一个按引用传递的数值，标识该四元数的旋转角度(以弧度为单位)。

Angle a number, passed by reference, that identifies the Angle of rotation, in radians, of the quaternion.

youdao

一个按引用传递的数值，标识该四元数的旋转角度(以弧度为单位)。

Angle a number, passed by reference, that identifies the Angle of rotation, in radians, of the quaternion.

youdao