|  | Box2D
    2.3.0
    A 2D Physics Engine for Games | 
#include <b2PolygonShape.h>
 
  
| Public Member Functions | |
| b2Shape * | Clone (b2BlockAllocator *allocator) const | 
| Implement b2Shape. | |
| int32 | GetChildCount () const | 
| void | Set (const b2Vec2 *points, int32 count) | 
| void | SetAsBox (float32 hx, float32 hy) | 
| void | SetAsBox (float32 hx, float32 hy, const b2Vec2 ¢er, float32 angle) | 
| bool | TestPoint (const b2Transform &transform, const b2Vec2 &p) 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 | 
| int32 | GetVertexCount () const | 
| Get the vertex count. | |
| const b2Vec2 & | GetVertex (int32 index) const | 
| Get a vertex by index. | |
| bool | Validate () const | 
|  Public Member Functions inherited from b2Shape | |
| Type | GetType () const | 
| Public Attributes | |
| b2Vec2 | m_centroid | 
| b2Vec2 | m_vertices [b2_maxPolygonVertices] | 
| b2Vec2 | m_normals [b2_maxPolygonVertices] | 
| int32 | m_count | 
|  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 } | 
A convex polygon. It is assumed that the interior of the polygon is to the left of each edge. Polygons have a maximum number of vertices equal to b2_maxPolygonVertices. In most cases you should not need many vertices for a convex polygon.
| 
 | virtual | 
Implements b2Shape.
| 
 | virtual | 
Implements b2Shape.
| 
 | virtual | 
Implements b2Shape.
| void b2PolygonShape::Set | ( | const b2Vec2 * | points, | 
| int32 | count | ||
| ) | 
Create a convex hull from the given array of local points. The count must be in the range [3, b2_maxPolygonVertices].
| void b2PolygonShape::SetAsBox | ( | float32 | hx, | 
| float32 | hy | ||
| ) | 
Build vertices to represent an axis-aligned box centered on the local origin.
| hx | the half-width. | 
| hy | the half-height. | 
| void b2PolygonShape::SetAsBox | ( | float32 | hx, | 
| float32 | hy, | ||
| const b2Vec2 & | center, | ||
| float32 | angle | ||
| ) | 
Build vertices to represent an oriented box.
| hx | the half-width. | 
| hy | the half-height. | 
| center | the center of the box in local coordinates. | 
| angle | the rotation of the box in local coordinates. | 
| 
 | virtual | 
Implements b2Shape.
| bool b2PolygonShape::Validate | ( | ) | const | 
Validate convexity. This is a very time consuming operation.
 1.8.17
 1.8.17