Function get_opposite_vertex

tools/CGAL/SelfIntersection.cpp:54–59

    }

    size_t get_opposite_vertex(const Vector3I& f, const Vector2I& e) {
        if (f[0] != e[0] && f[0] != e[1]) return f[0];
        if (f[1] != e[0] && f[1] != e[1]) return f[1];
        if (f[2] != e[0] && f[2] != e[1]) return f[2];
        throw RuntimeError("Face must be topologically degnerated!");
    }

    std::vector<Box> get_triangle_bboxes(
            const SelfIntersection::Points& pts, const MatrixIr& faces) {