public void TestCCWPolygon()
        {
            var coords = TestData.GetCCWPolygon(1);
            var poly = new VTPolygon(coords);

            // act
            var ccw = poly.IsCCW();

            // assert
            Assert.IsTrue(poly.SignedArea() > 0);
            Assert.IsTrue(ccw);
        }
        public void TestCCWPolygon()
        {
            var coords = TestData.GetCCWPolygon(1);
            var poly   = new VTPolygon(coords);

            // act
            var ccw = poly.IsCCW();

            // assert
            Assert.IsTrue(poly.SignedArea() > 0);
            Assert.IsTrue(ccw);
        }