vue3 echarts 日历热力图

以下是使用Vue3和Echarts实现日历热力图的步骤：

1. 安装Echarts和Vue-Echarts

npm install echarts vue-echarts@5.0.0-beta.5

2. 在Vue组件中引入Echarts

<template>
  <div class="calendar"></div>
</template>

<script>
import * as echarts from 'echarts';
import { use } from 'echarts/core';
import { CalendarChart } from 'echarts/charts';
import { CanvasRenderer } from 'echarts/renderers';

use([CalendarChart, CanvasRenderer]);

export default {
  mounted() {
    const chartDom = this.$el;
    const myChart = echarts.init(chartDom);
    const option = {
      // 配置项
    };
    myChart.setOption(option);
  },
};
</script>

3. 配置Echarts的日历热力图

<template>
  <div class="calendar"></div>
</template>

<script>
import * as echarts from 'echarts';
import { use } from 'echarts/core';
import { CalendarChart } from 'echarts/charts';
import { CanvasRenderer } from 'echarts/renderers';

use([CalendarChart, CanvasRenderer]);

export default {
  mounted() {
    const chartDom = this.$el;
    const myChart = echarts.init(chartDom);
    const option = {
      tooltip: {
        formatter: (params) => {
          return `${params.value[0]}<br>${params.value[1]}: ${params.value[2]}`;
        },
      },      visualMap: {
        min: 0,
        max: 100,
        type: 'piecewise',
        orient: 'horizontal',
        left: 'center',
        bottom: '5%',
        inRange: {
          color: ['#ebedf0', '#c6e48b', '#7bc96f', '#239a3b', '#196127'],
        },
        pieces: [
          { min: 80, label: '>=80', color: '#196127' },
          { min: 60, max: 79, label: '60-79', color: '#239a3b' },
          { min: 40, max: 59, label: '40-59', color: '#7bc96f' },
          { min: 20, max: 39, label: '20-39', color: '#c6e48b' },
          { min: 0, max: 19, label: '0-19', color: '#ebedf0' },
        ],
      },
      calendar: {
        range: ['2022-01-01', '2022-12-31'],
        cellSize: ['auto', 13],
        top: 'middle',
        left: 'center',
        right: null,
        bottom: null,
        orient: 'vertical',
        splitLine: {
          show: true,
          lineStyle: {
            color: '#000',
            width: 0.5,
            type: 'solid',
          },
        },
        itemStyle: {
          color: '#fff',
          borderWidth: 0.5,
          borderColor: '#000',
        },
        yearLabel: {
          show: false,
        },
      },
      series: [
        {
          type: 'heatmap',
          coordinateSystem: 'calendar',
          data: [
            ['2022-01-01', 10],
            ['2022-01-02', 20],
            // ...
            ['2022-12-31', 90],
          ],
        },
      ],
    };
    myChart.setOption(option);
  },
};
</script>

4. 在Vue组件中使用日历热力图

<template>
  <div>
    <CalendarHeatmap />
  </div>
</template>

<script>
import CalendarHeatmap from './CalendarHeatmap.vue';

export default {
  components: {
    CalendarHeatmap,
  },
};
</script>