public void Point() { var myCurve = new CubicBezierCurve2D( new Vector2(-4, -4), new Vector2(-2, 4), new Vector2(2, -4), new Vector2(4, 4) ); myCurve.Point(0.5f).Should().BeEquivalentTo(new Vector2(0, 0)); myCurve.Point(0.25f).Should().BeEquivalentTo(new Vector2(-2.1875f, -0.5f)); myCurve.Point(0.75f).Should().BeEquivalentTo(new Vector2(2.1875f, 0.5f)); myCurve.Invoking(x => x.Point(1.5f)).Should().Throw <ArgumentException>(); }
public void PointNormalized() { var p0 = new Vector2(-4, -4); var p1 = new Vector2(-2, 4); var p2 = new Vector2(2, -4); var p3 = new Vector2(4, 4); CubicBezierCurve2D.Point(p0, p1, p2, p3, 3, 2, 4).Should().BeEquivalentTo(new Vector2(0, 0)); CubicBezierCurve2D.Point(p0, p1, p2, p3, 2, 1, 5).Should().BeEquivalentTo(new Vector2(-2.1875f, -0.5f)); CubicBezierCurve2D.Point(p0, p1, p2, p3, 11, 2, 14).Should().BeEquivalentTo(new Vector2(2.1875f, 0.5f)); Action invalidTime = () => CubicBezierCurve2D.Point(p0, p1, p2, p3, 15, 2, 5); invalidTime.Should().Throw <ArgumentException>(); }