如何将圆改为水平绘制而不是垂直绘制

Question

using UnityEngine;
using System.Collections;
using System;
[RequireComponent(typeof(LineRenderer))]
public class DrawRadiusAround : MonoBehaviour
{
[Range(1, 50)] public int segments = 50;
[Range(1, 5)] public float xRadius = 5;
[Range(1, 5)] public float yRadius = 5;
[Range(0.1f, 5f)] public float width = 0.1f;
public bool controlBothXradiusYradius = false;
public bool draw = true;
[SerializeField] private LineRenderer line;
private void Start()
{
if (!line) line = GetComponent<LineRenderer>();
CreatePoints();
}
//private void Update()
//{
//    
//}
public void CreatePoints()
{
line.enabled = true;
line.widthMultiplier = width;
line.useWorldSpace = false;
line.widthMultiplier = width;
line.positionCount = segments + 1;
float x;
float y;
var angle = 20f;
var points = new Vector3[segments + 1];
for (int i = 0; i < segments + 1; i++)
{
x = Mathf.Sin(Mathf.Deg2Rad * angle) * xRadius;
y = Mathf.Cos(Mathf.Deg2Rad * angle) * yRadius;
points[i] = new Vector3(x, 0f, y);
angle += (380f / segments);
}
// it's way more efficient to do this in one go!
line.SetPositions(points);
}
#if UNITY_EDITOR
private float prevXRadius, prevYRadius;
private int prevSegments;
private float prevWidth;
private void OnValidate()
{
// Can't set up our line if the user hasn't connected it yet.
if (!line) line = GetComponent<LineRenderer>();
if (!line) return;
if (!draw)
{
// instead simply disable the component
line.enabled = false;
}
else
{
// Otherwise re-enable the component
// This will simply re-use the previously created points
line.enabled = true;
if (xRadius != prevXRadius || yRadius != prevYRadius || segments != prevSegments || width != prevWidth)
{
CreatePoints();
// Cache our most recently used values.
prevXRadius = xRadius;
prevYRadius = yRadius;
prevSegments = segments;
prevWidth = width;
}
if (controlBothXradiusYradius)
{
yRadius = xRadius;
}
}
}
#endif
}

Answer 1

听起来你更想使用例如

points[i] = new Vector3 (x, y, 0f);

---

一般来说，您的LineRenderer已经有

line.useWorldSpace = false;

这意味着你给它的位置在局部空间中使用

=>您所需要做的就是根据实际需要旋转LineRenderer所附着的对象。