class EdgeActiveContour2D : public EdgeContour2D

an edge of a 2D active contour that include geometric information necessary for the computation of internal forces

Inheritance:

Public Methods

ActiveVertexContour2D*	getFirstVertex () const Returns a pointer to the first vertex of an edge
ActiveVertexContour2D*	getSecondVertex () const Returns a pointer to the second vertex of an edge
virtual VertexContour*	addVertex (void) add a vertex between two vertices
double	getLength () const returns edge length
double	getRestLength () const returns edge rest length
Vec2	getDirection () const returns edge direction
void	setRestLength (const double rl) set the edge rest length

Public

	Constructors EdgeActiveContour2D (ActiveVertexContour2D *firstVertex, ActiveVertexContour2D *secondVertex=0) Build an edge given its two vertices
	Destructors virtual ~EdgeActiveContour2D () empty Destructor

Protected Methods

virtual VertexContour*

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

Private Fields

double	restLength rest Length used for a spring
double	length length used to control the contour resolution
Vec2	direction A unit length vector corresponding to the direction of the edge

Inherited from EdgeContour2D:

Inherited from EdgeContour:

Public Methods

void cutEdge()

int getTopologicalDistance(const EdgeContour *e) const

Protected Fields

VertexContour* vertex[2]

double restLength

rest Length used for a spring

double length

length used to control the contour resolution

Vec2 direction

A unit length vector corresponding to the direction of the edge

Constructors

EdgeActiveContour2D(ActiveVertexContour2D *firstVertex, ActiveVertexContour2D *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 ~EdgeActiveContour2D()

empty Destructor

ActiveVertexContour2D* getFirstVertex() const

Returns a pointer to the first vertex of an edge

ActiveVertexContour2D* getSecondVertex() const

Returns a pointer to the second vertex of an edge

virtual VertexContour* addVertex(void)

add a vertex between two vertices

double getLength() const

returns edge length

double getRestLength() const

returns edge rest length

Vec2 getDirection() const

returns edge direction

void setRestLength(const double rl)

set the edge rest length

virtual VertexContour* createVertex() const

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

This class has no child classes.

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