public ShearTriangle2D(double[] _B, double[] _C)
{
m_B = _B;
m_C = _C;
Alpha = Simplex3D.Angle(m_A, m_B, m_C);
Beta = Simplex3D.Angle(m_B, m_A.Subtract(m_B), m_C.Subtract(m_B));
Gamma = Simplex3D.Angle(m_C, m_A.Subtract(m_C), m_B.Subtract(m_C));
A = Length(m_B, m_C);
B = Length(m_A, m_C);
C = Length(m_A, m_B);
Surface = Math.PI - Alpha - Beta - Gamma;
}
public void TestAngleBetweenFacesI()
{
var randomSimplices = Simplex3D.RandomSamples(NUMBER_SAMPLES);
foreach (var randomSimplex in randomSimplices)
{
var normalABC = randomSimplex.NormalOnFace("A", "B", "C");
var normalABD = randomSimplex.NormalOnFace("A", "D", "B");
var A = randomSimplex.GetPoint("A");
var angleA = Math.PI - Simplex3D.Angle(A, normalABC, normalABD);
var normalBCA = randomSimplex.NormalOnFace("B", "C", "A");
var normalBAD = randomSimplex.NormalOnFace("B", "A", "D");
var B = randomSimplex.GetPoint("B");
var angleB = Math.PI - Simplex3D.Angle(B, normalBCA, normalBAD);
if (Math.Abs(angleA - angleB) >= TOLERANCE)
{
throw new Exception($"Deviation to high!");
}
}
}