标签:script inner 判断 mode build only 不同的 box line
Echarts版本:2.2.7
具体思路,通过对饼状图对象注册ecConfig.EVENT.PIE_SELECTED事件,对饼状图点击的块进行判断,根据需求改变series中的对象以及对象中的数据,从而进行改变饼状图的层的展示,如下图所示(数据来自官方网站),点击同心圆最里层的不同部分会显示不同的数据
代码如下:
<!DOCTYPE html> <html> <head> <title></title> <style type="text/css"> #platoBox { width: 600px; height: 600px; } </style> <script src="http://echarts.baidu.com/build/dist/echarts.js"></script> <script type="text/javascript"> window.onload = function() { // 路径配置 require.config({ paths: { echarts: ‘http://echarts.baidu.com/build/dist‘ } }); require([ ‘echarts‘, ‘echarts/chart/pie‘ ], function(ec) { var dom = document.getElementById("platoBox"); var myChart = ec.init(dom); option = { tooltip: { trigger: ‘item‘, formatter: "{a} <br/>{b} : {c} ({d}%)" }, legend: { orient: ‘vertical‘, x: ‘left‘, data: [‘直达‘, ‘营销广告‘, ‘搜索引擎‘, ‘邮件营销‘, ‘联盟广告‘, ‘视频广告‘, ‘百度‘, ‘谷歌‘, ‘必应‘, ‘其他‘] }, toolbox: { show: true, feature: { mark: { show: true }, dataView: { show: true, readOnly: false }, magicType: { show: true, type: [‘pie‘, ‘funnel‘] }, restore: { show: true }, saveAsImage: { show: true } } }, calculable: false, series: [{ name: ‘访问来源‘, type: ‘pie‘, selectedMode: ‘single‘, radius: [0, 70], // for funnel x: ‘20%‘, width: ‘40%‘, funnelAlign: ‘right‘, max: 1548, itemStyle: { normal: { label: { position: ‘inner‘ }, labelLine: { show: false } } }, data: [ { value: 335, name: ‘直达‘ }, { value: 679, name: ‘营销广告‘ }, { value: 1548, name: ‘搜索引擎‘} ] }, { name: ‘访问来源‘, type: ‘pie‘, radius: [100, 140], // for funnel x: ‘60%‘, width: ‘35%‘, funnelAlign: ‘left‘, max: 1048, data: [ ] } ] }; myChart.setOption(option); var ecConfig = require(‘echarts/config‘); myChart.on(ecConfig.EVENT.PIE_SELECTED, function(param) { var selected = param.selected; var serie; for (var idx in selected) { //idx指示具体是哪一个同心圆,其中最里面的同心圆是‘0‘,注意该值是字符串 serie = option.series[idx]; for (var i = 0, l = serie.data.length; i < l; i++) { //i代表同一个同心圆第几部分,即series中data的第几条数据 if (selected[idx][i]) { //通过对idx和i值的判断,可以确定点击的是哪一部分,然后对option进行操作 if (idx === "0") { if (i === 0) { option.series[1].data = [{ value: 335, name: ‘直达‘ }]; } else if (i === 1) { option.series[1].data = [ { value: 310, name: ‘邮件营销‘ }, { value: 234, name: ‘联盟广告‘ }, { value: 135, name: ‘视频广告‘ } ]; } else{ option.series[1].data = [ { value: 1048, name: ‘百度‘ }, { value: 251, name: ‘谷歌‘ }, { value: 147, name: ‘必应‘ }, { value: 102, name: ‘其他‘ } ]; } } } } } myChart.setOption(option, true); }) }) } </script> </head> <body> <div id="platoBox"> </div> </body> </html>
标签:script inner 判断 mode build only 不同的 box line
原文地址:http://www.cnblogs.com/gebizhuifenren/p/7745705.html