增加Pie的radiusGradient可设置半径方向的渐变效果

Runtime/Serie/Pie/Pie.cs

@@ -1,3 +1,5 @@
+using UnityEngine;
+
 namespace XCharts.Runtime
 {
     [System.Serializable]
@@ -9,9 +11,21 @@ namespace XCharts.Runtime
     [SerieDataExtraField("m_Ignore", "m_Selected", "m_Radius")]
     public class Pie : Serie
     {
+        [SerializeField][Since("v3.8.1")] private bool m_RadiusGradient = false;
+
         public override SerieColorBy defaultColorBy { get { return SerieColorBy.Data; } }
         public override bool titleJustForSerie { get { return true; } }
 
+        /// <summary>
+        /// Whether to use gradient color in pie chart.
+        /// | 是否开启半径方向的渐变效果。
+        /// </summary>
+        public bool radiusGradient
+        {
+            get { return m_RadiusGradient; }
+            set { if (PropertyUtil.SetStruct(ref m_RadiusGradient, value)) { SetVerticesDirty(); } }
+        }
+
         public static Serie AddDefaultSerie(BaseChart chart, string serieName)
         {
             var serie = chart.AddSerie<Pie>(serieName);

Runtime/Serie/Pie/PieHandler.cs

@@ -333,7 +333,7 @@ namespace XCharts.Runtime
             }
         }
 
-        private void DrawPie(VertexHelper vh, Serie serie)
+        private void DrawPie(VertexHelper vh, Pie serie)
         {
             if (!serie.show || serie.animation.HasFadeOut())
             {
@@ -387,7 +387,7 @@ namespace XCharts.Runtime
                 UGL.DrawDoughnut(vh, offsetCenter, insideRadius,
                     outsideRadius, color, toColor, Color.clear, serieData.context.startAngle,
                     drawEndDegree, borderWidth, borderColor, serie.gap / 2, chart.settings.cicleSmoothness,
-                    needRoundCap, true);
+                    needRoundCap, true, serie.radiusGradient);
                 DrawPieCenter(vh, serie, itemStyle, insideRadius);
 
                 if (serie.animation.CheckDetailBreak(serieData.context.toAngle))