jQuery Scatter Charts with Custom Markers

jQuery Scatter / Point Chart allows you to change the type of marker that is used to display data point. Changing the type of marker helps easier differentiation between data series / points. Given example shows Multi Series Scatter Chart where the type of marker for second series is changed to triangle. It also contains source code that you can edit in-browser or save to run locally.

Try Editing The Code

window.onload = function() {

var options = {
	animationEnabled: true,
	title: {
		text: "Server CPU Utilization vs Active Users"
	},
	axisX: {
		title: "Active Users"
	},
	axisY: {
		title: "CPU Utilization",
		suffix: "%"
	},
	legend: {
		cursor: "pointer",
		itemclick: toggleDataSeries
	},
	data: [{
		type: "scatter",
		name: "Server 1",
		showInLegend: true,
		toolTipContent: "<span style=\"color:#4F81BC \">{name}</span><br>Active Users: {x}<br>CPU Utilization: {y}%",
		dataPoints: [
			{ x: 100, y: 10 },
			{ x: 110, y: 15 },
			{ x: 130, y: 17 },
			{ x: 140, y: 19 },
			{ x: 145, y: 21 },
			{ x: 400, y: 25 },
			{ x: 430, y: 27 },
			{ x: 444, y: 30 },
			{ x: 460, y: 29 },
			{ x: 490, y: 35 },
			{ x: 500, y: 40 },
			{ x: 510, y: 50 },
			{ x: 600, y: 30 },
			{ x: 700, y: 35 },
			{ x: 800, y: 40 },
			{ x: 900, y: 45 },
			{ x: 1000, y: 47 },
			{ x: 1200, y: 55 },
			{ x: 1230, y: 51 },
			{ x: 1300, y: 60 },
			{ x: 1330, y: 65 },
			{ x: 1400, y: 70 },
			{ x: 1450, y: 71 },
			{ x: 1500, y: 69 },
			{ x: 1530, y: 75 },
			{ x: 1590, y: 79 },
			{ x: 1600, y: 62 },
			{ x: 1620, y: 80 },
			{ x: 1640, y: 85 },
			{ x: 1700, y: 81 },
			{ x: 1790, y: 89 },
			{ x: 1800, y: 91 },
			{ x: 1950, y: 93 },
			{ x: 1980, y: 88 },
			{ x: 2000, y: 90 }
		]
	},
	{
		type: "scatter",
		name: "Server 2",
		showInLegend: true,
		markerType: "triangle",
		toolTipContent: "<span style=\"color:#C0504E\">{name}</span><br>Active Users: {x}<br>CPU Utilization: {y}%",
		dataPoints: [
			{ x: 100, y: 25 },
			{ x: 110, y: 35 },
			{ x: 130, y: 35 },
			{ x: 140, y: 40 },
			{ x: 145, y: 45 },
			{ x: 400, y: 42 },
			{ x: 430, y: 32 },
			{ x: 444, y: 35 },
			{ x: 460, y: 43 },
			{ x: 490, y: 50 },
			{ x: 500, y: 57 },
			{ x: 510, y: 67 },
			{ x: 600, y: 40 },
			{ x: 700, y: 46 },
			{ x: 800, y: 50 },
			{ x: 900, y: 60 },
			{ x: 1000, y: 66 },
			{ x: 1200, y: 79 },
			{ x: 1230, y: 60 },
			{ x: 1300, y: 75 },
			{ x: 1330, y: 80 },
			{ x: 1400, y: 82 },
			{ x: 1450, y: 88 },
			{ x: 1500, y: 87 },
			{ x: 1530, y: 88 },
			{ x: 1590, y: 90 },
			{ x: 1600, y: 80 },
			{ x: 1620, y: 93 },
			{ x: 1640, y: 91 },
			{ x: 1700, y: 92 },
			{ x: 1790, y: 93 },
			{ x: 1800, y: 90 },
			{ x: 1950, y: 91 },
			{ x: 1980, y: 93 },
			{ x: 2000, y: 95 }
		]
	}]
};

$("#chartContainer").CanvasJSChart(options);

function toggleDataSeries(e) {
	if (typeof (e.dataSeries.visible) === "undefined" || e.dataSeries.visible) {
		e.dataSeries.visible = false;
	} else {
		e.dataSeries.visible = true;
	}
	e.chart.render();
}

}

Related Customization

You can customize the markers using markerType property. Some other frequently used customization options are markerBorderThickness, markerBorderColor, markerColor, etc.