public PolyCurveTests(ITestOutputHelper testOutput)
{
_testOutput = testOutput;
int degree = 3;
List <Point3> pts = new List <Point3>
{
new Point3(0, 5, 5),
new Point3(0, 0, 0),
new Point3(5, 0, 0),
new Point3(5, 0, 5),
new Point3(5, 5, 5),
new Point3(5, 5, 0)
};
#region example
// Initializes a polycurve from a curve a line and an arc.
NurbsCurve curve = new NurbsCurve(pts, degree);
Line line = new Line(new Point3(5, 5, 0), new Point3(5, 5, -2.5));
Arc arc = Arc.ByStartEndDirection(new Point3(5, 5, -2.5), new Point3(10, 5, -5), new Vector3(0, 0, -1));
List <NurbsBase> curves = new List <NurbsBase> {
curve, line, arc
};
_polycurve = new PolyCurve(curves);
#endregion
}
public void Initializes_An_Arc_By_Two_Points_And_A_Direction()
{
// Arrange
Point3 pt1 = new Point3(5, 5, 5);
Point3 pt2 = new Point3(10, 15, 10);
Point3 dir = new Point3(3, 3, 0);
// Act
Arc arc = Arc.ByStartEndDirection(pt1, pt2, dir);
// Assert
arc.StartPoint.EpsilonEquals(pt1, 1e-6).Should().BeTrue();
arc.EndPoint.EpsilonEquals(pt2, 1e-6).Should().BeTrue();
arc.Radius.Should().BeApproximately(12.247449, GSharkMath.MaxTolerance);
}
public void It_Returns_A_Arc_Based_On_A_Start_And_An_End_Point_And_A_Direction()
{
// Arrange
Point3 startPt = new Point3(5, 5, 5);
Point3 endPt = new Point3(10, 15, 10);
Vector3 dir = new Vector3(3, 3, 0);
double radiusExpected = 12.247449;
double angleExpected = GSharkMath.ToRadians(60);
Point3 centerExpected = new Point3(0, 10, 15);
// Act
Arc arc = Arc.ByStartEndDirection(startPt, endPt, dir);
// Assert
arc.Angle.Should().BeApproximately(angleExpected, 1e-6);
arc.Radius.Should().BeApproximately(radiusExpected, 1e-6);
arc.Plane.Origin.EpsilonEquals(centerExpected, 1e-6).Should().BeTrue();
}
