Public Member Functions | Protected Member Functions | Protected Attributes | Friends
b2DistanceJoint Class Reference

#include <b2DistanceJoint.h>

Inheritance diagram for b2DistanceJoint:
Inheritance graph
[legend]

List of all members.

Public Member Functions

void Dump ()
 Dump joint to dmLog.
b2Vec2 GetAnchorA () const
 Get the anchor point on bodyA in world coordinates.
b2Vec2 GetAnchorB () const
 Get the anchor point on bodyB in world coordinates.
float32 GetDampingRatio () const
float32 GetFrequency () const
float32 GetLength () const
const b2Vec2GetLocalAnchorA () const
 The local anchor point relative to bodyA's origin.
const b2Vec2GetLocalAnchorB () const
 The local anchor point relative to bodyB's origin.
b2Vec2 GetReactionForce (float32 inv_dt) const
float32 GetReactionTorque (float32 inv_dt) const
void SetDampingRatio (float32 ratio)
 Set/get damping ratio.
void SetFrequency (float32 hz)
 Set/get frequency in Hz.
void SetLength (float32 length)

Protected Member Functions

 b2DistanceJoint (const b2DistanceJointDef *data)
void InitVelocityConstraints (const b2SolverData &data)
bool SolvePositionConstraints (const b2SolverData &data)
void SolveVelocityConstraints (const b2SolverData &data)

Protected Attributes

float32 m_bias
float32 m_dampingRatio
float32 m_frequencyHz
float32 m_gamma
float32 m_impulse
int32 m_indexA
int32 m_indexB
float32 m_invIA
float32 m_invIB
float32 m_invMassA
float32 m_invMassB
float32 m_length
b2Vec2 m_localAnchorA
b2Vec2 m_localAnchorB
b2Vec2 m_localCenterA
b2Vec2 m_localCenterB
float32 m_mass
b2Vec2 m_rA
b2Vec2 m_rB
b2Vec2 m_u

Friends

class b2Joint

Detailed Description

A distance joint constrains two points on two bodies to remain at a fixed distance from each other. You can view this as a massless, rigid rod.

Definition at line 67 of file b2DistanceJoint.h.


Constructor & Destructor Documentation

Definition at line 49 of file b2DistanceJoint.cpp.


Member Function Documentation

void b2DistanceJoint::Dump ( ) [virtual]

Dump joint to dmLog.

Reimplemented from b2Joint.

Definition at line 245 of file b2DistanceJoint.cpp.

b2Vec2 b2DistanceJoint::GetAnchorA ( ) const [virtual]

Get the anchor point on bodyA in world coordinates.

Implements b2Joint.

Definition at line 223 of file b2DistanceJoint.cpp.

b2Vec2 b2DistanceJoint::GetAnchorB ( ) const [virtual]

Get the anchor point on bodyB in world coordinates.

Implements b2Joint.

Definition at line 228 of file b2DistanceJoint.cpp.

Definition at line 164 of file b2DistanceJoint.h.

Definition at line 154 of file b2DistanceJoint.h.

float32 b2DistanceJoint::GetLength ( ) const [inline]

Definition at line 144 of file b2DistanceJoint.h.

const b2Vec2& b2DistanceJoint::GetLocalAnchorA ( ) const [inline]

The local anchor point relative to bodyA's origin.

Definition at line 83 of file b2DistanceJoint.h.

const b2Vec2& b2DistanceJoint::GetLocalAnchorB ( ) const [inline]

The local anchor point relative to bodyB's origin.

Definition at line 86 of file b2DistanceJoint.h.

b2Vec2 b2DistanceJoint::GetReactionForce ( float32  inv_dt) const [virtual]

Get the reaction force given the inverse time step. Unit is N.

Implements b2Joint.

Definition at line 233 of file b2DistanceJoint.cpp.

float32 b2DistanceJoint::GetReactionTorque ( float32  inv_dt) const [virtual]

Get the reaction torque given the inverse time step. Unit is N*m. This is always zero for a distance joint.

Implements b2Joint.

Definition at line 239 of file b2DistanceJoint.cpp.

void b2DistanceJoint::InitVelocityConstraints ( const b2SolverData data) [protected, virtual]

Implements b2Joint.

Definition at line 62 of file b2DistanceJoint.cpp.

void b2DistanceJoint::SetDampingRatio ( float32  ratio) [inline]

Set/get damping ratio.

Definition at line 159 of file b2DistanceJoint.h.

void b2DistanceJoint::SetFrequency ( float32  hz) [inline]

Set/get frequency in Hz.

Definition at line 149 of file b2DistanceJoint.h.

void b2DistanceJoint::SetLength ( float32  length) [inline]

Set/get the natural length. Manipulating the length can lead to non-physical behavior when the frequency is zero.

Definition at line 139 of file b2DistanceJoint.h.

bool b2DistanceJoint::SolvePositionConstraints ( const b2SolverData data) [protected, virtual]

Implements b2Joint.

Definition at line 184 of file b2DistanceJoint.cpp.

void b2DistanceJoint::SolveVelocityConstraints ( const b2SolverData data) [protected, virtual]

Implements b2Joint.

Definition at line 157 of file b2DistanceJoint.cpp.


Friends And Related Function Documentation

friend class b2Joint [friend]

Definition at line 106 of file b2DistanceJoint.h.


Member Data Documentation

Definition at line 115 of file b2DistanceJoint.h.

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Definition at line 127 of file b2DistanceJoint.h.


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


mvsim
Author(s):
autogenerated on Thu Jun 6 2019 22:08:35