G3D::MeshAlg::Edge Class Reference

#include <MeshAlg.h>

Public Member Functions
	Edge ()
bool	containsVertex (int v) const
bool	inFace (int f) const
bool	boundary () const
Edge	reverse () const

Public Attributes
int	vertexIndex [2]
int	faceIndex [2]

Detailed Description

Oriented, indexed edge

Constructor & Destructor Documentation

G3D::MeshAlg::Edge::Edge

(

)

 {
 for (int i = 0; i < 2; ++i) {
 vertexIndex[i] = 0;
 // Negative face indices are faces that don't exist
 faceIndex[i] = -1;
 }
}

Member Function Documentation

bool G3D::MeshAlg::Edge::boundary ( ) const

inline

Returns true if either faceIndex is NONE.

 {
 return (faceIndex[0] == Face::NONE) ||
 (faceIndex[1] == Face::NONE);
 }

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bool G3D::MeshAlg::Edge::containsVertex ( int  v ) const

inline

 {
 return contains(vertexIndex, 2, v);
 }

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bool G3D::MeshAlg::Edge::inFace ( int  f ) const

inline

Returns true if f is contained in the faceIndex array in either slot. To see if it is forward in that face, just check edge.faceIndex[0] == f.

 {
 return contains(faceIndex, 2, f);
 }

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Edge G3D::MeshAlg::Edge::reverse ( ) const

inline

Returns the reversed edge.

 {
 Edge e;
 e.vertexIndex[0] = vertexIndex[1];
 e.vertexIndex[1] = vertexIndex[0];
 e.faceIndex[0] = faceIndex[1];
 e.faceIndex[1] = faceIndex[0];
 return e;
 }

Member Data Documentation

int G3D::MeshAlg::Edge::faceIndex[2]

The edge is directed forward in face 0 backward in face 1. Face index of MeshAlg::Face::NONE indicates a boundary (a.k.a. crack, broken) edge.

int G3D::MeshAlg::Edge::vertexIndex[2]

Degenerate edges may include the same vertex times.

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

• dep/g3dlite/include/G3D/MeshAlg.h
• dep/g3dlite/source/MeshAlg.cpp