A48::Hedge Class Reference

The Hedge class represents Half-edge topological entity of mesh 4-8. More...

#include <edge.h>

Collaboration diagram for A48::Hedge:

[legend]List of all members.

Public Member Functions
Face *	face ()
	Returns the half-egde's face.
Vertex *	org ()
	Returns the half-edge's origin vertex.
Vertex *	dst ()
	Returns the end vertex of the half-edge.
Edge *	edge ()
	Returns the half-edges's parent edge.
Hedge *	prev ()
	Returns the previous half-edge.
Hedge *	next ()
	Returns the next half-edge.
Hedge *	mate ()
	Returns the opposite half-edge.
int	level ()
	Returns half-edge resolution level.
bool	is_bdry ()
	Returns true if a half-edge belongs to mesh's boundary, else return false.
bool	is_subdiv_itself ()
	Returns true if the half-edge is a split half-edge, else return false.
Private Member Functions
void	set_face (Face *f)
	Links half-edge to face.
void	set_org (Vertex *v)
	Links half-edge to vertex.
void	set_next (Hedge *h)
	Updates next half-edge.
void	set_edge (Edge *e)
	Links half-edge to edge.
Hedge *	reuse (Vertex *v0, Vertex *v1)
	Redefines the vertices of the half-edge.
Private Attributes
Vertex *	o_
	Origin vertex pointer.
Hedge *	n_
	Next half-edge pointer.
Face *	f_
	Face pointer.
Edge *	e_
	Edge pointer.

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Detailed Description

The Hedge class represents Half-edge topological entity of mesh 4-8.

Definition at line 17 of file edge.h.

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Member Function Documentation

Vertex* A48::Hedge::dst (   )  [inline]

Returns the end vertex of the half-edge. Returns: vertex pointer. Definition at line 39 of file edge.h. References mate(), and org(). Referenced by A48::Mesh::bisect(), A48::Mesh::flip(), level(), A48::Mesh::link_mesh(), A48::Mesh::update_ref_front(), and A48::Mesh::update_simpl_front(). { return mate()->org(); };

Edge* A48::Hedge::edge (   )  [inline]

Returns the half-edges's parent edge. Returns: edge pointer. Definition at line 43 of file edge.h. References e_. Referenced by A48::Mesh::bisect(), A48::Vertex::is_bdry(), is_bdry(), A48::Mesh::refine(), A48::Mesh::simplify(), A48::Mesh::update_ref_front(), and A48::Mesh::update_simpl_front(). { return e_; };

Face* A48::Hedge::face (   )  [inline]

Returns the half-egde's face. Returns: face pointer. Definition at line 31 of file edge.h. References f_. Referenced by A48::Mesh::flip(), A48::Edge::is_bdry(), is_subdiv_itself(), A48::Mesh::is_triquad(), A48::Vertex::is_weld(), A48::Mesh::make_triquad(), A48::Mesh::refine(), A48::Mesh::split(), A48::Vertex::star_next(), and A48::Mesh::update_ref_front(). { return f_; };

bool Hedge::is_bdry (   )

Returns true if a half-edge belongs to mesh's boundary, else return false. Verifies if the edge belongs the mesh boundary. Returns: true if the edge belongs the boundary else returns false. Definition at line 70 of file edge.cpp. References edge(), and A48::Edge::is_bdry(). Referenced by A48::Mesh::link_mesh(). { return edge()->is_bdry(); }

bool A48::Hedge::is_subdiv_itself (   )  [inline]

Returns true if the half-edge is a split half-edge, else return false. Returns: true if split half-edge, else return false. Definition at line 65 of file edge.h. References face(), and A48::Face::subd_edge(). Referenced by A48::Edge::is_subdiv(), and A48::Mesh::update_simpl_front(). { return (face() != NULL && face()->subd_edge() == this); }

int Hedge::level (   )

Returns half-edge resolution level. Returns the half-edge level. The resolution level of the half-edge is defined by the vertex that belongs the highest resolution level. Returns: half-edge's resolution level. Definition at line 80 of file edge.cpp. References dst(), and org(). Referenced by A48::Mesh::bisect(), and A48::Edge::level(). { return max(org()->level(), dst()->level()); }

Hedge * Hedge::mate (   )

Returns the opposite half-edge. Returns: half-edge pointer. Definition at line 47 of file edge.cpp. References e_, and A48::Edge::hedge(). Referenced by A48::Mesh::bisect(), dst(), A48::Mesh::flip(), A48::Mesh::refine(), reuse(), A48::Mesh::split(), A48::Vertex::star_next(), A48::Mesh::update_simpl_front(), and A48::Mesh::weld(). { return (this == e_->hedge(0))? e_->hedge(1): e_->hedge(0); };

Hedge* A48::Hedge::next (   )  [inline]

Returns the next half-edge. Returns: half-edge pointer. Definition at line 51 of file edge.h. References n_. Referenced by A48::Mesh::flip(), A48::Face::hedge(), prev(), A48::Mesh::split(), A48::Vertex::star_next(), A48::Mesh::update_ref_front(), A48::Mesh::update_simpl_front(), and A48::Mesh::weld(). { return n_; };

Vertex* A48::Hedge::org (   )  [inline]

Returns the half-edge's origin vertex. Returns: vertex pointer. Definition at line 35 of file edge.h. References o_. Referenced by A48::Mesh::bisect(), A48::Edge::dst(), dst(), A48::Mesh::flip(), level(), A48::Edge::org(), A48::Mesh::simplify(), and A48::Face::vertex(). { return o_; };

Hedge* A48::Hedge::prev (   )  [inline]

Returns the previous half-edge. Returns: half-edge pointer. Definition at line 47 of file edge.h. References n_, and next(). Referenced by A48::Mesh::flip(), A48::Mesh::split(), A48::Mesh::update_ref_front(), A48::Mesh::update_simpl_front(), and A48::Mesh::weld(). { return (n_)? n_->next() : NULL; };

Hedge * Hedge::reuse (  Vertex *  v0, Vertex *  v1 )  [private]

Redefines the vertices of the half-edge. Updates the vertices of the half-edge. Parameters: v0  Pointer to origin vertex. v1  Pointer to end vertex. Returns: half-edge. Definition at line 58 of file edge.cpp. References mate(), set_face(), set_next(), and set_org(). Referenced by A48::Mesh::bisect(), A48::Mesh::flip(), and A48::Mesh::weld(). { set_org(v0); mate()->set_org(v1); set_next(NULL); mate()->set_next(NULL); set_face(NULL); mate()->set_face(NULL); return this; }

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

• edge.h
• edge.cpp

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