question about controlling number of streamlines in streamplot

Hi there,

         I tried to make a streamline plot overlapped with a contour plot
using NCL (gsn_csm_streamline_contour_map_ce). It turned out the
streamlines are too dense so I wanna readuce the number of streamlines. I
tried to use

res@stMinLevelValF = 0
res@stMaxLevelValF = 10
res@stLevelSpacingF = 2
res@stLevelSelectionMode = "ManualLevels"

         It had no improve at all. Seems all these settings were ignored. I
also tried to use "AutomaticLevels" and set res@stLevelSpacingF, or
"EqualSpacedLevels" and set res@stMaxLevelCount. None of them works as I
expected. So I guess I must miss something here. Anyone has similar
experience and are willing to help me out? Thanks a lot.

         Xianglei

-------------------------------------------------
Xianglei Huang
Princeton AOS Postdoctoral Research Associate
NOAA Geophysical Fluid Dynamics Laboratory
Princeton University Forrestal Campus
201 Forrestal Road
Princeton, NJ 08540

xianglei.huang_at_noaa.gov, xianglei_at_princeton.edu
609-452-6500 extension 6951 (office)
609-987-5063 (fax)
http://www.princeton.edu/~xianglei
-------------------------------------------------

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Received on Mon Jan 09 2006 - 14:15:50 MST