public void Can_be_created()
{
GeometricVector vectorOfLine = new GeometricVector(1, 2, 3);
CartesianPoint pointOnLine = new CartesianPoint(3, 4, 5);
UnboundedLine SUT = new UnboundedLine(vectorOfLine, pointOnLine);
Assert.AreEqual(vectorOfLine, SUT.Vector);
Assert.AreEqual(pointOnLine, SUT.PointOnLine);
Assert.AreEqual(vectorOfLine.X, SUT.X);
Assert.AreEqual(vectorOfLine.Y, SUT.Y);
Assert.AreEqual(vectorOfLine.Z, SUT.Z);
}
public void Can_determine_if_point_is_on_line()
{
GeometricVector vectorOfLine = new GeometricVector(2, 2, 2);
CartesianPoint pointOnLine = new CartesianPoint(3, 4, 5);
UnboundedLine SUT = new UnboundedLine(vectorOfLine, pointOnLine);
CartesianPoint aPointOnTheLine = new CartesianPoint(4, 5, 6);
CartesianPoint aPointNotOnTheLine = new CartesianPoint(3, 5, 7);
CartesianPoint aPointOnTheLineInNegativeDirectionFromDefinedPointOnLine = new CartesianPoint(2, 3, 4);
Assert.IsTrue(SUT.IsOnLine(aPointOnTheLine));
Assert.IsFalse(SUT.IsOnLine(aPointNotOnTheLine));
Assert.IsTrue(SUT.IsOnLine(aPointOnTheLineInNegativeDirectionFromDefinedPointOnLine));
}
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);
}