+ Rod rod;
+
+ Interval li (Separation_item::my_width (l));
+ Interval ri (Separation_item::my_width (r));
+
+ rod.item_l_drul_[LEFT] =l;
+ rod.item_l_drul_[RIGHT]=r;
+
+ if (li.empty_b () || ri.empty_b ())
+ rod.distance_f_ = 0;
+ else
+ rod.distance_f_ = li[RIGHT] - ri[LEFT];
+
+ rod.columnize ();
+ rod.add_to_cols ();
+}
+
+MAKE_SCHEME_CALLBACK (Separating_group_spanner,set_spacing_rods,1);
+SCM
+Separating_group_spanner::set_spacing_rods (SCM smob)
+{
+ Grob*me = unsmob_grob (smob);