ReactPhysics3D: reactphysics3d::BoxShape Class Reference

| ReactPhysics3D v0.10.2 C++ Physics engine library

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Public Member Functions | List of all members
reactphysics3d::BoxShape Class Reference

This class represents a 3D box shape. More...

`#include <include/reactphysics3d/collision/shapes/BoxShape.h>`

Inheritance diagram for reactphysics3d::BoxShape:

## Public Member Functions
| BoxShape (const BoxShape &shape)=delete
| Deleted copy-constructor.
BoxShape & | operator= (const BoxShape &shape)=delete
| Deleted assignment operator.
const Vector3 & | getHalfExtents () const
| Return the half-extents of the box.
void | setHalfExtents (const Vector3 &halfExtents)
| Set the half-extents of the box.
virtual AABB | getLocalBounds () const override
| Return the local bounds of the shape in x, y and z directions.
virtual Vector3 | getLocalInertiaTensor (decimal mass) const override
| Return the local inertia tensor of the collision shape.
virtual decimal | getVolume () const override
| Compute and return the volume of the collision shape.
virtual uint32 | getNbFaces () const override
| Return the number of faces of the polyhedron.
virtual const HalfEdgeStructure::Face & | getFace (uint32 faceIndex) const override
| Return a given face of the polyhedron.
virtual uint32 | getNbVertices () const override
| Return the number of vertices of the polyhedron.
virtual const HalfEdgeStructure::Vertex & | getVertex (uint32 vertexIndex) const override
| Return a given vertex of the polyhedron.
virtual uint32 | getNbHalfEdges () const override
| Return the number of half-edges of the polyhedron.
virtual const HalfEdgeStructure::Edge & | getHalfEdge (uint32 edgeIndex) const override
| Return a given half-edge of the polyhedron.
virtual Vector3 | getVertexPosition (uint32 vertexIndex) const override
| Return the position of a given vertex.
virtual Vector3 | getFaceNormal (uint32 faceIndex) const override
| Return the normal vector of a given face of the polyhedron.
virtual Vector3 | getCentroid () const override
| Return the centroid of the polyhedron.
virtual std::string | to_string () const override
| Return the string representation of the shape.
Public Member Functions inherited from reactphysics3d::ConvexPolyhedronShape
| ConvexPolyhedronShape (CollisionShapeName name, MemoryAllocator &allocator)
| Constructor.
virtual | ~ConvexPolyhedronShape () override=default
| Destructor.
| ConvexPolyhedronShape (const ConvexPolyhedronShape &shape)=delete
| Deleted copy-constructor.
ConvexPolyhedronShape & | operator= (const ConvexPolyhedronShape &shape)=delete
| Deleted assignment operator.
virtual bool | isPolyhedron () const override
| Return true if the collision shape is a polyhedron.
uint32 | findMostAntiParallelFace (const Vector3 &direction) const
| Find and return the index of the polyhedron face with the most anti-parallel face normal given a direction vector.
Public Member Functions inherited from reactphysics3d::ConvexShape
| ConvexShape (CollisionShapeName name, CollisionShapeType type, MemoryAllocator &allocator, decimal margin=decimal(0.0))
| Constructor.
virtual | ~ConvexShape () override=default
| Destructor.
| ConvexShape (const ConvexShape &shape)=delete
| Deleted copy-constructor.
ConvexShape & | operator= (const ConvexShape &shape)=delete
| Deleted assignment operator.
decimal | getMargin () const
| Return the current object margin.
virtual bool | isConvex () const override
| Return true if the collision shape is convex, false if it is concave.
Public Member Functions inherited from reactphysics3d::CollisionShape
| CollisionShape (CollisionShapeName name, CollisionShapeType type, MemoryAllocator &allocator)
| Constructor.
virtual | ~CollisionShape ()=default
| Destructor.
| CollisionShape (const CollisionShape &shape)=delete
| Deleted copy-constructor.
CollisionShape & | operator= (const CollisionShape &shape)=delete
| Deleted assignment operator.
CollisionShapeName | getName () const
| Return the name of the collision shape.
CollisionShapeType | getType () const
| Return the type of the collision shape.
uint32 | getId () const
| Return the id of the shape.
virtual AABB | computeTransformedAABB (const Transform &transform) const
| Compute the transformed AABB of the collision shape given a transform.

## Detailed Description

This class represents a 3D box shape.

Those axis are unit length. The three extents are half-widths of the box along the three axis x, y, z local axis. The "transform" of the corresponding body will give an orientation and a position to the box.

## Member Function Documentation

## ◆ getCentroid()

RP3D_FORCE_INLINE Vector3 reactphysics3d::BoxShape::getCentroid | ( |  | ) | const
| overridevirtual

Return the centroid of the polyhedron.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getFace()

const HalfEdgeStructure::Face & BoxShape::getFace | ( | uint32 | faceIndex | ) | const
| overridevirtual

Return a given face of the polyhedron.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getFaceNormal()

RP3D_FORCE_INLINE Vector3 reactphysics3d::BoxShape::getFaceNormal | ( | uint32 | faceIndex | ) | const
| overridevirtual

Return the normal vector of a given face of the polyhedron.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getHalfEdge()

const HalfEdgeStructure::Edge & BoxShape::getHalfEdge | ( | uint32 | edgeIndex | ) | const
| overridevirtual

Return a given half-edge of the polyhedron.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getHalfExtents()

RP3D_FORCE_INLINE const Vector3 & reactphysics3d::BoxShape::getHalfExtents | ( |  | ) | const

Return the half-extents of the box.

Returns
  The vector with the three half-extents of the box shape

## ◆ getLocalBounds()

AABB BoxShape::getLocalBounds | ( |  | ) | const
| overridevirtual

Return the local bounds of the shape in x, y and z directions.

This method is used to compute the AABB of the box.

Returns
  The AABB of the shape

Implements reactphysics3d::CollisionShape.

## ◆ getLocalInertiaTensor()

Vector3 BoxShape::getLocalInertiaTensor | ( | decimal | mass | ) | const
| overridevirtual

Return the local inertia tensor of the collision shape.

Parameters

  mass | Mass to use to compute the inertia tensor of the collision shape

Implements reactphysics3d::CollisionShape.

## ◆ getNbFaces()

RP3D_FORCE_INLINE uint32 reactphysics3d::BoxShape::getNbFaces | ( |  | ) | const
| overridevirtual

Return the number of faces of the polyhedron.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getNbHalfEdges()

RP3D_FORCE_INLINE uint32 reactphysics3d::BoxShape::getNbHalfEdges | ( |  | ) | const
| overridevirtual

Return the number of half-edges of the polyhedron.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getNbVertices()

RP3D_FORCE_INLINE uint32 reactphysics3d::BoxShape::getNbVertices | ( |  | ) | const
| overridevirtual

Return the number of vertices of the polyhedron.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getVertex()

const HalfEdgeStructure::Vertex & BoxShape::getVertex | ( | uint32 | vertexIndex | ) | const
| overridevirtual

Return a given vertex of the polyhedron.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getVertexPosition()

RP3D_FORCE_INLINE Vector3 reactphysics3d::BoxShape::getVertexPosition | ( | uint32 | vertexIndex | ) | const
| overridevirtual

Return the position of a given vertex.

Implements reactphysics3d::ConvexPolyhedronShape.

## ◆ getVolume()

RP3D_FORCE_INLINE decimal reactphysics3d::BoxShape::getVolume | ( |  | ) | const
| overridevirtual

Compute and return the volume of the collision shape.

Implements reactphysics3d::CollisionShape.

## ◆ setHalfExtents()

RP3D_FORCE_INLINE void reactphysics3d::BoxShape::setHalfExtents | ( | const Vector3 & | halfExtents | ) |

Set the half-extents of the box.

Note that you might want to recompute the inertia tensor and center of mass of the body after changing the size of the collision shape.

Parameters

  halfExtents | The vector with the three half-extents of the box

## ◆ to_string()

RP3D_FORCE_INLINE std::string reactphysics3d::BoxShape::to_string | ( |  | ) | const
| overridevirtual

Return the string representation of the shape.

Implements reactphysics3d::CollisionShape.

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

- include/reactphysics3d/collision/shapes/BoxShape.h
- src/collision/shapes/BoxShape.cpp