Draw mark GrADS

draw mark marktype x y size

Draws a marker of type marktype at position x, y at the requested size. The marktype may be one of the following:

*draw symbol with differen colors 
        ga-> set line 3                                   …. set mark’s color=3 (P. 46)
        ga-> draw mark 2 4.5 6.5 0.3            … draw mark 3 (= open circle) at (4.5, 6.5) with size 0.3
                                                                              [Table for mark number]
* draw lines (p. 45)
        ga-> set line 3 1 4                            …. set line color=3, style=1, and thickness=4 (1~6) (P. 46)
        ga-> draw line 4.0 6.0 4.5 6.5            … draw line from (4.0, 6.0) to (4.5, 6.5)