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https://github.com/arction/lcjs-example-0100-arearange

A demo application showcasing LightningChart JS Area range chart
https://github.com/arction/lcjs-example-0100-arearange

area-chart area-range area-series demo example javascript lcjs lightningchart-js perfromance range-chart visualization webgl xy-chart

Last synced: about 10 hours ago
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A demo application showcasing LightningChart JS Area range chart

Host: GitHub
URL: https://github.com/arction/lcjs-example-0100-arearange
Owner: Arction
License: mit
Created: 2019-08-05T10:06:58.000Z (over 5 years ago)
Default Branch: master
Last Pushed: 2024-08-05T07:12:29.000Z (4 months ago)
Last Synced: 2024-08-06T08:09:22.265Z (3 months ago)
Topics: area-chart, area-range, area-series, demo, example, javascript, lcjs, lightningchart-js, perfromance, range-chart, visualization, webgl, xy-chart
Language: JavaScript
Homepage: https://www.arction.com/lightningchart-js-interactive-examples/examples/lcjs-example-0100-areaRange.html
Size: 10.5 MB
Stars: 0
Watchers: 4
Forks: 0
Open Issues: 1
Metadata Files:
- Readme: README.md
- License: LICENSE

Awesome Lists containing this project

README

# JavaScript Area Range Chart

![JavaScript Area Range Chart](areaRange-darkGold.png)

This demo application belongs to the set of examples for LightningChart JS, data visualization library for JavaScript.

LightningChart JS is entirely GPU accelerated and performance optimized charting library for presenting massive amounts of data. It offers an easy way of creating sophisticated and interactive charts and adding them to your website or web application.

The demo can be used as an example or a seed project. Local execution requires the following steps:

- Make sure that relevant version of [Node.js](https://nodejs.org/en/download/) is installed
- Open the project folder in a terminal:

npm install # fetches dependencies
npm start # builds an application and starts the development server

- The application is available at _http://localhost:8080_ in your browser, webpack-dev-server provides hot reload functionality.

## Description

_Also known as a Area Graph, Area Chart or Range Area Chart_

The example shows the basic usage of an Area Range series. The Range Area Chart is similar to the **_Area series_**, which is plotted by shading the area between a range of values ( high & low ) represented by two curves of data.

Range charts are generally used to show variations (low & high) simultaneously in the given period. Typical visualization applications use this type of graph shows temperature, price etc.

The series uses two fill styles, which can be configured individually, the identical behavior is applicable for borders:

- the normal fill is used when High is greater than Low
- the reversed fill is used when Low is greater than High

```javascript
// Create a new ChartXY.
const chart = lightningChart().ChartXY()

// Add an area series with bipolar direction using default X and Y axes.
const areaRange = chart.addAreaRangeSeries()
```

The series accepts **_AreaPoint_** type of points either as an object in format `{ position: number, high: number, low: number }`,

```javascript
series.add({ position: 20, high: 45, low: -20 })
```

or via a factory that should be additionally imported.

```javascript
series.add(AreaPoint(20, 45, -20))
```

Any number of points can be added with a single call.

```javascript
// Single point.
series.add({ position: 20, high: 45, low: -20 })

// Multiple points at once.
series.add([
{ position: 20, high: 45, low: -20 },
{ position: 40, high: 95, low: 10 },
{ position: 60, high: 25, low: 60 },
])
```

## API Links

* [XY cartesian chart]
* [Area point]
* [Area Range series]

## Support

If you notice an error in the example code, please open an issue on [GitHub][0] repository of the entire example.

Official [API documentation][1] can be found on [LightningChart][2] website.

If the docs and other materials do not solve your problem as well as implementation help is needed, ask on [StackOverflow][3] (tagged lightningchart).

If you think you found a bug in the LightningChart JavaScript library, please contact [email protected].

Direct developer email support can be purchased through a [Support Plan][4] or by contacting [email protected].

[0]: https://github.com/Arction/
[1]: https://lightningchart.com/lightningchart-js-api-documentation/
[2]: https://lightningchart.com
[3]: https://stackoverflow.com/questions/tagged/lightningchart
[4]: https://lightningchart.com/support-services/

[XY cartesian chart]: https://lightningchart.com/js-charts/api-documentation/v6.1.0/classes/ChartXY.html
[Area point]: https://lightningchart.com/js-charts/api-documentation/v6.1.0/interfaces/AreaPoint.html
[Area Range series]: https://lightningchart.com/js-charts/api-documentation/v6.1.0/classes/AreaRangeSeries.html