diff --git a/Editor/RingChartEditor.cs b/Editor/RingChartEditor.cs
new file mode 100644
index 00000000..f480e370
--- /dev/null
+++ b/Editor/RingChartEditor.cs
@@ -0,0 +1,28 @@
+/******************************************/
+/*                                        */
+/*     Copyright (c) 2018 monitor1394     */
+/*     https://github.com/monitor1394     */
+/*                                        */
+/******************************************/
+
+using UnityEditor;
+
+namespace XCharts
+{
+    /// <summary>
+    /// Editor class used to edit UI RingChart.
+    /// </summary>
+
+    [CustomEditor(typeof(RingChart), false)]
+    public class RingChartEditor : BaseChartEditor
+    {
+        protected SerializedProperty m_Radar;
+        protected SerializedProperty m_Radars;
+
+        protected override void OnEnable()
+        {
+            base.OnEnable();
+            m_Target = (RingChart)target;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Editor/RingChartEditor.cs.meta b/Editor/RingChartEditor.cs.meta
new file mode 100644
index 00000000..8f4abfc9
--- /dev/null
+++ b/Editor/RingChartEditor.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: f61a72b23edc44f48884d4989b04c509
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Runtime/GaugeChart.cs b/Runtime/GaugeChart.cs
index beed6897..1593313c 100644
--- a/Runtime/GaugeChart.cs
+++ b/Runtime/GaugeChart.cs
@@ -93,6 +93,7 @@ namespace XCharts
 
                 var serieLabel = serie.gaugeAxis.axisLabel;
                 serie.gaugeAxis.ClearLabelObject();
+                serie.UpdateCenter(chartWidth, chartHeight);
                 var count = serie.splitNumber > 36 ? 36 : (serie.splitNumber + 1);
                 var startAngle = serie.startAngle;
                 for (int j = 0; j < count; j++)
@@ -146,7 +147,6 @@ namespace XCharts
             DrawPointer(vh, serie, currAngle);
             TitleStyleHelper.CheckTitle(serie, ref m_ReinitTitle, ref m_UpdateTitleText);
             SerieLabelHelper.CheckLabel(serie, ref m_ReinitLabel, ref m_UpdateLabelText);
-
             CheckAnimation(serie);
             if (!serie.animation.IsFinish())
             {
diff --git a/Runtime/Internal/BaseChart.cs b/Runtime/Internal/BaseChart.cs
index 8d859338..13536d61 100644
--- a/Runtime/Internal/BaseChart.cs
+++ b/Runtime/Internal/BaseChart.cs
@@ -370,6 +370,7 @@ namespace XCharts
             for (int i = 0; i < m_Series.Count; i++)
             {
                 var serie = m_Series.list[i];
+                serie.UpdateCenter(chartWidth, chartHeight);
                 for (int j = 0; j < serie.data.Count; j++)
                 {
                     var serieData = serie.data[j];
diff --git a/Runtime/RingChart.cs b/Runtime/RingChart.cs
index 9e00cb2d..ca5b7408 100644
--- a/Runtime/RingChart.cs
+++ b/Runtime/RingChart.cs
@@ -182,6 +182,7 @@ namespace XCharts
                     serieData.labelPosition = serie.runtimeCenterPos + new Vector3(px2, py2);
                     break;
             }
+            serieData.SetLabelPosition(serieData.labelPosition);
         }
 
         private void DrawBackground(VertexHelper vh, Serie serie, SerieData serieData, int index, float insideRadius, float outsideRadius)