public void RayIntersectionWithSegmentTest()
{
Segment3d s = new Segment3d(new Point3d(0, 0, 0), new Point3d(10, 0, 0));
Ray3d r = new Ray3d(new Point3d(-1, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r.IntersectionWith(s), s);
r = new Ray3d(new Point3d(0, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r.IntersectionWith(s), s);
r = new Ray3d(new Point3d(1, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r.IntersectionWith(s), new Segment3d(new Point3d(1, 0, 0), new Point3d(10, 0, 0)));
r = new Ray3d(new Point3d(5, 0, 0), new Vector3d(-1, 0, 0));
Assert.AreEqual(r.IntersectionWith(s), new Segment3d(new Point3d(0, 0, 0), new Point3d(5, 0, 0)));
r = new Ray3d(new Point3d(10, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r.IntersectionWith(s), new Point3d(10, 0, 0));
r = new Ray3d(new Point3d(0, 0, 0), new Vector3d(-1, 0, 0));
Assert.AreEqual(r.IntersectionWith(s), new Point3d(0, 0, 0));
r = new Ray3d(new Point3d(1, 1, 0), new Vector3d(1, -1, 0));
Assert.AreEqual(r.IntersectionWith(s), new Point3d(2, 0, 0));
r = new Ray3d(new Point3d(1, 1, 0), new Vector3d(1, -1, 1));
Assert.IsNull(r.IntersectionWith(s));
}
public void RayIntersectionWithPlaneTest2()
{
Plane3d s = new Plane3d(0, 0, 1, 0);
Ray3d r = new Ray3d(new Point3d(1, 1, 1), new Vector3d(1, 1, 1));
Assert.IsTrue(r.IntersectionWith(s) == null);
}
public void RayIntersectionWithRayTest()
{
Ray3d r1 = new Ray3d(new Point3d(0, 0, 0), new Vector3d(1, 0, 0));
Ray3d r2 = new Ray3d(new Point3d(0, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r1.IntersectionWith(r2), r1);
r2 = new Ray3d(new Point3d(-1, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r1.IntersectionWith(r2), r1);
r2 = new Ray3d(new Point3d(1, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r1.IntersectionWith(r2), r2);
r2 = new Ray3d(new Point3d(0, 0, 0), new Vector3d(-1, 0, 0));
Assert.AreEqual(r1.IntersectionWith(r2), new Point3d(0, 0, 0));
r2 = new Ray3d(new Point3d(1, 0, 0), new Vector3d(-1, 0, 0));
Assert.AreEqual(r1.IntersectionWith(r2), new Segment3d(new Point3d(0, 0, 0), new Point3d(1, 0, 0)));
r2 = new Ray3d(new Point3d(1, 1, 0), new Vector3d(1, -1, 0));
Assert.AreEqual(r1.IntersectionWith(r2), new Point3d(2, 0, 0));
r2 = new Ray3d(new Point3d(1, 1, 0), new Vector3d(1, -1, 1));
Assert.IsNull(r1.IntersectionWith(r2));
}
public void SphereIntersectionWithRayTest()
{
Sphere s = new Sphere(new Point3d(0, 0, 0), 5);
Ray3d r = new Ray3d(new Point3d(0, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r.IntersectionWith(s), new Segment3d(new Point3d(0, 0, 0), new Point3d(5, 0, 0)));
r = new Ray3d(new Point3d(0, 5, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(s.IntersectionWith(r), new Point3d(0, 5, 0));
}
public void RayIntersectionWithLineTest()
{
Line3d l = new Line3d(new Point3d(0, 0, 0), new Vector3d(1, 0, 0));
Ray3d r = new Ray3d(new Point3d(1, 0, 0), new Vector3d(1, 0, 0));
Assert.AreEqual(r.IntersectionWith(l), r);
r = new Ray3d(new Point3d(1, 0, 0), new Vector3d(1, 1, 1));
Assert.AreEqual(r.IntersectionWith(l), new Point3d(1, 0, 0));
r = new Ray3d(new Point3d(1, 1, 0), new Vector3d(1, -1, 0));
Assert.AreEqual(r.IntersectionWith(l), new Point3d(2, 0, 0));
r = new Ray3d(new Point3d(1, 1, 0), new Vector3d(1, -1, 1));
Assert.IsNull(r.IntersectionWith(l));
}