public double Sqr(Romb obj)
{
double sqr;
double A = Math.Sqrt(Math.Pow(obj.Point[3, 0] - obj.Point[0, 0], 2.0) + Math.Pow(obj.Point[3, 1] - obj.Point[0, 1], 2.0));
double B = Math.Sqrt(Math.Pow(obj.Point[2, 0] - obj.Point[1, 0], 2.0) + Math.Pow(obj.Point[2, 1] - obj.Point[1, 1], 2.0));
double h = obj.Point[1, 1] - obj.Point[0, 1];
sqr = ((A + B) / 2) * h;
return(sqr);
}
public double Per(Romb obj)
{
double per;
double A = Math.Sqrt(Math.Pow(obj.Point[3, 0] - obj.Point[0, 0], 2.0) + Math.Pow(obj.Point[3, 1] - obj.Point[0, 1], 2.0));
double B = Math.Sqrt(Math.Pow(obj.Point[2, 0] - obj.Point[1, 0], 2.0) + Math.Pow(obj.Point[2, 1] - obj.Point[1, 1], 2.0));
double C = Math.Sqrt(Math.Pow(obj.Point[1, 0] - obj.Point[0, 0], 2.0) + Math.Pow(obj.Point[1, 1] - obj.Point[0, 1], 2.0));
double D = Math.Sqrt(Math.Pow(obj.Point[2, 0] - obj.Point[3, 0], 2.0) + Math.Pow(obj.Point[2, 1] - obj.Point[3, 1], 2.0));
per = A + B + C + D;
return(per);
}
static void Main(string[] args)
{
Romb obj = new Romb(-1, -3, 1, 2, 3, -3, 1, -8);
double[] P1 = obj.Cords(1);
double[] P2 = obj.Cords(2);
double[] P3 = obj.Cords(3);
double[] P4 = obj.Cords(4);
double per = obj.Per(obj);
double sqr = obj.Sqr(obj);
double lenth = obj.Len(1, 2);
}