| option = { |
| title: { |
| text: '饼图程序调用高亮示例', |
| left: 'center' |
| }, |
| tooltip: { |
| trigger: 'item', |
| formatter: '{a} <br/>{b} : {c} ({d}%)' |
| }, |
| legend: { |
| orient: 'vertical', |
| left: 'left', |
| data: ['直接访问', '邮件营销', '联盟广告', '视频广告', '搜索引擎'] |
| }, |
| series: [ |
| { |
| name: '访问来源', |
| type: 'pie', |
| radius: '55%', |
| center: ['50%', '60%'], |
| data: [ |
| {value: 335, name: '直接访问'}, |
| {value: 310, name: '邮件营销'}, |
| {value: 234, name: '联盟广告'}, |
| {value: 135, name: '视频广告'}, |
| {value: 1548, name: '搜索引擎'} |
| ], |
| emphasis: { |
| itemStyle: { |
| shadowBlur: 10, |
| shadowOffsetX: 0, |
| shadowColor: 'rgba(0, 0, 0, 0.5)' |
| } |
| } |
| } |
| ] |
| }; |
| |
| app.currentIndex = -1; |
| |
| setInterval(function () { |
| var dataLen = option.series[0].data.length; |
| // 取消之前高亮的图形 |
| myChart.dispatchAction({ |
| type: 'downplay', |
| seriesIndex: 0, |
| dataIndex: app.currentIndex |
| }); |
| app.currentIndex = (app.currentIndex + 1) % dataLen; |
| // 高亮当前图形 |
| myChart.dispatchAction({ |
| type: 'highlight', |
| seriesIndex: 0, |
| dataIndex: app.currentIndex |
| }); |
| // 显示 tooltip |
| myChart.dispatchAction({ |
| type: 'showTip', |
| seriesIndex: 0, |
| dataIndex: app.currentIndex |
| }); |
| }, 1000); |