Пример #1
0
//returns area( triangle(a, b ,c) )
float area(const fvec &a, const fvec &b, const fvec &c)
{
    float area = doubleArea(a, b, c);
    area /= 2.0;

    return area;
}
Пример #2
0
  int Polygon::area() const
  {
    Q_D(const Polygon);
    if (d->m_area < 0)
    {
      d->m_area = doubleArea(d->m_points);
    }

    return d->m_area;
  }