100% stacked area chart
Using calculated values for series
In amCharts 4, Series can be drawn from a variety of auto-calculated values, not necessarily the absolute ones.
In this case, we are setting valueYShow data field to "totalPercent" which is an auto-calculated value, producing a 100% stack chart.
More info about 100% stacks and “show” data fields
HTML tooltips
When displaying a lot of rich information in a tooltip, sometimes SVG is not enough. In those cases, like in this demo, we can opt for an HTML-enabled tooltip, setting tooltipHTML.
Demo source
<!-- Styles -->
<style>
#chartdiv {
width: 100%;
height: 500px;
}
</style>
<!-- Resources -->
<script src="https://cdn.amcharts.com/lib/4/core.js"></script>
<script src="https://cdn.amcharts.com/lib/4/charts.js"></script>
<script src="https://cdn.amcharts.com/lib/4/themes/animated.js"></script>
<!-- Chart code -->
<script>
am4core.ready(function() {
// Themes begin
am4core.useTheme(am4themes_animated);
// Themes end
// Create chart instance
var chart = am4core.create("chartdiv", am4charts.XYChart);
chart.colors.step = 2;
// Add data
chart.data = [{
"year": "1995",
"cars": 1567,
"motorcycles": 683,
"bicycles": 146
}, {
"year": "1996",
"cars": 1617,
"motorcycles": 691,
"bicycles": 138
}, {
"year": "1997",
"cars": 1630,
"motorcycles": 642,
"bicycles": 127
}, {
"year": "1998",
"cars": 1660,
"motorcycles": 699,
"bicycles": 105
}, {
"year": "1999",
"cars": 1683,
"motorcycles": 721,
"bicycles": 109
}, {
"year": "2000",
"cars": 1691,
"motorcycles": 737,
"bicycles": 112
}, {
"year": "2001",
"cars": 1298,
"motorcycles": 680,
"bicycles": 101
}, {
"year": "2002",
"cars": 1275,
"motorcycles": 664,
"bicycles": 97
}, {
"year": "2003",
"cars": 1246,
"motorcycles": 648,
"bicycles": 93
}, {
"year": "2004",
"cars": 1218,
"motorcycles": 637,
"bicycles": 101
}, {
"year": "2005",
"cars": 1213,
"motorcycles": 633,
"bicycles": 87
}, {
"year": "2006",
"cars": 1199,
"motorcycles": 621,
"bicycles": 79
}, {
"year": "2007",
"cars": 1110,
"motorcycles": 210,
"bicycles": 81
}, {
"year": "2008",
"cars": 1165,
"motorcycles": 232,
"bicycles": 75
}, {
"year": "2009",
"cars": 1145,
"motorcycles": 219,
"bicycles": 88
}, {
"year": "2010",
"cars": 1163,
"motorcycles": 201,
"bicycles": 82
}, {
"year": "2011",
"cars": 1180,
"motorcycles": 285,
"bicycles": 87
}, {
"year": "2012",
"cars": 1159,
"motorcycles": 277,
"bicycles": 71
}];
// Create axes
var categoryAxis = chart.xAxes.push(new am4charts.CategoryAxis());
categoryAxis.dataFields.category = "year";
categoryAxis.title.text = "Year";
categoryAxis.renderer.grid.template.location = 0;
categoryAxis.renderer.minGridDistance = 20;
categoryAxis.startLocation = 0.5;
categoryAxis.endLocation = 0.5;
var valueAxis = chart.yAxes.push(new am4charts.ValueAxis());
valueAxis.title.text = "Percent";
valueAxis.calculateTotals = true;
valueAxis.min = 0;
valueAxis.max = 100;
valueAxis.strictMinMax = true;
valueAxis.renderer.labels.template.adapter.add("text", function(text) {
return text + "%";
});
// Create series
var series = chart.series.push(new am4charts.LineSeries());
series.dataFields.valueY = "cars";
series.dataFields.valueYShow = "totalPercent";
series.dataFields.categoryX = "year";
series.name = "Cars";
series.tooltipHTML = "<img src='https://www.amcharts.com/lib/3/images/car.png' style='vertical-align:bottom; margin-right: 10px; width:28px; height:21px;'><span style='font-size:14px; color:#000000;'><b>{valueY.value}</b></span>";
series.tooltip.getFillFromObject = false;
series.tooltip.background.fill = am4core.color("#FFF");
series.tooltip.getStrokeFromObject = true;
series.tooltip.background.strokeWidth = 3;
series.fillOpacity = 0.85;
series.stacked = true;
// static
series.legendSettings.labelText = "Cars total:";
series.legendSettings.valueText = "{valueY.close}";
// hovering
series.legendSettings.itemLabelText = "Cars:";
series.legendSettings.itemValueText = "{valueY}";
var series2 = chart.series.push(new am4charts.LineSeries());
series2.dataFields.valueY = "motorcycles";
series2.dataFields.valueYShow = "totalPercent";
series2.dataFields.categoryX = "year";
series2.name = "Motorcycles";
series2.tooltipHTML = "<img src='https://www.amcharts.com/lib/3/images/motorcycle.png' style='vertical-align:bottom; margin-right: 10px; width:28px; height:21px;'><span style='font-size:14px; color:#000000;'><b>{valueY.value}</b></span>";
series2.tooltip.getFillFromObject = false;
series2.tooltip.background.fill = am4core.color("#FFF");
series2.tooltip.getStrokeFromObject = true;
series2.tooltip.background.strokeWidth = 3;
series2.fillOpacity = 0.85;
series2.stacked = true;
// static
series2.legendSettings.labelText = "Motorcycles total:";
series2.legendSettings.valueText = "{valueY.close}";
// hovering
series2.legendSettings.itemLabelText = "Motorcycles:";
series2.legendSettings.itemValueText = "{valueY}";
var series3 = chart.series.push(new am4charts.LineSeries());
series3.dataFields.valueY = "bicycles";
series3.dataFields.valueYShow = "totalPercent";
series3.dataFields.categoryX = "year";
series3.name = "Bicycles";
series3.tooltipText = "{name}: [bold]{valueY}[/]";
series3.tooltipHTML = "<img src='https://www.amcharts.com/lib/3/images/bicycle.png' style='vertical-align:bottom; margin-right: 10px; width:28px; height:21px;'><span style='font-size:14px; color:#000000;'><b>{valueY.value}</b></span>";
series3.tooltip.getFillFromObject = false;
series3.tooltip.background.fill = am4core.color("#FFF");
series3.tooltip.getStrokeFromObject = true;
series3.tooltip.background.strokeWidth = 3;
series3.fillOpacity = 0.85;
series3.stacked = true;
// static
series3.legendSettings.labelText = "Bicycles total:";
series3.legendSettings.valueText = "{valueY.close}";
// hovering
series3.legendSettings.itemLabelText = "Bicycles:";
series3.legendSettings.itemValueText = "{valueY}";
// Add cursor
chart.cursor = new am4charts.XYCursor();
// add legend
chart.legend = new am4charts.Legend();
}); // end am4core.ready()
</script>
<!-- HTML -->
<div id="chartdiv"></div>