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option = { title : { text: '动态数据', subtext: '纯属虚构' }, tooltip : { trigger: 'axis' }, legend: { data:['最新成交价', '预购队列'] }, toolbox: { show : true, feature : { mark : true, dataView : {readOnly: false}, magicType:['line', 'bar'], restore : true, saveAsImage : true } }, dataZoom : { show : false, realtime: true, start : 50, end : 100 }, xAxis : [ { type : 'category', boundaryGap : true, data : (function(){ var now = new Date(); var res = []; var len = 10; while (len--) { res.unshift(now.toLocaleTimeString().replace(/^\D*/,'')); now = new Date(now - 2000); } return res; })() }, { type : 'category', boundaryGap : true, splitline : {show : false}, data : (function(){ var res = []; var len = 10; while (len--) { res.push(len + 1); } return res; })() } ], yAxis : [ { type : 'value', scale: true, precision:1, power:1, name : '价格', boundaryGap: [0.2, 0.2], splitArea : {show : true} }, { type : 'value', scale: true, name : '预购量', boundaryGap: [0.2, 0.2] } ], series : [ { name:'预购队列', type:'bar', xAxisIndex: 1, yAxisIndex: 1, itemStyle: { normal: { color : 'rgba(135,206,205,0.4)' } }, data:(function(){ var res = []; var len = 10; while (len--) { res.push(Math.round(Math.random() * 1000)); } return res; })() }, { name:'最新成交价', type:'line', itemStyle: { normal: { // areaStyle: {type: 'default'}, lineStyle: { shadowColor : 'rgba(0,0,0,0.4)' } } }, data:(function(){ var res = []; var len = 10; while (len--) { res.push((Math.random()*10 + 5).toFixed(1) - 0); } return res; })() } ] }; var lastData = 11; var axisData; clearInterval(timeTicket); timeTicket = setInterval(function(){ lastData += Math.random() * ((Math.round(Math.random() * 10) % 2) == 0 ? 1 : -1); lastData = lastData.toFixed(1) - 0; axisData = (new Date()).toLocaleTimeString().replace(/^\D*/,''); // 动态数据接口 addData myChart.addData([ [ 0, // 系列索引 Math.round(Math.random() * 1000), // 新增数据 true, // 新增数据是否从队列头部插入 false // 是否增加队列长度,false则自定删除原有数据,队头插入删队尾,队尾插入删队头 ], [ 1, // 系列索引 lastData, // 新增数据 false, // 新增数据是否从队列头部插入 false, // 是否增加队列长度,false则自定删除原有数据,队头插入删队尾,队尾插入删队头 axisData // 坐标轴标签 ] ]); }, 2000);
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