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https://github.com/arction/lcjs-example-0200-candlesticks

A demo application showcasing LightningChart JS Candlestick chart.
https://github.com/arction/lcjs-example-0200-candlesticks

candlestick-chart charting-library demo example javascript lcjs lightningchart-js perfromance visualization webgl xy-chart

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A demo application showcasing LightningChart JS Candlestick chart.

Host: GitHub
URL: https://github.com/arction/lcjs-example-0200-candlesticks
Owner: Arction
License: mit
Created: 2019-08-05T10:08:30.000Z (over 5 years ago)
Default Branch: master
Last Pushed: 2024-08-05T07:12:38.000Z (4 months ago)
Last Synced: 2024-08-06T08:09:23.607Z (3 months ago)
Topics: candlestick-chart, charting-library, demo, example, javascript, lcjs, lightningchart-js, perfromance, visualization, webgl, xy-chart
Language: JavaScript
Homepage: https://www.arction.com/lightningchart-js-interactive-examples/examples/lcjs-example-0200-candlesticks.html
Size: 10 MB
Stars: 6
Watchers: 5
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

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README

# JavaScript Candlestick Chart

![JavaScript Candlestick Chart](candleSticks-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 Japanese Candlestick Chart_

**Please note that using LightningChart JS for Trading use cases requires a special license agreement.**
For more information, please [contact us](https://lightningchart.com/contact/).

This example shows basic implementation of candlestick chart using OHLCSeries. This type of chart is used as a trading tool to visualize price movements. A candlestick figure can represent multiple recorded values, which are packed into 4 values (open, high, low and close). This makes it useful for dynamically displaying data from longer intervals as well as shorter.

OHLCSeries are created using ChartXY method.

```javascript
const chart = lightningChart().ChartXY()
// Method for adding OHLCSeries takes one argument: seriesConstructor.
const ohlcSeries = chart.addOHLCSeries(
// Specify type of figure used
{ seriesConstructor: OHLCFigures.Candlestick },
)
```

OHLCSeries accept data in the form of interface 'XOHLC':

```javascript
const xohlc = [
// X-position
0,
// Opening Y-value
100,
// Highest Y-value
200,
// Lowest Y-value
50,
// Closing Y-value
75,
]
// Add new segment to series.
ohlcSeries.add(xohlc)
```

add() can be called with a single XOHLC-object or with an array of them.

## Anatomy of a candlestick figure

Candlesticks are formed from two parts: _Body_ and *Line*s. Both of these can be individually styled.

[//]: # 'IMPORTANT: The assets will not show before README.md is built - relative path is different!'

![](./assets/candlestick.png)

## API Links

* [XY cartesian chart]
* [Axis tick strategies]
* [Figure types]
* [OHLC series]
* [XOHLC datastructure]
* [OHLC generator]

## 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
[Axis tick strategies]: https://lightningchart.com/js-charts/api-documentation/v6.1.0/variables/AxisTickStrategies.html
[Figure types]: https://lightningchart.com/js-charts/api-documentation/v6.1.0/variables/OHLCFigures.html
[OHLC series]: https://lightningchart.com/js-charts/api-documentation/v6.1.0/classes/ChartXY.html#addOHLCSeries
[XOHLC datastructure]: https://lightningchart.com/js-charts/api-documentation/v6.1.0/types/XOHLC.html
[OHLC generator]: https://arction.github.io/xydata/classes/ohlcgenerator.html