Box2D: b2DistanceJointDef Struct Reference

| Box2D 2.4.1 A 2D physics engine for games

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Public Member Functions | Public Attributes | List of all members
b2DistanceJointDef Struct Reference

`#include <b2_distance_joint.h>`

Inheritance diagram for b2DistanceJointDef:

## Public Member Functions
void | Initialize (b2Body *bodyA, b2Body *bodyB, const b2Vec2 &anchorA, const b2Vec2 &anchorB)

## Public Attributes
b2Vec2 | localAnchorA
| The local anchor point relative to bodyA's origin.
b2Vec2 | localAnchorB
| The local anchor point relative to bodyB's origin.
float | length
| The rest length of this joint. Clamped to a stable minimum value.
float | minLength
| Minimum length. Clamped to a stable minimum value.
float | maxLength
| Maximum length. Must be greater than or equal to the minimum length.
float | stiffness
| The linear stiffness in N/m.
float | damping
| The linear damping in N*s/m.
Public Attributes inherited from b2JointDef
b2JointType | type
| The joint type is set automatically for concrete joint types.
b2JointUserData | userData
| Use this to attach application specific data to your joints.
b2Body * | bodyA
| The first attached body.
b2Body * | bodyB
| The second attached body.
bool | collideConnected
| Set this flag to true if the attached bodies should collide.

## Detailed Description

Distance joint definition. This requires defining an anchor point on both bodies and the non-zero distance of the distance joint. The definition uses local anchor points so that the initial configuration can violate the constraint slightly. This helps when saving and loading a game.

## Member Function Documentation

## ◆ Initialize()

void b2DistanceJointDef::Initialize | ( | b2Body * | bodyA,
|  | b2Body * | bodyB,
|  | const b2Vec2 & | anchorA,
|  | const b2Vec2 & | anchorB )

Initialize the bodies, anchors, and rest length using world space anchors. The minimum and maximum lengths are set to the rest length.

The documentation for this struct was generated from the following file:

- /build/box2d/src/box2d-2.4.2/include/box2d/b2_distance_joint.h