将 highcharts 热图中的图例更改为显示而不是颜色条，一组固定图标，单击时隐藏和显示

Question

是否可以拥有与 Apache echarts 相同的功能。请参考以下 JS 片段中的 Apache echarts 示例，其中 type:"piecewise" 给出的图例允许用户在单击时隐藏特定颜色值。我怎样才能在 Highcharts 中得到同样的东西。通常的热图显示条形图例，但我想要您在折线图或条形图中看到的传统图例。谢谢

var chartDom = document.getElementById('main');
var myChart = echarts.init(chartDom);
var option;

// prettier-ignore
const hours = [
    '12a', '1a', '2a', '3a', '4a', '5a', '6a',
    '7a', '8a', '9a', '10a', '11a',
    '12p', '1p', '2p', '3p', '4p', '5p',
    '6p', '7p', '8p', '9p', '10p', '11p'
];
// prettier-ignore
const days = [
    'Saturday', 'Friday', 'Thursday',
    'Wednesday', 'Tuesday', 'Monday', 'Sunday'
];
// prettier-ignore
const data = [[0, 0, 5], [0, 1, 1], [0, 2, 0], [0, 3, 0], [0, 4, 0], [0, 5, 0], [0, 6, 0], [0, 7, 0], [0, 8, 0], [0, 9, 0], [0, 10, 0], [0, 11, 2], [0, 12, 4], [0, 13, 1], [0, 14, 1], [0, 15, 3], [0, 16, 4], [0, 17, 6], [0, 18, 4], [0, 19, 4], [0, 20, 3], [0, 21, 3], [0, 22, 2], [0, 23, 5], [1, 0, 7], [1, 1, 0], [1, 2, 0], [1, 3, 0], [1, 4, 0], [1, 5, 0], [1, 6, 0], [1, 7, 0], [1, 8, 0], [1, 9, 0], [1, 10, 5], [1, 11, 2], [1, 12, 2], [1, 13, 6], [1, 14, 9], [1, 15, 11], [1, 16, 6], [1, 17, 7], [1, 18, 8], [1, 19, 12], [1, 20, 5], [1, 21, 5], [1, 22, 7], [1, 23, 2], [2, 0, 1], [2, 1, 1], [2, 2, 0], [2, 3, 0], [2, 4, 0], [2, 5, 0], [2, 6, 0], [2, 7, 0], [2, 8, 0], [2, 9, 0], [2, 10, 3], [2, 11, 2], [2, 12, 1], [2, 13, 9], [2, 14, 8], [2, 15, 10], [2, 16, 6], [2, 17, 5], [2, 18, 5], [2, 19, 5], [2, 20, 7], [2, 21, 4], [2, 22, 2], [2, 23, 4], [3, 0, 7], [3, 1, 3], [3, 2, 0], [3, 3, 0], [3, 4, 0], [3, 5, 0], [3, 6, 0], [3, 7, 0], [3, 8, 1], [3, 9, 0], [3, 10, 5], [3, 11, 4], [3, 12, 7], [3, 13, 14], [3, 14, 13], [3, 15, 12], [3, 16, 9], [3, 17, 5], [3, 18, 5], [3, 19, 10], [3, 20, 6], [3, 21, 4], [3, 22, 4], [3, 23, 1], [4, 0, 1], [4, 1, 3], [4, 2, 0], [4, 3, 0], [4, 4, 0], [4, 5, 1], [4, 6, 0], [4, 7, 0], [4, 8, 0], [4, 9, 2], [4, 10, 4], [4, 11, 4], [4, 12, 2], [4, 13, 4], [4, 14, 4], [4, 15, 14], [4, 16, 12], [4, 17, 1], [4, 18, 8], [4, 19, 5], [4, 20, 3], [4, 21, 7], [4, 22, 3], [4, 23, 0], [5, 0, 2], [5, 1, 1], [5, 2, 0], [5, 3, 3], [5, 4, 0], [5, 5, 0], [5, 6, 0], [5, 7, 0], [5, 8, 2], [5, 9, 0], [5, 10, 4], [5, 11, 1], [5, 12, 5], [5, 13, 10], [5, 14, 5], [5, 15, 7], [5, 16, 11], [5, 17, 6], [5, 18, 0], [5, 19, 5], [5, 20, 3], [5, 21, 4], [5, 22, 2], [5, 23, 0], [6, 0, 1], [6, 1, 0], [6, 2, 0], [6, 3, 0], [6, 4, 0], [6, 5, 0], [6, 6, 0], [6, 7, 0], [6, 8, 0], [6, 9, 0], [6, 10, 1], [6, 11, 0], [6, 12, 2], [6, 13, 1], [6, 14, 3], [6, 15, 4], [6, 16, 0], [6, 17, 0], [6, 18, 0], [6, 19, 0], [6, 20, 1], [6, 21, 2], [6, 22, 2], [6, 23, 6]]
    .map(function (item) {
    return [item[1], item[0], item[2] || '-'];
});
option = {
  tooltip: {
    position: 'top'
  },
  grid: {
    height: '50%',
    top: '10%'
  },
  xAxis: {
    type: 'category',
    data: hours,
    splitArea: {
      show: true
    }
  },
  yAxis: {
    type: 'category',
    data: days,
    splitArea: {
      show: true
    }
  },
  visualMap: {
    min: 0,
    max: 10,
    calculable: true,
    orient: 'horizontal',
    left: 'center',
    bottom: '15%',
    type: 'piecewise'
  },
  series: [
    {
      name: 'Punch Card',
      type: 'heatmap',
      data: data,
      label: {
        show: true
      },
      emphasis: {
        itemStyle: {
          shadowBlur: 10,
          shadowColor: 'rgba(0, 0, 0, 0.5)'
        }
      }
    }
  ]
};

option && myChart.setOption(option);

<script src="https://cdnjs.cloudflare.com/ajax/libs/echarts/3.7.2/echarts.min.js"></script>
<div id="main" style="width: 600px;height:400px;"></div>

Answer 1

是的，使用 Highcharts 是可能的。您只需要在颜色轴设置中使用数据-类。

  colorAxis: {
    dataClasses: [{
      from: 0,
      to: 50
    }, {
      ...
    }, {
      ...
    }],
    ...
  }

现场演示： https://jsfiddle.net/BlackLabel/vk0t7g6n/

API参考：https://api.highcharts.com/highcharts/colorAxis

文档： https://www.highcharts.com/docs/maps/color-axis

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