Getting started in EJ2 TypeScript Bullet chart control
3 Nov 202314 minutes to read
This section explains how to create a simple Bullet chart and configure its available functionalities in TypeScript using Essential JS 2 quickstart seed repository.
This application is integrated with the
webpack.config.js
configuration and uses the latest version of the webpack-cli. It requires nodev14.15.0
or higher. For more information about webpack and its features, refer to the webpack documentation.
Dependencies
Below is the list of minimum dependencies required to use the Bullet Chart.
|-- @syncfusion/ej2-charts
|-- @syncfusion/ej2-base
|-- @syncfusion/ej2-data
|-- @syncfusion/ej2-pdf-export
|-- @syncfusion/ej2-file-utils
|-- @syncfusion/ej2-compression
|-- @syncfusion/ej2-svg-base
Set up development environment
Open the command prompt from the required directory, and run the following command to clone the Syncfusion JavaScript (Essential JS 2) quickstart project from GitHub.
git clone https://github.com/SyncfusionExamples/ej2-quickstart-webpack- ej2-quickstart
After cloning the application in the ej2-quickstart
folder, run the following command line to navigate to the ej2-quickstart
folder.
cd ej2-quickstart
Add Syncfusion JavaScript packages
Syncfusion JavaScript (Essential JS 2) packages are available on the npmjs.com public registry. You can install all Syncfusion JavaScript (Essential JS 2) controls in a single @syncfusion/ej2 package or individual packages for each control.
The quickstart application is preconfigured with the dependent @syncfusion/ej2 package in the ~/package.json
file. Use the following command to install the dependent npm packages from the command prompt.
npm install
Add Bullet Chart to the Project
Open the application in Visual Studio Code and add the Syncfusion JavaScript UI controls.
Add the HTML div tag with its id
attribute as element
in your ~/src/index.html
file to initialize the Bullet chart.
<!DOCTYPE html>
<html lang="en">
<head>
<title>EJ2 Bullet Chart</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" />
....
....
</head>
<body>
<!--container which is going to render the Bullet Chart-->
<div id='element'>
</div>
</body>
</html>
Now import the Bullet Chart component into your app.ts
to instantiate a bullet chart and append the bullet chart instance to the #element
[src/app/app.ts]
import { BulletChart } from '@syncfusion/ej2-charts';
// initialize BulletChart component
let bulletChart: BulletChart = new BulletChart();
// render initialized Bullet Chart
bulletChart.appendTo('#element');
Now use the npm run start
command to run the application in the browser.
npm run start
The below example shows a basic Chart.
import { BulletChart } from '@syncfusion/ej2-charts';
let bulletChart: BulletChart = new BulletChart();
bulletChart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bullet Chart</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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id='loader'>Loading....</div>
<div id='container'>
<div id='element'></div>
</div>
</body>
</html>
Module Injection
Bullet Chart component are segregated into individual feature-wise modules. In order to use a particular feature, you need to inject its feature module using BulletChart.Inject()
method. In the current application,we are going to use tooltip feature of the chart.
-
BulletTooltip
- Inject this provider to use tooltip feature.
Now import the above mentioned modules from Bullet Chart package and inject it into the Bullet Chart component using BulletChart.Inject
method.
import { BulletChart, BulletTooltip } from '@syncfusion/ej2-charts';
BulletChart.Inject(BulletTooltip);
BulletChart With Data
This section explains how to plot local data to the Bullet Chart.
let data: any[] = [
{ value: 100, target: 80 },
{ value: 200, target: 180 },
{ value: 300, target: 280 },
{ value: 400, target: 380 },
{ value: 500, target: 480 },
];
Now assign the local data to dataSource
property. value
and target
values should be mapped with valueName
and targetName
respectively.
import { BulletChart } from '@syncfusion/ej2-charts';
let bulletChart: BulletChart = new BulletChart({
dataSource: [{ value: 100, target: 80 },
{ value: 200, target: 180 },
{ value: 300, target: 280 },
{ value: 400, target: 380 },
{ value: 500, target: 480 }],
valueName: 'value',
targetName: 'target',
height: '300',
minimum: 0, maximum: 300, interval: 50,
});
bulletChart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bullet Chart</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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id='loader'>Loading....</div>
<div id='container'>
<div id='element'></div>
</div>
</body>
</html>
Add Bullet Chart Title
You can add a title using title
property to the Bullet Chart to provide quick information to the user about the data plotted in the Bullet Chart.
import { BulletChart } from '@syncfusion/ej2-charts';
let bulletChart: BulletChart = new BulletChart({
dataSource: [{ value: 270, target: 250 },],
valueName: 'value',
targetName: 'target',
title: 'Revenue',
minimum: 0, maximum: 300, interval: 50,
});
bulletChart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bullet Chart</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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id='loader'>Loading....</div>
<div id='container'>
<div id='element'></div>
</div>
</body>
</html>
Ranges
You can add a range using ranges
property to the Bullet Chart.
import { BulletChart } from '@syncfusion/ej2-charts';
let bulletChart: BulletChart = new BulletChart({
dataSource: [{ value: 270, target: 250 },],
valueName: 'value',
targetName: 'target',
title: 'Revenue',
minimum: 0, maximum: 300, interval: 50,
ranges: [{ end: 100, color: 'red' },
{ end: 200, color: 'blue' },
{ end: 300, color: 'green' }
],
});
bulletChart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bullet Chart</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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id='loader'>Loading....</div>
<div id='container'>
<div id='element'></div>
</div>
</body>
</html>
Tooltip
You can use tooltip for the Bullet Chart by setting the enable
property to true in tooltip
object and by injecting the BulletTooltip
module using BulletChart.Inject(BulletTooltip)
method.
import { BulletChart, BulletTooltip } from '@syncfusion/ej2-charts';
BulletChart.Inject(BulletTooltip);
let bulletChart: BulletChart = new BulletChart({
tooltip: { enable: true },
dataSource: [{ value: 70, target: 50 }],
valueField: 'value',
targetField: 'target',
animation: { enable: false },
ranges: [{ end: 30, color: '#599C20' },
{ end: 60, color: '#EFC820' },
{ end: 100, color: '#CA4218' }
],
minimum: 0, maximum: 100, interval: 10,
title: 'Revenue YTD'
});
bulletChart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bullet Chart</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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id='loader'>Loading....</div>
<div id='container'>
<div id='element'></div>
</div>
</body>
</html>