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    @nitra/gtran-kml

    1.4.1 • Public • Published

    gtran-kml

    Convert geojson to kml file and backwards.

    This is a fork of gtran with folder support.

    Installation

    npm install @nitra/gtran-kml

    Functions

    • fromGeoJson(geojson, fileName, options)

      Save the geojson into the given file name.

      Since 1.1.11, it also supports Mapbox's simplestyle-spec.

      options:

      • documentName - Specify the name of the full document. The Default value is 'My KML'.

      • documentDescription - Specify the description of the full document. The Default value is 'Converted from GeoJson by gtran-kml'.

      • name - Specify the feature name using a geojson property. The Default value is 'name'.

      • featureStyleKey - Specify the xml style key in the xml feature properties.

      • symbol - Specify feature Symbol. It accepts an symbol object or a function to return the symbol per feature.

        Supported styles:

        • Point

          • color - HTML color code or array of RGB values, indicating feature color.

          • alpha - An integer value (0-255), indicating the color opacity

          • scale - Feature size, a float number.

          • icon - Link of feature icons. Some generally used icons can be found here.

        • LineString

          • color - HTML color code or array of RGB values, indicating feature color.

          • alpha - An integer value (0-255), indicating the color opacity

          • width - A float value, indicating line width.

        • Polygon

          • color - HTML color code or array of RGB values, indicating feature color.

          • alpha - An integer value (0-255), indicating the color opacity

          • fill - A boolean value, indicating whether to fill the polygon.

          • outline - A boolean value, indicating whether to outline the polygon.

      See the detail explaination at KML format reference.

    • toGeoJson(fileName)

      Read the given file into geojson.

    Use Example

    const kml = require('gtran-kml');
    
    // Specify promise library if necessary
    kml.setPromiseLib(require('bluebird'));
    
    // Read KML file
    kml
      .toGeoJson('source.kml')
      .then((object) {
        const geojson = object;
      });
    
    const geojson = {
      'type': 'FeatureCollection',
      'features': [{
        'type': 'Feature',
        'geometry': {"type":"Point","coordinates":[-70.2532459795475,43.6399758607149]},
        'properties': {
          'id': 1,
          'Name': 'test'
        }
      }]
    };
    
    // Define a symbol for all features in the layer
    const pointSymbol = {
      color: '#2dcd86',
      alpha: 255,
      scale: 1,
      icon: 'http://maps.google.com/mapfiles/kml/shapes/square.png'
    };
    
    // Save geojson into KML file
    kml.fromGeoJson(geojson, 'point.kml', {
      symbol: pointSymbol,
      name: 'Name'
    })
    
    // Define a symbol for each individual feature
    kml.fromGeoJson(geojson, 'point.kml', {
      symbol: (feature) => {
        return {
          color: '#2dcd86',
          alpha: 255 * Math.random(),
          scale: 1,
          icon: 'http://maps.google.com/mapfiles/kml/shapes/square.png'
        }
      },
      name: 'Name'
    })

    Install

    npm i @nitra/gtran-kml

    DownloadsWeekly Downloads

    3

    Version

    1.4.1

    License

    MIT

    Unpacked Size

    28.7 kB

    Total Files

    14

    Last publish

    Collaborators

    • vitaliytv