first, it appears you have an extra annotation column in your data,
that doesn't appear to belong to a specific column
copied from question above...
var data = new google.visualization.arrayToDataTable([
[
'Time Period',
'XYZ',
{role: 'annotation'},
'ABC',
{role: 'annotation'},
{role: 'annotation'}, // <-- extra annotation?
'Average'
],
[
'Aug',
3754,
'3754',
2089,
'2089',
'5,843', // <-- extra annotation?
4000
],
...
]);
this could be part of the reason it's so cluttered
regardless, use the annotations configuration option for adjustments
the config option can be used for the entire chart, or just for a specific series
var options = {
// entire chart
annotations: {
textStyle: {
fontSize: 10
}
},
series: {
0: {
// series 0
annotations: {
stem: {
length: 0
},
},
},
1: {
// series 1
annotations: {
stem: {
length: 16
}
},
},
}
...
};
specifically, you can use a combination of annotations.textStyle.fontSize and annotations.stem.length to prevent overlapping
see following working snippet...
annotations.textStyle.fontSize is reduced for the entire chart
this allows the first annotation on the second column to fit within the bar
annotations.stem.length is set to zero (0) on the first series,
and 16 on the second...
(the extra annotation from the question has been removed)
google.charts.load('current', {
callback: drawStacked,
packages: ['corechart']
});
function drawStacked() {
var data = new google.visualization.arrayToDataTable([
['Time Period', 'XYZ', {role: 'annotation'}, 'ABC', {role: 'annotation'}, 'Average'],
['Aug', 3754, '3754', 2089, '2089', 4000],
['Sept', 900, '900', 200, '200', 4000],
['Oct', 2000, '2000', 4900, '4900', 4000],
['Nov', 1700, '1700', 2200, '2200', 4000],
['Dec', 2400, '2400', 2089, '2200', 4000]
]);
var options = {
annotations: {
textStyle: {
fontSize: 10
}
},
series: {
0: {
annotations: {
stem: {
length: 0
},
},
},
1: {
annotations: {
stem: {
length: 16
}
},
},
2: {
type: 'line'
}
},
hAxis: {
title: 'Time Period'
},
isStacked: true,
seriesType: 'bars',
title: 'Overview of the Tickets',
vAxis: {
title: 'Number of Tickets'
}
};
var chart = new google.visualization.ComboChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
