public override void validate()
{
if (2 * Sides.Max() >= Sides.Sum())
{
throw new ArgumentException("Not a figure");
}
}
/// <summary>
/// initialize a square through one or three sides and other skin figure.
/// </summary>
/// <param name="sidesCollection">Three sides</param>
/// <param name="figure">Other skin figure</param>
public TrianglePellicle(IEnumerable <double> sidesCollection, IPellicleFigure figure) : base(sidesCollection)
{
double area = Math.Sqrt((Sides.Sum() / 2) * ((Sides.Sum() / 2) - Sides[0]) * ((Sides.Sum() / 2) - Sides[1]) * ((Sides.Sum() / 2) - Sides[2]));
if (area > figure.GetArea())
{
throw new ArgumentException();
}
}
/// <summary>
/// Constructor to initialize a square through one or three sides and other skin figure.
/// </summary>
/// <param name="sidesCollection">Three sides</param>
/// <param name="figure">Other skin figure</param>
public SkinTriangle(IEnumerable <double> sidesCollection, ISkinFigure figure) : base(sidesCollection)
{
double halfPerimetr = Sides.Sum() / 2;
double area = Math.Sqrt(halfPerimetr * (halfPerimetr - Sides[0]) * (halfPerimetr - Sides[1]) * (halfPerimetr - Sides[2]));
if (area > figure.GetArea())
{
throw new ArgumentException("You cannot create a shape because the original shape is smaller.");
}
}
public override double area()
{
validate();
if (2 * Sides.Max() >= Sides.Sum())
{
throw new ArgumentException("Not a figure");
}
if (Math.Pow(Sides.Max(), 2) * 2 == Math.Pow(Sides[0], 2) + Math.Pow(Sides[1], 2) + Math.Pow(Sides[2], 2))
{
return(Sides[0] * Sides[1] * Sides[2] / Sides.Max() / 2);
}
double hper = Sides.Sum() / 2;
return(Math.Sqrt(hper * (hper - Sides[0]) * (hper - Sides[1]) * (hper - Sides[2])));
}
public override double FindPerimeter()
{
return(Sides.Sum());
}
public override double CalculateArea()
{
double p = Sides.Sum() / 2;
return(Math.Sqrt(p * (p - Sides[0]) * (p - Sides[1]) * (p - Sides[2])));
}
public override double CalculatePerimeter()
{
return(Sides.Sum());
}