Display Series Labels above the Bars in Stacked Bar Charts
Environment
| Product | Progress® Kendo UI® for jQuery Chart |
Description
How can I display series labels above the bars in the Stacked Bar Chart component?
Solution
To achieve the desired scenario, utilize the series.labels.visual property for the secondly declared series. Obtain the data from both series and render it by using the Kendo UI Drawing graphics library (Drawing API).
<div id="chart"></div>
<script>
var index = 0,
goldData=[];
$("#chart").kendoChart({
legend: {
visible: false
},
seriesDefaults: {
type: "bar",
stack: true
},
series: [{
name: "Gold Medals",
data: [40, 32, 34, 36, 45, 33, 34, 83, 36, 37, 44, 37, 35, 36, 46],
color: "#f3ac32",
}, {
name: "Silver Medals",
data: [19, 25, 21, 26, 28, 31, 35, 60, 31, 34, 32, 24, 40, 38, 29],
color: "#b8b8b8",
labels: {
visible: true,
visual: function(e) {
if(e.sender) {
let goldDataLength = e.sender.options.series[0].data.length;
if(index < goldDataLength) {
//obtain the Gold Medals data from the chart options
var goldSeries = e.sender.options.series[0];
var goldText = goldSeries.data[index];
goldData.push(goldText);
index++;
} else {
goldText = goldData[index-goldDataLength];
index++;
}
}
var center = e.rect.center();
// https://docs.telerik.com/kendo-ui/api/javascript/drawing/text
return new kendo.drawing.Text(goldText + "/" + e.text, [center.x, e.rect.origin.y], {
fill: {
color: "black"
}
});
}
}
}],
categoryAxis: {
categories: [1952, 1956, 1960, 1964, 1968, 1972, 1976, 1984, 1988, 1992, 1996, 2000, 2004, 2008, 2012]
}
});
</script>