adding a few lines on a contour plot

Hi,

Can someone tell me how to add a few straight lines (or a square box)
in a contour plot?
What I want for the box is show an area where a nest domain locates.

Thanks.

Chin-Hoh
_______________________________________________
ncl-talk mailing list
ncl-talk_at_ucar.edu
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
Received on Thu Apr 20 2006 - 16:13:28 MDT