[ncl-talk] Sub: White space around the boundary

[Mary Haley]

The white space is either due to missing values in your data, or you are
using a larger lat/lon boundary that the lat/lon extent of your array.

As a start, instead of hard-coding the lat/lon bounds with:

  latS   =  40.
  latN   =  49.
  lonL   = -116.
  lonR   =  -90.

you can try using the lat/lon values associated with the "eof" array:

  latS   = min(eof&lat)
  latN   = max(eof&lat)
  lonL   = min(eof&lon)
  lonR   = max(eof&lon)


On Thu, Mar 17, 2016 at 1:37 PM, Adv <advita6 at gmail.com> wrote:

>
>
>
>
> Hi,
> I don't know how to get rid of white spaces around the boundary. Could
> someone help me to fix this? I have attached a output figure for your
> review.
>
> Thanks
>
>
> latS   =  40.
>   latN   =  49.
>   lonL   = -116.
>   lonR   =  -90.
>
>
> wks = gsn_open_wks("pdf","eof")
>   gsn_define_colormap(wks,"BlWhRe")       ; choose colormap
>   plot = new(neof,graphic)                ; create graphic array
>                                           ; only needed if paneling
> ; EOF patterns
>
>   res                      = True
>   res at gsnDraw              = False        ; don't draw yet
>   res at gsnFrame             = False        ; don't advance frame yet
>
> ;---This resource not needed in V6.1.0
>   res at gsnSpreadColors      = True         ; spread out color table
>
>   res at gsnAddCyclic         = False        ; plotted dataa are not cyclic
>
>   res at mpFillOn             = False        ; turn off map fill
> res at mpLimitMode           = "LatLon"
>   res at mpMinLatF            = latS         ; zoom in on map
>   res at mpMaxLatF            = latN
>   res at mpMinLonF            = lonL
>   res at mpMaxLonF            = lonR
>  res at cnFillOn             = True         ; turn on color fill
>   res at cnLinesOn            = False        ; True is default
> ;res at cnLineLabelsOn       = False        ; True is default
>   res at lbLabelBarOn         = False        ; turn off individual lb's
>  res at mpPerimOn              = True                    ; draw box around
> map
> res at mpGeophysicalLineThicknessF = 3.0
> res at mpGeophysicalLineColor = "Black"; (/22/)
> ;res at mpNationalLineThicknessF  = 3.0
> res at mpOutlineBoundarySets = "GeophysicalAndUSStates" ; add state
> boundaries
> res at mpNationalLineColor  = res at mpGeophysicalLineColor
> res at mpUSStateLineThicknessF = 3.0
> res at mpUSStateLineColor  = res at mpGeophysicalLineColor
>
>
>                                           ; set symmetric plot min/max
>   symMinMaxPlt(eof, 16, False, res)       ; contributed.ncl
> ; panel plot only resources
>   resP                     = True         ; modify the panel plot
>   resP at gsnMaximize         = False         ; large format
>   resP at gsnPanelLabelBar    = True         ; add common colorbar
>   resP at lbLabelAutoStride   = True         ; auto stride on labels
>
>   yStrt                    = yyyymm(0)/100
>   yLast                    = yyyymm(nyrs-1)/100
> ;  resP at txString            = "SLP: "+season+": "+yStrt+"-"+yLast
>
> ;*******************************************
> ; first plot
> ;*******************************************
>   do n=0,neof-1
>      res at gsnLeftString  = "EOF "+(n+1)
>      res at gsnRightString = sprintf("%5.1f", eof at pcvar(n)) +"%"
>      plot(n)=gsn_csm_contour_map_ce(wks,eof(n,:,:),res)
>   end do
> ;*******************************************
> ; second plot
> ;*******************************************
> ; EOF time series  [bar form]
>
>   rts           = True
>   rts at gsnDraw   = False       ; don't draw yet
>   rts at gsnFrame  = False       ; don't advance frame yet
>   rts at gsnScale  = True        ; force text scaling
>
> ; these four rtsources allow the user to stretch the plot size, and
> ; decide exactly where on the page to draw it.
>
>   rts at vpHeightF = 0.40        ; Changes the aspect ratio
>   rts at vpWidthF  = 0.85
>   rts at vpXF      = 0.10        ; change start locations
>   rts at vpYF      = 0.75        ; the plot
>
>
>   rts at tiYAxisString = "mm/day"     rts at gsnYRefLine           =
> 0.              ; reference line
>   rts at gsnXYBarChart         = True            ; create bar chart
>   rts at gsnAboveYRefLineColor = "red"           ; above ref line fill red
>   rts at gsnBelowYRefLineColor = "blue"          ; below ref line fill blue
>
> ; panel plot only resources
>   rtsP                      = True            ; modify the panel plot
>   rtsP at gsnMaximize          = True            ; large format
>   rtsP at txString             = "Prec: "+season+": "+yStrt+"-"+yLast
>
>   year = yyyymm/100
>
> ; create individual plots
>   do n=0,neof-1
>      rts at gsnLeftString  = "EOF "+(n+1)
>      rts at gsnRightString = sprintf("%5.1f", eof at pcvar(n)) +"%"
>      plot(n) = gsn_csm_xy (wks,year,eof_ts(n,:),rts)
>   end do
>   gsn_panel(wks,plot,(/neof,1/),rtsP)     ; now draw as one plot
> end
>
>
>
>
>
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