[ncl-talk] Can't figure out how to increase thickness of the lines in the legend

Adam Phillips asphilli at ucar.edu
Fri Jan 22 09:37:39 MST 2016


Hi Ruksana,
I see that you are setting lgres at gsLineThicknessF. Have you tried setting
lgres at lgLineThicknessF instead?
http://www.ncl.ucar.edu/Document/Graphics/Resources/lg.shtml#lgLineThicknessF

If that does not fix the issue let ncl-talk know..
Adam

On Fri, Jan 22, 2016 at 9:32 AM, Ruksana Abedin <ruksana.abedin at gmail.com>
wrote:

> Hi,
>
> I need to increase the thickness of the lines used as the indicators of
> the data types (RCM, UoD, GPCC, etc.) within the legend. Otherwise, reader
> can not see properly the legend and finds it hard to identify the line's
> colour indicating for a specific data source.
>
> Any suggestions will be highly appreciated.
>
> Thank you,
> Ruksana
>
>
> ;*****************************************************
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/time_axis_labels.ncl"
> ;*****************************************************
> begin
> ;*****************************************************
> ;read in data
> ;*****************************************************
> f0=addfile ("....../wah2_sas_1985_2007.part.LRBdesh.ymonmean_1_11.nc",
> "r");
> f = addfile("......./APHRO_LRBdesh_ppt_1985_2007_ymonmean_1_11.nc", "r")
> f1 = addfile("......./
> GPCC.precip.ymonmean_1_11.1985-2007.v6.360d.LRBdesh.nc","r")
> f2 = addfile("......../UoD.precip.360d.ymonmean.1985_2007_LRBDesh.v301.nc
> ","r")
>
> ;*****************************************************
> ; parameters
> ;*****************************************************
>
> PPT_mod = f0->field90(:,0,:,:)
> PPT_mod = PPT_mod*86400
>
> PPT_obs = f->precip
> PPT_obs1 = f1->precip/30
> PPT_obs2 = f2->precip/3
>
> fldmean0 = wgt_areaave_Wrap(PPT_mod,1.0,1.0,1)
> fldmean = wgt_areaave_Wrap(PPT_obs,1.0,1.0,1)
> fldmean1 = wgt_areaave_Wrap(PPT_obs1,1.0,1.0,1)
> fldmean2 = wgt_areaave_Wrap(PPT_obs2,1.0,1.0,1)
>
> time = f0->time0
> x = PPT_mod&time0
> timax = dimsizes(time)-1
>
> ;--convert the time proleptic_gregorian calendar to UTC date
> utc_date   = cd_calendar(time,0)
>
> ;-- set date variable names
>
> year     = tointeger(utc_date(:,0))
> month     = tointeger(utc_date(:,1))
> day     = tointeger(utc_date(:,2))
> hour      = tointeger(utc_date(:,3))
> minute      = tointeger(utc_date(:,4))
> second      = utc_date(:,5)
>
> ;-- write date as string (MM)
> date_str_i = sprinti("%0.2i",month)
>
> ;-- create the time strings, plot every axis annotation
> incr     = 1
> labels      = (/date_str_i(0::incr)/)
> labels   = (/"J","F","M","A","M","J","J","A","S","O","N"/)
>
> ;-- set resources
> res = True
> res at trXMinF           = time(0)             ; time minimum on axis
> res at trXMaxF           = time(timax)         ; time maximum on axis
> res at tmXBMode         = "Explicit"           ; explicit time setting
> res at tmXBValues         = PPT_mod&time0(::incr)  ; axis tick position
> res at tmXBLabels         = labels
>
>
> colors = (/"blue","sky blue","yellow","orange"/)
> lg_labels = (/"RCM","APHRODITE","GPCC","UoD"/)
>
> printVarSummary(time)
> printVarSummary(PPT_mod)
> printVarSummary(PPT_obs)
> printVarSummary(PPT_obs1)
>
>
> wks = gsn_open_wks("eps","annpptcycle")
>
> res =True
> res at gsnDraw    = False
> res at gsnFrame   = False
> res at gsnPaperOrientation = "portrait"
>
> res= True   ; plot mods desired
> res =True
> res at gsnMaximize= True
> res at gsnDraw    = False
> res at gsnFrame   = False
> res at gsnPaperOrientation = "portrait"
>
>
> res= True   ; plot mods desired
> res at tiMainString = "Bangladesh with Larger Region"
> res at tiYAxisString   = "Precipitation (mm/day)"
> res at tiXAxisString   = "months"
> res at xyLineThicknessF = (/6,5,5,5/)
> res at trYMinF     = 0.0
> res at trYMaxF     = 15.0
>
> res at xyLineColor          = colors(0)
> plot0 = gsn_csm_xy(wks,x,fldmean0,res)
>
> res at xyLineColor          = colors(1)
> plot1 = gsn_csm_xy(wks,x,fldmean,res)
>
> res at xyLineColor          = colors(2)
> plot2 = gsn_csm_xy(wks,x,fldmean1,res)
>
> res at xyLineColor          = colors(3)
> plot3 = gsn_csm_xy(wks,x,fldmean2,res)
>
> overlay(plot0,plot1)
> overlay(plot0,plot2)
> overlay(plot0,plot3)
>
>
> ; Attach a legend
>
> lgres = True
> lgres at lgLineColors              = colors
> lgres at lgMonoItemType        = True
> lgres at lgItemType        = "Lines"
> lgres at lgMonoDashIndex        = True
> lgres at lgDashIndex        = "SolidLine"
> lgres at gsLineDashPattern         = 0.
> lgres at gsLineThicknessF          = 5.
> lgres at lgLabelFontHeightF     = 0.25
> lgres at lgBoxMinorExtentF      = 0.25
> lgres at vpWidthF            = 0.25
> lgres at vpHeightF         = 0.25
> lgres at pmLegendDisplayMode     = "Always"
> lgres at pmLegendWidthF          = 0.6
> lgres at pmLegendHeightF          = 0.1
> lgres at xyExplicitLabels         = lg_labels
> lgres at lgBoxMinorExtentF     = 0.8
> lgres at lgPerimOn                 = False
> legend = gsn_create_legend(wks, 4, lg_labels, lgres)
>
> amres                 = True
> amres at amJust             = "BottomRight"     ; Use bottom right corner of
> box for determining its location.
> amres at amOrthogonalPosF        = -0.12
> amres at amParallelPosF         = -0.1
>
> annoid  =  gsn_add_annotation(plot0, legend, amres)  ; add legend to plot
>
> draw(plot0)
>
> frame(wks)
>
> end
>
>
> [image: Inline image 1]
>
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>


-- 
Adam Phillips
Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
www.cgd.ucar.edu/staff/asphilli/   303-497-1726

<http://www.cgd.ucar.edu/staff/asphilli>
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