public void AnglesSumOfTriangle2d()
{
double actual = NSpaces.NSphereSurfaceArea(2, 1) / 2;
var rand = new Random();
var vertexes = new List <Vector <double> >()
{
new DenseVector(new[] { rand.NextDouble(), rand.NextDouble() }),
new DenseVector(new[] { rand.NextDouble(), rand.NextDouble() }),
new DenseVector(new[] { rand.NextDouble(), rand.NextDouble() }),
};
var angle1Vectors = new List <Vector <double> >()
{
vertexes[1] - vertexes[0],
vertexes[2] - vertexes[0],
};
var angle2Vectors = new List <Vector <double> >()
{
vertexes[0] - vertexes[1],
vertexes[2] - vertexes[1],
};
var angle3Vectors = new List <Vector <double> >()
{
vertexes[0] - vertexes[2],
vertexes[1] - vertexes[2],
};
double real = Math.Abs(NSpaces.SolidAngle(angle1Vectors)) + Math.Abs(NSpaces.SolidAngle(angle2Vectors)) + Math.Abs(NSpaces.SolidAngle(angle3Vectors));
Assert.IsTrue(Math.Abs(actual - real) <= Epsilon);
}
public void RightAngleDiv2Test2d()
{
double actual = NSpaces.NSphereSurfaceAreaOrtVectors(2) / 2;
var vectors = new List <Vector <double> >()
{
new DenseVector(new[] { 1.0, 0.0 }),
new DenseVector(new[] { 1.0, 1.0 }),
};
double real = NSpaces.SolidAngle(vectors);
Assert.IsTrue(Math.Abs(actual - real) <= Epsilon);
}
