增加ScatterChart散点图

Scripts/UI/Internal/CoordinateChart.cs

@@ -176,7 +176,9 @@ namespace XCharts
                             {
                                 var xdata = serie.xData[n];
                                 var ydata = serie.yData[n];
-                                if (Mathf.Abs(xValue - xdata) / xRate < 5 && Mathf.Abs(yValue - ydata) / yRate < 5)
+                                var symbolSize = serie.symbol.GetSize(serie.data[n].data);
+                                if (Mathf.Abs(xValue - xdata) / xRate < symbolSize
+                                    && Mathf.Abs(yValue - ydata) / yRate < symbolSize)
                                 {
                                     m_Tooltip.dataIndex[i] = n;
                                     serie.selected = true;

Scripts/UI/Internal/Legend.cs

@@ -47,11 +47,7 @@ namespace XCharts
                     m_ItemWidth = 60.0f,
                     m_ItemHeight = 20.0f,
                     m_ItemGap = 5,
-                    m_ItemFontSize = 16,
-                    m_Data = new List<string>()
-                    {
-                        "serie1"
-                    }
+                    m_ItemFontSize = 16
                 };
                 legend.location.top = 30;
                 return legend;

Scripts/UI/Internal/Scatter.cs

@@ -0,0 +1,26 @@
+using UnityEngine;
+
+namespace XCharts
+{
+    [System.Serializable]
+    public class Scatter
+    {
+        [SerializeField] private string m_Name;
+        [SerializeField] private float m_InsideRadius;
+        [SerializeField] private float m_OutsideRadius;
+        [SerializeField] private float m_TooltipExtraRadius;
+
+        public string name { get { return m_Name; } set { m_Name = value; } }
+
+        public static Scatter defaultScatter
+        {
+            get
+            {
+                var scatter = new Scatter
+                {
+                };
+                return scatter;
+            }
+        }
+    }
+}

Scripts/UI/Internal/Scatter.cs.meta

@@ -0,0 +1,11 @@
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