public void TestEqualityOperator() {
Line3 line1 = new Line3(
new Vector3(100.0f, 200.0f, 300.0f), new Vector3(400.0f, 500.0f, 600.0f)
);
Line3 line2 = new Line3(line1);
Assert.AreEqual(line1, line2, "Copied line is equal to the original line");
line1.Offset.X = 0.0f;
Assert.AreNotEqual(line1, line2, "Modified copy is no longer equal to the original line");
line1.Offset.X = 100.0f;
line1.Offset.Y = 0.0f;
Assert.AreNotEqual(line1, line2, "Modified copy is no longer equal to the original line");
line1.Offset.Y = 200.0f;
line1.Offset.Z = 0.0f;
Assert.AreNotEqual(line1, line2, "Modified copy is no longer equal to the original line");
line1.Offset.Z = 300.0f;
line1.Direction.X = 0.0f;
Assert.AreNotEqual(line1, line2, "Modified copy is no longer equal to the original line");
line1.Direction.X = 400.0f;
line1.Direction.Y = 0.0f;
Assert.AreNotEqual(line1, line2, "Modified copy is no longer equal to the original line");
line1.Direction.Y = 500.0f;
line1.Direction.Z = 0.0f;
Assert.AreNotEqual(line1, line2, "Modified copy is no longer equal to the original line");
line1.Direction.Z = 600.0f;
}
public void TestConstructor() {
Line3 line = new Line3(new Vector3(1.0f, 2.0f, 3.0f), new Vector3(4.0f, 5.0f, 6.0f));
Assert.AreEqual(1.0f, line.Offset.X, "X offset is taken over from constructor");
Assert.AreEqual(2.0f, line.Offset.Y, "Y offset is taken over from constructor");
Assert.AreEqual(3.0f, line.Offset.Z, "Z offset is taken over from constructor");
Assert.AreEqual(4.0f, line.Direction.X, "X direction is taken over from constructor");
Assert.AreEqual(5.0f, line.Direction.Y, "Y direction is taken over from constructor");
Assert.AreEqual(6.0f, line.Direction.Z, "Z direction is taken over from constructor");
}
public void TestClosestPoint()
{
// Test whether the closest point determination works on the X axis
Line3 line = new Line3(new Vector3(0.0f, 100.0f, 100.0f), Vector3.Right);
Vector3 leftCap = line.ClosestPointTo(new Vector3(-2.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(-2.0f, 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(3.0f, 100.0f, 100.0f), rightCap, "Closest point beyond right end found"
);
// Test whether the closest point determination works on the Y axis
line = new Line3(new Vector3(100.0f, 0.0f, 100.0f), Vector3.Up);
leftCap = line.ClosestPointTo(new Vector3(200.0f, -2.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, -2.0f, 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, 3.0f, 100.0f), rightCap, "Closest point beyond upper end found"
);
// Tests whether the closest point determination works on the Z axis
line = new Line3(new Vector3(100.0f, 100.0f, 0.0f), Vector3.Backward);
leftCap = line.ClosestPointTo(new Vector3(200.0f, 200.0f, -2.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, -2.0f), 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, 3.0f), rightCap, "Closest point beyond farthest end found"
);
}
public void TestEqualityOperatorAgainstNull()
{
Line3 line = new Line3();
Assert.IsFalse(line.Equals(null), "Initialized Line is not equal to null");
}
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.HullAccuracy;
float[] contacts =
new Line3(new Vector3(0.0f, 15.0f, 15.0f), Vector3.Right).FindContacts(box);
Assert.AreEqual(
15.0f - boxRadius, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for X sweep found"
);
Assert.AreEqual(
15.0f + boxRadius, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for X sweep found"
);
Assert.IsNull(
new Line3(new Vector3(0.0f, 15.0f - outRadius, 15.0f), Vector3.Right).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(0.0f, 15.0f + outRadius, 15.0f), Vector3.Right).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(0.0f, 15.0f, 15.0f - outRadius), Vector3.Right).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(0.0f, 15.0f, 15.0f + outRadius), Vector3.Right).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
contacts =
new Line3(new Vector3(15.0f, 0.0f, 15.0f), Vector3.Up).FindContacts(box);
Assert.AreEqual(
15.0f - boxRadius, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for Y sweep found"
);
Assert.AreEqual(
15.0f + boxRadius, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for Y sweep found"
);
Assert.IsNull(
new Line3(new Vector3(15.0f - outRadius, 0.0f, 15.0f), Vector3.Up).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f + outRadius, 0.0f, 15.0f), Vector3.Up).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f, 0.0f, 15.0f - outRadius), Vector3.Up).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f, 0.0f, 15.0f + outRadius), Vector3.Up).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
contacts =
new Line3(new Vector3(15.0f, 15.0f, 0.0f), Vector3.Backward).FindContacts(box);
Assert.AreEqual(
15.0f - boxRadius, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for Z sweep found"
);
Assert.AreEqual(
15.0f + boxRadius, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for Z sweep found"
);
Assert.IsNull(
new Line3(new Vector3(15.0f - outRadius, 15.0f, 0.0f), Vector3.Backward).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f + outRadius, 15.0f, 0.0f), Vector3.Backward).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f, 15.0f - outRadius, 0.0f), Vector3.Backward).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f, 15.0f + outRadius, 0.0f), Vector3.Backward).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
}
public void TestClosestPoint() {
// Test whether the closest point determination works on the X axis
Line3 line = new Line3(new Vector3(0.0f, 100.0f, 100.0f), Vector3.Right);
Vector3 leftCap = line.ClosestPointTo(new Vector3(-2.0f, 200.0f, 200.0f));
Assert.AreEqual(
new Vector3(-2.0f, 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(3.0f, 100.0f, 100.0f), rightCap, "Closest point beyond right end found"
);
// Test whether the closest point determination works on the Y axis
line = new Line3(new Vector3(100.0f, 0.0f, 100.0f), Vector3.Up);
leftCap = line.ClosestPointTo(new Vector3(200.0f, -2.0f, 200.0f));
Assert.AreEqual(
new Vector3(100.0f, -2.0f, 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, 3.0f, 100.0f), rightCap, "Closest point beyond upper end found"
);
// Tests whether the closest point determination works on the Z axis
line = new Line3(new Vector3(100.0f, 100.0f, 0.0f), Vector3.Backward);
leftCap = line.ClosestPointTo(new Vector3(200.0f, 200.0f, -2.0f));
Assert.AreEqual(
new Vector3(100.0f, 100.0f, -2.0f), 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, 3.0f), rightCap, "Closest point beyond farthest end found"
);
}
public void TestEqualityOperatorAgainstNull() {
Line3 line = new Line3();
Assert.IsFalse(line.Equals(null), "Initialized Line is not equal to null");
}
public void TestSerialization() {
XmlSerializer serializer = new XmlSerializer(typeof(Line3));
System.IO.MemoryStream stream = new System.IO.MemoryStream();
Line3 line = new Line3(
new Vector3(123.0f, 456.0f, 789.0f), new Vector3(987.0f, 654.0f, 321.0f)
);
serializer.Serialize(stream, line);
stream.Seek(0, System.IO.SeekOrigin.Begin);
Line3 restored = (Line3)serializer.Deserialize(stream);
Assert.AreEqual(line, restored, "Deserialized line matches serialized line");
}
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 Line3(
new Vector3(15.0f, 15.0f, 0.0f), Vector3.Backward
).FindContacts(triangle);
Assert.AreEqual(
15.0f, contacts.EntryTime,
"Direct orthogonal contact to triangle detected"
);
contacts = new Line3(
new Vector3(15.0f, 15.0f, 30.0f), -Vector3.Backward
).FindContacts(triangle);
Assert.AreEqual(
15.0f, contacts.EntryTime,
"Direct orthogonal contact to triangle backside detected"
);
contacts = new Line3(
new Vector3(15.0f, 5.0f, 0.0f), Vector3.Backward
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side A->B miss of triangle plane correctly filtered out"
);
contacts = new Line3(
new Vector3(10.0f, 15.0f, 0.0f), Vector3.Backward
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side A->C miss of triangle plane correctly filtered out"
);
contacts = new Line3(
new Vector3(20.0f, 15.0f, 0.0f), Vector3.Backward
).FindContacts(triangle);
Assert.IsNaN(
contacts.EntryTime, "Side B->C miss of triangle plane 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 Line3(
new Vector3(15.0f, 15.0f, 0.0f), Vector3.Backward
).FindContacts(triangle);
Assert.AreEqual(
15.0f, contacts.EntryTime,
"Direct orthogonal contact to triangle detected"
);
contacts = new Line3(
new Vector3(15.0f, 15.0f, 30.0f), -Vector3.Backward
).FindContacts(triangle);
Assert.AreEqual(
15.0f, 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 Line3(
new Vector3(15.0f, 15.0f, 0.0f), Vector3.Backward
).FindContacts(plane);
Assert.AreEqual(
15.0f, contacts.EntryTime,
"Direct orthogonal contact to plane detected"
);
contacts = new Line3(
new Vector3(15.0f, 15.0f, 30.0f), -Vector3.Backward
).FindContacts(plane);
Assert.AreEqual(
15.0f, contacts.EntryTime,
"Direct orthogonal contact to plane from backside detected"
);
}
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.HullAccuracy;
float[] contacts =
new Line3(new Vector3(0.0f, 15.0f, 15.0f), Vector3.Right).FindContacts(box);
Assert.AreEqual(
15.0f - boxRadius, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for X sweep found"
);
Assert.AreEqual(
15.0f + boxRadius, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for X sweep found"
);
Assert.IsNull(
new Line3(new Vector3(0.0f, 15.0f - outRadius, 15.0f), Vector3.Right).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(0.0f, 15.0f + outRadius, 15.0f), Vector3.Right).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(0.0f, 15.0f, 15.0f - outRadius), Vector3.Right).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(0.0f, 15.0f, 15.0f + outRadius), Vector3.Right).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
contacts =
new Line3(new Vector3(15.0f, 0.0f, 15.0f), Vector3.Up).FindContacts(box);
Assert.AreEqual(
15.0f - boxRadius, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for Y sweep found"
);
Assert.AreEqual(
15.0f + boxRadius, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for Y sweep found"
);
Assert.IsNull(
new Line3(new Vector3(15.0f - outRadius, 0.0f, 15.0f), Vector3.Up).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f + outRadius, 0.0f, 15.0f), Vector3.Up).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f, 0.0f, 15.0f - outRadius), Vector3.Up).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f, 0.0f, 15.0f + outRadius), Vector3.Up).FindContacts(box),
"Close miss of box on Z axis properly handled"
);
contacts =
new Line3(new Vector3(15.0f, 15.0f, 0.0f), Vector3.Backward).FindContacts(box);
Assert.AreEqual(
15.0f - boxRadius, contacts[0], Specifications.MaximumDeviation,
"Contact locations on box for Z sweep found"
);
Assert.AreEqual(
15.0f + boxRadius, contacts[1], Specifications.MaximumDeviation,
"Contact locations on box for Z sweep found"
);
Assert.IsNull(
new Line3(new Vector3(15.0f - outRadius, 15.0f, 0.0f), Vector3.Backward).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f + outRadius, 15.0f, 0.0f), Vector3.Backward).FindContacts(box),
"Close miss of box on X axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f, 15.0f - outRadius, 0.0f), Vector3.Backward).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
Assert.IsNull(
new Line3(new Vector3(15.0f, 15.0f + outRadius, 0.0f), Vector3.Backward).FindContacts(box),
"Close miss of box on Y axis properly handled"
);
}
/// <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(Line3 other) {
if(other == null)
return false;
else
return (this.Offset == other.Offset) && (this.Direction == other.Direction);
}
public Line3(Line3 other) {
Offset = other.Offset;
Direction = other.Direction;
}
public Line3(Line3 other)
{
Offset = other.Offset;
Direction = other.Direction;
}
