Google Chart - google chart tutorial - TreeMap Chart - chart js - google graphs - google charts examples
- TreeMap is a visual representation of a data tree, where each node may have zero or more children, and one parent (except for the root).
- Each node is displayed as a rectangle, can be sized and colored according to values that we assign.
- Sizes and colors are valued relative to all other nodes in the graph.
Configuration:
- We've used TreeMap class to show treemap diagram.
//TreeMap chart
var chart = new google.visualization.TreeMap(document.getElementById('container'));
Clicking "Copy Code" button to copy the code. From - google charts tutorial - team
Example:
Tryit<html>
<head>
<title>wikitechy Google Charts Tutorial</title>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.charts.load('current', {packages: ['treemap']});
</script>
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script language="JavaScript">
function drawChart() {
// Define the chart to be drawn.
var data = new google.visualization.DataTable();
var data = google.visualization.arrayToDataTable([
['Location', 'Parent', 'Market trade volume (size)', 'Market increase/decrease (color)'],
['Global', null, 0, 0],
['America', 'Global', 0, 0],
['Europe', 'Global', 0, 0],
['Asia', 'Global', 0, 0],
['Australia', 'Global', 0, 0],
['Africa', 'Global', 0, 0],
['USA', 'America', 52, 31],
['Mexico', 'America', 24, 12],
['Canada', 'America', 16, -23],
['France', 'Europe', 42, -11],
['Germany', 'Europe', 31, -2],
['Sweden', 'Europe', 22, -13],
['China', 'Asia', 36, 4],
['Japan', 'Asia', 20, -12],
['India', 'Asia', 40, 63],
['Egypt', 'Africa', 21, 0],
['Congo', 'Africa', 10, 12],
['Zaire', 'Africa', 8, 10]
]);
var options = {
minColor: '#f00',
midColor: '#ddd',
maxColor: '#0d0',
headerHeight: 15,
fontColor: 'black',
showScale: true
};
// Instantiate and draw the chart.
var chart = new google.visualization.TreeMap(document.getElementById('container'));
chart.draw(data, options);
}
google.charts.setOnLoadCallback(drawChart);
</script>
</body>
</html>