Echarts——如何默认选中图表并显示tooltip

原创

思索

发布于 2024-06-24 23:51:46

1400

发布于 2024-06-24 23:51:46

前言

action: action

event : event

event and action : 参考资料

code : 实现预览地址

内容

很简单借助于dispatchAction来触发事件；

import * as echarts from 'echarts';



var chartDom = document.getElementById('main');

var myChart = echarts.init(chartDom);

var option;



option = {

  tooltip: {

    trigger: 'axis',

    axisPointer: {

      type: 'shadow'

    }

  },

  legend: {},

  grid: {

    left: '3%',

    right: '4%',

    bottom: '3%',

    containLabel: true

  },

  xAxis: [

    {

      type: 'category',

      data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']

    }

  ],

  yAxis: [

    {

      type: 'value'

    }

  ],

  series: [

    {

      name: 'Direct',

      type: 'bar',

      emphasis: {

        focus: 'series'

      },

      data: [320, 332, 301, 334, 390, 330, 320]

    },

    {

      name: 'Email',

      type: 'bar',

      stack: 'Ad',

      emphasis: {

        focus: 'series'

      },

      data: [120, 132, 101, 134, 90, 230, 210]

    },

    {

      name: 'Union Ads',

      type: 'bar',

      stack: 'Ad',

      emphasis: {

        focus: 'series'

      },

      data: [220, 182, 191, 234, 290, 330, 310]

    },

    {

      name: 'Video Ads',

      type: 'bar',

      stack: 'Ad',

      emphasis: {

        focus: 'series'

      },

      data: [150, 232, 201, 154, 190, 330, 410]

    },

    {

      name: 'Search Engine',

      type: 'bar',

      data: [862, 1018, 964, 1026, 1679, 1600, 1570],

      emphasis: {

        focus: 'series'

      },

      markLine: {

        lineStyle: {

          type: 'dashed'

        },

        data: [[{ type: 'min' }, { type: 'max' }]]

      }

    },

    {

      name: 'Baidu',

      type: 'bar',

      barWidth: 5,

      stack: 'Search Engine',

      emphasis: {

        focus: 'series'

      },

      data: [620, 732, 701, 734, 1090, 1130, 1120]

    },

    {

      name: 'Google',

      type: 'bar',

      stack: 'Search Engine',

      emphasis: {

        focus: 'series'

      },

      data: [120, 132, 101, 134, 290, 230, 220]

    },

    {

      name: 'Bing',

      type: 'bar',

      stack: 'Search Engine',

      emphasis: {

        focus: 'series'

      },

      data: [60, 72, 71, 74, 190, 130, 110]

    },

    {

      name: 'Others',

      type: 'bar',

      stack: 'Search Engine',

      emphasis: {

        focus: 'series'

      },

      data: [62, 82, 91, 84, 109, 110, 120]

    }

  ]

};



option && myChart.setOption(option);



setTimeout(function () {

  myChart.dispatchAction({

    type: 'highlight',

    seriesIndex: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],

    dataIndex: 1

  });

  myChart.dispatchAction({

    type: 'showTip',

    seriesIndex: 0,

    dataIndex: 1

  });

}, 1000);