public void Divide()
{
var p1 = new Vec(1, 2, 3);
Assert.AreEqual(new Vec(0.5, 1, 1.5), p1.Divided(2));
p1.Divide(2);
Assert.AreEqual(new Vec(0.5, 1, 1.5), p1);
}
public void ValueType_Vec()
{
var p1 = new Vec(1, 0, 0);
var p2 = new Vec(0, 1, 0);
Assert.IsFalse(p1.IsEqual(p2, 0.99, 0.1));
Assert.IsTrue(p1.IsEqual(p2, 1.01, 0.1));
Assert.IsTrue(p1.IsEqual(p2, 0.99, Math.PI / 2));
Assert.IsTrue(p1.IsNormal(p2, 0.1));
Assert.IsFalse(p1.IsOpposite(p2, 0.1));
Assert.IsTrue(p1.IsOpposite(p2, Math.PI / 2));
Assert.IsFalse(p1.IsParallel(p2, 0.1));
Assert.IsTrue(p1.IsParallel(p2, Math.PI / 2));
p1 = new Vec(1, 2, 3);
p2 = new Vec(4, 5, 6);
Assert.AreEqual(14, p1.SquareMagnitude());
Assert.AreEqual(Math.Sqrt(14), p1.Magnitude());
p2 = p1;
p2.Add(new Vec(1, 2, 3));
Assert.AreEqual(new Vec(2, 4, 6), p2);
Assert.AreEqual(new Vec(2, 4, 6), p1.Added(new Vec(1, 2, 3)));
p2 = new Vec(1, 2, 3);
p2.Subtract(new Vec(3, 2, 1));
Assert.AreEqual(new Vec(-2, 0, 2), p2);
Assert.AreEqual(new Vec(-2, 0, 2), p1.Subtracted(new Vec(3, 2, 1)));
p2 = new Vec(1, 2, 3);
p2.Cross(new Vec(3, 2, 1));
Assert.AreEqual(new Vec(-4, 8, -4), p2);
Assert.AreEqual(new Vec(-4, 8, -4), p1.Crossed(new Vec(3, 2, 1)));
Assert.AreEqual(Math.Sqrt(96), p1.CrossMagnitude(new Vec(3, 2, 1)));
Assert.AreEqual(96, p1.CrossSquareMagnitude(new Vec(3, 2, 1)));
p2 = new Vec(1, 2, 3);
p2.CrossCross(new Vec(1, 2, 3), new Vec(4, 5, 6));
Assert.AreEqual(new Vec(-24, -6, 12), p2);
Assert.AreEqual(new Vec(-24, -6, 12), p1.CrossCrossed(new Vec(1, 2, 3), new Vec(4, 5, 6)));
p2 = new Vec(1, 2, 3);
p2.Divide(2);
Assert.AreEqual(new Vec(0.5, 1, 1.5), p2);
Assert.AreEqual(new Vec(0.5, 1, 1.5), p1.Divided(2));
Assert.AreEqual(14, p1.Dot(new Vec(1, 2, 3)));
Assert.AreEqual(0, p1.DotCross(new Vec(4, 5, 6), new Vec(4, 5, 6)));
p2 = new Vec(1, 2, 3);
p2.Multiply(2);
Assert.AreEqual(new Vec(2, 4, 6), p2);
Assert.AreEqual(new Vec(2, 4, 6), p1.Multiplied(2));
p2 = new Vec(1, 2, 3);
p2.Scale(2);
Assert.AreEqual(new Vec(2, 4, 6), p2);
Assert.AreEqual(new Vec(2, 4, 6), p1.Scaled(2));
p2 = new Vec(1, 2, 3);
p2.Normalize();
Assert.IsTrue(p2.IsEqual(new Vec(0.26726, 0.53452, 0.80178), 0.00001, 0.00001));
Assert.IsTrue(p1.Normalized().IsEqual(new Vec(0.26726, 0.53452, 0.80178), 0.00001, 0.00001));
p2 = new Vec(1, 2, 3);
p2.Reverse();
Assert.AreEqual(new Vec(-1, -2, -3), p2);
Assert.AreEqual(new Vec(-1, -2, -3), p1.Reversed());
p2.SetLinearForm(new Vec(1, 2, 3), new Vec(4, 5, 6));
Assert.AreEqual(new Vec(5, 7, 9), p2);
p2.SetLinearForm(2, new Vec(1, 2, 3), new Vec(4, 5, 6));
Assert.AreEqual(new Vec(6, 9, 12), p2);
p2.SetLinearForm(2, new Vec(1, 2, 3), 3, new Vec(4, 5, 6));
Assert.AreEqual(new Vec(14, 19, 24), p2);
p2.SetLinearForm(2, new Vec(1, 2, 3), 3, new Vec(4, 5, 6), new Vec(7, 8, 9));
Assert.AreEqual(new Vec(21, 27, 33), p2);
p2.SetLinearForm(2, new Vec(1, 2, 3), 3, new Vec(4, 5, 6), 4, new Vec(7, 8, 9));
Assert.AreEqual(new Vec(42, 51, 60), p2);
p2.SetLinearForm(2, new Vec(1, 2, 3), 3, new Vec(4, 5, 6), 4, new Vec(7, 8, 9), new Vec(10, 11, 12));
Assert.AreEqual(new Vec(52, 62, 72), p2);
p2 = new Vec(2, 0, 0);
p2.Mirror(new Vec(0, 1, 0));
Assert.AreEqual(new Vec(-2, 0, 0), p2);
Assert.AreEqual(new Vec(2, 0, 0), p2.Mirrored(new Vec(0, 1, 0)));
var m2 = new Ax1(new Pnt(-1, 2, -3), new Dir(-1, 0, 0));
p2 = new Vec(2, 1, 3);
Assert.AreEqual(new Vec(2, -1, -3), p2.Mirrored(m2));
p2.Mirror(m2);
Assert.AreEqual(new Vec(2, -1, -3), p2);
var a2 = new Ax2(new Pnt(-1, 2, -3), new Dir(-1, 0, 0));
p2 = new Vec(2, 1, 3);
Assert.AreEqual("-2,1,3", p2.Mirrored(a2).ToString());
p2.Mirror(a2);
Assert.AreEqual("-2,1,3", p2.ToString());
p2 = new Vec(2, 1, 3);
Assert.IsTrue(new Vec(2, 3, -1).IsEqual(p2.Rotated(m2, Math.PI / 2), 0.0001, 0.0001));
p2.Rotate(m2, Math.PI / 2);
Assert.IsTrue(new Vec(2, 3, -1).IsEqual(p2, 0.0001, 0.0001));
//TestContext.WriteLine(string.Format(CultureInfo.InvariantCulture, "{0},{1},{2}", gp2.x, gp2.y, gp2.z));
Trsf t1 = new Trsf();
t1.SetRotation(Ax1.OZ, Math.PI / 2);
p2 = new Vec(4, 5, 6);
Assert.AreEqual("-5,4,6", p2.Transformed(t1).ToString());
p2.Transform(t1);
Assert.AreEqual("-5,4,6", p2.ToString());
}