Menu
I am wondering if anyone knows how you would go about adding tooltips to multiple lines of data with Google Line Charts using DataTable, addColumn and addRow?
I've seen it done using other methods, but that is quite hard in my project and I feel like dumbass for not figuring this out. Anyways, I've dumbed down my code to present the essentials of my problem.
As you see, the tooltip shows for Line 2, but not for Line 1. My question is this: How do I add a tooltip to Line 1 using this method? My code: http://jsfiddle.net/Qquse/550/
<html>
<head>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('number', 'y');
data.addColumn('number', 'Line 1');
data.addColumn('number', 'Line 2');
data.addColumn({type: 'string', role: 'tooltip'});
data.addRow([1, 1, 2, "Some fancy tooltip"]);
data.addRow([2, 2, 4, "Some fancy tooltip"]);
data.addRow([3, 3, 6, "Some fancy tooltip"]);
data.addRow([4, 4, 8, "Some fancy tooltip"]);
data.addRow([5, 5, 10, "Some fancy tooltip"]);
var options = {
title: 'Graph'
};
var chart = new google.visualization.LineChart(document.getElementById('chart'));
chart.draw(data, options);
}
google.load("visualization", "1", {packages: ["corechart"]});
google.setOnLoadCallback(drawChart);
</script>
</head>
<body>
<div id="chart"></div>
</body>
</html>
710
To achieve this, we first add a table within the tooltip. The first column contains the categories ("women", "men"), and the second one contains the bars. In this second column, we then add HTML <div> tags and define the width of these boxes with our numerical columns.
While the dynamic and interactive Google Charts are actively maintained, we officially deprecated the static Google Image Charts way back in 2012. This gives us the right to turn it off without notice, which may happen soon.
Tooltips are a user interface element that pops up when you hover over a component on the screen. They display additional information for the component, and they're a great way to create meaningful yet decluttered data visualizations.
I tried adding both DataColumns first, then the tooltips. Turns out it had to be in this order:
data.addColumn('number', 'y');
data.addColumn('number', 'Line 1');
data.addColumn({type: 'string', role: 'tooltip'});
data.addColumn('number', 'Line 2');
data.addColumn({type: 'string', role: 'tooltip'});
instead of
data.addColumn('number', 'y');
data.addColumn('number', 'Line 1');
data.addColumn('number', 'Line 2');
data.addColumn({type: 'string', role: 'tooltip'});
data.addColumn({type: 'string', role: 'tooltip'});
Updated working fiddle: http://jsfiddle.net/Qquse/1207/
97
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With