Dear Radha, I was thinking that maybe what you need is to basically create your one symbols that will be plot around the date set. You can try a code similar to the following: pro my_symbol sym_vertices_x=[1.2,-0.8,-1.2,0.8] *2.0 sym_vertices_y=[1,1,-1,-1] *2.0 ;Then create the object that will be a filled tilted squared shape: omy_symb=obj_new('IDLgrPOLYGON',sym_vertices_x,sym_vertices_y) ;And at last you can call iplot with the keyword "SYM_OBJECT": iplot, findgen(5), SYM_OBJECT=omy_symb end This code generates a filled tilted squared shape around each data set. In my next answer I will send you the same example but with transparent empty recatangles instead. Best regards, Fernando