public void It_Returns_The_Point_On_The_Circle_At_The_Give_Length(double length, double[] pts)
{
// Arrange
Point3 expectedPt = new Point3(pts[0], pts[1], pts[2]);
// Act
double normalizeLength = GSharkMath.RemapValue(length, new Interval(0.0, _circle2D.Length), new Interval(0.0, 1.0));
Point3 pt = _circle2D.PointAtLength(length);
Point3 ptNormalizedLength = _circle2D.PointAtNormalizedLength(normalizeLength);
// Assert
pt.EpsilonEquals(expectedPt, GSharkMath.MaxTolerance).Should().BeTrue();
pt.EpsilonEquals(ptNormalizedLength, GSharkMath.MaxTolerance).Should().BeTrue();
}
public void Returns_A_Ruled_Surface_Between_A_Polyline_And_A_Nurbs_Curve(double u, double v, double[] pt)
{
// Arrange
Point3 expectedPt = new Point3(pt[0], pt[1], pt[2]);
List <Point3> ptsA = new List <Point3>
{
new Point3(0, 0, 0),
new Point3(0, 0, 5),
new Point3(5, 0, 5),
new Point3(5, 0, 0),
new Point3(10, 0, 0)
};
List <Point3> ptsB = new List <Point3>
{
new Point3(0, 10, 0),
new Point3(0, 10, 5),
new Point3(5, 10, 5),
new Point3(5, 10, 0),
new Point3(10, 10, 0)
};
PolyLine poly = new PolyLine(ptsA);
NurbsCurve curveB = new NurbsCurve(ptsB, 2);
// Act
NurbsSurface ruledSurface = NurbsSurface.Ruled(poly, curveB);
Point3 pointAt = ruledSurface.PointAt(u, v);
// Assert
pointAt.EpsilonEquals(expectedPt, GSharkMath.MinTolerance).Should().BeTrue();
}
public void It_Returns_The_Point_On_The_Circle_At_The_Give_Parameter(double t, double[] pts)
{
// Arrange
Point3 expectedPt = new Point3(pts[0], pts[1], pts[2]);
// Act
Point3 pt = _circle2D.PointAt(t);
// Assert
pt.EpsilonEquals(expectedPt, GSharkMath.MaxTolerance).Should().BeTrue();
}
public void It_Returns_The_Evaluated_Point_At_The_Given_Parameter(double t, double[] ptExpected)
{
//Arrange
var expectedPt = new Point3(ptExpected[0], ptExpected[1], ptExpected[2]);
// Act
Point3 ptEvaluated = _exampleLine.PointAt(t);
// Assert
ptEvaluated.EpsilonEquals(expectedPt, GSharkMath.Epsilon).Should().BeTrue();
}
public void It_Returns_A_Point_On_Surface_At_A_Given_U_And_V_Parameter(double u, double v, double[] pt)
{
// Arrange
NurbsSurface surface = NurbsSurfaceCollection.QuadrilateralSurface();
Point3 expectedPt = new Point3(pt[0], pt[1], pt[2]);
// Act
Point3 evalPt = surface.PointAt(u, v);
// Assert
evalPt.EpsilonEquals(expectedPt, GSharkMath.MinTolerance).Should().BeTrue();
}
public void It_Returns_The_ClosestPoint()
{
// Arrange
Point3 pt = new Point3(5, 8, 0);
Point3 expectedPt = new Point3(8.692308, 5.538462, 0);
// Act
Point3 closestPt = _exampleLine.ClosestPoint(pt);
// Assert
closestPt.EpsilonEquals(expectedPt, 1e-6).Should().BeTrue();
}
public void It_Returns_The_Closest_Point_On_A_Circle(double[] ptToTest, double[] result)
{
// Arrange
Point3 testPt = new Point3(ptToTest[0], ptToTest[1], ptToTest[2]);
Point3 expectedPt = new Point3(result[0], result[1], result[2]);
// Act
Circle circle = _circle3D;
Point3 pt = circle.ClosestPoint(testPt);
// Assert
pt.EpsilonEquals(expectedPt, GSharkMath.MaxTolerance).Should().BeTrue();
}
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 It_Returns_The_Closest_Point_And_Parameter(double[] ptToCheck, double[] ptExpected, double tValExpected)
{
// Arrange
NurbsBase curve = NurbsCurveCollection.PlanarCurveDegreeThree();
Point3 testPt = new Point3(ptToCheck[0], ptToCheck[1], ptToCheck[2]);
Point3 expectedPt = new Point3(ptExpected[0], ptExpected[1], ptExpected[2]);
// Act
Point3 pt = curve.ClosestPoint(testPt);
double parameter = curve.ClosestParameter(testPt);
// Assert
parameter.Should().BeApproximately(tValExpected, GSharkMath.MaxTolerance);
pt.EpsilonEquals(expectedPt, GSharkMath.MaxTolerance).Should().BeTrue();
}
public void It_Returns_The_Centroid_By_Vertices()
{
// Arrange
Polygon poly2D = new Polygon(Planar2D);
Polygon poly3D = new Polygon(Planar3D);
Point3 centroid2DExpected = new Point3(3.5, 5.5, 0.0);
Point3 centroid3DExpected = new Point3(86.266409, 29.701102, -0.227864);
// Act
Point3 poly2DCentroid = poly2D.CentroidByVertices;
Point3 poly3DCentroid = poly3D.CentroidByVertices;
// Assert
poly2DCentroid.Equals(centroid2DExpected).Should().BeTrue();
poly3DCentroid.EpsilonEquals(centroid3DExpected, GSharkMath.MaxTolerance).Should().BeTrue();
}
public void It_Returns_A_NURBS_Surface_By_Four_Points()
{
// Arrange
Point3 p1 = new Point3(0.0, 0.0, 0.0);
Point3 p2 = new Point3(10.0, 0.0, 0.0);
Point3 p3 = new Point3(10.0, 10.0, 2.0);
Point3 p4 = new Point3(0.0, 10.0, 4.0);
Point3 expectedPt = new Point3(5.0, 5.0, 1.5);
// Act
NurbsSurface surfaceCcw = NurbsSurface.FromCorners(p1, p2, p3, p4);
NurbsSurface surfaceCw = NurbsSurface.FromCorners(p1, p4, p3, p2);
Point3 evalPtCcw = new Point3(surfaceCcw.PointAt(0.5, 0.5));
Point3 evalPtCw = new Point3(surfaceCw.PointAt(0.5, 0.5));
// Assert
surfaceCcw.Should().NotBeNull();
surfaceCcw.ControlPointLocations.Count.Should().Be(2);
surfaceCcw.ControlPointLocations[0].Count.Should().Be(2);
surfaceCcw.ControlPointLocations[0][1].Equals(p4).Should().BeTrue();
(evalPtCcw.EpsilonEquals(expectedPt, GSharkMath.MinTolerance) && evalPtCw.EpsilonEquals(expectedPt, GSharkMath.MinTolerance)).Should().BeTrue();
}