# Interface: PulleyJointDef

Pulley joint definition. This requires two ground anchors, two dynamic body
anchor points, and a pulley ratio.

## Extends

- [`JointDef`](/api/interfaces/JointDef).[`PulleyJointOpt`](/api/interfaces/PulleyJointOpt)

## Properties

### bodyA

> **bodyA**: [`Body`](/api/classes/Body)

The first attached body.

#### Inherited from

[`JointDef`](/api/interfaces/JointDef).[`bodyA`](/api/interfaces/JointDef#bodya)

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### bodyB

> **bodyB**: [`Body`](/api/classes/Body)

The second attached body.

#### Inherited from

[`JointDef`](/api/interfaces/JointDef).[`bodyB`](/api/interfaces/JointDef#bodyb)

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### collideConnected?

> `optional` **collideConnected**: `boolean`

Set this flag to true if the attached bodies
should collide.

#### Inherited from

[`PulleyJointOpt`](/api/interfaces/PulleyJointOpt).[`collideConnected`](/api/interfaces/PulleyJointOpt#collideconnected)

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### groundAnchorA

> **groundAnchorA**: [`Vec2Value`](/api/interfaces/Vec2Value)

The first ground anchor in world coordinates. This point never moves.

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### groundAnchorB

> **groundAnchorB**: [`Vec2Value`](/api/interfaces/Vec2Value)

The second ground anchor in world coordinates. This point never moves.

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### lengthA

> **lengthA**: `number`

The reference length for the segment attached to bodyA.

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### lengthB

> **lengthB**: `number`

The reference length for the segment attached to bodyB.

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### localAnchorA

> **localAnchorA**: [`Vec2Value`](/api/interfaces/Vec2Value)

The local anchor point relative to bodyA's origin.

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### localAnchorB

> **localAnchorB**: [`Vec2Value`](/api/interfaces/Vec2Value)

The local anchor point relative to bodyB's origin.

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### ratio

> **ratio**: `number`

The pulley ratio, used to simulate a block-and-tackle.

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### style?

> `optional` **style**: [`Style`](/api/interfaces/Style)

Styling for dev-tools.

#### Inherited from

[`PulleyJointOpt`](/api/interfaces/PulleyJointOpt).[`style`](/api/interfaces/PulleyJointOpt#style)

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### userData?

> `optional` **userData**: `any`

Use this to attach application specific data to your joints.

#### Inherited from

[`PulleyJointOpt`](/api/interfaces/PulleyJointOpt).[`userData`](/api/interfaces/PulleyJointOpt#userdata)