[ncl-talk] top x-axis label

[yang yang]

Dear Sir/Madam:

I would like to label the bottom and top x-axis, which are different.
For the top-axis, I set:
     res at tmXTMode          = "Explicit"
     res at tmXTValues        =
(/log10(2*3.14/1000000.),log10(2*3.14/500000.),log10(2*3.14/250000.),log10(2*3.14/100000.),log10(2*3.14/50000.)/)
     res at tmXTLabels = (/"1000","500","250","100","50"/)

For the bottom-axis, I set:
     res at tmXBMode          = "Explicit"         ; explicit labels
     res at tmXBValues        = (/-6,-5,-4,-3/)
     res at tmXBLabels =
(/"10~S~-6~N~","10~S~-5~N~","10~S~-4~N~","10~S~-3~N~"/)

The label of the bottom axis can show as I want successfully. However, the
top-axis does not show anything. I have checked codes and could not find
any problems. Can you please sort this out for me? The plotting parameters
are shown below.
Thanks very much!
Regards
Ed

;************************************************
; plotting parameters
;************************************************
wks_type = "png"
wks_type at wkWidth = 1200
wks_type at wkHeight = 1200

 wks   = gsn_open_wks (wks_type,"ke-spectra")                 ; open
workstation

  res          = True                   ; plot mods desired
  res at gsnFrame = False                  ; don't advance frame yet

   res at xyLineThicknesses = (/2,2,2,2,2/)               ; make lines thicker
   res at xyDashPatterns    = (/0,0,0,0,0/)      ; make all lines solid

   res at xyLineColors      = (/"black","blue","green","red","yellow"/)
   ; change line color

res at xyMarkLineMode = "MarkLines"
 res at xyMarkers      = (/0,0,0,0,0/)
 res at xyMarkerColors = (/"black","blue","green","red","yellow"/) ;
 different colors`
  res at vpHeightF= 0.4                    ; change aspect ratio of plot
  res at vpWidthF = 0.6
  res at trYMinF  = 3.8                   ; min value on y-axis
  res at trYMaxF  = 6.5                  ; max value on y-axis
 res at trXMinF  = -6.                   ; min value on x-axis
  res at trXMaxF  = -3.

     res at tmXTMode          = "Explicit"
     res at tmXTValues        =
(/log10(2*3.14/1000000.),log10(2*3.14/500000.),log10(2*3.14/250000.),log10(2*3.14/100000.),log10(2*3.14/50000.)/)
     res at tmXTLabels = (/"1000","500","250","100","50"/)

     res at tmXBMode          = "Explicit"         ; explicit labels
     res at tmXBValues        = (/-6,-5,-4,-3/)
     res at tmXBLabels =
(/"10~S~-6~N~","10~S~-5~N~","10~S~-4~N~","10~S~-3~N~"/)

     res at tmYLMode          = "Explicit"
     res at tmYLValues        = (/4.,5.,6./)
     res at tmYLLabels = (/"10~S~4~N~","10~S~5~N~","10~S~6~N~"/)
     res at tmXBLabelFontHeightF = 0.0205
     res at tmXTLabelFontHeightF = 0.0205
     res at tmYLLabelFontHeightF = 0.0225
     res at tmYLLabelFont = "helvetica"
     res at tmXBLabelFont = "helvetica"
     res at tmXTLabelFont = "helvetica"
  res at vpXF     = 0.2                  ; start plot at x ndc coord

  res at tiYAxisString = "KE(kg m~S~-3~N~ m~S~2~N~ s~S~-2~N~)"  ; axis string

  res at tiXAxisString = "k (radians m~S~-1~N~)"  ; axis string

  res at tiMainString     = "11-16 km layer" ; title

plot = gsn_csm_xy(wks,kf,log10(tke),res)

end
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