public MyTriangle(MyPoint a, MyPoint b, MyPoint c)
{
A = a;
B = b;
C = c;
halfPeriment = (A.getDistance(B) + A.getDistance(C) + B.getDistance(C)) / 2;
square = Math.Pow((halfPeriment * (halfPeriment - A.getDistance(B)) * (halfPeriment - A.getDistance(C)) * (halfPeriment - B.getDistance(C))), 0.5);
}
public bool is_between(MyPoint one, MyPoint two)
{
double exp1 = getDistance(one) + getDistance(two);
double exp2 = one.getDistance(two);
double exp3 = exp1 - exp2;
if (exp3 < 0)
exp3 *= -1;
return exp3 < coefficient_error;
}