A48::Edge Class Reference

The Edge class represents the edge topological entity of the 4-8 mesh. More...

#include <edge.h>

Inheritance diagram for A48::Edge:

[legend]Collaboration diagram for A48::Edge:

[legend]List of all members.

Public Member Functions
	Edge (Vertex *p0, Vertex *p1)
Hedge *	hedge (int i)
Vertex *	org ()
	Returns the origin vertex.
Vertex *	dst ()
	Returns the end vertex.
int	level ()
	Returns the edge resolution level.
bool	is_bdry ()
	Returns true if the edge belongs to mesh border, else return false.
bool	is_subdiv ()
	Returns true if the edge is a subdivision edge, else return false.
Private Attributes
Hedge	h_ [2]
	Two half-edges. One for each face use.

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Detailed Description

The Edge class represents the edge topological entity of the 4-8 mesh.

This class inherits the Markable class properties (used to convert a general mesh into a triangulated quadrangulation). The Edge class also inherits the MxHeapable class properties. The MxHeapable class is subclass of MxHeap that is a component of the priority_queue class. The MxHeap class is used to refine and simplify schemes of the mesh 4-8.

Definition at line 98 of file edge.h.

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Constructor & Destructor Documentation

Edge::Edge (  Vertex *  p0, Vertex *  p1 )

Updates the vertices of the adge. Also updates the half-edge fields. Parameters: p0  Pointer to origin vertex. p1  Pointer to end vertex. Definition at line 19 of file edge.cpp. References h_, A48::Hedge::set_edge(), A48::Hedge::set_face(), A48::Hedge::set_next(), and A48::Hedge::set_org(). { h_[0].set_org(p0); h_[1].set_org(p1); h_[0].set_face(NULL); h_[1].set_face(NULL);; h_[0].set_next(NULL); h_[1].set_next(NULL); h_[0].set_edge(this); h_[1].set_edge(this); }

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Member Function Documentation

Hedge * Edge::hedge (  int  i  )

Returns a half-edge specified by the index i. i=0 half-edge of the origin vertex. i=1 half-edge if the end vertex. Parameters: i  Index of the half-edge. Returns: half-edge of the edge. Definition at line 34 of file edge.cpp. References h_. Referenced by A48::Mesh::adapt_refine(), A48::Mesh::add_edge(), A48::Mesh::is_triquad(), A48::Mesh::make_triquad(), A48::Hedge::mate(), A48::Mesh::update_ref_front(), and A48::Mesh::update_simpl_front(). { switch (i) { case 0: return &h_[0]; case 1: return &h_[1]; } throw Error("edge n"); }

bool A48::Edge::is_bdry (   )  [inline]

Returns true if the edge belongs to mesh border, else return false. Returns: boolean type (true or false). Definition at line 122 of file edge.h. References A48::Hedge::face(), and h_. Referenced by A48::Vertex::is_bdry(), A48::Hedge::is_bdry(), and A48::Mesh::is_triquad(). { return (h_[0].face() == NULL || h_[1].face() == NULL); }

bool A48::Edge::is_subdiv (   )  [inline]

Returns true if the edge is a subdivision edge, else return false. The edge is a subdiv edge if its half-edges are subdiv half-edges. Definition at line 127 of file edge.h. References h_, and A48::Hedge::is_subdiv_itself(). Referenced by A48::Mesh::update_ref_front(). { return (h_[0].is_subdiv_itself() || h_[1].is_subdiv_itself()); }

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

• edge.h
• edge.cpp

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