| Class | Description | |
|---|---|---|
| b2CircleDef | This structure is used to build circle shapes. | |
| b2CircleShape | A circle shape. | |
| b2EdgeChainDef | This structure is used to build edge shapes. | |
| b2EdgeShape | An edge shape. | |
| b2FilterData | This holds contact filtering data. | |
| b2MassData | This holds the mass data computed for a shape. | |
| b2PolygonDef | This structure is used to build polygon shapes. | |
| b2PolygonShape | Convex polygon. | |
| b2Shape | A shape is used for collision detection. | |
| b2ShapeDef | A shape definition is used to construct a shape. |