对数 x 轴
Highcharts 对数图表
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
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
};
实例
文件名：highcharts_line_logarithmic.htm
<html>
<head>
<meta charset="UTF-8" />
<title>Highcharts 教程 | 布布教程(jiaocheng.bubufx.com)</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(jiaocheng.bubufx.com)‘
};
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>