turf-random

turf-random

random

Generates random GeoJSON data, including Points and Polygons, for testing and experimentation.

Parameters

• type [String] type of features desired: 'points' or 'polygons' (optional, default 'point')
• count [Number] how many geometries should be generated. (optional, default 1)
• options Object options relevant to the feature desired. Can include:
  • options.bbox Array<number> a bounding box inside of which geometries are placed. In the case of Point features, they are guaranteed to be within this bounds, while Polygon features have their centroid within the bounds.
  • options.num_vertices [Number] options.vertices the number of vertices added to polygon features. (optional, default 10)
  • options.max_radial_length [Number] the total number of decimal degrees longitude or latitude that a polygon can extent outwards to from its center. (optional, default 10)

Examples

var points = turf.random('points', 100, {
  bbox: [-70, 40, -60, 60]
});

//=points

var polygons = turf.random('polygons', 4, {
  bbox: [-70, 40, -60, 60]
});

//=polygons

Returns FeatureCollection generated random features

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This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.

Installation

Install this module individually:

$ npm install turf-random

Or install the Turf module that includes it as a function:

$ npm install turf