public void SPSIn()
        {
            var segment = new SegmentSps("id", a => (160.0, 200));

            Assert.True(Math.Abs(149.7 - segment.Output(i => 5).T) < RoundingValue);
        }
        public void SPSMid()
        {
            var segment = new SegmentSps("id", a => (149.7, 200), a => (132.8, 250));

            Assert.True(Math.Abs(136.3 - segment.Output(i => 5).T) < RoundingValue);
        }