Method intersect

dlib/geometry/rectangle.h:195–205

        }

        rectangle intersect (
            const rectangle& rhs
        ) const
        {
            return rectangle (
                std::max(l,rhs.l),
                std::max(t,rhs.t),
                std::min(r,rhs.r),
                std::min(b,rhs.b)
                );
        }

        bool contains (
            const point& p