THREE.js:计算对象上某个点的世界空间位置 [英] THREE.js: Calculate world space position of a point on an object

问题描述

我有一个 3D 对象.附加"是一个点.当物体移动或旋转时，点也随之移动和旋转.

I have a 3D object. "Attached" to it is a point. When the object is moved or rotated, the point moves and rotates with it.

给定对象的位置和旋转，如何计算该点在世界空间中的位置?(如果可能，使用 THREE.js 的 API)

Given the object's position and rotation, how can the position of the point in world space be calculated? (Using THREE.js's API if possible)

谢谢

推荐答案

对于对象局部坐标系中的点，

For a point in an object's local coordinate system,

object.localToWorld( point );

将返回点的世界坐标，假设对点应用与对对象应用相同的变换.

will return the world coordinates of the point, assuming the same transform is applied to the point as is applied to the object.

three.js r.55

three.js r.55

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