderFromFaceAdj (MeshType &m)
	Compute the PerVertex Border flag deriving it from the face-face adjacency.
static void	VertexBorderFromFaceBorder (MeshType &m)
	Compute the PerVertex Border flag deriving it from the border flag of faces.
static void	VertexBorderFromEdgeAdj (MeshType &m)
	Compute the PerVertex Border flag deriving it from the Edge-Edge adjacency (made for edgemeshes)
static void	FaceEdgeSelSignedCrease (MeshType &m, float AngleRadNeg, float AngleRadPos, bool MarkBorderFlag=false)
	Marks feature edges according to two signed dihedral angles. Actually it uses the face_edge selection bit on faces, we select the edges where the signed dihedral angle between the normal of two incident faces , is outside the two given thresholds. In this way all the edges that are almost planar are marked as non selected (e.g. edges to be ignored) Note that it uses the signed dihedral angle convention (negative for concave edges and positive for convex ones);. More...
static void	FaceEdgeSelBorder (MeshType &m)
	Selects feature edges according to Face adjacency.
static void	FaceEdgeSelCrease (MeshType &m, float AngleRad)
	Marks feature edges according to a given angle Actually it uses the face_edge selection bit on faces, we select the edges where the dihedral angle between the normal of two incident faces is larger than , the given thresholds. In this way all the near planar edges are marked remains not selected (e.g. edges to be ignored)

Detailed Description

template<class UpdateMeshType>
class vcg::tri::UpdateFlags< UpdateMeshType >

Management, updating and computation of per-vertex and per-face flags (like border flags).

This class is used to compute or update some of the flags that can be stored in the mesh components. For now just Border flags (e.g. the flag that tells if a given edge of a face belong to a border of the mesh or not).

Member Function Documentation

FaceBorderFromFF()

template<class UpdateMeshType >

static void vcg::tri::UpdateFlags< UpdateMeshType >::FaceBorderFromFF ( MeshType &  m )

inlinestatic

Compute the border flags for the faces using the Face-Face Topology.

Warning

Obviously it assumes that the topology has been correctly computed (see: UpdateTopology::FaceFace )

FaceBorderFromNone()

template<class UpdateMeshType >

static void vcg::tri::UpdateFlags< UpdateMeshType >::FaceBorderFromNone ( MeshType &  m )

inlinestatic

Computes per-face border flags without requiring any kind of topology It has a O(fn log fn) complexity.

FaceEdgeSelSignedCrease()

template<class UpdateMeshType >

static void vcg::tri::UpdateFlags< UpdateMeshType >::FaceEdgeSelSignedCrease ( MeshType &  m, float  AngleRadNeg, float  AngleRadPos, bool  MarkBorderFlag = false  )

inlinestatic

Marks feature edges according to two signed dihedral angles. Actually it uses the face_edge selection bit on faces, we select the edges where the signed dihedral angle between the normal of two incident faces , is outside the two given thresholds. In this way all the edges that are almost planar are marked as non selected (e.g. edges to be ignored) Note that it uses the signed dihedral angle convention (negative for concave edges and positive for convex ones);.

Optionally it can also mark as feature edges also the boundary edges.

TetraBorderFromTT()

template<class UpdateMeshType >

static void vcg::tri::UpdateFlags< UpdateMeshType >::TetraBorderFromTT ( MeshType &  m )

inlinestatic

Compute the border flags for the tetras using the Tetra-Tetra Topology.

Warning

Obviously it assumes that the topology has been correctly computed (see: UpdateTopology::FaceFace )

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

• /home/cignoni/devel/vcglib/vcg/complex/algorithms/update/flag.h