Function loop_to_path

tools/Boolean/Clipper/ClipperEngine.cpp:84–92

    const int PointConvert::FACTOR = 1<<23;

    ClipperLib::Path loop_to_path(const MatrixFr& vertices, const Loop& loop) {
        ClipperLib::Path path;
        for (auto i : loop) {
            path.push_back(
                    PointConvert::point_to_int_point(
                        vertices.row(i)));
        }
        return path;
    }

    Loop path_to_loop(const ClipperLib::Path& path,
            std::list<Vector2F>& vertices) {