再议Echarts点击事件_mychartmap.setoption(optionmap, true)报表点击事件-优快云博客

本文链接：https://blog.youkuaiyun.com/allenjay11/article/details/80112865

本文提供了一个Echarts饼图的完整示例代码，包括如何为图表添加点击事件以获取被点击部分的数据信息。

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之前写过一篇关于Echarts点击事件的文章，没想到这么多人看，并且给了评论。现在还有人私聊我问题。我先在写一份完整的代码沾到这里吧，毕竟我是写后台的，对前段也就马马虎虎。

下面是我在官网下载的关于饼图的例子，我添加了点击事件

    myChart.on('click', function (params) {

                  console.table(params);

      });

下面是完整代码

<!DOCTYPE html>
<html style="height: 100%">
   <head>
       <meta charset="utf-8">
   </head>
   <body style="height: 80%; margin: 0">
       <div id="container" style="height: 80%"></div>
       <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/echarts.min.js"></script>
       <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts-gl/echarts-gl.min.js"></script>
       <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts-stat/ecStat.min.js"></script>
       <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/extension/dataTool.min.js"></script>
       <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/map/js/china.js"></script>
       <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/map/js/world.js"></script>
       <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=ZUONbpqGBsYGXNIYHicvbAbM"></script>
       <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/echarts/extension/bmap.min.js"></script>
       <script type="text/javascript" src="http://echarts.baidu.com/gallery/vendors/simplex.js"></script>
       <script type="text/javascript">
var dom = document.getElementById("container");
var myChart = echarts.init(dom);
var app = {};
option = null;
var weatherIcons = {
    'Sunny': './data/asset/img/weather/sunny_128.png',
    'Cloudy': './data/asset/img/weather/cloudy_128.png',
    'Showers': './data/asset/img/weather/showers_128.png'
};

option = {
    title: {
        text: '天气情况统计',
        subtext: '虚构数据',
        left: 'center'
    },
    tooltip : {
        trigger: 'item',
        formatter: "{a} <br/>{b} : {c} ({d}%)"
    },
    legend: {
        // orient: 'vertical',
        // top: 'middle',
        bottom: 10,
        left: 'center',
        data: ['西凉', '益州','兖州','荆州','幽州']
    },
    series : [
        {
            type: 'pie',
            radius : '65%',
            center: ['50%', '50%'],
            selectedMode: 'single',
            data:[
                {
                    value:1548,
                    name: '幽州',
                    label: {
                        normal: {
                            formatter: [
                                '{title|{b}}{abg|}',
                                '  {weatherHead|天气}{valueHead|天数}{rateHead|占比}',
                                '{hr|}',
                                '  {Sunny|}{value|202}{rate|55.3%}',
                                '  {Cloudy|}{value|142}{rate|38.9%}',
                                '  {Showers|}{value|21}{rate|5.8%}'
                            ].join('\n'),
                            backgroundColor: '#eee',
                            borderColor: '#777',
                            borderWidth: 1,
                            borderRadius: 4,
                            rich: {
                                title: {
                                    color: '#eee',
                                    align: 'center'
                                },
                                abg: {
                                    backgroundColor: '#333',
                                    width: '100%',
                                    align: 'right',
                                    height: 25,
                                    borderRadius: [4, 4, 0, 0]
                                },
                                Sunny: {
                                    height: 30,
                                    align: 'left',
                                    backgroundColor: {
                                        image: weatherIcons.Sunny
                                    }
                                },
                                Cloudy: {
                                    height: 30,
                                    align: 'left',
                                    backgroundColor: {
                                        image: weatherIcons.Cloudy
                                    }
                                },
                                Showers: {
                                    height: 30,
                                    align: 'left',
                                    backgroundColor: {
                                        image: weatherIcons.Showers
                                    }
                                },
                                weatherHead: {
                                    color: '#333',
                                    height: 24,
                                    align: 'left'
                                },
                                hr: {
                                    borderColor: '#777',
                                    width: '100%',
                                    borderWidth: 0.5,
                                    height: 0
                                },
                                value: {
                                    width: 20,
                                    padding: [0, 20, 0, 30],
                                    align: 'left'
                                },
                                valueHead: {
                                    color: '#333',
                                    width: 20,
                                    padding: [0, 20, 0, 30],
                                    align: 'center'
                                },
                                rate: {
                                    width: 40,
                                    align: 'right',
                                    padding: [0, 10, 0, 0]
                                },
                                rateHead: {
                                    color: '#333',
                                    width: 40,
                                    align: 'center',
                                    padding: [0, 10, 0, 0]
                                }
                            }
                        }
                    }
                },
                {value:535, name: '荆州'},
                {value:510, name: '兖州'},
                {value:634, name: '益州'},
                {value:735, name: '西凉'}
            ],
            itemStyle: {
                emphasis: {
                    shadowBlur: 10,
                    shadowOffsetX: 0,
                    shadowColor: 'rgba(0, 0, 0, 0.5)'
                }
            }
        }
    ]
};
;
if (option && typeof option === "object") {
    myChart.setOption(option, true);
       myChart.on('click', function (params) {

                  console.table(params);

                    });
}
       </script>
   </body>
</html>