Highcharts 异步加载数据曲线图表
以下实例演示了异步加载数据曲线图表。这边我们通过 jQuery.getJSON() 方法从异步加载 csv 文件：
我们在前面的章节已经了解了 Highcharts 配置语法。接下来让我们来看个完整实例：
导入 data.js 文件
异步加载数据需要引入以下js 文件：
<script src="http://code.highcharts.com/modules/data.js"></script>
配置
X 轴
以每周为间隔设置 X 轴：
var xAxis = { tickInterval: 7 * 24 * 3600 * 1000, // 一周 tickWidth: 0, gridLineWidth: 1, labels: { align: 'left', x: 3, y: -3 } };
Y 轴
以每周为间隔设置 Y 轴：
配置两个 Y 轴：
var yAxis = [{ // 左边 Y 轴 title: { text: null }, labels: { align: 'left', x: 3, y: 16, format: '{value:.,0f}' }, showFirstLabel: false },{ // 右边 Y 轴 linkedTo: 0, gridLineWidth: 0, opposite: true, title: { text: null }, labels: { align: 'right', x: -3, y: 16, format: '{value:.,0f}' }, showFirstLabel: false } ];
plotOptions
plotOptions用于设置图表中的数据点相关属性。
var plotOptions = { series: { cursor: 'pointer', point: { events: { click: function (e) { hs.htmlExpand(null, { pageOrigin: { x: e.pageX || e.clientX, y: e.pageY || e.clientY }, headingText: this.series.name, maincontentText: Highcharts.dateFormat('%A, %b %e, %Y', this.x) + ':<br/> ' + this.y + ' visits', width: 200 }); } } }, marker: { lineWidth: 1 } } }
实例
文件名：highcharts_line_ajax.html
<html> <head> <title>Highcharts Tutorial</title> <title>Highcharts 教程 | 菜鸟教程(runoob.com)</title> <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <script src="/try/demo_source/highcharts.js"></script> <script src="http://code.highcharts.com/highcharts-more.js"></script> <script src="http://code.highcharts.com/modules/data.js"></script> </head> <body> <div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div> <script language="JavaScript"> $(document).ready(function() { var title = { text: 'Daily visits at www.highcharts.com' }; var subtitle = { text: 'Source: Google Analytics' }; var xAxis = { tickInterval: 7 * 24 * 3600 * 1000, // 一周 tickWidth: 0, gridLineWidth: 1, labels: { align: 'left', x: 3, y: -3 } }; var yAxis = [{ // 左边 y 轴 title: { text: null }, labels: { align: 'left', x: 3, y: 16, format: '{value:.,0f}' }, showFirstLabel: false },{ // 右边 y 轴 linkedTo: 0, gridLineWidth: 0, opposite: true, title: { text: null }, labels: { align: 'right', x: -3, y: 16, format: '{value:.,0f}' }, showFirstLabel: false } ]; var tooltip = { shared: true, crosshairs: true } var legend = { align: 'left', verticalAlign: 'top', y: 20, floating: true, borderWidth: 0 }; var plotOptions = { series: { cursor: 'pointer', point: { events: { click: function (e) { hs.htmlExpand(null, { pageOrigin: { x: e.pageX || e.clientX, y: e.pageY || e.clientY }, headingText: this.series.name, maincontentText: Highcharts.dateFormat('%A, %b %e, %Y', this.x) + ':<br/> ' + this.y + ' visits', width: 200 }); } } }, marker: { lineWidth: 1 } } } var series = [{ name: 'All visits', lineWidth: 4, marker: { radius: 4 } }, { name: 'New visitors' }] var json = {}; json.title = title; json.subtitle = subtitle; json.xAxis = xAxis; json.yAxis = yAxis; json.tooltip = tooltip; json.legend = legend; json.series = series; json.plotOptions = plotOptions; $.getJSON('http://www.highcharts.com/samples/data/jsonp.php?filename=analytics.csv&callback=?', function (csv) { var data = { csv: csv }; json.data = data; $('#container').highcharts(json); }); }); </script> </body> </html>
以上实例输出结果为：
