Method rangeSetIfEmpty

source/core/StarRect.hpp:415–420

template <typename T, size_t N>
void Box<T, N>::rangeSetIfEmpty(Box const& b) {
  for (size_t i = 0; i < N; ++i) {
    if (m_max[i] <= m_min[i])
      setRange(i, b.range(i));
  }
}

template <typename T, size_t N>
void Box<T, N>::makeCube() {