[feature][axis] support Settings.axisMaxSplitNumber

Runtime/Component/Settings/Settings.cs

@@ -23,6 +23,7 @@ namespace XCharts.Runtime
         [SerializeField][Range(1, 10)] protected float m_CicleSmoothness = 2f;
         [SerializeField] protected float m_LegendIconLineWidth = 2;
         [SerializeField] private float[] m_LegendIconCornerRadius = new float[] { 0.25f, 0.25f, 0.25f, 0.25f };
+        [SerializeField][Since("v3.1.0")] protected float m_AxisMaxSplitNumber = 20;
 
         public bool show { get { return m_Show; } }
         /// <summary>
@@ -137,6 +138,16 @@ namespace XCharts.Runtime
             set { if (PropertyUtil.SetClass(ref m_LegendIconCornerRadius, value, true)) SetVerticesDirty(); }
         }
 
+        /// <summary>
+        /// the max splitnumber of axis.
+        /// |坐标轴最大分隔段数。段数过大时可能会生成较多的label节点。
+        /// </summary>
+        public float axisMaxSplitNumber
+        {
+            get { return m_AxisMaxSplitNumber; }
+            set { if (PropertyUtil.SetStruct(ref m_AxisMaxSplitNumber, value)) SetVerticesDirty(); }
+        }
+
         public void Copy(Settings settings)
         {
             m_ReversePainter = settings.reversePainter;