在本章中,我们将展示使用Highcharts API绘制图表所需的配置.
使用jQuery和Highcharts javascript库创建一个HTML页面.
HighchartsTestHarness.htm
<html> <head> <title>Highcharts Tutorial</title> <script src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"> </script> <script src = "https://code.highcharts.com/highcharts.js"></script> </head> <body> <div id = "container" style = "width: 550px; height: 400px; margin: 0 auto"></div> <script language = "JavaScript"> $(document).ready(function() { }); </script> </body> </html>
此处容器 div用于包含使用Highcharts库绘制的图表.
Highcharts库使用非常简单的配置,使用json语法.
$('#container').highcharts(json);
这里json表示使用highcharts()方法在Highcharts库中用于在容器div中绘制图表的json数据和配置.现在,我们将配置各种参数以创建所需的json字符串.
配置图表的标题.
var title = { text: 'Monthly Average Temperature' };
配置图表的字幕.
var subtitle = { text: 'Source: WorldClimate.com' };
配置股票代码显示在X轴上.
var xAxis = { categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun' ,'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] };
配置标题,绘制线条以显示在Y轴上.
var yAxis = { title: { text: 'Temperature (\xB0C)' }, plotLines: [{ value: 0, width: 1, color: '#808080' }] };
配置工具提示.将后缀添加到值(y轴)之后.
var tooltip = { valueSuffix: '\xB0C' }
将图例配置为与其他图表一起显示在图表的右侧属性.
var legend = { layout: 'vertical', align: 'right', verticalAlign: 'middle', borderWidth: 0 };
配置要在图表上显示的数据. Series是一个数组,其中此数组的每个元素在图表上代表一行.
var series = [ { name: 'Tokyo', data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6] }, { name: 'New York', data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5] }, { name: 'Berlin', data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0] }, { name: 'London', data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8] } ];
组合所有配置.
var json = {}; json.title = title; json.subtitle = subtitle; json.xAxis = xAxis; json.yAxis = yAxis; json.tooltip = tooltip; json.legend = legend; json.series = series;
$('#container').highcharts(json);
请考虑以下示例以进一步了解配置语法 :
highcharts_configuration.htm
<html> <head> <title>Highcharts Tutorial</title> <script src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"> </script> <script src = "https://code.highcharts.com/highcharts.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: 'Monthly Average Temperature' }; var subtitle = { text: 'Source: WorldClimate.com' }; var xAxis = { categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'] }; var yAxis = { title: { text: 'Temperature (\xB0C)' }, plotLines: [{ value: 0, width: 1, color: '#808080' }] }; var tooltip = { valueSuffix: '\xB0C' } var legend = { layout: 'vertical', align: 'right', verticalAlign: 'middle', borderWidth: 0 }; var series = [{ name: 'Tokyo', data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6] }, { name: 'New York', data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5] }, { name: 'Berlin', data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0] }, { name: 'London', data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8] } ]; var json = {}; json.title = title; json.subtitle = subtitle; json.xAxis = xAxis; json.yAxis = yAxis; json.tooltip = tooltip; json.legend = legend; json.series = series; $('#container').highcharts(json); }); </script> </body> </html>
验证结果.