直接上代码
var mycharts=echarts.init(document.getElementById("你的divId")) option = { series : [ { name: '访问来源', type: 'pie', radius: '55%', data:[ {value:235, name:'视频广告'}, {value:274, name:'联盟广告'}, {value:310, name:'邮件营销'}, {value:335, name:'直接访问'}, {value:400, name:'搜索引擎'} ], roseType: 'angle', itemStyle: { normal: { shadowBlur: 200, shadowColor: 'rgba(0, 0, 0, 0.5)' } } } ] }; mycharts.setOption(option); tools.loopShowTooltip(mycharts, option, { loopSeries: true });JS 代码
(function (global) { global.tools = global.tools || {}; tools.loopShowTooltip = function (chart, chartOption, options) { var defaultOptions = { interval: 2000, loopSeries: false, seriesIndex: 0, updateData: null }; if (!chart || !chartOption) { return {}; } var dataIndex = 0; // 数据索引，初始化为-1，是为了判断是否是第一次执行 var seriesIndex = 0; // 系列索引 var timeTicket = 0; var seriesLen = chartOption.series.length; // 系列个数 var dataLen = 0; // 某个系列数据个数 var chartType; // 系列类型 var first = true; //不循环series时seriesIndex指定显示tooltip的系列，不指定默认为0，指定多个则默认为第一个 //循环series时seriesIndex指定循环的series，不指定则从0开始循环所有series，指定单个则相当于不循环，指定多个 //要不要添加开始series索引和开始的data索引？ if (options) { options.interval = options.interval || defaultOptions.interval; options.loopSeries = options.loopSeries || defaultOptions.loopSeries; options.seriesIndex = options.seriesIndex || defaultOptions.seriesIndex; options.updateData = options.updateData || defaultOptions.updateData; } else { options = defaultOptions; } //如果设置的seriesIndex无效，则默认为0 if (options.seriesIndex < 0 || options.seriesIndex >= seriesLen) { seriesIndex = 0; } else { seriesIndex = options.seriesIndex; } function autoShowTip() { function showTip(){ //判断是否更新数据 if(dataIndex === 0 && !first && typeof options.updateData === "function") { options.updateData(); chart.setOption(chartOption); document.getElementById('pie1Word').innerHTML = dataIndex; } var series = chartOption.series; chartType = series[seriesIndex].type; // 系列类型 dataLen = series[seriesIndex].data.length; // 某个系列的数据个数 var tipParams = {seriesIndex: seriesIndex}; switch(chartType) { case 'map': case 'pie': case 'chord': tipParams.name = series[seriesIndex].data[dataIndex].name; break; case 'radar': // 雷达图 tipParams.seriesIndex = seriesIndex; tipParams.dataIndex = dataIndex; break; default: tipParams.dataIndex = dataIndex; break; } if(chartType === 'pie' || chartType === 'radar') { // 取消之前高亮的图形 chart.dispatchAction({ type: 'downplay', seriesIndex: options.loopSeries ? (seriesIndex === 0 ? seriesLen - 1 : seriesIndex - 1) : seriesIndex, dataIndex: dataIndex === 0 ? dataLen - 1 : dataIndex - 1 }); // 高亮当前图形 chart.dispatchAction({ type: 'highlight', seriesIndex: seriesIndex, dataIndex: dataIndex, }); } // 显示 tooltip tipParams.type = 'showTip'; chart.dispatchAction(tipParams); dataIndex = (dataIndex + 1) % dataLen; if (options.loopSeries && dataIndex === 0 && !first) { // 数据索引归0表示当前系列数据已经循环完 seriesIndex = (seriesIndex + 1) % seriesLen; } first = false; } showTip(); timeTicket = setInterval(showTip, options.interval); } // 关闭轮播 function stopAutoShow() { if (timeTicket) { clearInterval(timeTicket); timeTicket = 0; if(chartType === 'pie' || chartType === 'radar') { // 取消高亮的图形 chart.dispatchAction({ type: 'downplay', seriesIndex: options.loopSeries ? (seriesIndex === 0 ? seriesLen - 1 : seriesIndex - 1) : seriesIndex, dataIndex: dataIndex === 0 ? dataLen - 1 : dataIndex - 1 }); } } } var zRender = chart.getZr(); function zRenderMouseMove(param) { if (param.event) { //阻止canvas上的鼠标移动事件冒泡 param.event.cancelBubble = true; } stopAutoShow(); } // 离开echarts图时恢复自动轮播 function zRenderGlobalOut() { if (!timeTicket) { autoShowTip(); } } // 鼠标在echarts图上时停止轮播 chart.on('mousemove', stopAutoShow); zRender.on('mousemove', zRenderMouseMove); zRender.on('globalout', zRenderGlobalOut); autoShowTip(); return { clearLoop: function() { if (timeTicket) { clearInterval(timeTicket); timeTicket = 0; } chart.off('mousemove', stopAutoShow); zRender.off('mousemove', zRenderMouseMove); zRender.off('globalout', zRenderGlobalOut); } }; }; })(window);