static void setup(geometry_type & geom, Args const& args)
 {
     typename boost::mpl::at<Args,boost::mpl::int_<2> >::type sym = boost::fusion::at_c<2>(args);
     auto const& feat = boost::fusion::at_c<6>(args);
     auto const& vars = boost::fusion::at_c<7>(args);
     geom.set_simplify_algorithm(static_cast<simplify_algorithm_e>(get<value_integer>(sym, keys::simplify_algorithm, feat, vars)));
     geom.set_simplify_tolerance(get<value_double>(sym, keys::simplify_tolerance, feat, vars));
 }

 static void setup(geometry_type & geom, Args const& args)
 {
     typename boost::mpl::at<Args,boost::mpl::int_<2> >::type sym = boost::fusion::at_c<2>(args);
     stroke const& stroke_ = sym.get_stroke();
     set_join_caps(stroke_,geom);
     geom.generator().miter_limit(stroke_.get_miterlimit());
     double scale_factor = boost::fusion::at_c<6>(args);
     geom.generator().width(stroke_.get_width() * scale_factor);
 }