Contour labels not plotted

Hi

I had used the following code segment to plot contours of H_increments.
After setting cnLineLabelsOn=True, I am still not getting the contour
lines labeled.

Agnes

============================================
 wks = gsn_open_wks("pdf"
,"2008-05-21_21_00_GHGT_T_anal_incre_"+i) ; open a ps file
   res = True ; plot mods desired
   gsn_define_colormap(wks,"BlWhRe") ; select color map
   res@gsnSpreadColors = True
   res@mpLandFillColor = -1 ; set land to be transperant
   res@mpOutlineOn = True
   res@mpOutlineBoundarySets = "AllBoundaries"
   res@mpProjection = "LambertConformal"
   res@mpEllipticalBoundary = False ; If you want elliptical
   res@cnFillOn = False
   res@cnLineLabelsOn = True
   res@cnLinesOn = True
   res@lbBoxLinesOn = True
   res@mpMinLatF = 7 ; range to zoom in on
   res@mpMaxLatF = 56
   res@mpMinLonF = -170
   res@mpMaxLonF = -53
   res@tmXTOn = False ; Turn off top tickmarks and labels
   res@tmYROn = False ; Turn off left tickmarks and labels
   res@tmXBLabelFontHeightF = 0.01 ; resize tick labels
   res@tmYLLabelFontHeightF = 0.01
   res@pmTickMarkDisplayMode = "Always"
   res@lbLabelAutoStride = True
   res@mpLambertParallel1F = wrf_bkg_no_airs@TRUELAT1
   res@mpLambertParallel2F = wrf_bkg_no_airs@TRUELAT2
   res@mpLambertMeridianF = wrf_bkg_no_airs@CEN_LON ; or f@CEN_LON
   res@gsnMaskLambertConformal = True
   res@lbLabelBarOn = True
   res@cnLevelSelectionMode = "ExplicitLevels"
   res@cnLevels=(/-30, -15, 0, 15, 30/)
   res@gsnAddCyclic = False
   res@gsnContourZeroLineThicknessF = 0
   res@gsnContourNegLineDashPattern = 1 ; sets negative contours
to dash pattern 1
   res@gsnContourLineThicknessesScale = 2
   plot=gsn_csm_contour_map(wks,H_increment_airs(i,:,:), res)

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Received on Wed Aug 3 15:53:49 2011