public void TestFindOrthogonalContactsOnTriangle()
{
Areas.Triangle3 triangle = new Areas.Triangle3(
new Vector3(10.0f, 10.0f, 15.0f),
new Vector3(20.0f, 10.0f, 15.0f),
new Vector3(15.0f, 20.0f, 15.0f)
);
LineContacts contacts = new Segment3(
new Vector3(15.0f, 15.0f, 0.0f), new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(triangle);
Assert.AreEqual(
0.5f, contacts.EntryTime,
"Direct orthogonal contact to triangle detected"
);
contacts = new Segment3(
new Vector3(15.0f, 15.0f, 30.0f), new Vector3(15.0f, 15.0f, 0.0f)
).FindContacts(triangle);
Assert.AreEqual(
0.5f, contacts.EntryTime,
"Direct orthogonal contact to triangle backside detected"
);
}
/// <summary>Checks whether another instance is equal to this instance</summary>
/// <param name="other">Other instance to compare to this instance</param>
/// <returns>True if the other instance is equal to this instance</returns>
public virtual bool Equals(Segment3 other)
{
if (ReferenceEquals(other, null))
{
return(false);
}
else
{
return((this.Start == other.Start) && (this.End == other.End));
}
}
public void TestConstructor()
{
Segment3 line = new Segment3(
new Vector3(1.0f, 2.0f, 3.0f), new Vector3(4.0f, 5.0f, 6.0f)
);
Assert.AreEqual(1.0f, line.Start.X, "X start is taken over from constructor");
Assert.AreEqual(2.0f, line.Start.Y, "Y start is taken over from constructor");
Assert.AreEqual(3.0f, line.Start.Z, "Z start is taken over from constructor");
Assert.AreEqual(4.0f, line.End.X, "X end is taken over from constructor");
Assert.AreEqual(5.0f, line.End.Y, "Y end is taken over from constructor");
Assert.AreEqual(6.0f, line.End.Z, "Z end is taken over from constructor");
}
public void TestFindSideContactsOnTriangle()
{
Areas.Triangle3 triangle = new Areas.Triangle3(
new Vector3(10.0f, 10.0f, 15.0f),
new Vector3(20.0f, 10.0f, 15.0f),
new Vector3(15.0f, 20.0f, 15.0f)
);
LineContacts contacts = new Segment3(
new Vector3(15.0f, 5.0f, 0.0f), new Vector3(15.0f, 5.0f, 30.0f)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side A->B miss of triangle plane correctly filtered out"
);
contacts = new Segment3(
new Vector3(10.0f, 15.0f, 0.0f), new Vector3(10.0f, 15.0f, 30.0f)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side A->C miss of triangle plane correctly filtered out"
);
contacts = new Segment3(
new Vector3(20.0f, 15.0f, 0.0f), new Vector3(20.0f, 15.0f, 30.0f)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side B->C miss of triangle plane correctly filtered out"
);
contacts = new Ray3(
new Vector3(15.0f, 15.0f, 15.0f + Specifications.MaximumDeviation),
new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime,
"Close orthogonal miss of triangle at segment beginning correctly filtered out"
);
contacts = new Ray3(
new Vector3(15.0f, 15.0f, 0.0f),
new Vector3(15.0f, 15.0f, 15.0f - Specifications.MaximumDeviation)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime,
"Close orthogonal miss of triangle at segment end correctly filtered out"
);
}
public void TestSerialization()
{
XmlSerializer serializer = new XmlSerializer(typeof(Segment3));
System.IO.MemoryStream stream = new System.IO.MemoryStream();
Segment3 segment = new Segment3(
new Vector3(123.0f, 456.0f, 789.0f), new Vector3(987.0f, 654.0f, 321.0f)
);
serializer.Serialize(stream, segment);
stream.Seek(0, System.IO.SeekOrigin.Begin);
Segment3 restored = (Segment3)serializer.Deserialize(stream);
Assert.AreEqual(segment, restored, "Deserialized segment matches serialized segment");
}
public void TestEqualityOperator()
{
Segment3 segment1 = new Segment3(
new Vector3(100.0f, 200.0f, 300.0f), new Vector3(400.0f, 500.0f, 600.0f)
);
Segment3 segment2 = new Segment3(segment1);
Assert.AreEqual(segment1, segment2, "Copied segment is equal to the original segment");
segment1.Start.X = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.Start.X = 100.0f;
segment1.Start.Y = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.Start.Y = 200.0f;
segment1.Start.Z = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.Start.Z = 300.0f;
segment1.End.X = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.End.X = 400.0f;
segment1.End.Y = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.End.Y = 500.0f;
segment1.End.Z = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.End.Z = 600.0f;
}
public void TestEqualityOperator() {
Segment3 segment1 = new Segment3(
new Vector3(100.0f, 200.0f, 300.0f), new Vector3(400.0f, 500.0f, 600.0f)
);
Segment3 segment2 = new Segment3(segment1);
Assert.AreEqual(segment1, segment2, "Copied segment is equal to the original segment");
segment1.Start.X = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.Start.X = 100.0f;
segment1.Start.Y = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.Start.Y = 200.0f;
segment1.Start.Z = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.Start.Z = 300.0f;
segment1.End.X = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.End.X = 400.0f;
segment1.End.Y = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.End.Y = 500.0f;
segment1.End.Z = 0.0f;
Assert.AreNotEqual(
segment1, segment2, "Modified copy is no longer equal to the original segment"
);
segment1.End.Z = 600.0f;
}
public void TestFindContactsOnPlane()
{
Areas.Plane3 plane = new Areas.Plane3(
new Vector3(15.0f, 15.0f, 15.0f),
-Vector3.Backward
);
LineContacts contacts = new Segment3(
new Vector3(15.0f, 15.0f, 0.0f), new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(plane);
Assert.AreEqual(
0.5f, contacts.EntryTime,
"Direct orthogonal contact to plane detected"
);
contacts = new Segment3(
new Vector3(15.0f, 15.0f, 30.0f), new Vector3(15.0f, 15.0f, 0.0f)
).FindContacts(plane);
Assert.AreEqual(
0.5f, contacts.EntryTime,
"Direct orthogonal contact to plane from backside detected"
);
}
public void TestEqualityOperatorAgainstNull() {
Segment3 line = new Segment3();
Assert.IsFalse(line.Equals(null), "Initialized Line is not equal to null");
}
public void TestClosestPoint() {
// Test whether the closest point determination works on the X axis
Segment3 line = new Segment3(
new Vector3(0.0f, 100.0f, 100.0f), new Vector3(1.0f, 100.0f, 100.0f)
);
Vector3 leftCap = line.ClosestPointTo(new Vector3(-2.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(0.0f, 100.0f, 100.0f), leftCap, "Closest point beyond left end found"
);
Vector3 leftPoint = line.ClosestPointTo(new Vector3(0.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(0.0f, 100.0f, 100.0f), leftPoint, "Closest point on left end found"
);
Vector3 midLeftRight = line.ClosestPointTo(new Vector3(0.5f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(0.5f, 100.0f, 100.0f), midLeftRight, "Closest point inmidst of line found"
);
Vector3 rightPoint = line.ClosestPointTo(new Vector3(1.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(1.0f, 100.0f, 100.0f), rightPoint, "Closest point on right end found"
);
Vector3 rightCap = line.ClosestPointTo(new Vector3(3.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(1.0f, 100.0f, 100.0f), rightCap, "Closest point beyond right end found"
);
// Test whether the closest point determination works on the Y axis
line = new Segment3(new Vector3(100.0f, 0.0f, 100.0f), new Vector3(100.0f, 1.0f, 100.0f));
leftCap = line.ClosestPointTo(new Vector3(200.0f, -2.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 0.0f, 100.0f), leftCap, "Closest point beyond lower end found"
);
leftPoint = line.ClosestPointTo(new Vector3(200.0f, 0.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 0.0f, 100.0f), leftPoint, "Closest point on lower end found"
);
midLeftRight = line.ClosestPointTo(new Vector3(200.0f, 0.5f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 0.5f, 100.0f), midLeftRight, "Closest point inmidst of line found"
);
rightPoint = line.ClosestPointTo(new Vector3(200.0f, 1.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 1.0f, 100.0f), rightPoint, "Closest point on upper end found"
);
rightCap = line.ClosestPointTo(new Vector3(200.0f, 3.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 1.0f, 100.0f), rightCap, "Closest point beyond upper end found"
);
// Test whether the closest point determination works on the Z axis
line = new Segment3(new Vector3(100.0f, 100.0f, 0.0f), new Vector3(100.0f, 100.0f, 1.0f));
leftCap = line.ClosestPointTo(new Vector3(200.0f, 200.0f, -2.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 0.0f), leftCap, "Closest point beyond nearest end found"
);
leftPoint = line.ClosestPointTo(new Vector3(200.0f, 200.0f, 0.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 0.0f), leftPoint, "Closest point on nearest end found"
);
midLeftRight = line.ClosestPointTo(new Vector3(200.0f, 200.0f, 0.5f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 0.5f), midLeftRight, "Closest point inmidst of line found"
);
rightPoint = line.ClosestPointTo(new Vector3(200.0f, 200.0f, 1.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 1.0f), rightPoint, "Closest point on farthest end found"
);
rightCap = line.ClosestPointTo(new Vector3(200.0f, 200.0f, 3.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 1.0f), rightCap, "Closest point beyond farthest end found"
);
}
public void TestFindContactsOnOrientedBox() {
Volumes.Box3 box = new Volumes.Box3(
MatrixHelper.Create(
new Vector3(15.0f, 15.0f, 15.0f),
Vector3.Normalize(new Vector3(1.0f, -1.0f, -1.0f)),
Vector3.Normalize(new Vector3(1.0f, 1.0f, -1.0f)),
Vector3.Normalize(new Vector3(1.0f, 1.0f, 1.0f))
),
new Vector3(5.0f, 5.0f, 5.0f)
);
float boxRadius = (float)Math.Sqrt(5 * 5 + 5 * 5 + 5 * 5);
float outRadius = boxRadius + Specifications.MaximumDeviation;
float[] contacts = new Segment3(
new Vector3(0.0f, 15.0f, 15.0f),
new Vector3(30.0f, 15.0f, 15.0f)
).FindContacts(box);
Assert.AreEqual(
(15.0f - boxRadius) / 30.0f, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for X sweep found"
);
Assert.AreEqual(
(15.0f + boxRadius) / 30.0f, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for X sweep found"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f, 15.0f),
new Vector3(15.0f - outRadius, 15.0f, 15.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f + outRadius, 15.0f, 15.0f),
new Vector3(30.0f, 15.0f, 15.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f - outRadius, 15.0f),
new Vector3(30.0f, 15.0f - outRadius, 15.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f + outRadius, 15.0f),
new Vector3(30.0f, 15.0f + outRadius, 15.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f, 15.0f - outRadius),
new Vector3(30.0f, 15.0f, 15.0f - outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f, 15.0f + outRadius),
new Vector3(30.0f, 15.0f, 15.0f + outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
contacts = new Segment3(
new Vector3(15.0f, 0.0f, 15.0f),
new Vector3(15.0f, 30.0f, 15.0f)
).FindContacts(box);
Assert.AreEqual(
(15.0f - boxRadius) / 30.0f, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for Y sweep found"
);
Assert.AreEqual(
(15.0f + boxRadius) / 30.0f, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for Y sweep found"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 0.0f, 15.0f),
new Vector3(15.0f, 15.0f - outRadius, 15.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f + outRadius, 15.0f),
new Vector3(15.0f, 30.0f, 15.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f - outRadius, 0.0f, 15.0f),
new Vector3(15.0f - outRadius, 30.0f, 15.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f + outRadius, 0.0f, 15.0f),
new Vector3(15.0f + outRadius, 30.0f, 15.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 0.0f, 15.0f - outRadius),
new Vector3(15.0f, 30.0f, 15.0f - outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 0.0f, 15.0f + outRadius),
new Vector3(15.0f, 30.0f, 15.0f + outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
contacts = new Segment3(
new Vector3(15.0f, 15.0f, 0.0f),
new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(box);
Assert.AreEqual(
(15.0f - boxRadius) / 30.0, contacts[0], Specifications.MaximumDeviation,
"Contact locations on boxf for Z sweep found"
);
Assert.AreEqual(
(15.0f + boxRadius) / 30.0f, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for Z sweep found"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f, 0.0f),
new Vector3(15.0f, 15.0f, 15.0f - outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f, 15.0f + outRadius),
new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f - outRadius, 15.0f, 0.0f),
new Vector3(15.0f - outRadius, 15.0f, 30.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f + outRadius, 15.0f, 0.0f),
new Vector3(15.0f + outRadius, 15.0f, 30.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f - outRadius, 0.0f),
new Vector3(15.0f, 15.0f - outRadius, 30.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f + outRadius, 0.0f),
new Vector3(15.0f, 15.0f + outRadius, 30.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
}
public void TestFindContactsOnOrientedBox()
{
Volumes.Box3 box = new Volumes.Box3(
MatrixHelper.Create(
new Vector3(15.0f, 15.0f, 15.0f),
Vector3.Normalize(new Vector3(1.0f, -1.0f, -1.0f)),
Vector3.Normalize(new Vector3(1.0f, 1.0f, -1.0f)),
Vector3.Normalize(new Vector3(1.0f, 1.0f, 1.0f))
),
new Vector3(5.0f, 5.0f, 5.0f)
);
float boxRadius = (float)Math.Sqrt(5 * 5 + 5 * 5 + 5 * 5);
float outRadius = boxRadius + Specifications.MaximumDeviation;
float[] contacts = new Segment3(
new Vector3(0.0f, 15.0f, 15.0f),
new Vector3(30.0f, 15.0f, 15.0f)
).FindContacts(box);
Assert.AreEqual(
(15.0f - boxRadius) / 30.0f, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for X sweep found"
);
Assert.AreEqual(
(15.0f + boxRadius) / 30.0f, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for X sweep found"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f, 15.0f),
new Vector3(15.0f - outRadius, 15.0f, 15.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f + outRadius, 15.0f, 15.0f),
new Vector3(30.0f, 15.0f, 15.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f - outRadius, 15.0f),
new Vector3(30.0f, 15.0f - outRadius, 15.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f + outRadius, 15.0f),
new Vector3(30.0f, 15.0f + outRadius, 15.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f, 15.0f - outRadius),
new Vector3(30.0f, 15.0f, 15.0f - outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(0.0f, 15.0f, 15.0f + outRadius),
new Vector3(30.0f, 15.0f, 15.0f + outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
contacts = new Segment3(
new Vector3(15.0f, 0.0f, 15.0f),
new Vector3(15.0f, 30.0f, 15.0f)
).FindContacts(box);
Assert.AreEqual(
(15.0f - boxRadius) / 30.0f, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for Y sweep found"
);
Assert.AreEqual(
(15.0f + boxRadius) / 30.0f, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for Y sweep found"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 0.0f, 15.0f),
new Vector3(15.0f, 15.0f - outRadius, 15.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f + outRadius, 15.0f),
new Vector3(15.0f, 30.0f, 15.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f - outRadius, 0.0f, 15.0f),
new Vector3(15.0f - outRadius, 30.0f, 15.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f + outRadius, 0.0f, 15.0f),
new Vector3(15.0f + outRadius, 30.0f, 15.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 0.0f, 15.0f - outRadius),
new Vector3(15.0f, 30.0f, 15.0f - outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 0.0f, 15.0f + outRadius),
new Vector3(15.0f, 30.0f, 15.0f + outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
contacts = new Segment3(
new Vector3(15.0f, 15.0f, 0.0f),
new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(box);
Assert.AreEqual(
(15.0f - boxRadius) / 30.0, contacts[0], Specifications.MaximumDeviation,
"Contact locations on boxf for Z sweep found"
);
Assert.AreEqual(
(15.0f + boxRadius) / 30.0f, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for Z sweep found"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f, 0.0f),
new Vector3(15.0f, 15.0f, 15.0f - outRadius)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f, 15.0f + outRadius),
new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f - outRadius, 15.0f, 0.0f),
new Vector3(15.0f - outRadius, 15.0f, 30.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f + outRadius, 15.0f, 0.0f),
new Vector3(15.0f + outRadius, 15.0f, 30.0f)
).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f - outRadius, 0.0f),
new Vector3(15.0f, 15.0f - outRadius, 30.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Segment3(
new Vector3(15.0f, 15.0f + outRadius, 0.0f),
new Vector3(15.0f, 15.0f + outRadius, 30.0f)
).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
}
public Segment3(Segment3 other) {
Start = other.Start;
End = other.End;
}
public void TestEqualityOperatorAgainstNull()
{
Segment3 line = new Segment3();
Assert.IsFalse(line.Equals(null), "Initialized Line is not equal to null");
}
public void TestSerialization() {
XmlSerializer serializer = new XmlSerializer(typeof(Segment3));
System.IO.MemoryStream stream = new System.IO.MemoryStream();
Segment3 segment = new Segment3(
new Vector3(123.0f, 456.0f, 789.0f), new Vector3(987.0f, 654.0f, 321.0f)
);
serializer.Serialize(stream, segment);
stream.Seek(0, System.IO.SeekOrigin.Begin);
Segment3 restored = (Segment3)serializer.Deserialize(stream);
Assert.AreEqual(segment, restored, "Deserialized segment matches serialized segment");
}
public void TestFindSideContactsOnTriangle() {
Areas.Triangle3 triangle = new Areas.Triangle3(
new Vector3(10.0f, 10.0f, 15.0f),
new Vector3(20.0f, 10.0f, 15.0f),
new Vector3(15.0f, 20.0f, 15.0f)
);
LineContacts contacts = new Segment3(
new Vector3(15.0f, 5.0f, 0.0f), new Vector3(15.0f, 5.0f, 30.0f)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side A->B miss of triangle plane correctly filtered out"
);
contacts = new Segment3(
new Vector3(10.0f, 15.0f, 0.0f), new Vector3(10.0f, 15.0f, 30.0f)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side A->C miss of triangle plane correctly filtered out"
);
contacts = new Segment3(
new Vector3(20.0f, 15.0f, 0.0f), new Vector3(20.0f, 15.0f, 30.0f)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side B->C miss of triangle plane correctly filtered out"
);
contacts = new Ray3(
new Vector3(15.0f, 15.0f, 15.0f + Specifications.MaximumDeviation),
new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime,
"Close orthogonal miss of triangle at segment beginning correctly filtered out"
);
contacts = new Ray3(
new Vector3(15.0f, 15.0f, 0.0f),
new Vector3(15.0f, 15.0f, 15.0f - Specifications.MaximumDeviation)
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime,
"Close orthogonal miss of triangle at segment end correctly filtered out"
);
}
public void TestFindOrthogonalContactsOnTriangle() {
Areas.Triangle3 triangle = new Areas.Triangle3(
new Vector3(10.0f, 10.0f, 15.0f),
new Vector3(20.0f, 10.0f, 15.0f),
new Vector3(15.0f, 20.0f, 15.0f)
);
LineContacts contacts = new Segment3(
new Vector3(15.0f, 15.0f, 0.0f), new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(triangle);
Assert.AreEqual(
0.5f, contacts.EntryTime,
"Direct orthogonal contact to triangle detected"
);
contacts = new Segment3(
new Vector3(15.0f, 15.0f, 30.0f), new Vector3(15.0f, 15.0f, 0.0f)
).FindContacts(triangle);
Assert.AreEqual(
0.5f, contacts.EntryTime,
"Direct orthogonal contact to triangle backside detected"
);
}
public void TestFindContactsOnPlane() {
Areas.Plane3 plane = new Areas.Plane3(
new Vector3(15.0f, 15.0f, 15.0f),
-Vector3.Backward
);
LineContacts contacts = new Segment3(
new Vector3(15.0f, 15.0f, 0.0f), new Vector3(15.0f, 15.0f, 30.0f)
).FindContacts(plane);
Assert.AreEqual(
0.5f, contacts.EntryTime,
"Direct orthogonal contact to plane detected"
);
contacts = new Segment3(
new Vector3(15.0f, 15.0f, 30.0f), new Vector3(15.0f, 15.0f, 0.0f)
).FindContacts(plane);
Assert.AreEqual(
0.5f, contacts.EntryTime,
"Direct orthogonal contact to plane from backside detected"
);
}
public void TestConstructor() {
Segment3 line = new Segment3(
new Vector3(1.0f, 2.0f, 3.0f), new Vector3(4.0f, 5.0f, 6.0f)
);
Assert.AreEqual(1.0f, line.Start.X, "X start is taken over from constructor");
Assert.AreEqual(2.0f, line.Start.Y, "Y start is taken over from constructor");
Assert.AreEqual(3.0f, line.Start.Z, "Z start is taken over from constructor");
Assert.AreEqual(4.0f, line.End.X, "X end is taken over from constructor");
Assert.AreEqual(5.0f, line.End.Y, "Y end is taken over from constructor");
Assert.AreEqual(6.0f, line.End.Z, "Z end is taken over from constructor");
}
public void TestClosestPoint()
{
// Test whether the closest point determination works on the X axis
Segment3 line = new Segment3(
new Vector3(0.0f, 100.0f, 100.0f), new Vector3(1.0f, 100.0f, 100.0f)
);
Vector3 leftCap = line.ClosestPointTo(new Vector3(-2.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(0.0f, 100.0f, 100.0f), leftCap, "Closest point beyond left end found"
);
Vector3 leftPoint = line.ClosestPointTo(new Vector3(0.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(0.0f, 100.0f, 100.0f), leftPoint, "Closest point on left end found"
);
Vector3 midLeftRight = line.ClosestPointTo(new Vector3(0.5f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(0.5f, 100.0f, 100.0f), midLeftRight, "Closest point inmidst of line found"
);
Vector3 rightPoint = line.ClosestPointTo(new Vector3(1.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(1.0f, 100.0f, 100.0f), rightPoint, "Closest point on right end found"
);
Vector3 rightCap = line.ClosestPointTo(new Vector3(3.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(1.0f, 100.0f, 100.0f), rightCap, "Closest point beyond right end found"
);
// Test whether the closest point determination works on the Y axis
line = new Segment3(new Vector3(100.0f, 0.0f, 100.0f), new Vector3(100.0f, 1.0f, 100.0f));
leftCap = line.ClosestPointTo(new Vector3(200.0f, -2.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 0.0f, 100.0f), leftCap, "Closest point beyond lower end found"
);
leftPoint = line.ClosestPointTo(new Vector3(200.0f, 0.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 0.0f, 100.0f), leftPoint, "Closest point on lower end found"
);
midLeftRight = line.ClosestPointTo(new Vector3(200.0f, 0.5f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 0.5f, 100.0f), midLeftRight, "Closest point inmidst of line found"
);
rightPoint = line.ClosestPointTo(new Vector3(200.0f, 1.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 1.0f, 100.0f), rightPoint, "Closest point on upper end found"
);
rightCap = line.ClosestPointTo(new Vector3(200.0f, 3.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, 1.0f, 100.0f), rightCap, "Closest point beyond upper end found"
);
// Test whether the closest point determination works on the Z axis
line = new Segment3(new Vector3(100.0f, 100.0f, 0.0f), new Vector3(100.0f, 100.0f, 1.0f));
leftCap = line.ClosestPointTo(new Vector3(200.0f, 200.0f, -2.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 0.0f), leftCap, "Closest point beyond nearest end found"
);
leftPoint = line.ClosestPointTo(new Vector3(200.0f, 200.0f, 0.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 0.0f), leftPoint, "Closest point on nearest end found"
);
midLeftRight = line.ClosestPointTo(new Vector3(200.0f, 200.0f, 0.5f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 0.5f), midLeftRight, "Closest point inmidst of line found"
);
rightPoint = line.ClosestPointTo(new Vector3(200.0f, 200.0f, 1.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 1.0f), rightPoint, "Closest point on farthest end found"
);
rightCap = line.ClosestPointTo(new Vector3(200.0f, 200.0f, 3.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, 1.0f), rightCap, "Closest point beyond farthest end found"
);
}
public Segment3(Segment3 other)
{
Start = other.Start;
End = other.End;
}
/// <summary>Checks whether another instance is equal to this instance</summary>
/// <param name="other">Other instance to compare to this instance</param>
/// <returns>True if the other instance is equal to this instance</returns>
public virtual bool Equals(Segment3 other) {
if(ReferenceEquals(other, null))
return false;
else
return (this.Start == other.Start) && (this.End == other.End);
}
