Tooltip in EJ2 JavaScript 3D Circular Chart control

19 Mar 202422 minutes to read

The 3D Circular Chart will display details about the points through a tooltip, when the mouse is moved over a specific point. By default, the tooltip is not visible. It can be enabled by using the enable property in tooltip to true.

var circularchart = new ej.charts.CircularChart3D({
    series: [
        {
            dataSource: [
                { x: 'Jan', y: 13 }, 
                { x: 'Feb', y: 13 },
                { x: 'Mar', y: 17 }, 
                { x: 'Apr', y: 13.5 }
            ],
            xName: 'x',
            yName: 'y'
        }
    ],
    tilt: -45,
    tooltip: { enable: true },
    legendSettings: {
        visible: false
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

To use tooltip feature, inject the CircularChartTooltip3D using the CircularChart3D.Inject(CircularChartTooltip3D) method.

You can specify a header for the tooltip by using the header property in tooltip.

var circularchart = new ej.charts.CircularChart3D({
    series: [
        {
            dataSource: [
                { x: 'Jan', y: 13 }, 
                { x: 'Feb', y: 13 },
                { x: 'Mar', y: 17 }, 
                { x: 'Apr', y: 13.5 }
            ],
            xName: 'x',
            yName: 'y'
        }
    ],
    tilt: -45,
    tooltip: { enable: true, header: 'Pie Chart' },
    legendSettings: {
        visible: false
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Format

By default, the tooltip shows information about the x and y values in points. Additionally, more information can be displayed in the tooltip by using the format property. For example, the format ${series.name} : ${point.x} shows the series name and the point’s x value.

var circularchart = new ej.charts.CircularChart3D({
    series: [
        {
            dataSource: [
                { x: 'Jan', y: 13 }, 
                { x: 'Feb', y: 13 },
                { x: 'Mar', y: 17 }, 
                { x: 'Apr', y: 13.5 }
            ],
            xName: 'x',
            yName: 'y'
        }
    ],
    tilt: -45,
    tooltip: { enable: true, format: '${point.x} : <b>${point.y}%</b>' },
    legendSettings: {
        visible: false
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Tooltip template

Any HTML elements can be displayed in the tooltip by using the template property in the tooltip.

var circularchart = new ej.charts.CircularChart3D({
    series: [
        {
            dataSource: [
                { x: 'Jan', y: 13 }, 
                { x: 'Feb', y: 13 },
                { x: 'Mar', y: 17 }, 
                { x: 'Apr', y: 13.5 }
            ],
            xName: 'x',
            yName: 'y'
        }
    ],
    tilt: -45,
    tooltip: { 
        enable: true,
        template:  "<div id='templateWrap' style='background-color:#bd18f9;border-radius: 3px; float: right;padding: 2px;line-height: 20px;text-align: center;'>"+
        "<img src='https://ej2.syncfusion.com/demos/src/chart/images/sunny.png' />" +
        "<div style='color:white; font-family:Roboto; font-style: medium; fontp-size:14px;float: right;padding: 2px;line-height: 20px;text-align: center;padding-right:6px'><span>${y}</span></div></div>"
    },
    legendSettings: {
        visible: false
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Fixed tooltip

By default, the tooltip tracks the mouse movement, but it can be set to a fixed position using the location property in tooltip.

var circularchart = new ej.charts.CircularChart3D({
    series: [
        {
            dataSource: [
                { x: 'Jan', y: 13 }, 
                { x: 'Feb', y: 13 },
                { x: 'Mar', y: 17 }, 
                { x: 'Apr', y: 13.5 }
            ],
            xName: 'x',
            yName: 'y'
        }
    ],
    tilt: -45,
    tooltip: { enable: true, location: { x: 200, y: 20 } },
    legendSettings: {
        visible: false
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Customization

The fill and border properties are used to customize the background color and border of the tooltip, respectively. The textStyle property in the tooltip is used to customize the font of the tooltip text. Additionally, the highlightColor property can be used to change the color of the data point when hovering.

var circularchart = new ej.charts.CircularChart3D({
    series: [
        {
            dataSource: [
                { x: 'Jan', y: 13 }, 
                { x: 'Feb', y: 13 },
                { x: 'Mar', y: 17 }, 
                { x: 'Apr', y: 13.5 }
            ],
            xName: 'x',
            yName: 'y'
        }
    ],
    tilt: -45,
    tooltip: { 
        enable: true,
        format: '${series.name} ${point.x} : ${point.y}',
        fill: '#7bb4eb',
        border: {
            width: 2,
            color: 'grey'
        }
    },
    highlightColor: 'red',
    highlightMode: 'Point',
    legendSettings: {
        visible: false
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Customization of individual tooltip

Using the tooltipRender event, you can customize tooltip values for a particular point.

var circularchart = new ej.charts.CircularChart3D({
    series: [
        {
            dataSource: [
                { x: 'Jan', y: 13 }, 
                { x: 'Feb', y: 13 },
                { x: 'Mar', y: 17 }, 
                { x: 'Apr', y: 13.5 }
            ],
            xName: 'x',
            yName: 'y'
        }
    ],
    tilt: -45,
    tooltip: { enable: true },
    legendSettings: {
        visible: false
    },
    tooltipRender: (args) => {
        if (args.point.index === 3) {
            args.text = args.point.x + '' + ':' + args.point.y + '' + ' ' +'customtext';
            args.textStyle.color = '#f48042';
        }
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/33.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>