Labels in EJ2 JavaScript Range navigator control
8 May 202312 minutes to read
Multilevel labels
The labelIntersectAction
property is used to avoid overlapping of labels. The following code sample shows the setting of labelIntersectAction
property to Hide.
var data = [];
var value = 0; var point = {};
for (var j = 1; j < 1090; j++) {
value += (Math.random() * 10 - 5);
value = value < 0 ? Math.abs(value) : value;
point = { x: new Date(2000, 0, j), y: value, z: value + 10 };
data.push(point);
}
var range = new ej.charts.RangeNavigator({
labelPosition: 'Outside',
tooltip: { enable: true },
valueType: 'DateTime',
intervalType: 'Quarter',
enableGrouping: true,
value: [new Date(2001, 0), new Date(2002, 0)],
dataSource: data,
xName: 'x',
yName: 'y'
});
range.appendTo('#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/ej2/23.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container" style="margin-top: 125px">
<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>
Grouping
The second level axis labels can be grouped using “groupBy” property with the following interval types:
- Auto
- Years
- Quarter
- Months
- Weeks
- Days
- Hours
- Minutes
- Seconds
var data = [];
var value = 0; let point = {};
for (var j = 1; j < 1090; j++) {
value += (Math.random() * 10 - 5);
value = value < 0 ? Math.abs(value) : value;
point = { x: new Date(2000, 0, j), y: value, z: value + 10 };
data.push(point);
}
var range = new ej.charts.RangeNavigator({
labelPosition: 'Outside',
tooltip: { enable: true },
valueType: 'DateTime',
intervalType: 'Quarter',
enableGrouping: true,
groupBy: 'Years',
value: [new Date(2001, 0), new Date(2002, 0)],
dataSource: data,
xName: 'x',
yName: 'y'
});
range.appendTo('#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/ej2/23.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container" style="margin-top: 125px">
<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>
Smart labels
The labelIntersectAction
property is used to avoid overlapping of labels. The following code sample shows the setting of labelIntersectAction
property to Hide.
var range = new ej.charts.RangeNavigator({
valueType: 'DateTime',
labelIntersectAction: 'Hide',
labelFormat: 'y/M/d',
value: [new Date("2017-08-13"), new Date("2017-12-28")],
series: [{
dataSource: datasrc, xName: 'x', yName: 'y', type: 'StepLine', width: 2,
}],
});
range.appendTo('#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/ej2/23.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container" style="margin-top: 125px">
<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>
Label positioning
By default, the labels can be placed outside the Range Selector. It can also be placed inside the Range Selector using the labelPosition
property.
var range = new ej.charts.RangeNavigator({
valueType: 'DateTime',
labelPosition: 'Inside',
value: [new Date("2017-08-13"), new Date("2017-12-28")],
series: [{
dataSource: datasrc, xName: 'x', yName: 'y', type: 'StepLine', width: 2,
}],
});
range.appendTo('#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/ej2/23.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container" style="margin-top: 125px">
<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>
Labels customization
The font size, color, family, etc. can be customized using the labelStyle
setting.
var range = new ej.charts.RangeNavigator({
valueType: 'DateTime',
value: [new Date('2017-09-01'), new Date('2018-02-01')],
labelFormat: 'MMM-yy',
labelStyle: { color: 'red', size: '10px' },
series: [{
dataSource: datasrc, xName: 'x', yName: 'y', type: 'Area', width: 2,
}],
});
range.appendTo('#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/ej2/23.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container" style="margin-top: 125px">
<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>