Stacked Area Chart is formed by stacking multiple data-series, one on top of the other. The given example shows simple Stacked Area Chart along with PHP source code that you can try running locally.
<?php
$dataPoints1 = array(
array("label"=> "2007", "y"=> 2016456 ),
array("label"=> "2008", "y"=> 1985801 ),
array("label"=> "2009", "y"=> 1755904 ),
array("label"=> "2010", "y"=> 1847290 ),
array("label"=> "2011", "y"=> 1733430 ),
array("label"=> "2012", "y"=> 1514043 ),
array("label"=> "2013", "y"=> 1581115 ),
array("label"=> "2014", "y"=> 1581710 ),
array("label"=> "2015", "y"=> 1352398 ),
array("label"=> "2016", "y"=> 1239149 )
);
$dataPoints2 = array(
array("label"=> "2007", "y"=> 49505 ),
array("label"=> "2008", "y"=> 31917 ),
array("label"=> "2009", "y"=> 25972 ),
array("label"=> "2010", "y"=> 23337 ),
array("label"=> "2011", "y"=> 16086 ),
array("label"=> "2012", "y"=> 13403 ),
array("label"=> "2013", "y"=> 13820 ),
array("label"=> "2014", "y"=> 18276 ),
array("label"=> "2015", "y"=> 17372 ),
array("label"=> "2016", "y"=> 13008 )
);
$dataPoints3 = array(
array("label"=> "2007", "y"=> 896590 ),
array("label"=> "2008", "y"=> 882981 ),
array("label"=> "2009", "y"=> 920979 ),
array("label"=> "2010", "y"=> 987697 ),
array("label"=> "2011", "y"=> 1013689 ),
array("label"=> "2012", "y"=> 1225894 ),
array("label"=> "2013", "y"=> 1124836 ),
array("label"=> "2014", "y"=> 1126609 ),
array("label"=> "2015", "y"=> 1333482 ),
array("label"=> "2016", "y"=> 1378307 )
);
$dataPoints4 = array(
array("label"=> "2007", "y"=> 806425 ),
array("label"=> "2008", "y"=> 806208 ),
array("label"=> "2009", "y"=> 798855 ),
array("label"=> "2010", "y"=> 806968 ),
array("label"=> "2011", "y"=> 790204 ),
array("label"=> "2012", "y"=> 769331 ),
array("label"=> "2013", "y"=> 789016 ),
array("label"=> "2014", "y"=> 797166 ),
array("label"=> "2015", "y"=> 797178 ),
array("label"=> "2016", "y"=> 805694 )
);
$dataPoints5 = array(
array("label"=> "2007", "y"=> 247510 ),
array("label"=> "2008", "y"=> 254831 ),
array("label"=> "2009", "y"=> 273445 ),
array("label"=> "2010", "y"=> 260203 ),
array("label"=> "2011", "y"=> 319355 ),
array("label"=> "2012", "y"=> 276240 ),
array("label"=> "2013", "y"=> 268565 ),
array("label"=> "2014", "y"=> 259367 ),
array("label"=> "2015", "y"=> 249080 ),
array("label"=> "2016", "y"=> 267812 )
);
$dataPoints6 = array(
array("label"=> "2007", "y"=> 612 ),
array("label"=> "2008", "y"=> 864 ),
array("label"=> "2009", "y"=> 891 ),
array("label"=> "2010", "y"=> 1212 ),
array("label"=> "2011", "y"=> 1818 ),
array("label"=> "2012", "y"=> 4327 ),
array("label"=> "2013", "y"=> 9036 ),
array("label"=> "2014", "y"=> 17691 ),
array("label"=> "2015", "y"=> 24893 ),
array("label"=> "2016", "y"=> 36054 )
);
?>
<!DOCTYPE HTML>
<html>
<head>
<script>
window.onload = function () {
var chart = new CanvasJS.Chart("chartContainer", {
theme: "light2",
title: {
text: "Generation of Electricity in US - 2007 to 2016"
},
subtitles: [{
text: "In Gigawatt Hours"
}],
axisY: {
includeZero: false
},
legend:{
cursor: "pointer",
itemclick: toggleDataSeries
},
toolTip: {
shared: true
},
data: [{
type: "stackedArea",
name: "Coal",
showInLegend: true,
visible: false,
yValueFormatString: "#,##0 GWh",
dataPoints: <?php echo json_encode($dataPoints1, JSON_NUMERIC_CHECK); ?>
},
{
type: "stackedArea",
name: "Petroleum",
showInLegend: true,
yValueFormatString: "#,##0 GWh",
dataPoints: <?php echo json_encode($dataPoints2, JSON_NUMERIC_CHECK); ?>
},
{
type: "stackedArea",
name: "Natual Gas",
showInLegend: true,
visible: false,
yValueFormatString: "#,##0 GWh",
dataPoints: <?php echo json_encode($dataPoints3, JSON_NUMERIC_CHECK); ?>
},
{
type: "stackedArea",
name: "Nuclear",
showInLegend: true,
visible: false,
yValueFormatString: "#,##0 GWh",
dataPoints: <?php echo json_encode($dataPoints4, JSON_NUMERIC_CHECK); ?>
},
{
type: "stackedArea",
name: "Hydroelectric",
showInLegend: true,
visible: false,
yValueFormatString: "#,##0 GWh",
dataPoints: <?php echo json_encode($dataPoints5, JSON_NUMERIC_CHECK); ?>
},
{
type: "stackedArea",
name: "Solar",
showInLegend: true,
yValueFormatString: "#,##0 GWh",
dataPoints: <?php echo json_encode($dataPoints6, JSON_NUMERIC_CHECK); ?>
}]
});
chart.render();
function toggleDataSeries(e){
if (typeof(e.dataSeries.visible) === "undefined" || e.dataSeries.visible) {
e.dataSeries.visible = false;
}
else{
e.dataSeries.visible = true;
}
chart.render();
}
}
</script>
</head>
<body>
<div id="chartContainer" style="height: 370px; width: 100%;"></div>
<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
</body>
</html>
The border color and the border thickness of the markers can be customized using markerBorderColor and markerBorderThickness properties. Some other commonly used customization options include color, fillOpacity, etc.