can't overlay two filled contours?

Hello, all!

I am overlaying filled contours on a map (basic overlay procedure, see
below).

The different plots cover different regions of my map.

If I plot one with filled contours and the other without filled contours
(only lines) then it works!

If I try to plot them both with filled contours, only the last one to be
overlaid appears in the final plot, it's overwriting the first plot that
was overlaid!

Has anyone run into this?!

Any help appreciated!

Thank you very much
Paula

*map=gsn_csm_map(wks,mpres)*
*plot1=gsn_csm_contour(wks,data1,res1)*
*plot2=gsn_csm_contour(wks,data2,res2)*
*
*
*overlay(map,plot1)*
*overlay(map,plot2)*
*
*
*draw(map)*
*frame(wks)*

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Received on Thu Oct 24 18:38:32 2013