public void Center()
        {
            var boxFC   = JsonConvert.DeserializeObject <FeatureCollection>(Tools.GetResource("center.box.geojson"));
            var blockFC = JsonConvert.DeserializeObject <FeatureCollection>(Tools.GetResource("center.block.geojson"));

            var boxFcCenter = Turf.Center(boxFC);

            boxFcCenter.Properties["marker-color"] = "#f0f";
            var boxFcCenterArray = Turf.GetCoord(boxFcCenter);

            Assert.AreEqual(boxFcCenterArray[0], 65.56640625, 0.00001);
            Assert.AreEqual(boxFcCenterArray[1], 43.59448261855401, 0.00001);

            var blockFcCenter = Turf.Center(blockFC.Features[0]);

            blockFcCenter.Properties["marker-color"] = "#f0f";
            var blockFcCenterArray = Turf.GetCoord(blockFcCenter);

            Assert.AreEqual(blockFcCenterArray[0], -114.02911397119072, 0.00001);
            Assert.AreEqual(blockFcCenterArray[1], 51.050271120392566, 0.00001);

            boxFC.Features.Add(boxFcCenter);
            blockFC.Features.Add(blockFcCenter);
            Console.WriteLine(JsonConvert.SerializeObject(boxFC));
            Console.WriteLine(JsonConvert.SerializeObject(blockFC));
        }