public void TestWeightedInterpolation()
{
var target = new IdwInterpolator(dimensions: 2, power: 2, numberOfNeighbours: 4);
foreach (var point in _pointRange)
{
target.AddPoint(point.Value, point.Coordinates); // Test adding bare values.
}
var result = target.Interpolate(1.5, 1.5);
Assert.AreEqual(2.875, result.Value, 0.001);
Assert.AreEqual(InterpolationResult.ResultOptions.Interpolated, result.Result);
Assert.IsNull(result.Point);
}
public void TestNearestNeighbourInterpolation()
{
var target = new IdwInterpolator(dimensions: 2, power: 2, numberOfNeighbours: 1);
foreach (var point in _pointRange)
{
target.AddPoint(point); // Test adding points.
}
var result = target.Interpolate(1.1, 1.1);
Assert.AreEqual(2.2, result.Value);
Assert.AreEqual(1, result.Point.Value.Coordinates[0]);
Assert.AreEqual(1, result.Point.Value.Coordinates[1]);
Assert.AreEqual(InterpolationResult.ResultOptions.NearestNeighbor, result.Result);
}
public void FailWithPointAndCoordinatesWithWrongDimension()
{
var target = new IdwInterpolator(dimensions: 2, power: 2, numberOfNeighbours: 5);
target.AddPoint(1, 1, 1, 1); // One dimension too much.
}
public void FailWithPointAndMissingCoordinates()
{
var target = new IdwInterpolator(dimensions: 2, power: 2, numberOfNeighbours: 5);
target.AddPoint(1, null); // Coordinates missing.
}
public void FailWithPointAndCoordinatesWithWrongDimension()
{
var target = new IdwInterpolator(dimensions: 2, power: 2, numberOfNeighbours: 5);
Assert.Throws <ArgumentException>(() => target.AddPoint(1, 1, 1, 1)); // One dimension too much.
}
public void FailWithPointAndMissingCoordinates()
{
var target = new IdwInterpolator(dimensions: 2, power: 2, numberOfNeighbours: 5);
Assert.Throws <ArgumentNullException>(() => target.AddPoint(1, null)); // Coordinates missing.
}