from | 测量角度差的源向量。 |
to | 测量角度差的目标向量。 |
返回 from
与 to
之间的无符号角度(以度为单位)。
返回的角度为两个向量之间的无符号锐角。也就是说,使用两个向量之间的两个可能角度中的较小者。结果永远不会超过 180 度。
另请参阅:SignedAngle 函数。
using UnityEngine;
public class Vector2Angle : MonoBehaviour { //Use these to get the GameObject's positions Vector2 m_MyFirstVector; Vector2 m_MySecondVector;
float m_Angle;
//You must assign to these two GameObjects in the Inspector public GameObject m_MyObject; public GameObject m_MyOtherObject;
void Start() { //Initialise the Vector m_MyFirstVector = Vector2.zero; m_Angle = 0.0f; }
void Update() { //Fetch the first GameObject's position m_MyFirstVector = m_MyObject.transform.position; //Fetch the second GameObject's position m_MySecondVector = m_MyOtherObject.transform.position; //Find the angle for the two Vectors m_Angle = Vector2.Angle(m_MyFirstVector, m_MySecondVector); }
void OnGUI() { //Output the angle found above GUI.Label(new Rect(25, 25, 200, 40), "Angle Between Objects" + m_Angle); } }
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.