Area with Time Based Data
This demo shows you how to create a time-based area chart with amCharts 5.
Key implementation details
We create an XY chart with DateAxis
as its X axis. The base interval on it is set to minutes, as this is the type of data we have. We add a LineSeries
to the chart and set its fills.template
to visible so we get an area chart as a result.
Related tutorials
Demo source
<!-- Styles -->
<style>
#chartdiv {
width: 100%;
height: 500px;
}
</style>
<!-- Resources -->
<script src="https://cdn.amcharts.com/lib/5/index.js"></script>
<script src="https://cdn.amcharts.com/lib/5/xy.js"></script>
<script src="https://cdn.amcharts.com/lib/5/themes/Animated.js"></script>
<!-- Chart code -->
<script>
am5.ready(function() {
// Create root and chart
var root = am5.Root.new("chartdiv");
root.setThemes([
am5themes_Animated.new(root)
]);
var chart = root.container.children.push(am5xy.XYChart.new(root, {
panX: true,
panY: true,
wheelY: "zoomX",
layout: root.verticalLayout,
pinchZoomX: true
}));
// Create Y-axis
var yAxis = chart.yAxes.push(am5xy.ValueAxis.new(root, {
maxDeviation: 1,
renderer: am5xy.AxisRendererY.new(root, {
pan: "zoom"
})
}));
// Create X-Axis
var xAxis = chart.xAxes.push(am5xy.DateAxis.new(root, {
groupData: true,
maxDeviation: 0.5,
baseInterval: { timeUnit: "minute", count: 1 },
renderer: am5xy.AxisRendererX.new(root, {
minGridDistance: 60,
pan: "zoom",
minorGridEnabled: true
})
}));
// xAxis.get("dateFormats")["day"] = "MM/dd";
// xAxis.get("periodChangeDateFormats")["day"] = "MMMM";
// Generate random data
function generateChartData() {
var chartData = [];
// current date
var firstDate = new Date();
// now set 500 minutes back
firstDate.setMinutes(firstDate.getDate() - 500, 0, 0);
// and generate 500 data items
var visits = 500;
for (var i = 0; i < 500; i++) {
var newDate = new Date(firstDate);
// each time we add one minute
newDate.setMinutes(newDate.getMinutes() + i);
// some random number
visits += Math.round((Math.random() < 0.5 ? 1 : -1) * Math.random() * 10);
// add data item to the array
chartData.push({
date: newDate.getTime(),
visits: visits
});
}
return chartData;
}
var data = generateChartData();
// Create series
var series = chart.series.push(am5xy.LineSeries.new(root, {
name: "Series",
xAxis: xAxis,
yAxis: yAxis,
valueYField: "visits",
valueXField: "date",
tooltip: am5.Tooltip.new(root, {
pointerOrientation: "horizontal",
labelText: "[bold]{name}[/]\n{valueX.formatDate()}: {valueY}"
})
}));
series.strokes.template.set("strokeWidth", 2);
series.fills.template.setAll({
visible: true,
fillOpacity: 0.4
});
series.data.setAll(data);
// Pre-zoom X axis to last hour
series.events.once("datavalidated", function (ev, target) {
var lastDate = new Date(data[data.length - 1].date);
var firstDate = new Date(lastDate.getTime() - 3600000);
xAxis.zoomToDates(firstDate, lastDate);
})
// Add cursor
chart.set("cursor", am5xy.XYCursor.new(root, {
behavior: "none",
xAxis: xAxis
}));
xAxis.set("tooltip", am5.Tooltip.new(root, {}));
yAxis.set("tooltip", am5.Tooltip.new(root, {}));
var scrollbarX = am5xy.XYChartScrollbar.new(root, {
orientation: "horizontal",
height: 50
});
chart.set("scrollbarX", scrollbarX);
var sbxAxis = scrollbarX.chart.xAxes.push(am5xy.DateAxis.new(root, {
baseInterval: { timeUnit: "minute", count: 1 },
renderer: am5xy.AxisRendererX.new(root, {
opposite: false,
strokeOpacity: 0,
minorGridEnabled: true,
minGridDistance: 60
})
}));
var sbyAxis = scrollbarX.chart.yAxes.push(am5xy.ValueAxis.new(root, {
renderer: am5xy.AxisRendererY.new(root, {})
}));
var sbseries = scrollbarX.chart.series.push(am5xy.LineSeries.new(root, {
xAxis: sbxAxis,
yAxis: sbyAxis,
valueYField: "visits",
valueXField: "date"
}));
sbseries.data.setAll(data);
}); // end am5.ready()
</script>
<!-- HTML -->
<div id="chartdiv"></div>