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:
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Make sure that relevant version of Node.js is installed
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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.
The examples purpose is to shed some light on the packing logic of OHLCSeriesWithAutomaticPacking and how it can be fit to users needs by usage of method: setPackingResolution.
This class is a variant of OHLCSeries, which adds the automatic packing of XY-points to XOHLC-points. In a nutshell, when pushing points, it simply packages these points into 'XOHLC'-objects at certain intervals (which is controlled by the packing resolution property).
By default, or if packing resolution is explicitly set to 'undefined', the used value will be automatically computed based on current pixel-size. This effectively means that any newly pushed points will never be able to be zoomed closer than the view at the time of packing.
To ensure that the figures can be zoomed up to desired details, users can set an explicit value for the packing resolution, which will specify the minimum interval (in axis values) between two fully zoomed figures.
- Axis tick strategies
- XY cartesian chart
- OHLC series types
- Series with automatic packing
- Progressive trace generator
If you notice an error in the example code, please open an issue on GitHub repository of the entire example.
Official API documentation can be found on LightningChart website.
If the docs and other materials do not solve your problem as well as implementation help is needed, ask on StackOverflow (tagged lightningchart).
If you think you found a bug in the LightningChart JavaScript library, please contact [email protected].
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