/// <summary>
/// Скалярное произведение векторов
/// </summary>
/// <param name="a">вектора А</param>
/// <param name="b">вектор Б</param>
/// <returns>range [-1,1]</returns>
public static float Dot(Vector2F a, Vector2F b)
{
var aN = a.Normalized;
var bN = b.Normalized;
return aN.X*bN.X + aN.Y*bN.Y;
}
public void TestSumVectors()
{
var vectorB = new Vector2F(2, 16);
var vectorExpected = new Vector2F(7, 22);
var vectorActual = _vectorA + vectorB;
Assert.AreEqual(vectorExpected.X, vectorActual.X);
Assert.AreEqual(vectorExpected.Y, vectorActual.Y);
}
void FillVectors(out Vector2F a, out Vector2F b)
{
a = new Vector2F((float) AxText.Value, (float) AyText.Value);
b = new Vector2F((float) BxText.Value, (float) ByText.Value);
}
public void TestScalar(Vector2F a, float expected)
{
var actual = a.Magnitude;
Assert.AreEqual(expected, actual);
}
public void TestScalar(Vector2F a, Vector2F b, float expected)
{
var actual = Vector2F.Dot(a,b);
Assert.AreEqual(Math.Round(expected,4), Math.Round(actual,4));
}
public void TestMinusWithParams(Vector2F a, Vector2F b, Vector2F expected)
{
var actual = a - b;
Assert.AreEqual(expected,actual);
}
public void TestEquals()
{
var vectorA = new Vector2F(2,2);
var vectorB = new Vector2F(2, 2);
Assert.AreEqual(vectorA,vectorB);
}
public void SetupTests()
{
_vectorA = new Vector2F(5, 6);
}
