优化坐标绘制，支持大数据

2026-05-23 17:30:10 +00:00 · 2019-03-31 09:11:35 +08:00
parent 49dfd59ff3
commit f9dd56fdc5
15 changed files with 29676 additions and 118 deletions
--- a/Demo/BarChartDemo.cs
+++ b/Demo/BarChartDemo.cs
@@ -0,0 +1,86 @@
+using System;
+using UnityEngine;
+using UnityEngine.UI;
+using xcharts;
+
+public class BarChartDemo : MonoBehaviour
+{
+    public Theme theme = Theme.Dark;
+
+    private float time;
+    private int count;
+    private Theme checkTheme = Theme.Dark;
+
+    private int dataCount = 0;
+    private BarChart bigdataChart;
+
+
+    void Awake()
+    {
+        var xchart = transform.Find("xchart");
+        GridLayoutGroup grid = xchart.GetComponent<GridLayoutGroup>();
+        RectTransform rect = transform.GetComponent<RectTransform>();
+        var wid = rect.sizeDelta.x;
+        int childNum = xchart.childCount;
+        float hig = grid.padding.top + childNum * (grid.cellSize.y + grid.spacing.y);
+        rect.sizeDelta = new Vector2(wid, hig);
+        xchart.GetComponent<RectTransform>().sizeDelta = new Vector2(wid, hig);
+
+        bigdataChart = xchart.Find("barchart_bigdata").GetComponent<BarChart>();
+        GenerateData(2000, bigdataChart);
+    }
+
+    void Update()
+    {
+        time += Time.deltaTime;
+        if (time >= 0)
+        {
+            time = 0;
+            //count++;
+            //bigdataChart.AddData(0, Random.Range(30, 120));
+            //bigdataChart.AddXAxisCategory(count.ToString());
+            //bigdataChart.InitXScale();
+            //bigdataChart.RefreshChart();
+        }
+        if (checkTheme != theme)
+        {
+            checkTheme = theme;
+            UpdateTheme(theme);
+        }
+    }
+
+    void UpdateTheme(Theme theme)
+    {
+        var charts = transform.Find("xchart").GetComponentsInChildren<BaseChart>();
+        foreach (var chart in charts)
+        {
+            chart.UpdateTheme(theme);
+        }
+    }
+
+    void GenerateData(int count,BarChart chart)
+    {
+        var baseValue = UnityEngine.Random.Range(0,1000);
+        var time = new DateTime(2011, 1, 1);
+        var smallBaseValue = 0;
+
+        for (var i = 0; i < count; i++)
+        {
+            chart.AddXAxisCategory(time.ToString("yyyy-MM-dd hh:mm:ss"));
+
+            smallBaseValue = i % 30 == 0
+                ? UnityEngine.Random.Range(0, 700)
+                : (smallBaseValue + UnityEngine.Random.Range(0, 500) - 250);
+            baseValue += UnityEngine.Random.Range(0, 20) - 10;
+            //float value = Mathf.Max(
+            //    0,
+            //    Mathf.Round(baseValue + smallBaseValue) + 3000
+            //);
+            var index = i % 100;
+            var value = (Mathf.Sin(index / 5) * (index / 5 - 10) + index / 6) * 5;
+            value = Mathf.Abs(value);
+            chart.AddData(0, value);
+            time = time.AddSeconds(1);
+        }
+    }
+}