XCharts/Runtime/Chart/HeatmapChart.cs

using System.Collections.Generic;
using UnityEngine;

namespace XCharts
{
    [AddComponentMenu("XCharts/HeatmapChart", 18)]
    [ExecuteInEditMode]
    [RequireComponent(typeof(RectTransform))]
    [DisallowMultipleComponent]
    public class HeatmapChart : BaseChart
    {
#if UNITY_EDITOR
        protected override void Reset()
        {
            base.Reset();

            var tooltip = GetChartComponent<Tooltip>();
            tooltip.type = Tooltip.Type.None;
            tooltip.trigger = Tooltip.Trigger.Axis;

            var grid = GetOrAddChartComponent<GridCoord>();
            grid.left = 0.12f;

            var xAxis = GetOrAddChartComponent<XAxis>();
            xAxis.type = Axis.AxisType.Category;
            xAxis.boundaryGap = true;
            xAxis.splitNumber = 10;

            var yAxis = GetOrAddChartComponent<YAxis>();
            yAxis.type = Axis.AxisType.Category;
            yAxis.boundaryGap = true;
            yAxis.splitNumber = 10;
            RemoveData();

            var heatmapGridWid = 10f;
            int xSplitNumber = (int)(grid.context.width / heatmapGridWid);
            int ySplitNumber = (int)(grid.context.height / heatmapGridWid);

            Heatmap.AddDefaultSerie(this, GenerateDefaultSerieName());

            var visualMap = GetOrAddChartComponent<VisualMap>();
            visualMap.max = 10;
            visualMap.range[0] = 0f;
            visualMap.range[1] = 10f;
            visualMap.orient = Orient.Vertical;
            visualMap.calculable = true;
            visualMap.location.align = Location.Align.BottomLeft;
            visualMap.location.bottom = 100;
            visualMap.location.left = 30;
            var colors = new List<string>{"#313695", "#4575b4", "#74add1", "#abd9e9", "#e0f3f8", "#ffffbf",
                "#fee090", "#fdae61", "#f46d43", "#d73027", "#a50026"};
            visualMap.inRange.Clear();
            foreach (var str in colors)
            {
                visualMap.inRange.Add(ThemeStyle.GetColor(str));
            }
            for (int i = 0; i < xSplitNumber; i++)
            {
                xAxis.data.Add((i + 1).ToString());
            }
            for (int i = 0; i < ySplitNumber; i++)
            {
                yAxis.data.Add((i + 1).ToString());
            }
            for (int i = 0; i < xSplitNumber; i++)
            {
                for (int j = 0; j < ySplitNumber; j++)
                {
                    var value = 0f;
                    var rate = Random.Range(0, 101);
                    if (rate > 70) value = Random.Range(8f, 10f);
                    else value = Random.Range(1f, 8f);
                    var list = new List<double> { i, j, value };
                    AddData(0, list);
                }
            }
        }
#endif
    }
}