| Box2D 2.2.1 A 2D Physics Engine for Games

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b2CircleShape Class Reference

A circle shape. More...

`#include <b2CircleShape.h>`

Inheritance diagram for b2CircleShape:

List of all members.

## Public Member Functions

b2Shape * | Clone (b2BlockAllocator *allocator) const
| Implement b2Shape.
int32 | GetChildCount () const
bool | TestPoint (const b2Transform &transform, const b2Vec2 &p) const
| Implement b2Shape.
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
int32 | GetSupport (const b2Vec2 &d) const
| Get the supporting vertex index in the given direction.
const b2Vec2 & | GetSupportVertex (const b2Vec2 &d) const
| Get the supporting vertex in the given direction.
int32 | GetVertexCount () const
| Get the vertex count.
const b2Vec2 & | GetVertex (int32 index) const
| Get a vertex by index. Used by b2Distance.

## Public Attributes

b2Vec2 | m_p
| Position.

## Detailed Description

A circle shape.

## Member Function Documentation

void b2CircleShape::ComputeAABB | ( | b2AABB * | aabb,
|  | const b2Transform & | transform,
|  | int32 | childIndex
| ) |  | const`[virtual]`

See also:
  b2Shape::ComputeAABB

Implements b2Shape.

void b2CircleShape::ComputeMass | ( | b2MassData * | massData,
|  | float32 | density
| ) |  | const`[virtual]`

See also:
  b2Shape::ComputeMass

Implements b2Shape.

int32 b2CircleShape::GetChildCount | ( |  | ) | const`[virtual]`

See also:
  b2Shape::GetChildCount

Implements b2Shape.

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

- b2CircleShape.h
- b2CircleShape.cpp

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