JavaScript Real-time Map Dashboard

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 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

Example on using MapChart with real-time animated data set and dynamic region coloring.

The data set is downloaded with fetch when the application is started. It contains population for each country in Europe, North and South America in the year range between 1961-2019.

The dashboard contains 3 charts (for each region) and 1 cell with UI panel. The UI panel contains interactive slider that can set a data period and year marker that can pause and start animation.

Every time the active year is changed, map regions data is quickly invalidated in real-time with the 'invalidateRegionValues' method

// Code snippet setting region values for all 3 map charts.
let year = 2005

const regionValuesData = populationData.map((item) => ({
    ISO_A3: item['Country Code'],
    value: item[year],
}))

chartEurope.invalidateRegionValues(regionValuesData)
chartSA.invalidateRegionValues(regionValuesData)
chartNA.invalidateRegionValues(regionValuesData)

More map examples:

• Data visualization over LightningChart JS Map Charts
• Data visualization over Google Maps
• LightningChart JS Map Charts with Drill-down
• Data visualization over static map picture

(!) Using Dashboard is no longer recommended for new applications. Find latest recommendations here: https://lightningchart.com/js-charts/docs/basic-topics/grouping-charts/

API Links

• Dashboard
• Map chart
• Map types
• Color look up table
• Paletted fill style
• Color factory RGBA
• UI element builders
• UI layout builders
• Legend box builders

Support

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 sales@lightningchart.com.

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