Function do_segments_intersect

src/ifcgeom/kernels/cgal/CgalKernel.cpp:553–563

	};

	bool do_segments_intersect(const std::vector<Kernel_::Segment_3>& segments) {
		std::vector<Box> boxes;
		std::vector<int> handles(segments.size());
		std::iota(handles.begin(), handles.end(), 0);
		for (auto it = segments.begin(); it != segments.end(); ++it) {
			boxes.push_back(Box(it->bbox(), &*(handles.begin() + std::distance(segments.begin(), it))));
		}
		intersection_collector x(segments);
		CGAL::box_self_intersection_d(boxes.begin(), boxes.end(), x);
		return !!x.num_self_intersections;
	}
}

namespace {