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Box2D
2.2.1
A 2D Physics Engine for Games
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#include <b2WeldJoint.h>
Public Member Functions | |
b2Vec2 | GetAnchorA () const |
Get the anchor point on bodyA in world coordinates. | |
b2Vec2 | GetAnchorB () const |
Get the anchor point on bodyB in world coordinates. | |
b2Vec2 | GetReactionForce (float32 inv_dt) const |
Get the reaction force on bodyB at the joint anchor in Newtons. | |
float32 | GetReactionTorque (float32 inv_dt) const |
Get the reaction torque on bodyB in N*m. | |
const b2Vec2 & | GetLocalAnchorA () const |
The local anchor point relative to bodyA's origin. | |
const b2Vec2 & | GetLocalAnchorB () const |
The local anchor point relative to bodyB's origin. | |
float32 | GetReferenceAngle () const |
Get the reference angle. | |
void | SetFrequency (float32 hz) |
Set/get frequency in Hz. | |
float32 | GetFrequency () const |
void | SetDampingRatio (float32 ratio) |
Set/get damping ratio. | |
float32 | GetDampingRatio () const |
void | Dump () |
Dump to b2Log. | |
Protected Member Functions | |
b2WeldJoint (const b2WeldJointDef *def) | |
void | InitVelocityConstraints (const b2SolverData &data) |
void | SolveVelocityConstraints (const b2SolverData &data) |
bool | SolvePositionConstraints (const b2SolverData &data) |
Protected Attributes | |
float32 | m_frequencyHz |
float32 | m_dampingRatio |
float32 | m_bias |
b2Vec2 | m_localAnchorA |
b2Vec2 | m_localAnchorB |
float32 | m_referenceAngle |
float32 | m_gamma |
b2Vec3 | m_impulse |
int32 | m_indexA |
int32 | m_indexB |
b2Vec2 | m_rA |
b2Vec2 | m_rB |
b2Vec2 | m_localCenterA |
b2Vec2 | m_localCenterB |
float32 | m_invMassA |
float32 | m_invMassB |
float32 | m_invIA |
float32 | m_invIB |
b2Mat33 | m_mass |
Friends | |
class | b2Joint |
A weld joint essentially glues two bodies together. A weld joint may distort somewhat because the island constraint solver is approximate.