@techandsoftware/teletext-plugin-smooth-mosaic

    0.1.7 • Public • Published

    This is a plugin for @techandsoftware/teletext, which uses a pixel art scaling algorithm to create a smooth rendition of teletext mosaic graphics. The scaling algorithm used is hqx.

    The following image shows a page from Ceefax with normal rendering and with smoothed graphics on the right: A Ceefax page with a map of the UK in teletext blocky format and with smoothed graphics

    Demo

    See https://teletextmoduledemo.tech-and-software.ltd.uk/ . Press 'p' or click the button marked with 'p' to load the plugin.

    See the docs directory in the repo for an SVG created with the plugin.

    Using

    ES6 module

    The easiest option is to use jsdelivr:

    const module = await import('https://cdn.jsdelivr.net/npm/@techandsoftware/teletext-plugin-smooth-mosaic@latest/dist/teletext-plugin-smooth-mosaic.min.js');
    
    // teletext is the @techandsoftware/teletext instance
    teletext.registerViewPlugin(module.SmoothMosaicPlugin);

    If installing from npm, you'll also need to use tooling like rollup to resolve the dependency for your browser.

    import { SmoothMosaicPlugin } from '@techandsoftware/teletext-plugin-smooth-mosaic';
    teletext.registerViewPlugin(SmoothMosaicPlugin);

    As the module is fairly large, you could import dynamically:

    const module = await import('@techandsoftware/teletext-plugin-smooth-mosaic');
    teletext.registerViewPlugin(module.SmoothMosaicPlugin);

    Non-ES6

    If you want to support browsers that can't use ES6 modules, a UMD version is also available in the dist directory for importing with <script>. It exports the module in the global ttxsmooth. It's likely you'll also need to transpile the code for your target browsers.

    Dependencies

    Credits

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      Install

      npm i @techandsoftware/teletext-plugin-smooth-mosaic

      DownloadsWeekly Downloads

      13

      Version

      0.1.7

      License

      (ISC OR LGPL-2.1-or-later)

      Unpacked Size

      344 kB

      Total Files

      7

      Last publish

      Collaborators

      • robhardy