bin/gpview in gphys-1.5.3 vs bin/gpview in gphys-1.5.4

@@ -940,10 +940,10 @@
         eval "g = g.#{$OPT_operation}"
       end
 
       # judge draw kind
       unless kind_of_fig
-        gp_rank = g.rank
+        gp_rank = g.rank_len_ne_1
         if ($OPT_mark)
           kind_of_fig = "mark"
         elsif ($OPT_line || gp_rank == 1)
           kind_of_fig = "line"
         elsif (!$OPT_line && gp_rank >= 2) && !$OPT_noshade && $OPT_nocont