The btBox2dShape is a box primitive around the origin, its sides axis aligned with length specified by half extents, in local shape coordinates. When used as part of a btCollisionObject or btRigidBody it will be an oriented box in world space. More...

#include <btBox2dShape.h>

Inheritance diagram for btBox2dShape:

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Collaboration diagram for btBox2dShape:

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Public Member Functions
	BT_DECLARE_ALIGNED_ALLOCATOR ()

btVector3	getHalfExtentsWithMargin () const

const btVector3 &	getHalfExtentsWithoutMargin () const

virtual btVector3	localGetSupportingVertex (const btVector3 &vec) const

btVector3	localGetSupportingVertexWithoutMargin (const btVector3 &vec) const

virtual void	batchedUnitVectorGetSupportingVertexWithoutMargin (const btVector3 vectors, btVector3 supportVerticesOut, int numVectors) const

	btBox2dShape (const btVector3 &boxHalfExtents)
	a btBox2dShape is a flat 2D box in the X-Y plane (Z extents are zero)

virtual void	setMargin (btScalar collisionMargin)

virtual void	setLocalScaling (const btVector3 &scaling)

virtual void	getAabb (const btTransform &t, btVector3 &aabbMin, btVector3 &aabbMax) const
	getAabb's default implementation is brute force, expected derived classes to implement a fast dedicated version

virtual void	calculateLocalInertia (btScalar mass, btVector3 &inertia) const

int	getVertexCount () const

virtual int	getNumVertices () const

const btVector3 *	getVertices () const

const btVector3 *	getNormals () const

virtual void	getPlane (btVector3 &planeNormal, btVector3 &planeSupport, int i) const

const btVector3 &	getCentroid () const

virtual int	getNumPlanes () const

virtual int	getNumEdges () const

virtual void	getVertex (int i, btVector3 &vtx) const

virtual void	getPlaneEquation (btVector4 &plane, int i) const

virtual void	getEdge (int i, btVector3 &pa, btVector3 &pb) const

virtual bool	isInside (const btVector3 &pt, btScalar tolerance) const

virtual const char *	getName () const

virtual int	getNumPreferredPenetrationDirections () const

virtual void	getPreferredPenetrationDirection (int index, btVector3 &penetrationVector) const

Public Member Functions inherited from btPolyhedralConvexShape
	BT_DECLARE_ALIGNED_ALLOCATOR ()

	btPolyhedralConvexShape ()

virtual	~btPolyhedralConvexShape ()

virtual bool	initializePolyhedralFeatures (int shiftVerticesByMargin=0)
	optional method mainly used to generate multiple contact points by clipping polyhedral features (faces/edges) experimental/work-in-progress

const btConvexPolyhedron *	getConvexPolyhedron () const

Public Member Functions inherited from btConvexInternalShape
	BT_DECLARE_ALIGNED_ALLOCATOR ()

virtual	~btConvexInternalShape ()

const btVector3 &	getImplicitShapeDimensions () const

void	setImplicitShapeDimensions (const btVector3 &dimensions)
	warning: use setImplicitShapeDimensions with care changing a collision shape while the body is in the world is not recommended, it is best to remove the body from the world, then make the change, and re-add it alternatively flush the contact points, see documentation for 'cleanProxyFromPairs'

void	setSafeMargin (btScalar minDimension, btScalar defaultMarginMultiplier=0.1f)

void	setSafeMargin (const btVector3 &halfExtents, btScalar defaultMarginMultiplier=0.1f)

void	getAabb (const btTransform &t, btVector3 &aabbMin, btVector3 &aabbMax) const
	getAabb's default implementation is brute force, expected derived classes to implement a fast dedicated version

virtual void	getAabbSlow (const btTransform &t, btVector3 &aabbMin, btVector3 &aabbMax) const

virtual const btVector3 &	getLocalScaling () const

const btVector3 &	getLocalScalingNV () const

virtual btScalar	getMargin () const

btScalar	getMarginNV () const

virtual int	calculateSerializeBufferSize () const

virtual const char *	serialize (void dataBuffer, btSerializer serializer) const
	fills the dataBuffer and returns the struct name (and 0 on failure)

Public Member Functions inherited from btConvexShape
	BT_DECLARE_ALIGNED_ALLOCATOR ()

	btConvexShape ()
	not supported on IBM SDK, until we fix the alignment of btVector3

virtual	~btConvexShape ()

btVector3	localGetSupportVertexWithoutMarginNonVirtual (const btVector3 &vec) const

btVector3	localGetSupportVertexNonVirtual (const btVector3 &vec) const

btScalar	getMarginNonVirtual () const

void	getAabbNonVirtual (const btTransform &t, btVector3 &aabbMin, btVector3 &aabbMax) const

virtual void	project (const btTransform &trans, const btVector3 &dir, btScalar &minProj, btScalar &maxProj, btVector3 &witnesPtMin, btVector3 &witnesPtMax) const

Public Member Functions inherited from btCollisionShape
	BT_DECLARE_ALIGNED_ALLOCATOR ()

	btCollisionShape ()

virtual	~btCollisionShape ()

virtual void	getBoundingSphere (btVector3 &center, btScalar &radius) const

virtual btScalar	getAngularMotionDisc () const
	getAngularMotionDisc returns the maximum radius needed for Conservative Advancement to handle time-of-impact with rotations.

virtual btScalar	getContactBreakingThreshold (btScalar defaultContactThresholdFactor) const

void	calculateTemporalAabb (const btTransform &curTrans, const btVector3 &linvel, const btVector3 &angvel, btScalar timeStep, btVector3 &temporalAabbMin, btVector3 &temporalAabbMax) const
	calculateTemporalAabb calculates the enclosing aabb for the moving object over interval [0..timeStep) result is conservative

bool	isPolyhedral () const

bool	isConvex2d () const

bool	isConvex () const

bool	isNonMoving () const

bool	isConcave () const

bool	isCompound () const

bool	isSoftBody () const

bool	isInfinite () const
	isInfinite is used to catch simulation error (aabb check)

int	getShapeType () const

virtual btVector3	getAnisotropicRollingFrictionDirection () const
	the getAnisotropicRollingFrictionDirection can be used in combination with setAnisotropicFriction See Bullet/Demos/RollingFrictionDemo for an example

void	setUserPointer (void *userPtr)
	optional user data pointer

void *	getUserPointer () const

void	setUserIndex (int index)

int	getUserIndex () const

virtual void	serializeSingleShape (btSerializer *serializer) const

Private Attributes
btVector3	m_centroid

btVector3	m_vertices [4]

btVector3	m_normals [4]

Additional Inherited Members
Protected Member Functions inherited from btConvexInternalShape
	btConvexInternalShape ()

Protected Attributes inherited from btPolyhedralConvexShape
btConvexPolyhedron *	m_polyhedron

Protected Attributes inherited from btConvexInternalShape
btVector3	m_localScaling

btVector3	m_implicitShapeDimensions

btScalar	m_collisionMargin

btScalar	m_padding

Protected Attributes inherited from btCollisionShape
int	m_shapeType

void *	m_userPointer

int	m_userIndex

Detailed Description

The btBox2dShape is a box primitive around the origin, its sides axis aligned with length specified by half extents, in local shape coordinates. When used as part of a btCollisionObject or btRigidBody it will be an oriented box in world space.

Definition at line 26 of file btBox2dShape.h.

Constructor & Destructor Documentation

◆ btBox2dShape()

btBox2dShape::btBox2dShape ( const btVector3 & boxHalfExtents )

inline

a btBox2dShape is a flat 2D box in the X-Y plane (Z extents are zero)

Definition at line 89 of file btBox2dShape.h.

Member Function Documentation

◆ batchedUnitVectorGetSupportingVertexWithoutMargin()

virtual void btBox2dShape::batchedUnitVectorGetSupportingVertexWithoutMargin	(	const btVector3 *	vectors,
		btVector3 *	supportVerticesOut,
		int	numVectors ) const

inlinevirtual

Reimplemented from btPolyhedralConvexShape.

Definition at line 73 of file btBox2dShape.h.

◆ BT_DECLARE_ALIGNED_ALLOCATOR()

btBox2dShape::BT_DECLARE_ALIGNED_ALLOCATOR ( )

◆ calculateLocalInertia()

void btBox2dShape::calculateLocalInertia	(	btScalar	mass,
		btVector3 &	inertia ) const

virtual

Reimplemented from btPolyhedralConvexShape.

Definition at line 28 of file btBox2dShape.cpp.

◆ getAabb()

void btBox2dShape::getAabb	(	const btTransform &	t,
		btVector3 &	aabbMin,
		btVector3 &	aabbMax ) const

virtual

getAabb's default implementation is brute force, expected derived classes to implement a fast dedicated version

Implements btConvexShape.

Definition at line 22 of file btBox2dShape.cpp.

◆ getCentroid()

const btVector3 & btBox2dShape::getCentroid ( ) const

inline

Definition at line 183 of file btBox2dShape.h.

◆ getEdge()

virtual void btBox2dShape::getEdge	(	int	i,
		btVector3 &	pa,
		btVector3 &	pb ) const

inlinevirtual

Implements btPolyhedralConvexShape.

Definition at line 242 of file btBox2dShape.h.

◆ getHalfExtentsWithMargin()

btVector3 btBox2dShape::getHalfExtentsWithMargin ( ) const

inline

Definition at line 39 of file btBox2dShape.h.

◆ getHalfExtentsWithoutMargin()

const btVector3 & btBox2dShape::getHalfExtentsWithoutMargin ( ) const

inline

Definition at line 47 of file btBox2dShape.h.

◆ getName()

virtual const char * btBox2dShape::getName ( ) const

inlinevirtual

Implements btCollisionShape.

Definition at line 331 of file btBox2dShape.h.

◆ getNormals()

const btVector3 * btBox2dShape::getNormals ( ) const

inline

Definition at line 162 of file btBox2dShape.h.

◆ getNumEdges()

virtual int btBox2dShape::getNumEdges ( ) const

inlinevirtual

Implements btPolyhedralConvexShape.

Definition at line 195 of file btBox2dShape.h.

◆ getNumPlanes()

virtual int btBox2dShape::getNumPlanes ( ) const

inlinevirtual

Implements btPolyhedralConvexShape.

Definition at line 188 of file btBox2dShape.h.

◆ getNumPreferredPenetrationDirections()

virtual int btBox2dShape::getNumPreferredPenetrationDirections ( ) const

inlinevirtual

Reimplemented from btConvexInternalShape.

Definition at line 336 of file btBox2dShape.h.

◆ getNumVertices()

virtual int btBox2dShape::getNumVertices ( ) const

inlinevirtual

Implements btPolyhedralConvexShape.

Definition at line 152 of file btBox2dShape.h.

◆ getPlane()

virtual void btBox2dShape::getPlane	(	btVector3 &	planeNormal,
		btVector3 &	planeSupport,
		int	i ) const

inlinevirtual

Implements btPolyhedralConvexShape.

Definition at line 173 of file btBox2dShape.h.

◆ getPlaneEquation()

virtual void btBox2dShape::getPlaneEquation	(	btVector4 &	plane,
		int	i ) const

inlinevirtual

Definition at line 212 of file btBox2dShape.h.

◆ getPreferredPenetrationDirection()

virtual void btBox2dShape::getPreferredPenetrationDirection	(	int	index,
		btVector3 &	penetrationVector ) const

inlinevirtual

Reimplemented from btConvexInternalShape.

Definition at line 341 of file btBox2dShape.h.

◆ getVertex()

virtual void btBox2dShape::getVertex	(	int	i,
		btVector3 &	vtx ) const

inlinevirtual

Implements btPolyhedralConvexShape.

Definition at line 201 of file btBox2dShape.h.

◆ getVertexCount()

int btBox2dShape::getVertexCount ( ) const

inline

Definition at line 147 of file btBox2dShape.h.

◆ getVertices()

const btVector3 * btBox2dShape::getVertices ( ) const

inline

Definition at line 157 of file btBox2dShape.h.

◆ isInside()

virtual bool btBox2dShape::isInside	(	const btVector3 &	pt,
		btScalar	tolerance ) const

inlinevirtual

Implements btPolyhedralConvexShape.

Definition at line 313 of file btBox2dShape.h.

◆ localGetSupportingVertex()

virtual btVector3 btBox2dShape::localGetSupportingVertex ( const btVector3 & vec ) const

inlinevirtual

Reimplemented from btConvexInternalShape.

Definition at line 53 of file btBox2dShape.h.

◆ localGetSupportingVertexWithoutMargin()

btVector3 btBox2dShape::localGetSupportingVertexWithoutMargin ( const btVector3 & vec ) const

inlinevirtual

Reimplemented from btPolyhedralConvexShape.

Definition at line 64 of file btBox2dShape.h.

◆ setLocalScaling()

virtual void btBox2dShape::setLocalScaling ( const btVector3 & scaling )

inlinevirtual

Reimplemented from btConvexInternalShape.

Definition at line 125 of file btBox2dShape.h.

◆ setMargin()

virtual void btBox2dShape::setMargin ( btScalar collisionMargin )

inlinevirtual

Reimplemented from btConvexInternalShape.

Definition at line 114 of file btBox2dShape.h.

Member Data Documentation

◆ m_centroid

btVector3 btBox2dShape::m_centroid

private

Definition at line 31 of file btBox2dShape.h.

◆ m_normals

btVector3 btBox2dShape::m_normals[4]

private

Definition at line 33 of file btBox2dShape.h.

◆ m_vertices

btVector3 btBox2dShape::m_vertices[4]

private

Definition at line 32 of file btBox2dShape.h.

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

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ btBox2dShape()

Member Function Documentation

◆ batchedUnitVectorGetSupportingVertexWithoutMargin()

◆ BT_DECLARE_ALIGNED_ALLOCATOR()

◆ calculateLocalInertia()

◆ getAabb()

◆ getCentroid()

◆ getEdge()

◆ getHalfExtentsWithMargin()

◆ getHalfExtentsWithoutMargin()

◆ getName()

◆ getNormals()

◆ getNumEdges()

◆ getNumPlanes()

◆ getNumPreferredPenetrationDirections()

◆ getNumVertices()

◆ getPlane()

◆ getPlaneEquation()

◆ getPreferredPenetrationDirection()

◆ getVertex()

◆ getVertexCount()

◆ getVertices()

◆ isInside()

◆ localGetSupportingVertex()

◆ localGetSupportingVertexWithoutMargin()

◆ setLocalScaling()

◆ setMargin()

Member Data Documentation

◆ m_centroid

◆ m_normals

◆ m_vertices