public void Lofted_Surface_Throws_An_Exception_If_Curves_Count_Are_Less_Than_Two()
{
// Arrange
NurbsBase[] crvs = { NurbsCurveCollection.OpenCurves()[0] };
// Act
Func <NurbsSurface> func = () => NurbsSurface.FromLoft(crvs);
// Assert
func.Should().Throw <Exception>()
.WithMessage("An invalid number of curves to perform the loft.");
}
public void It_Returns_A_Normal_Lofted_Surface_By_Opened_Curves(double u, double v, double[] pt)
{
// Arrange
Point3 expectedPt = new Point3(pt[0], pt[1], pt[2]);
// Act
NurbsSurface surface = NurbsSurface.FromLoft(NurbsCurveCollection.OpenCurves());
Point3 evalPt = surface.PointAt(u, v);
// Assert
surface.Should().NotBeNull();
evalPt.EpsilonEquals(expectedPt, GSharkMath.MinTolerance).Should().BeTrue();
}
public void Lofted_Surface_Throws_An_Exception_If_The_All_Curves_Are_Not_Closed_Or_Open()
{
// Arrange
List <NurbsBase> crvs = NurbsCurveCollection.OpenCurves();
crvs[1] = crvs[1].Close();
// Act
Func <NurbsSurface> func = () => NurbsSurface.FromLoft(crvs);
// Assert
func.Should().Throw <Exception>()
.WithMessage("Loft only works if all curves are open, or all curves are closed.");
}
public void Lofted_Surface_Throws_An_Exception_If_There_Are_Null_Curves()
{
// Arrange
List <NurbsBase> crvs = NurbsCurveCollection.OpenCurves();
crvs.Add(null);
// Act
Func <NurbsSurface> func = () => NurbsSurface.FromLoft(crvs);
// Assert
func.Should().Throw <Exception>()
.WithMessage("The input set contains null curves.");
}