Dear all,
I am able to rotate a contour plot according to the following example:
http://www.ncl.ucar.edu/Applications/Scripts/rotatedltln_1.ncl
But I am looking a way to rotate a vector plot. I used all the graphic
interfaces for streamlines and vector ("gsm_csm_* ). But they are failed to
have a similar capability as "gsm_csm_contour_map" does. It seems difficult
to rotate a vector then scalar plot, I think.
If you don't mind to direct me to any "resources" or "graphic interfaces"
that possibly to rotate a vector, I am very grateful.
Thank you for your help.
Kindest regards,
-r/K-
res = True
res@gsnMaximize = True ; maxmize plot in frame
res@cnFillOn = True ; turn on color
res@cnLinesOn = False ; no contour lines
res@cnLineLabelsOn = False ; no contour labels
res@gsnSpreadColors = True ; use full color map
res@gsnSpreadColorEnd = -3 ; don't use added gray
;---Turn on tickmarks. 'conditional' prevents more than one tickmark object.
res@pmTickMarkDisplayMode = "conditional"
res@gsnAddCyclic = False
res@gsnRightString = ""
;
; Since the Y-Axis of these data goes from north to south, the Y-Axis
; needs to be reversed to plot it correctly in a "native" projection.
;
; res@trYReverse = False
;
; To draw these contours on another map projection, the
; 2D (unrotated) lat/lon coordinates are required.
;
res@tfDoNDCOverlay = False ; transform to standard lat/lon
res@sfXArray = lon
res@sfYArray = lat
;---Zoom in on map
res@mpLimitMode = "Corners"
res@mpLeftCornerLatF = 10 ;lat(nlat-1,0) - 10
res@mpLeftCornerLonF = 32 ;lon(0,0) -10
res@mpRightCornerLatF = 30 ;lat(0,nlon-1) + 5
res@mpRightCornerLonF = 47.5 ; lon(nlat-1,nlon-1) + 10
;---Regular lat/lon plot when center lat is 0
res@cnFillDrawOrder = "Predraw" ; draw contours first
res@tiMainString = "velocity (m/s)"
res@mpDataBaseVersion = "MediumRes" ; use GMT coastline
; plot = gsn_csm_contour_map(wks,velu(1,:,:),res)
; plot=gsn_csm_vector_scalar_map_ce(wks,velu(1,:,:),velv(1,:,:),\
; tracer(1,:,:),res)
plot=gsn_streamline(wks,velu(1,:,:),velv(1,:,:),res) ; create plot
end
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Received on Thu Dec 19 12:30:38 2013
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