以下实例演示了向下钻取饼图。
我们在前面的章节已经了解了 Highcharts 基本配置语法。接下来让我们来看下其他的配置。
drilldown 用于向下钻取数据，通过点击某项深入到其中的具体数据。
drilldown: {
series: drilldownSeries
}
文件名：highcharts_pie_drilldown.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>
<script src="http://code.highcharts.com/modules/drilldown.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() {
Highcharts.data({
csv: document.getElementById('tsv').innerHTML,
itemDelimiter: '\t',
parsed: function (columns) {
var brands = {}, brandsData = [], versions = {}, drilldownSeries = [];
// Parse percentage strings
columns[1] = $.map(columns[1], function (value) {
if (value.indexOf('%') === value.length - 1) {
value = parseFloat(value);
}
return value;
});
$.each(columns[0], function (i, name) {
var brand, version;
if (i > 0) {
// Remove special edition notes
name = name.split(' -')[0];
// Split into brand and version
version = name.match(/([0-9]+[\.0-9x]*)/);
if (version) {
version = version[0];
}
brand = name.replace(version, '');
// Create the main data
if (!brands[brand]) {
brands[brand] = columns[1][i];
} else {
brands[brand] += columns[1][i];
}
// Create the version data
if (version !== null) {
if (!versions[brand]) {
versions[brand] = [];
}
versions[brand].push(['v' + version, columns[1][i]]);
}
}
});
$.each(brands, function (name, y) {
brandsData.push({
name: name,
y: y,
drilldown: versions[name] ? name : null
});
});
$.each(versions, function (key, value) {
drilldownSeries.push({
name: key,
id: key,
data: value
});
});
var chart = {
type: 'pie'
};
var title = {
text: 'Browser market shares. November, 2013'
};
var subtitle = {
text: 'Click the slices to view versions. Source: netmarketshare.com.'
};
var xAxis = {
type: 'category'
};
var yAxis ={
title: {
text: 'Total percent market share'
}
};
var tooltip = {
headerFormat: '<span style="font-size:11px">{series.name}</span><br>',
pointFormat: '<span style="color:{point.color}">{point.name}</span>: <b>{point.y:.2f}%</b> of total<br/>'
};
var credits = {
enabled: false
};
var series= [{
name: 'Brands',
colorByPoint: true,
data: brandsData
}];
var drilldown= {
series: drilldownSeries
}
var json = {};
json.chart = chart;
json.title = title;
json.subtitle = subtitle;
json.xAxis = xAxis;
json.yAxis = yAxis;
json.tooltip = tooltip;
json.credits = credits;
json.series = series;
json.drilldown = drilldown;
$('#container').highcharts(json);
}
});
});
</script>
<!-- Data from www.netmarketshare.com. Select Browsers => Desktop share by version. Download as tsv. -->
<pre id="tsv" style="display:none">
Browser Version Total Market Share
Microsoft Internet Explorer 8.0 26.61%
Microsoft Internet Explorer 9.0 16.96%
Chrome 18.0 8.01%
Chrome 19.0 7.73%
Firefox 12 6.72%
Microsoft Internet Explorer 6.0 6.40%
Firefox 11 4.72%
Microsoft Internet Explorer 7.0 3.55%
Safari 5.1 3.53%
Firefox 13 2.16%
Firefox 3.6 1.87%
Opera 11.x 1.30%
Chrome 17.0 1.13%
Firefox 10 0.90%
Safari 5.0 0.85%
Firefox 9.0 0.65%
Firefox 8.0 0.55%
Firefox 4.0 0.50%
Chrome 16.0 0.45%
Firefox 3.0 0.36%
Firefox 3.5 0.36%
Firefox 6.0 0.32%
Firefox 5.0 0.31%
Firefox 7.0 0.29%
Proprietary or Undetectable 0.29%
Chrome 18.0 - Maxthon Edition 0.26%
Chrome 14.0 0.25%
Chrome 20.0 0.24%
Chrome 15.0 0.18%
Chrome 12.0 0.16%
Opera 12.x 0.15%
Safari 4.0 0.14%
Chrome 13.0 0.13%
Safari 4.1 0.12%
Chrome 11.0 0.10%
Firefox 14 0.10%
Firefox 2.0 0.09%
Chrome 10.0 0.09%
Opera 10.x 0.09%
Microsoft Internet Explorer 8.0 - Tencent Traveler Edition 0.09% 