class EdgeContour

an edge of a contour with only topological information

Inheritance:

Public Methods

void	cutEdge () if the contour is closed then the current edge becomes the open edge of an open contour
VertexContour*	addVertex () add a vertex on an edge
VertexContour*	getFirstVertex () const Returns a pointer to the first vertex of an edge
VertexContour*	getSecondVertex () const Returns a pointer to the second vertex of an edge
int	getTopologicalDistance (const EdgeContour *e) const computes the shortest topological distance between two edges

Public

	Constructors EdgeContour (VertexContour *firstVertex, VertexContour *secondVertex=0) Build an edge given its two vertices
	Destructors virtual ~EdgeContour () empty Destructor

Protected Fields

VertexContour*

vertex [2] vertex[0] and vertex[1] is the oriented edge

Protected Methods

virtual VertexContour*

createVertex () const create a new vertex : use a virtual function in order to create inherited vertices

VertexContour* vertex[2]

vertex[0] and vertex[1] is the oriented edge

virtual VertexContour* createVertex() const

create a new vertex : use a virtual function in order to create inherited vertices

Constructors

EdgeContour(VertexContour *firstVertex, VertexContour *secondVertex=0)

Build an edge given its two vertices

Parameters:

firstVertex - the first edge vertex where the edge is stored
secondVertex - the second edge vertex

Destructors

virtual ~EdgeContour()

empty Destructor

void cutEdge()

if the contour is closed then the current edge becomes the open edge of an open contour

VertexContour* addVertex()

add a vertex on an edge

VertexContour* getFirstVertex() const

Returns a pointer to the first vertex of an edge

VertexContour* getSecondVertex() const

Returns a pointer to the second vertex of an edge

int getTopologicalDistance(const EdgeContour *e) const

computes the shortest topological distance between two edges

Returns:

the distance is positive if e is "after" the current edge is negative if e is "before" the current edge and is zero is the two edges do not belong to the same line

Parameters:

e - another edge of the same contour

Direct child classes:

EdgeContour3D
EdgeContour2D

alphabetic index hierarchy of classes

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(c)opyright by Malte Zöckler, Roland Wunderling
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