FYI: the following reply was sent directly to me:
>>I was trying to plot amplitudes using colored points to indicate different
>>amplitude levels. Thanks,
You would have to be a bit more specific but here
are a couple of examples.
see:. http://www.cgd.ucar.edu/csm/support/CSM_Graphics/polyg.shtml
[see example 4]
You can design your own marker if you do not like the standard selection.
[see example 7]
Also, in the loop below u could change marker indices (styles)
rather than have one marker style
==========================================================
[add to previous post: a map has been created ==> plot]
;********************************
; plot original data
;********************************
polyres = True
polyres@gsMarkerIndex = 16 ; polymarker style
polyres@gsMarkerSizeF = 5. ; polymarker size
do n=0,dimsizes(amp)-1
if (amp(n).gt.0. .and. amp(n).lt.0.33) then
polyres@gsMarkerColor ="green"
end if
if (amp(n).ge.0.33 .and. amp(n).lt.0.67) then
polyres@gsMarkerColor ="blue"
end if
if (amp(n).ge.0.67 .and. amp(n).lt.1.00) then
polyres@gsMarkerColor ="red"
end if
[etc]
gsn_polymarker(wks,plot,lon(n),lat(n),polyres)
end do
draw(plot)
frame(wks)
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