public void TestCalculateCartesianDistance(double x1, double y1, double x2, double y2, double expectedDistance)
{
var point1 = new Point(x1, y1);
var point2 = new Point(x2, y2);
var geometryUtilities = new GeometryUtilities();
var distance = geometryUtilities.CalculateCartesianDistance(point1, point2);
Assert.LessOrEqual(Math.Abs(distance - expectedDistance), Epsilon);
}
public void TestGetVertices(int numSides, int sideLength)
{
var geometryUtilities = new GeometryUtilities();
var polygon = new RegularPolygon(numSides, sideLength, new Point(0, 0), new Angle(0, MeasurementType.Radians));
var actualPoints = polygon.Vertices.ToArray();
var expectedPoints = numSidesToPointOrientationDictionary[numSides].ToArray();
Assert.AreEqual(expectedPoints.Length, actualPoints.Length);
for (int i = 0; i < actualPoints.Length; i++)
{
Assert.LessOrEqual(Math.Abs(expectedPoints[0].Radians - actualPoints[0].Theta.Radians), Epsilon);
Assert.LessOrEqual(
Math.Abs(geometryUtilities.CalculateCartesianDistance(actualPoints[i], actualPoints[(i + 1) % numSides]) - 2),
Epsilon
);
Assert.LessOrEqual(
Math.Abs(actualPoints[i].R - (double)sideLength / (2 * Math.Sin(Math.PI / (double)numSides))),
Epsilon
);
}
}
