var calculateConvexHull = require('geo-convex-hull')
var points = [
{latitude: 55.678514,longitude: 37.857674},
{latitude: 55.64258,longitude: 38.009373},
{latitude: 55.64258,longitude: 38.009373},
{latitude: 55.621795,longitude: 38.002491},
{latitude: 55.655894,longitude: 37.925129},
{latitude: 55.66244,longitude: 37.956848},
{latitude: 55.656869,longitude: 37.962301},
{latitude: 55.657677,longitude: 37.948745},
{latitude: 55.662979,longitude: 37.953282},
{latitude: 55.66403,longitude: 37.902078},
{latitude: 55.669925,longitude: 37.907099},
{latitude: 55.676494,longitude: 37.898116},
{latitude: 55.678783,longitude: 37.894927},
{latitude: 55.680742,longitude: 37.89473},
{latitude: 55.672006,longitude: 37.881381},
{latitude: 55.678209,longitude: 37.886214},
{latitude: 55.679824,longitude: 37.884372},
{latitude: 55.679524,longitude: 37.877967},
{latitude: 55.68767,longitude: 37.871912},
{latitude: 55.703408,longitude: 37.839744},
]
var convexHull = calculateConvexHull(points);