#include <b2EdgeShape.h>

Inherits b2Shape.

Public Member Functions
void	Set (const b2Vec2 &v1, const b2Vec2 &v2)
	Set this as an isolated edge.

b2Shape *	Clone (b2BlockAllocator *allocator) const
	Implement b2Shape.

int32	GetChildCount () const

bool	TestPoint (const b2Transform &transform, const b2Vec2 &p) const

void	ComputeDistance (const b2Transform &xf, const b2Vec2 &p, float32 distance, b2Vec2 normal, int32 childIndex) const

bool	RayCast (b2RayCastOutput *output, const b2RayCastInput &input, const b2Transform &transform, int32 childIndex) const
	Implement b2Shape.

void	ComputeAABB (b2AABB *aabb, const b2Transform &transform, int32 childIndex) const

void	ComputeMass (b2MassData *massData, float32 density) const

Public Member Functions inherited from b2Shape
Type	GetType () const

Public Attributes
b2Vec2	m_vertex1
	These are the edge vertices.

b2Vec2	m_vertex2

b2Vec2	m_vertex0
	Optional adjacent vertices. These are used for smooth collision.

b2Vec2	m_vertex3

bool	m_hasVertex0

bool	m_hasVertex3

Public Attributes inherited from b2Shape
Type	m_type

float32	m_radius

Additional Inherited Members
Public Types inherited from b2Shape
enum	Type { e_circle = 0, e_edge = 1, e_polygon = 2, e_chain = 3, e_typeCount = 4 }

Detailed Description

A line segment (edge) shape. These can be connected in chains or loops to other edge shapes. The connectivity information is used to ensure correct contact normals.

Member Function Documentation

void b2EdgeShape::ComputeAABB	(	b2AABB *	aabb,
		const b2Transform &	transform,
		int32	childIndex
	)		const

virtual

See Also: b2Shape::ComputeAABB

Implements b2Shape.

void b2EdgeShape::ComputeDistance	(	const b2Transform &	xf,
		const b2Vec2 &	p,
		float32 *	distance,
		b2Vec2 *	normal,
		int32	childIndex
	)		const

virtual

Compute the distance from the current shape to the specified point. This only works for convex shapes.

Parameters

xf	the shape world transform.
p	a point in world coordinates.
distance	returns the distance from the current shape.
normal	returns the direction in which the distance increases.

Implements b2Shape.