public void Can_calculate_perpendicular_line_to_a_point()
{
GeometricVector vectorOfLine = new GeometricVector(2, 2, 0);
CartesianPoint pointOnLine = new CartesianPoint(3, 4, 5);
UnboundedLine SUT = new UnboundedLine(vectorOfLine, pointOnLine);
CartesianPoint perpendicularPoint = new CartesianPoint(3, 6, 5);
BoundedLine result = SUT.PerpendicularLineTo(perpendicularPoint);
Assert.AreEqual(-1, result.X);
Assert.AreEqual(1, result.Y);
Assert.AreEqual(0, result.Z);
Assert.AreEqual(4, result.Start.X);
Assert.AreEqual(5, result.Start.Y);
Assert.AreEqual(5, result.Start.Z);
}
public void Can_determine_if_point_is_on_the_line()
{
vectorOfLine = new GeometricVector(2, 2, 2);
startPoint = new CartesianPoint(3, 4, 5);
SUT = new BoundedLine(startPoint, vectorOfLine);
CartesianPoint pointOnTheLine = new CartesianPoint(4, 5, 6);
CartesianPoint pointAtEndOfLine = new CartesianPoint(5, 6, 7);
CartesianPoint pointAtStartOfLine = new CartesianPoint(3, 4, 5);
CartesianPoint pointBeyondEndOfLine = new CartesianPoint(6, 7, 8);
CartesianPoint pointBeyondStartOfLine = new CartesianPoint(2, 3, 4);
Assert.IsTrue(SUT.IsOnLine(pointOnTheLine));
Assert.IsTrue(SUT.IsOnLine(pointAtEndOfLine));
Assert.IsTrue(SUT.IsOnLine(pointAtStartOfLine));
Assert.IsFalse(SUT.IsOnLine(pointBeyondEndOfLine));
Assert.IsFalse(SUT.IsOnLine(pointBeyondStartOfLine));
}
public void Can_be_constructed_from_start_and_end_points()
{
SUT = new BoundedLine(startPoint, vectorOfLine);
Assert.AreEqual(2, SUT.X);
Assert.AreEqual(3, SUT.Y);
Assert.AreEqual(4, SUT.Z);
Assert.AreEqual(2, SUT.Vector.X);
Assert.AreEqual(3, SUT.Vector.Y);
Assert.AreEqual(4, SUT.Vector.Z);
Assert.AreEqual(3, SUT.Start.X);
Assert.AreEqual(4, SUT.Start.Y);
Assert.AreEqual(5, SUT.Start.Z);
Assert.AreEqual(5, SUT.End.X);
Assert.AreEqual(7, SUT.End.Y);
Assert.AreEqual(9, SUT.End.Z);
}
public void SetUp()
{
vectorOfLine = new GeometricVector(2, 3, 4);
startPoint = new CartesianPoint(3, 4, 5);
SUT = new BoundedLine(startPoint, vectorOfLine);
}
