I have an error when rendering a pie-chart:
"Cannot read property 'bottom' of undefined"
and I cannot track why this is now appearing (recently it did not). How can
we investigate where this is coming from, particularly if it is some
style/script 'conflict' with another library? This is the code that is
presently (and only recently) creating this error in the div where the
chart is supposed to be:
// setting some variables and so on before this point
google.load('visualization', '1', {packages:['corechart']});
google.setOnLoadCallback(drawMyChartCallback);
function drawMyChartCallback(){
var _selected = json.packets.current;
var _other = json.packets.max - json.packets.current;
var data = google.visualization.arrayToDataTable([
['Database packets', 'Number Selected'],
['Packets in selection ('+numberWithCommas(_selected)+')',_selected],
['Other ('+numberWithCommas(_other)+')',_other]
]);
var options = {
fontSize: 16,
legend: 'labeled', //none, left, top, labeled
chartArea: {width: '65%', height: '80%', left:10, top:10, bottom:10},
pieSliceText: 'none',
pieStartAngle: 135,
tooltip: { trigger: 'label' },
sliceVisibilityThreshold:0,
slices: {
0: { color: 'lightgreen' }, //green, lightgreen
1: { color: 'lightgrey' } //grey, lightgrey
}
};
new google.visualization.PieChart(document.getElementById('google_piechart'
)).draw(data, options); //google_piechart is the div
}//callback
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