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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script type="text/javascript" src="Highcharts/js/highcharts.js"></script>
<script type="text/javascript" src="jquery.js"></script>
</head>
<body>
<div id="container" style="min-width: 400px; height: 400px; margin: 0 auto"></div>
<table id="datatable">
<thead>
<tr>
<th></th>
<th>Jane</th>
<th>John</th>
</tr>
</thead>
<tbody>
<tr>
<th>Apples</th>
<td>3</td>
<td>4</td>
</tr>
<tr>
<th>Pears</th>
<td>2</td>
<td>0</td>
</tr>
<tr>
<th>Plums</th>
<td>5</td>
<td>11</td>
</tr>
<tr>
<th>Bananas</th>
<td>1</td>
<td>1</td>
</tr>
<tr>
<th>Oranges</th>
<td>2</td>
<td>4</td>
</tr>
</tbody>
</table>
<script type="text/javascript">
$(function () {
// On document ready, call visualize on the datatable.
$(document).ready(function() {
/**
* Visualize an HTML table using Highcharts. The top (horizontal) header
* is used for series names, and the left (vertical) header is used
* for category names. This function is based on jQuery.
* @param {Object} table The reference to the HTML table to visualize
* @param {Object} options Highcharts options
*/
Highcharts.visualize = function(table, options) {
// the categories
options.xAxis.categories = [];
$('tbody th', table).each( function(i) {
options.xAxis.categories.push(this.innerHTML);
});
// the data series
options.series = [];
$('tr', table).each( function(i) {
var tr = this;
$('th, td', tr).each( function(j) {
if (j > 0) { // skip first column
if (i == 0) { // get the name and init the series
options.series[j - 1] = {
name: this.innerHTML,
data: []
};
} else { // add values
options.series[j - 1].data.push(parseFloat(this.innerHTML));
}
}
});
});
var chart = new Highcharts.Chart(options);
}
var table = document.getElementById('datatable'),
options = {
chart: {
renderTo: 'container',
type: 'column'
},
title: {
text: 'Data extracted from a HTML table in the page'
},
xAxis: {
},
yAxis: {
title: {
text: 'Units'
}
},
tooltip: {
formatter: function() {
return '<b>'+ this.series.name +'</b><br/>'+
this.y +' '+ this.x.toLowerCase();
}
}
};
Highcharts.visualize(table, options);
});
});
</script>
</body>
</html> |
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