public double DistanceTo(Point3D point3D)
{
double a = point3D.X - X;
double b = point3D.Y - Y;
double c = point3D.Z - Z;
return Math.Sqrt(a * a + b * b + c * c);
}
public Point3D Add(Point3D point3D)
{
X += point3D.X;
Y += point3D.Y;
Z += point3D.Z;
return this;
}
public bool Equals(Point3D p)
{
if (ReferenceEquals(null, p))
return false;
if (ReferenceEquals(this, p))
return true;
return p.X.Equals(X) && p.Y.Equals(Y) && p.Z.Equals(Z);
}