Version: 2017.3

Transform.InverseTransformPoint

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public Vector3 InverseTransformPoint (Vector3 position);

描述

position 从世界空间变换到本地空间。

该函数基本上与 Transform.TransformPoint 相反,后者用于从本地空间转换到世界空间。

注意,返回的位置受缩放影响。如果要处理方向矢量而不是位置,请使用 Transform.InverseTransformDirection

// Calculate the transform's position relative to the camera.
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { public Transform cam; public Vector3 cameraRelative;

void Start() { cam = Camera.main.transform; Vector3 cameraRelative = cam.InverseTransformPoint(transform.position);

if (cameraRelative.z > 0) print("The object is in front of the camera"); else print("The object is behind the camera"); } }

public Vector3 InverseTransformPoint (float x, float y, float z);

描述

将位置 zzz 从世界空间变换到本地空间。与 Transform.TransformPoint 相反。

注意,返回的位置受缩放影响。如果要处理方向,请使用 Transform.InverseTransformDirection

// Calculate the world origin relative to this transform.
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Start() { Vector3 relativePoint = transform.InverseTransformPoint(0, 0, 0);

if (relativePoint.z > 0) print("The world origin is in front of this object"); else print("The world origin is behind of this object"); } }