public void ValueTest()
{
BilinearInterpolator target = new BilinearInterpolator();
IPoint point = new Point2D(4, 2, 0);
List <IPoint> bounds = new List <IPoint>();
bounds.Add(new Point2D(2, 1, 9));
bounds.Add(new Point2D(6, 1, 13));
bounds.Add(new Point2D(2, 3, 7));
bounds.Add(new Point2D(6, 3, 11));
double expected = 10;
double actual = target.Value(point, bounds);
Assert.AreEqual(expected, actual);
bounds = new List <IPoint>();
bounds.Add(new Point2D(2, 1, 3));
bounds.Add(new Point2D(6, 1, 7));
bounds.Add(new Point2D(2, 3, 5));
bounds.Add(new Point2D(6, 3, 9));
expected = 6;
actual = target.Value(point, bounds);
Assert.AreEqual(expected, actual);
}
public void ValueTest1()
{
BilinearInterpolator target = new BilinearInterpolator();
// Create the point to interpolate at
IPoint point = new Point2D(4, 2, 0);
// Create the bounding points
List <IPoint> bounds = new List <IPoint>();
bounds.Add(new Point2D(3, 1, 3));
bounds.Add(new Point2D(5, 1, 9));
bounds.Add(new Point2D(3, 3, 7));
bounds.Add(new Point2D(5, 3, 13));
// Set the expected value
double expected = 8;
// Interpolate at the point and test result
double actual = target.Value(point, bounds);
Assert.AreEqual(expected, actual);
// Create the point to interpolate at
point = new Point2D(4, 3, 0);
// Create the bounding points
bounds = new List <IPoint>();
bounds.Add(new Point2D(2, 2, 2));
bounds.Add(new Point2D(5, 2, 11));
bounds.Add(new Point2D(2, 4, 6));
bounds.Add(new Point2D(5, 4, 15));
// Set the expected value
expected = 10;
// Interpolate at the point and test result
actual = target.Value(point, bounds);
Assert.AreEqual(expected, actual);
// Test the boundary condition xy > x1y1
// Create the point to interpolate at
point = new Point2D(5, 5, 0);
// Create the bounding points
bounds = new List <IPoint>();
bounds.Add(new Point2D(4, 3, 10));
bounds.Add(new Point2D(5, 3, 13));
bounds.Add(new Point2D(4, 4, 12));
bounds.Add(new Point2D(5, 4, 15));
// Set the expected value
expected = 15.0d;
// Interpolate at the point and test result
actual = target.Value(point, bounds);
Assert.AreEqual(expected, actual);
}