[ncl-talk] NCL Plotting

[Barry Lynn]

Here is how you do it.

  vecres                  = True            ; vector only resources

  vecres at gsnDraw          = False           ; don't draw

  vecres at gsnFrame         = False           ; don't advance frame

  vecres at vcGlyphStyle     = "CurlyVector"   ; curly vectors

  vecres at vcRefMagnitudeF  = 20              ; define vector ref mag

  vecres at vcRefLengthF     = 0.045           ; define length of vec ref

  vecres at gsnRightString   = " "             ; turn off right string

  vecres at gsnLeftString    = " "             ; turn off left string

  vecres at tiXAxisString    = " "             ; turn off axis label

  vecres at vcRefAnnoOrthogonalPosF = -0.17    ; move ref vector into  plot


  vecres at gsnAddCyclic          = False          ; we will manually zoom in.

  plotB  = gsn_csm_vector(wks,u_new(::4,::4),v_new(::4,::4),vecres)

Then, you can overlay it onto another plot like temperature.

panres = True

panres at gsnMaximize = True

panres at gsnPanelRight = 0.98

panres at gsnPanelLeft  = 0.02

panres at gsnPaperOrientation="Portrait"

overlay(plot,plotB)

gsn_panel(wks,plot,(/1,1/),panres)


On Wed, Feb 14, 2018 at 6:53 AM, Ankita Sharma <ankita at iiserb.ac.in> wrote:

> ​​How to use "skip 4" in NCL? or How to skip vectors into grids?
>
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-- 
Barry H. Lynn, Ph.D
Senior Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

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