Is it possible to get the value of annotation that takes each bar when the
user clicks?
This is my code:
google.load('visualization', '1', {packages: ['corechart', 'bar']});
google.setOnLoadCallback(drawBasic);
function drawBasic() {
var data = new google.visualization.DataTable();
data.addColumn('string', 'Time of Day');
data.addColumn('number', 'Motivation Level');
data.addColumn({ type: 'string', role: 'annotation' });
data.addColumn('number', 'Motivation');
data.addColumn({ type: 'string', role: 'annotation' });
data.addRows([
["6/4/2015", 10,"e", 11, "a"] ,
["13/4/2015", 10,"f", 15, "b"] ,
["7/4/2015", 20, "g", 17,"c"] ,
["14/4/2015", 10,"h", 18,"d"] ,
["8/4/2015", 10, "i", 19,"e"] ,
]);
var chart = new google.visualization.ColumnChart(
document.getElementById('chart_div'));
chart.draw(data, null);
google.visualization.events.addListener(chart, 'select', selectHandler);
function selectHandler(e) {
}
}
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