[feature][axis] support Settings.axisMaxSplitNumber

CHANGELOG.md

@@ -56,6 +56,7 @@
 
 ## master
 
+* (2022.07.04) 增加`Settings`的`axisMaxSplitNumber`参数设置`Axis`的最大分隔段数
 * (2022.07.04) 修复`Axis`在设置`offset`后`Tick`绘制位置异常的问题 (#209)
 * (2022.07.03) 优化`AxisLabel`的`formatterFunction`自定义委托
 * (2022.07.03) 增加`AxisName`的`onZero`参数支持设置坐标轴名称位置是否和Y轴0刻度一致 (#207)

Editor/ChildComponents/SettingsDrawer.cs

@@ -28,6 +28,7 @@ namespace XCharts.Editor
                 PropertyField(prop, "m_LineSmoothness");
                 PropertyField(prop, "m_LineSegmentDistance");
                 PropertyField(prop, "m_CicleSmoothness");
+                PropertyField(prop, "m_AxisMaxSplitNumber");
                 PropertyField(prop, "m_LegendIconLineWidth");
                 PropertyListField(prop, "m_LegendIconCornerRadius", true);
                 --EditorGUI.indentLevel;

Runtime/Component/Axis/AxisHandler.cs

@@ -218,7 +218,7 @@ namespace XCharts
             axis.UpdateLabelText(runtimeWidth, dataZoom, isPercentStack);
         }
 
-        internal static void UpdateAxisTickValueList(Axis axis)
+        internal void UpdateAxisTickValueList(Axis axis)
         {
             if (axis.IsTime())
             {
@@ -267,12 +267,13 @@ namespace XCharts
                     list.Add(axis.context.minValue);
                     value = Math.Ceiling(axis.context.minValue / tick) * tick;
                 }
+                var maxSplitNumber = chart.settings.axisMaxSplitNumber;
                 while (value <= axis.context.maxValue)
                 {
                     list.Add(value);
                     value += tick;
 
-                    if (list.Count > 100)
+                    if (maxSplitNumber > 0 && list.Count > maxSplitNumber)
                         break;
                 }
                 if (!ChartHelper.IsEquals(axis.context.maxValue, list[list.Count - 1]))

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;

Runtime/Coord/Parallel/ParallelCoordHandler.cs

@@ -165,7 +165,7 @@ namespace XCharts.Runtime
                         axis.context.offset = 0;
                         axis.context.lastCheckInverse = axis.inverse;
 
-                        AxisHandler<ParallelAxis>.UpdateAxisTickValueList(axis);
+                        (axis.handler as ParallelAxisHander).UpdateAxisTickValueList(axis);
                         (axis.handler as ParallelAxisHander).UpdateAxisLabelText(axis);
                         chart.RefreshChart();
                     }