gtran-kml-data

Convert geojson to kml file and backwards.

This is a fork of gtran-kml.

Installation

npm install gtran-kml-data

Functions

• setPromiseLib(object)

  Specify the promise library. If not, the library will use the native Promise.

• fromGeoJson(geojson, fileName, options)

  Save the geojson into the given file name.

  options:

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

  • symbol - Symbol of saved features. 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.

• toGeoJsonData(data)

  Read the given data into geojson.

• toGeoJson(fileName)

  Read the given file into geojson.

Use Example

var kml = require('gtran-kml');

// Specify promise library if necessary
kml.setPromiseLib(require('bluebird'));

// Read KML file
kml.toGeoJson('source.kml')
.then(function(object) {
    var geojson = object;
});

var geojson = {
    'type': 'FeatureCollection',
    'features': [{
        'type': 'Feature',
        'geometry': {"type":"Point","coordinates":[-70.2532459795475,43.6399758607149]},
        'properties': {
          'id': 1,
          'Name': 'test'
        }
    }]
};

// Define feature symbol
var 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'
})
.then(function(fileName) {
    console.log('KML file has been saved at:' + fileName);
});