overlay in panel plot

hi,

i am using plot.append command to plot figures in panel plot and i need
to use overlay properties in each panel. is it possible to use overlay
properties in panel plot. how can i do this ?

the example usage (without overlay),
plot.append(Ngl.contour_map(wks, tr_trj, res1))

failed example (for overlay plot),
plot0 = Ngl.map(wks, res)
plot1 = Ngl.contour(wks, tr_trj, res1)
plot3 = Ngl.add_polymarker(wks, plot0, lon[xb,yb], lat[xb,yb], res3)
plot.append(Ngl.overlay(plot0,plot1))

best regards,

Ufuk Utku Turuncoglu
ITU, Informatics Institute
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Received on Tue Nov 28 2006 - 06:03:18 MST