search for: overstruck

Hi, I have a plot with type="o", or overstruck. Now I am trying to add the legend, but I couldn't figure out how to show the overstruck type in the legend. It seems that the legend only allows one to set lty. Does anyone know how to show overstruck in the legend? Thanks! -- Tom [[alternative HTML version deleted]]

Dear all, is there any function to calculate the center of a polygon mass in R? Actually I need to find the best location within polygons to place labels. Thanks for any hint Jens Oehlschl?gel -- COMPUTERBILD 15/03: Premium-e-mail-Dienste im Test\ --------...{{dropped}}