Question

Parameters 参数

torque

Value of torque to apply. 要应用的力矩的值。

Description 描述

Apply a torque at the rigidbody's centre of mass.

在该刚体的质心应用一个力矩。

A torque is conceptually a force being applied at the end of an imaginary lever, with the fulcrum at the centre of mass. A torque of five units could thus be equivalent to a force of five units pushing on the end of a lever one unit long, or a force of one unit on a lever five units long. Unity's units are arbitrary but the principle that torque = force x lever length still applies.

力矩是一个被应用在一个假想杠杆末端的概念上的力，支点在质心。五个单位的力矩可以等效于五个单位的力推动杠杆末端一个单位长，或在杠杆五个单位长一个单位的力。Unity的单位是任意的，但力矩=力×杠杆长度原理仍然适用。

Note that unlike a 3D Rigidbody, a Rigidbody2D can only rotate in one axis and so torque is a float value rather than a vector.

注意，不像三维刚体，二维刚体仅在一个轴旋转，扭矩是一个float值而不是一个向量。

See Also: AddForce, AddForceAtPosition, Rigidbody.AddTorque.

Rigidbody2D