Hello,
I would like to highlight the line of linechart when I click a spot,
like when I click a legend.
What function may I call in google.visualization.events.addListener?
Or are there any other methods?
Thanks in advance.
<html>
<head>
<script type="text/javascript" src="http://www.google.com/jsapi";></
script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["linechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Year');
data.addColumn('number', 'Sales');
data.addColumn('number', 'Expenses');
data.addRows(4);
data.setValue(0, 0, '2004');
data.setValue(0, 1, 1000);
data.setValue(0, 2, 400);
data.setValue(1, 0, '2005');
data.setValue(1, 1, 1170);
data.setValue(1, 2, 460);
data.setValue(2, 0, '2006');
data.setValue(2, 1, 860);
data.setValue(2, 2, 580);
data.setValue(3, 0, '2007');
data.setValue(3, 1, 1030);
data.setValue(3, 2, 540);
var chart = new google.visualization.LineChart
(document.getElementById('chart_div'));
chart.draw(data, {width: 400, height: 240, legend: 'bottom',
title: 'Company Performance'});
google.visualization.events.addListener(chart, 'select',
function() {
// How to hightlight the line?
});
}
</script>
</head>
<body>
<div id="chart_div"></div>
</body>
</html>
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