public void FromXToXY_WithReferencePointOffsetAndRotation_ReturnsCoordinatesFromReferencePoint()
{
// Setup
const double center = 5.0;
double[] xCoordinates =
{
center - Math.Sqrt(8),
center,
center + Math.Sqrt(2)
};
var referencePoint = new Point2D(3, 4);
const double offset = 5;
const double rotation = 45;
// Call
IEnumerable <Point2D> points = AdvancedMath2D.FromXToXY(xCoordinates, referencePoint, offset, rotation);
// Assert
CollectionElementsAlmostEquals(new[]
{
new Point2D(1, 2),
new Point2D(3, 4),
new Point2D(4, 5)
}, points);
}
public void FromXToXY_NoPoints_ReturnsEmptyCollection()
{
// Call
IEnumerable <Point2D> points = AdvancedMath2D.FromXToXY(new double[0], new Point2D(0, 0), 3, 2);
// Assert
CollectionAssert.IsEmpty(points);
}
private static IEnumerable <Point2D> GetWorldPoints(ForeshoreProfile foreshoreProfile)
{
return(AdvancedMath2D.FromXToXY(
foreshoreProfile.Geometry.Select(p => - p.X).ToArray(),
foreshoreProfile.WorldReferencePoint,
-foreshoreProfile.X0,
foreshoreProfile.Orientation));
}
private static IEnumerable <Point2D> GetWorldPoints(DikeProfile dikeProfile)
{
return(AdvancedMath2D.FromXToXY(
dikeProfile.DikeGeometry.Select(p => - p.Point.X),
dikeProfile.WorldReferencePoint,
-dikeProfile.X0,
dikeProfile.Orientation));
}
public void FromXToXY_WithoutReferencePoint_ThrowsArgumentNullException()
{
// Call
void Call() => AdvancedMath2D.FromXToXY(new double[0], null, 3, 2);
// Assert
var exception = TestHelper.AssertThrowsArgumentExceptionAndTestMessage <ArgumentNullException>(
Call, "Cannot transform to coordinates without a reference point.");
Assert.AreEqual("referencePoint", exception.ParamName);
}
public void FromXToXY_WithoutPoints_ThrowsArgumentNullException()
{
// Call
void Call() => AdvancedMath2D.FromXToXY(null, new Point2D(0, 0), 3, 2);
// Assert
var exception = TestHelper.AssertThrowsArgumentExceptionAndTestMessage <ArgumentNullException>(
Call, "Cannot transform to coordinates without a source.");
Assert.AreEqual("xCoordinates", exception.ParamName);
}
public void FromXToXY_WithRotation180_ReturnsCoordinatesOnNegativeYAxis()
{
// Setup
double[] xCoordinates = ThreeRandomXCoordinates();
var referencePoint = new Point2D(0, 0);
// Call
IEnumerable <Point2D> points = AdvancedMath2D.FromXToXY(xCoordinates, referencePoint, 0, 180);
// Assert
CollectionElementsAlmostEquals(xCoordinates.Select(x => new Point2D(0, -x)), points);
}
public void FromXToXY_WithOffset_ReturnsCoordinatesNearerToOrigin()
{
// Setup
double[] xCoordinates = ThreeRandomXCoordinates();
var referencePoint = new Point2D(0, 0);
int offset = new Random(21).Next();
// Call
IEnumerable <Point2D> points = AdvancedMath2D.FromXToXY(xCoordinates, referencePoint, offset, 0);
// Assert
CollectionElementsAlmostEquals(xCoordinates.Select(x => new Point2D(0, x - offset)), points);
}
public void FromXToXY_WithReferencePoint_ReturnsCoordinatesFromReferencePoint()
{
// Setup
var random = new Random(21);
double[] xCoordinates = ThreeRandomXCoordinates();
var referencePoint = new Point2D(random.NextDouble(), random.NextDouble());
// Call
IEnumerable <Point2D> points = AdvancedMath2D.FromXToXY(xCoordinates, referencePoint, 0, 0);
// Assert
CollectionElementsAlmostEquals(xCoordinates.Select(x => new Point2D(referencePoint.X, referencePoint.Y + x)), points);
}