public void CanGetDistanceToVerticalPlane3D()
{
List <Pnt3D> points = GetVerticalTrianglePoints();
Plane3D plane = Plane3D.FitPlane(points);
Console.WriteLine(@"A: " + plane.A);
Console.WriteLine(@"B: " + plane.B);
Console.WriteLine(@"C: " + plane.C);
Console.WriteLine(@"D: " + plane.D);
Assert.AreEqual(0, plane.C, plane.Epsilon); // vertical
Assert.AreEqual(1, plane.GetUnitNormal().LengthSquared);
Assert.AreEqual(0.89606641473951276, plane.GetUnitNormal().X, plane.Epsilon);
Assert.AreEqual(0.44392001574143475, plane.GetUnitNormal().Y, plane.Epsilon);
foreach (Pnt3D point in points)
{
double distance = plane.GetDistanceAbs(point.X, point.Y, point.Z);
Console.WriteLine(@"{0}: {1}", point, distance);
Assert.AreEqual(0, distance, plane.Epsilon);
}
Assert.Catch <InvalidOperationException>(() => plane.GetZ(100, 100));
}
public void CanFitHorizontalPlane3D()
{
var x = new double[] { 0, 0, 0, 1, 1, 1, 2, 2, 2 };
var y = new double[] { 1, 2, 3, 1, 2, 3, 1, 2, 3 };
var z = new double[] { 1, 1, 1, 1, 1, 1, 1, 1, 1 };
Plane3D plane = FitPlane3D(x, y, z);
Assert.AreEqual(1, plane.GetZ(-1000, -1000));
Assert.AreEqual(1, plane.GetZ(1000, 1000));
Assert.AreEqual(1, plane.GetDistanceAbs(1000, 1000, 0));
Assert.AreEqual(1, plane.GetUnitNormal().LengthSquared);
}
