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script:unityengine:classes:transform:transform.inversetransformpoint

Transform.InverseTransformPoint 反向变换点

JavaScript ⇒ public function InverseTransformPoint(position: Vector3): Vector3;
C# ⇒public Vector3 InverseTransformPoint(Vector3 position);

Description 描述

Transforms position from world space to local space. The opposite of Transform.TransformPoint.

变换位置从世界坐标到局部坐标。和Transform.TransformPoint相反。

Note that the returned position is affected by scale. Use Transform.InverseTransformDirection if you are dealing with directions.

注意,返回位置受缩放影响。如果你是处理方向使用Transform.InverseTransformDirection

JavaScript:

// Calculate the transform's position relative to the camera.
 
var cam = Camera.main.transform; 
var 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"); 

C#:

using UnityEngine;
using System.Collections;
 
public class ExampleClass : MonoBehaviour {
    public Transform cam = Camera.main.transform;
    public Vector3 cameraRelative = cam.InverseTransformPoint(transform.position);
    void Example() {
        if (cameraRelative.z > 0)
            print("The object is in front of the camera");
        else
            print("The object is behind the camera");
    }
}

JavaScript ⇒public function InverseTransformPoint(x: float, y: float, z: float): Vector3;
C# ⇒public Vector3 InverseTransformPoint(float x, float y, float z);

Description 描述

Transforms the position x, y, z from world space to local space. The opposite of Transform.TransformPoint.

变换位置 x, y, z从世界坐标到局部坐标。和Transform.TransformPoint相反。

Note that the returned position is affected by scale. Use Transform.InverseTransformDirection if you are dealing with directions.

注意,返回位置受缩放影响。如果你是处理方向使用Transform.InverseTransformDirection

JavaScript:

// Calculate the world origin relative to this transform.
 
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"); 

C#:

using UnityEngine;
using System.Collections;
 
public class ExampleClass : MonoBehaviour {
    void Example() {
        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");
    }
}

Transform

script/unityengine/classes/transform/transform.inversetransformpoint.txt · 最后更改: 2016/08/02 05:37 (外部编辑)