Highcharts Line Chart with Markers
The following example demonstrates a line chart with markers.
We have already learned about Highcharts configuration syntax in the previous chapters. Now, let's see how to configure it.
Configuration
We use the marker.symbol property to configure markers. Markers can be 'square', 'diamond', or an image URL. Markers can be added to any data point:
var series= [{
name: 'Tokyo',
marker: {
symbol: 'square'
},
data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, {
y: 26.5,
marker: {
symbol: 'url(http://www.highcharts.com/demo/gfx/sun.png)'
}
}, 23.3, 18.3, 13.9, 9.6]
}, {
name: 'London',
marker: {
symbol: 'diamond'
},
data: [{
y: 3.9,
marker: {
symbol: 'url(http://www.highcharts.com/demo/gfx/snow.png)'
}
}, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
}
];
Example
Filename: highcharts_spline_symbols.htm
<html>
<head>
<meta charset="UTF-8" />
<title>Highcharts Tutorial | tutorialpro.org(tutorialpro.org)</title>
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script language="JavaScript">
$(document).ready(function() {
var chart = {
type: 'spline'
};
var title = {
text: 'Monthly Average Temperature'
};
var subtitle = {
text: 'Source: WorldClimate.com'
};
var xAxis = {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
};
var yAxis = {
title: {
text: 'Temperature'
},
labels: {
formatter: function () {
return this.value + '\xB0';
}
},
lineWidth: 2
};
var tooltip = {
crosshairs: true,
shared: true
};
var plotOptions = {
spline: {
marker: {
radius: 4,
lineColor: '#666666',
lineWidth: 1
}
}
};
var series= [{
name: 'Tokyo',
marker: {
symbol: 'square'
},
data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, {
y: 26.5,
marker: {
symbol: 'url(http://www.highcharts.com/demo/gfx/sun.png)'
}
}, 23.3, 18.3, 13.9, 9.6]
}, {
name: 'London',
marker: {
symbol: 'diamond'
},
data: [{
y: 3.9,
marker: {
symbol: 'url(http://www.highcharts.com/demo/gfx/snow.png)'
}
}, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
}
];
var json = {};
json.chart = chart;
json.title = title;
json.subtitle = subtitle;
json.tooltip = tooltip;
json.xAxis = xAxis;
json.yAxis = yAxis;
json.series = series;
json.plotOptions = plotOptions;
$('#container').highcharts(json);
});
</script>
</body>
</html>
The above example will output the following result: