Code to buffer a simple feature geometry (without JSTS dependancy!).

This code was branched from the old turf-buffer (now at @turf/buffer) and implements a geodesic buffer. The details are explained in this PR.

This code is not on npm. Therefore, you'll have to download this directory, name it turf-buffer and put it in the node_modules directory of you projected.

turf.buffer(feature, distance, unit)

Calculates a buffer for input features for a given radius. Units supported are miles, kilometers, and degrees.

var buffer = require('turf-buffer')

var pt = {
  "type": "Feature",
  "properties": {},
  "geometry": {
    "type": "Point",
    "coordinates": [-90.548630, 14.616599]
  }
};

var buffered = buffer(pt, 10, 'miles')

// result