在 Three.js 中，如何翻译一个 Vector3? [英] In Three.js, how to translate a Vector3?

问题描述

我创建了一个名为 ori 的 Vector3()，并填充了它的坐标 x、y 和 z.现在，我该如何平移这个向量，比如沿 z 轴，指定值?

I have created a Vector3() called ori, and I have populated its coordinates x, y and z. How, now, do I translate this vector, say along axis z, of the indicated value?

我试过了:

 ori.translateZ( - 100);

这让我出错(TypeError:无法读取未定义的属性translateZ")

This gets me an error (TypeError: Cannot read property 'translateZ' of undefined)

推荐答案

如果你想通过单轴平移，就像添加平移值一样简单:

If you want to translate by a single axis, it's as simple as adding the translation value:

ori.z += -100;

如果你想用向量翻译，同样很简单:

If you want to translate by a vector, it's again very simple:

var trans = new THREE.Vector3(-100,-200,-300);
ori.add(trans);

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