[ncl-talk] 2nd y-axis label plus...

Mary Haley haley at ucar.edu
Mon May 25 21:32:35 MDT 2015


Hi Marston,

There are a couple of things you can do to get the plots to be closer
together.

One thing is to try setting the panel resource "gsnPanelYWhiteSpacePercent
<http://www.ncl.ucar.edu/Document/Graphics/Resources/gsn.shtml#gsnPanelYWhiteSpacePercent>"
to something smaller than 1.0 and greater than 0.0.

Another thing you can do is set the special gsnPanelXF resource, which
allows you to set the x position of each plot in a panel, in order to
override the default. Setting resP at gsnPanelDebug to True will print the
default values being used for the x position, allowing you to adjust as
necessary.

See example panel_19.ncl for more information:

http://www.ncl.ucar.edu/Applications/panel.shtml#ex19


Setting res at tmYLLabelsOn to False *should* turn off the Y axis labels.  I
do see that you are calling gsn_csm_xy2, so perhaps this is doing something
unexpected. It would really help if you could provide us with the data so
we can run your script, or else provide us with a small test case that
illustrates the problem.

To change the side of the Y axis title, try setting tiYAxisSide to
"Right".  See example title_8.ncl:

http://www.ncl.ucar.edu/Applications/title.shtml#ex8

I should point out that the gsn_csm_xy2 routine may be trying to control
some of these features in order to make sure all the labels and tickmarks
are correct. If you continue to have problems with this routine, then let
me know.

--Mary


On Mon, May 25, 2015 at 12:15 AM, Marston Johnston <shejo284 at gmail.com>
wrote:

> Hi,
>
> I’m trying to complete this figure by making some cosmetic changes.
> I thought these would be rather easy but I’m missing something. What I
> would like to do are:
>
> 1.) Move the plots closer vertically and remove the y-axis labels.
> 2.) I added a y2-axis title on the right side of the right column plots.
> How do I get these to show up?
> I’ve tried using the tmYLLabelsOn but this doesn’t give me the changes I
> need. I suspect something is interfering.
>
> Would appreciate some advice on this.
>
> Thanks in advance!
> /M
>
>
> plot snip…..
>
> wks = gsn_open_wks("pdf","zmean_xy")
>   plot = new(4,graphic)
>   data = new((/3,dimsizes(djfzm&lat)/),double)
>
>   res = True
>   resR                = True
>
>   res at gsnFrame        = False
>   res at gsnDraw         = False
>   res at xyLineThicknesses = (/2.0,2.0,2.0/)
>   res at xyLineColors      = (/"blue","red","black"/)
>
>   resR at trYMinF = -4
>   resR at trYMaxF = 30
>   res at trYMinF = 180
>   res at trYMaxF = 300
>
>   ; add a legend
>   res at pmLegendDisplayMode    = "Always"              ; turn on legend
>   res at pmLegendSide           = "Top"                 ; Change location of
>   res at pmLegendOrthogonalPosF = -0.65     ; Move into plot
>   res at pmLegendParallelPosF   = 0.35       ; Move to right
>   res at pmLegendWidthF         = 0.2       ; Decrease width
>   ;res at pmLegendHeightF        = 0.1       ; Decrease height
>   res at lgBoxMinorExtentF      = 0.2       ; Shorten the legend lines
>   res at lgLabelFontHeightF     = 0.02     ; Change the font size
>   res at lgPerimOn              = False                 ; no box around
>   res at xyExplicitLegendLabels = (/"EC-Earth","NOAA18"/)
>
>   resR at xyLineThicknesses          = 2.                  ; thicker line
>
>   ; GRID lines
>   res at tmXMajorGrid                = True          ; implement x grid
>   res at tmXMajorGridThicknessF      = 1.0           ; 2.0 is default
>   res at tmXMajorGridLineDashPattern = 2             ; select short dash
> lines
>   resR at tmYMajorGrid                = True          ; implement y grid
>   resR at tmYMajorGridThicknessF      = 1.0           ; 2.0 is default
>   resR at tmYMajorGridLineDashPattern = 2             ; select short dash
> lines
>
>   res at tiYAxisString  = "Brightness Temperature [K]" ; y-axis title
>   ;res at tmXBLabelsOn         = False              ; do not draw bottom
> labels
>   ;resR at tmYRLabelsOn        = False              ; no right labels
>   ;res at tmYLLabelsOn         = True
>   data(0,:) = djfzm
>   data(1,:) = djfozm
>   data(2,:) = djfzm - djfozm
>   plot(0) = gsn_csm_xy2 (wks,djfzm&lat,data(0:1,:),data(2,:),res,resR)
>
>   ;**************************
>   res at pmLegendDisplayMode = "Never"
>   res at tiYAxisString = "" ; y-axis title
>   ;res at tmYLLabelsOn  = False             ; left labels
>
>   resR at tiYAxisString = "EC-Earth - NOAA18 [~F33~D K]" ; y2-axis title
>   ;resR at tmYRLabelsOn  = True              ; right labels
>
>   data(0,:) = mamzm
>   data(1,:) = mamozm
>   data(2,:) = mamzm - mamozm
>   plot(1) = gsn_csm_xy2 (wks,mamzm&lat,data(0:1,:),data(2,:),res,resR)
>
>   res at tiYAxisString  = "Brightness Temperature [K]" ; y-axis title
>   resR at tiYAxisString  = "" ; y-axis title
>   res at tiXAxisString  = "Latitude" ; x-axis title
>   ;res at tmXBLabelsOn         = True              ; draw bottom labels
>   ;resR at tmYRLabelsOn        = False           ; right labels
>   ;res at tmYLLabelsOn         = True              ; left labels
>   data(0,:) = jjazm
>   data(1,:) = jjaozm
>   data(2,:) = jjazm - jjaozm
>   plot(2) = gsn_csm_xy2 (wks,jjazm&lat,data(0:1,:),data(2,:),res,resR)
>
>   res at tiYAxisString  = "" ; y-axis title
>   resR at tiYAxisString  = "EC-Earth - NOAA18 [~F33~D K]" ; y2-axis title
>   res at tiXAxisString  = "Latitude" ; x-axis title
>   ;res at tmYRLabelsOn         = True              ; right labels
>   ;res at tmYLLabelsOn         = False              ;left labels
>   ;resR at tmYRLabelsOn        = True
>   data(0,:) = sonzm
>   data(1,:) = sonozm
>   data(2,:) = sonzm - sonozm
>   plot(3) = gsn_csm_xy2 (wks,sonzm&lat,data(0:1,:),data(2,:),res,resR)
>
>   resP                           = True
>   resP at gsnMaximize  = True
>   gsn_panel(wks,plot,(/2,2/),resP)
>
> ***************
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Marston S. Johnston, PhD
> Department of Earth Sciences
> University of Gothenburg, Sweden
> Email: marston.johnston at gu.se
> Phone: +46-31-7862859
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Only the fruitful thing is true!
>
>
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