[ncl-talk] legend colorfil problem

Mary Haley haley at ucar.edu
Mon Jun 12 08:53:25 MDT 2017


Hi Marston,

There are two things you can try.

One is to use the new simple_legend function that Adam Phillips added.  See
examples leg_16.ncl and leg_17.ncl at:

http://www.ncl.ucar.edu/Applications/legend.shtml#ex16

The second is I can give you a beta version of 6.5.0 that has the
tmGridDrawOrder resource.  This allows you to make the grid lines draw in
an earlier phase than the legend.  See example leg_18.ncl on the same page.

--Mary


On Sat, Jun 10, 2017 at 7:40 AM, Marston Johnston <shejo284 at gmail.com>
wrote:

> Hi,
>
>
>
> I’m trying to get the legend on a xy plot to not show the gridlines by
> adding the following:
>
>
>
> lgres at lgPerimFillColor   = "yellow"
>
> lgres at lgPerimFill        = "SolidFill"
>
>
>
> I’m doing this inside gsn_legend_ndc because I want the legend on plot(3)
> only:
>
>
>
>   lgres                    = True
>
>   lgres at lgLineColors       = (/"blue","black","red","blue","black","red"/)
>
>   lgres at vpWidthF           = 0.15                   ; width of legend
> (NDC)
>
>   lgres at vpHeightF          = 0.1                   ; height of legend
> (NDC)
>
>   lgres at lgDashIndexes      = (/0,0,0,2,2,2/)              ; dash indexes
>
>   lgres at LgLineThicknessF   = 2.0
>
>   lgres at lgPerimFillColor   = "yellow"
>
>   lgres at lgPerimFill        = "SolidFill"
>
>   gsn_legend_ndc(wks,6,(/"MCH1","MCH2","MCH3","OCH1","OCH2","
> OCH3"/),0.6,0.2,lgres)
>
>
>
> I can change the background color but the ”SolidFill” doesn’t seem to
> work. I’m calling  gsn_legend_ndc before the
>
> gsn_panel. Is this an issue where the plot is being added after the
> legend? I’ve looked at the tmGridDrawOrder but this doesn’t seem to work
> for gridlines in a xy plot.
>
>
>
> I’m using NCL version 6.4. Here’s the entire plot sequence:
>
>
>
>   res = True
>
>   res at gsnDraw = False
>
>   res at gsnFrame = False
>
>   res at tmXMajorGrid = True
>
>   res at tmXMajorGridThicknessF = 1.0
>
>   res at tmXMajorGridLineDashPattern = 2
>
>   res at tmYMajorGrid = True
>
>   res at tmYMajorGridThicknessF = 1.0
>
>   res at tmYMajorGridLineDashPattern = 2
>
>   res at xyLineColors = (/"blue","black","red","blue","black","red"/)
>
>   res at xyLineThicknesses = (/1,1,1,1,1,1/)*2
>
>   res at xyDashPatterns = (/0,0,0,2,2,2/)
>
>   ;res at tiYAxisString = "~F8~T~B~B~N~ (K)"
>
>   res at vpHeightF = 0.5
>
>   res at vpWidthF = 1.5
>
>   res at trXMinF = -90.0
>
>   res at trXMaxF = 90.0
>
>
>
>   res at trYMinF = 230.0
>
>   res at trYMaxF = 280.0
>
>
>
>   plot(0) = gsn_csm_xy(wks,zmas&lat,dataas,res)
>
>   plot(1) = gsn_csm_xy(wks,zmas&lat,datacs,res)
>
>
>
>   res at trYMinF = -4.0
>
>   res at trYMaxF = 0.0
>
>   res at tiXAxisString = "Latitude"
>
>   plot(2) = gsn_csm_xy(wks,zmas&lat,datace,res)
>
>
>
>   lgres                    = True
>
>   lgres at lgLineColors       = (/"blue","black","red","blue","black","red"/)
>
>   lgres at vpWidthF           = 0.15                   ; width of legend
> (NDC)
>
>   lgres at vpHeightF          = 0.1                   ; height of legend
> (NDC)
>
>   lgres at lgDashIndexes      = (/0,0,0,2,2,2/)              ; dash indexes
>
>   lgres at LgLineThicknessF   = 2.0
>
>   lgres at lgPerimFillColor   = "yellow"
>
>   lgres at lgPerimFill        = "SolidFill"
>
>   gsn_legend_ndc(wks,6,(/"MCH1","MCH2","MCH3","OCH1","OCH2","
> OCH3"/),0.6,0.2,lgres)
>
>
>
>   resP = True
>
>   resP at gsnMaximize = True
>
>   resP at gsnPanelFigureStrings = str_upper((/"a","b","c"/))
>
>   resP at gsnPanelFigureStringsFontHeightF = 0.01
>
>   resP at amJust = "TopLeft"
>
>   resP at gsnPanelBottom  = 0.05
>
>   gsn_panel(wks,plot,(/3,1/),resP)
>
>
>
>
>
> Thanks for your advice/help with this,
>
> /M
>
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Marston S. Johnston, PhD
>
> Department of Earth Sciences
>
> University of Gothenburg, Sweden
>
> Email: marston.johnston at gu.se
>
> SkypeID: marston.johnston
>
> Phone: +46-31-7864901 <+46%2031%20786%2049%2001>
>
> Only the fruitful thing is true!
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
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