The btUniformScalingShape allows to re-use uniform scaled instances of btConvexShape in a memory efficient way. More...

#include <btUniformScalingShape.h>

Inheritance diagram for btUniformScalingShape:

[legend]

Collaboration diagram for btUniformScalingShape:

[legend]

Public Member Functions
	BT_DECLARE_ALIGNED_ALLOCATOR ()
	btUniformScalingShape (btConvexShape *convexChildShape, btScalar uniformScalingFactor)
virtual	~btUniformScalingShape ()
virtual btVector3	localGetSupportingVertexWithoutMargin (const btVector3 &vec) const
virtual btVector3	localGetSupportingVertex (const btVector3 &vec) const
virtual void	batchedUnitVectorGetSupportingVertexWithoutMargin (const btVector3 vectors, btVector3 supportVerticesOut, int numVectors) const
virtual void	calculateLocalInertia (btScalar mass, btVector3 &inertia) const
btScalar	getUniformScalingFactor () const
btConvexShape *	getChildShape ()
const btConvexShape *	getChildShape () const
virtual const char *	getName () const
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 void	setLocalScaling (const btVector3 &scaling)
virtual const btVector3 &	getLocalScaling () const
virtual void	setMargin (btScalar margin)
virtual btScalar	getMargin () const
virtual int	getNumPreferredPenetrationDirections () const
virtual void	getPreferredPenetrationDirection (int index, btVector3 &penetrationVector) const
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
void	setUserIndex2 (int index)
int	getUserIndex2 () 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)
virtual void	serializeSingleShape (btSerializer *serializer) const

Private Attributes
btConvexShape *	m_childConvexShape
btScalar	m_uniformScalingFactor

Additional Inherited Members
Protected Attributes inherited from btCollisionShape
int	m_shapeType
void *	m_userPointer
int	m_userIndex
int	m_userIndex2

Detailed Description

The btUniformScalingShape allows to re-use uniform scaled instances of btConvexShape in a memory efficient way.

Istead of using btUniformScalingShape, it is better to use the non-uniform setLocalScaling method on convex shapes that implement it.

Definition at line 24 of file btUniformScalingShape.h.

Constructor & Destructor Documentation

◆ btUniformScalingShape()

btUniformScalingShape::btUniformScalingShape	(	btConvexShape *	convexChildShape,
		btScalar	uniformScalingFactor )

Definition at line 18 of file btUniformScalingShape.cpp.

◆ ~btUniformScalingShape()

btUniformScalingShape::~btUniformScalingShape ( )

virtual

Definition at line 23 of file btUniformScalingShape.cpp.

Member Function Documentation

◆ batchedUnitVectorGetSupportingVertexWithoutMargin()

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

virtual

Implements btConvexShape.

Definition at line 34 of file btUniformScalingShape.cpp.

◆ BT_DECLARE_ALIGNED_ALLOCATOR()

btUniformScalingShape::BT_DECLARE_ALIGNED_ALLOCATOR ( )

◆ calculateLocalInertia()

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

virtual

this linear upscaling is not realistic, but we don't deal with large mass ratios...

Implements btCollisionShape.

Definition at line 51 of file btUniformScalingShape.cpp.

◆ getAabb()

void btUniformScalingShape::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 60 of file btUniformScalingShape.cpp.

◆ getAabbSlow()

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

virtual

Implements btConvexShape.

Definition at line 65 of file btUniformScalingShape.cpp.

◆ getChildShape() [1/2]

btConvexShape * btUniformScalingShape::getChildShape ( )

inline

Definition at line 51 of file btUniformScalingShape.h.

◆ getChildShape() [2/2]

const btConvexShape * btUniformScalingShape::getChildShape ( ) const

inline

Definition at line 56 of file btUniformScalingShape.h.

◆ getLocalScaling()

const btVector3 & btUniformScalingShape::getLocalScaling ( ) const

virtual

Implements btConvexShape.

Definition at line 128 of file btUniformScalingShape.cpp.

◆ getMargin()

btScalar btUniformScalingShape::getMargin ( ) const

virtual

Implements btConvexShape.

Definition at line 137 of file btUniformScalingShape.cpp.

◆ getName()

virtual const char * btUniformScalingShape::getName ( ) const

inlinevirtual

Implements btCollisionShape.

Definition at line 61 of file btUniformScalingShape.h.

◆ getNumPreferredPenetrationDirections()

int btUniformScalingShape::getNumPreferredPenetrationDirections ( ) const

virtual

Implements btConvexShape.

Definition at line 142 of file btUniformScalingShape.cpp.

◆ getPreferredPenetrationDirection()

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

virtual

Implements btConvexShape.

Definition at line 147 of file btUniformScalingShape.cpp.

◆ getUniformScalingFactor()

btScalar btUniformScalingShape::getUniformScalingFactor ( ) const

inline

Definition at line 46 of file btUniformScalingShape.h.

◆ localGetSupportingVertex()

btVector3 btUniformScalingShape::localGetSupportingVertex ( const btVector3 & vec ) const

virtual

Implements btConvexShape.

Definition at line 44 of file btUniformScalingShape.cpp.

◆ localGetSupportingVertexWithoutMargin()

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

virtual

Implements btConvexShape.

Definition at line 27 of file btUniformScalingShape.cpp.

◆ setLocalScaling()

void btUniformScalingShape::setLocalScaling ( const btVector3 & scaling )

virtual

Implements btConvexShape.

Definition at line 123 of file btUniformScalingShape.cpp.

◆ setMargin()

void btUniformScalingShape::setMargin ( btScalar margin )

virtual

Implements btConvexShape.

Definition at line 133 of file btUniformScalingShape.cpp.

Member Data Documentation

◆ m_childConvexShape

btConvexShape* btUniformScalingShape::m_childConvexShape

private

Definition at line 27 of file btUniformScalingShape.h.

◆ m_uniformScalingFactor

btScalar btUniformScalingShape::m_uniformScalingFactor

private

Definition at line 29 of file btUniformScalingShape.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

◆ btUniformScalingShape()

◆ ~btUniformScalingShape()

Member Function Documentation

◆ batchedUnitVectorGetSupportingVertexWithoutMargin()

◆ BT_DECLARE_ALIGNED_ALLOCATOR()

◆ calculateLocalInertia()

◆ getAabb()

◆ getAabbSlow()

◆ getChildShape() [1/2]

◆ getChildShape() [2/2]

◆ getLocalScaling()

◆ getMargin()

◆ getName()

◆ getNumPreferredPenetrationDirections()

◆ getPreferredPenetrationDirection()

◆ getUniformScalingFactor()

◆ localGetSupportingVertex()

◆ localGetSupportingVertexWithoutMargin()

◆ setLocalScaling()

◆ setMargin()

Member Data Documentation

◆ m_childConvexShape

◆ m_uniformScalingFactor