下面是一个具有缺失值的面积图的一个例子。
我们已经看到大部分用于绘制图表在Highcharts配置语法章中已经讲解如何配置。 所以，让我们来看看其他配置。我们在图中加入spacingBottom属性。
chart
配置图表的spacingBottom为30。它标志着图表（在顶部位置绘图区，轴标题和标签，标题，副标题或图例）底边和内容之间的空间。
var chart = {
type: 'area',
spacingBottom: 30
};
示例
highcharts_area_missing.htm
<html>
<head>
<title>Highcharts Tutorial</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.3/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 chart = {
type: 'area',
spacingBottom: 30
};
var title = {
text: 'Fruit consumption *'
};
var subtitle = {
text: '* Jane\'s banana consumption is unknown',
floating: true,
align: 'right',
verticalAlign: 'bottom',
y: 15
};
var legend = {
layout: 'vertical',
align: 'left',
verticalAlign: 'top',
x: 150,
y: 100,
floating: true,
borderWidth: 1,
backgroundColor: (Highcharts.theme && Highcharts.theme.legendBackgroundColor) || '#FFFFFF'
};
var xAxis = {
categories: ['Apples', 'Pears', 'Oranges', 'Bananas', 'Grapes', 'Plums', 'Strawberries', 'Raspberries']
};
var yAxis = {
title: {
text: 'Y-Axis'
},
labels: {
formatter: function () {
return this.value;
}
}
};
var tooltip = {
formatter: function () {
return '<b>' + this.series.name + '</b><br/>' +
this.x + ': ' + this.y;
}
};
var plotOptions = {
area: {
fillOpacity: 0.5
}
};
var credits = {
enabled: false
};
var series= [{
name: 'John',
data: [0, 1, 4, 4, 5, 2, 3, 7]
}, {
name: 'Jane',
data: [1, 0, 3, null, 3, 1, 2, 1]
}
];
var json = {};
json.chart = chart;
json.title = title;
json.subtitle = subtitle;
json.xAxis = xAxis;
json.yAxis = yAxis;
json.legend = legend;
json.tooltip = tooltip;
json.plotOptions = plotOptions;
json.credits = credits;
json.series = series;
$('#container').highcharts(json);
});
</script>
</body>
</html>
结果
验证输出结果：
