以下实例演示了对数图表。
我们在前面的章节已经了解了 Highcharts 配置语法。接下来让我们来看下如何配置。
配置 yAxis.type 为 'logarithmic'。它定义了 x 轴类型。可选值有 "linear", "logarithmic", "datetime" 或 "category"。默认值为linear。
| yAxis |
| var yAxis = { |
| type: 'logarithmic', |
| minorTickInterval: 0.1 |
| }; |
文件名：highcharts_line_logarithmic.htm
| <html> |
| <head> |
| <meta charset="UTF-8" /> |
| <title>Highcharts 教程 | 芝麻教程(web3.xin)</title> |
| <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> |
| <script src="http://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: '对数实例(web3.xin)' |
| }; |
| var xAxis = { |
| tickInterval: 1 |
| }; |
| var yAxis = { |
| type: 'logarithmic', |
| minorTickInterval: 0.1 |
| }; |
| var tooltip = { |
| headerFormat: '<b>{series.name}</b><br>', |
| pointFormat: 'x = {point.x}, y = {point.y}' |
| }; |
| var plotOptions = { |
| spline: { |
| marker: { |
| enabled: true |
| } |
| } |
| }; |
| var series= [{ |
| name: 'data', |
| data: [1, 2, 4, 8, 16, 32, 64, 128, 256, 512], |
| pointStart: 1 |
| } |
| ]; |
| var json = {}; |
| json.title = title; |
| json.tooltip = tooltip; |
| json.xAxis = xAxis; |
| json.yAxis = yAxis; |
| json.series = series; |
| json.plotOptions = plotOptions; |
| $('#container').highcharts(json); |
| }); |
| </script> |
| </body> |
| </html> |
