LiRuochen_WorkFlow/UIGraphRenderer
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虽然不对，但是起码计算思路是对的

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lrss3
2026-02-25 00:13:08 +08:00
parent b452ba073d
commit c4dfa3301e
2 changed files with 45 additions and 15 deletions
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Runtime/UILineRenderer.cs
+6 -1
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@@ -29,6 +29,8 @@ namespace XericLibrary
/// </summary>
public bool center = true;
public float a = 1;
/// <summary>
/// 重写 MaskableGraphic 的方法，用于生成线条的网格
/// 当 UI 需要重建时会自动调用此方法
@@ -52,7 +54,10 @@ namespace XericLibrary
{
// 使用静态工具方法创建当前点与下一个点之间的线段
// 传递当前累积长度和总长度用于UV坐标计算
UILineRendererUtils.CreateLineSegment(points[i], points[i+1], thickness, center, rectTransform.sizeDelta, color, vh, currentLength, totalLength);
UILineRendererUtils.CreateLineSegment(points[i], points[i+1],
i > 0 ? Mathf.Acos(Vector2.Dot((points[i -1] - points[i]).normalized, (points[i + 1] - points[i]).normalized)) : 0,
i < points.Length-2 ? Mathf.Acos(Vector2.Dot((points[i + 1] - points[i]).normalized, (points[i + 1] - points[i +2]).normalized)) : 0,
thickness, center, rectTransform.sizeDelta, color, vh, currentLength, totalLength);
// 更新累积长度
currentLength += Vector2.Distance(points[i], points[i+1]);
Runtime/UILineRendererUtils.cs
+39 -14
View File
@@ -1,5 +1,6 @@
using UnityEngine;
using UnityEngine.UI;
using XericLibrary.Runtime.MacroLibrary;
namespace XericLibrary
{
@@ -35,6 +36,8 @@ namespace XericLibrary
/// </summary>
/// <param name="point1">线段的起点</param>
/// <param name="point2">线段的终点</param>
/// <param name="angle0">起点到终点与终点到下一点</param>
/// <param name="angle3">起点到终点与终点到下一点</param>
/// <param name="thickness">线条的厚度</param>
/// <param name="center">是否居中显示</param>
/// <param name="rectSize">矩形变换的尺寸</param>
@@ -42,49 +45,71 @@ namespace XericLibrary
/// <param name="vh">用于添加顶点的 VertexHelper 对象</param>
/// <param name="currentLength">当前线段起点在线路中的累积长度</param>
/// <param name="totalLength">线路的总长度</param>
public static void CreateLineSegment(Vector3 point1, Vector3 point2, float thickness, bool center, Vector2 rectSize, Color color, VertexHelper vh, float currentLength, float totalLength)
public static void CreateLineSegment(Vector2 point1, Vector2 point2, float angle0, float angle3, float thickness, bool center, Vector2 rectSize, Color color, VertexHelper vh, float currentLength, float totalLength)
{
// 计算偏移量：如果需要居中显示，则偏移到组件中心
Vector3 offset = center ? (rectSize / 2) : Vector2.zero;
Vector2 offset = center ? (rectSize / 2) : Vector2.zero;
// 创建顶点模板，设置颜色为组件的当前颜色
UIVertex vertex = UIVertex.simpleVert;
vertex.color = color;
var vector = point2 - point1;
var vectorDistance = vector.magnitude;
// 距离过小时不绘制
if (vectorDistance <= float.Epsilon)
return;
// 线段的法线和副法线
var vectorNormal = vector / vectorDistance;
var vectorSubtangent = Vector2.Perpendicular(vectorNormal);
// 计算线段长度
float segmentLength = Vector2.Distance(point1, point2);
// 线段单侧宽度
var width = thickness / 2;
//顶点偏移量
var pointOffset1 = angle0 == 0 ? 0 : width / Mathf.Sin(angle0 / 2);
var pointOffset2 = angle3 == 0 ? 0 : width / Mathf.Sin(angle3 / 2);
Debug.Log($"{pointOffset1} , {pointOffset2}");
// 计算起点和终点的UV坐标Y值
float startUVY = totalLength > 0 ? currentLength / totalLength : 0f;
float endUVY = totalLength > 0 ? (currentLength + segmentLength) / totalLength : 0f;
// 计算起点的旋转角度，使线条垂直于线段方向
Quaternion point1Rotation = Quaternion.Euler(0, 0, RotatePointTowards(point1, point2) + 90);
// Quaternion point1Rotation = Quaternion.Euler(0, 0, RotatePointTowards(point1, point2) + 90);
// 添加起点的左侧顶点
vertex.position = point1Rotation * new Vector3(-thickness / 2, 0);
vertex.position += point1 - offset;
// vertex.position = point1Rotation * new Vector3(-thickness / 2, 0);
vertex.position = (Vector3)(point1 +
vectorSubtangent * -width +
vectorNormal * pointOffset1) - (Vector3)offset;
vertex.uv0 = new Vector2(0f, startUVY); // 左侧顶点的UV
vh.AddVert(vertex);
// 添加起点的右侧顶点
vertex.position = point1Rotation * new Vector3(thickness / 2, 0);
vertex.position += point1 - offset;
// vertex.position = point1Rotation * new Vector3(thickness / 2, 0);
vertex.position = (Vector3)(point1 +
vectorSubtangent * width +
vectorNormal * pointOffset1) - (Vector3)offset;
vertex.uv0 = new Vector2(1f, startUVY); // 右侧顶点的UV
vh.AddVert(vertex);
// 计算终点的旋转角度，使线条垂直于线段方向
Quaternion point2Rotation = Quaternion.Euler(0, 0, RotatePointTowards(point2, point1) - 90);
//Quaternion point2Rotation = Quaternion.Euler(0, 0, RotatePointTowards(point2, point1) - 90);
// 添加终点的左侧顶点
vertex.position = point2Rotation * new Vector3(-thickness / 2, 0);
vertex.position += point2 - offset;
//vertex.position = point2Rotation * new Vector3(-thickness / 2, 0);
vertex.position = (Vector3)(point2 +
vectorSubtangent * -width +
vectorNormal * pointOffset2) - (Vector3)offset;
vertex.uv0 = new Vector2(0f, endUVY); // 左侧顶点的UV
vh.AddVert(vertex);
// 添加终点的右侧顶点
vertex.position = point2Rotation * new Vector3(thickness / 2, 0);
vertex.position += point2 - offset;
//vertex.position = point2Rotation * new Vector3(thickness / 2, 0);
vertex.position = (Vector3)(point2 +
vectorSubtangent * width +
vectorNormal * pointOffset2) - (Vector3)offset;
vertex.uv0 = new Vector2(1f, endUVY); // 右侧顶点的UV
vh.AddVert(vertex);