修复Unity2020上新创建的图表无法正常绘制的问题

Assets/XCharts/CHANGELOG-EN.md

@@ -1,6 +1,7 @@
 
 # 更新日志
 
+* (2020.12.01) fixed an issue where a newly created chart on `Unity2020` could not be drawn properly
 * (2020.11.22) Release `v1.6.2` version
 * (2020.11.22) Fixed an issue where `LineChart` draws an exception when the data is too dense #99
 * (2020.11.21) Fixed an issue where the scale position of `LineChart` could be abnormal if `alignWithLabel` was `true`

Assets/XCharts/CHANGELOG.md

@@ -1,6 +1,7 @@
 
 # 更新日志
 
+* (2020.12.01) 修复`Unity2020`上新创建的图表无法正常绘制的问题
 * (2020.11.22) 发布`v1.6.2`版本
 * (2020.11.22) 修复`LineChart`在数据过于密集时折线绘制异常的问题 #99
 * (2020.11.21) 修复`LineChart`的刻度位置在`alignWithLabel`为`true`时可能异常的问题

Assets/XCharts/Runtime/Internal/BaseGraph.cs

@@ -12,6 +12,7 @@ using UnityEngine.EventSystems;
 
 namespace XCharts
 {
+    [RequireComponent(typeof(CanvasRenderer))]
     public partial class BaseGraph : MaskableGraphic, IPointerDownHandler, IPointerUpHandler,
         IPointerEnterHandler, IPointerExitHandler, IBeginDragHandler, IPointerClickHandler,
         IDragHandler, IEndDragHandler, IScrollHandler
@@ -213,6 +214,7 @@ namespace XCharts
 
         protected override void OnPopulateMesh(VertexHelper vh)
         {
+            Debug.LogError("baseGraph:OnPopulateMesh");
             vh.Clear();
             DrawBackground(vh);
             DrawGraphic(vh);