增加饼图pie

2026-05-20 15:30:09 +00:00 · 2018-09-23 08:18:26 +08:00
parent 17659b35d5
commit cfb6cdb4b5
8 changed files with 3031 additions and 1229 deletions
--- a/Scripts/PieChart.cs
+++ b/Scripts/PieChart.cs
@@ -0,0 +1,116 @@
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace xcharts
+{
+    [System.Serializable]
+    public class PieData
+    {
+        public string text;
+        public float value;
+    }
+
+    [System.Serializable]
+    public class PieInfo
+    {
+        public float radius = 80f;
+        public float space;
+        public float left;
+        public float right;
+        public float top;
+        public float bottom;
+        public List<PieData> dataList;
+
+        public float GetDataTotal()
+        {
+            float total = 0;
+            foreach(var d in dataList)
+            {
+                total += d.value;
+            }
+            return total;
+        }
+    }
+
+    public class PieChart : BaseChart
+    {
+        [SerializeField]
+        private PieInfo pieInfo;
+
+        private float pieCenterX = 0f;
+        private float pieCenterY = 0f;
+        private float pieRadius = 0;
+
+        protected override void Awake()
+        {
+            base.Awake();
+        }
+
+        protected override void Update()
+        {
+            base.Update();
+        }
+
+        protected override void OnPopulateMesh(VertexHelper vh)
+        {
+            base.OnPopulateMesh(vh);
+            UpdatePieCenter();
+            float totalDegree = 360;
+            float startDegree = 0;
+            float dataTotal = GetDataTotal();
+            for (int i = 0; i < pieInfo.dataList.Count; i++)
+            {
+                if (!legend.IsShowSeries(i)) continue;
+                float value = pieInfo.dataList[i].value;
+                float degree = totalDegree * value / dataTotal;
+                float toDegree = startDegree + degree;
+                ChartUtils.DrawSector(vh, new Vector3(pieCenterX, pieCenterY), pieRadius, legend.GetColor(i), 360, 
+                    startDegree, toDegree);
+                startDegree = toDegree;
+            }
+        }
+
+        protected override void OnLegendButtonClicked()
+        {
+            base.OnLegendButtonClicked();
+
+        }
+
+        private float GetDataTotal()
+        {
+            float total = 0;
+            for(int i = 0; i < pieInfo.dataList.Count; i++)
+            {
+                if (legend.IsShowSeries(i))
+                {
+                    total += pieInfo.dataList[i].value;
+                }
+            }
+            return total;
+        }
+
+        private void UpdatePieCenter()
+        {
+            float diffX = chartWid - pieInfo.left - pieInfo.right;
+            float diffY = chartHig - pieInfo.top - pieInfo.bottom;
+            float diff = Mathf.Min(diffX, diffY);
+            if(pieInfo.radius <= 0)
+            {
+                pieRadius = diff / 3 * 2;
+                pieCenterX = pieInfo.left + pieRadius;
+                pieCenterY = pieInfo.bottom + pieRadius;
+            }
+            else
+            {
+                pieRadius = pieInfo.radius;
+                pieCenterX = chartWid / 2;
+                pieCenterY = chartHig / 2;
+                if (pieInfo.left > 0) pieCenterX = pieInfo.left + pieRadius;
+                if (pieInfo.right > 0) pieCenterX = chartWid - pieInfo.right - pieRadius;
+                if (pieInfo.top > 0) pieCenterY = chartHig - pieInfo.top - pieRadius;
+                if (pieInfo.bottom > 0) pieCenterY = pieInfo.bottom + pieRadius;
+            }
+        }
+    }
+}