增加双坐标轴支持

Scripts/UI/Internal/AxisTick.cs

@@ -0,0 +1,34 @@
+
+using UnityEngine;
+
+namespace XCharts
+{
+    [System.Serializable]
+    public class AxisTick
+    {
+        [SerializeField] private bool m_Show;
+        [SerializeField] private bool m_AlignWithLabel;
+        [SerializeField] private bool m_Inside;
+        [SerializeField] private float m_Length;
+
+        public bool show { get { return m_Show; } set { m_Show = value; } }
+        public bool alignWithLabel { get { return m_AlignWithLabel; } set { m_AlignWithLabel = value; } }
+        public bool inside { get { return m_Inside; } set { m_Inside = value; } }
+        public float length { get { return m_Length; } set { m_Length = value; } }
+
+        public static AxisTick defaultTick
+        {
+            get
+            {
+                var tick = new AxisTick
+                {
+                    m_Show = true,
+                    m_AlignWithLabel = false,
+                    m_Inside = false,
+                    m_Length = 5f
+                };
+                return tick;
+            }
+        }
+    }
+}