lat and lon labels on a map

From: Matt Fearon (matthew.fearon AT XXXXXX)
Date: Thu Jun 07 2001 - 17:22:42 MDT

  • Next message: Jiming Jin: "NCAR's EOF functions"

    Dear NCL users:

    I am plotting topography using the gsn_csm_contour_map in
    an area; lat: 40 to 50 N, lon: 4. to 15. E. The data plots
    fine. However, the lat lon labels that default are incorrect.
    This seems like it should be easy correct, but I have
    been unsuccessful in doing this. What resources would
    allow me to explicitly label the longitude and latitude
    values on the x and y axes, respectively. I have attached
    the plotting portion of my script below. Any suggestions
    on how to do this would be greatly appreciated.

    Thank you,
    Matt
    matthew.fearon@yale.edu

     wks = gsn_open_wks ("X11", "plot")
     gsn_define_colormap (wks,"gui_default") ; COLOR

     res = True
    ; res@vpXF = .1
    ; res@vpYF = .95
    ; res@vpWidthF = .5
    ; res@vpHeightF = .8

     res@gsnSpreadColors = True
     res@gsnSpreadColorStart = 4
     res@gsnSpreadColorEnd = -1
     res@gsnAddCyclic = False

     res@mpLimitMode = "Corners"
     res@mpLeftCornerLatF = latcoord(0)
     res@mpLeftCornerLonF = loncoord(0)
     res@mpRightCornerLatF = latcoord(nj-1)
     res@mpRightCornerLonF = loncoord(ni-1)

     res@mpOutlineDrawOrder = "PostDraw"
     res@mpGridLineDashPattern = 2
     res@mpPerimOn = True
     res@mpPerimDrawOrder = "PostDraw"
     res@mpOutlineOn = True

     res@mpOutlineBoundarySets = "National"
     res@mpGeophysicalLineThicknessF = 1.5
     res@mpGridAndLimbOn = True
     res@mpGridSpacingF = 1.

    ; res@mpMinLatF = 41.
    ; res@mpMaxLatF = 49.
    ; res@mpLabelsOn =
    ; res@mpCenterLonF = 9.
     res@mpGridLonSpacingF = 5.

    ; res@mpMinLonF = 4. ; set min lon
    ; res@mpMaxLonF = 15. ; set max lon
    ; res@mpGridLatSpacingF = .3

     res@tfDoNDCOverlay = True

     res@cnRasterModeOn = True
     res@cnFillOn = True
     res@cnLinesOn = False
     res@cnInfoLabelOn = False
     res@cnLineLabelsOn = False
     res@cnLevelSelectionMode = "ManualLevels"
     res@cnMinLevelValF = 0.
     res@cnMaxLevelValF = 3600.
     res@cnLevelSpacingF = 100.

     res@lbAutoManage = False
     res@pmLabelBarDisplayMode = "Never"
     res@lbAutoManage = False
     res@pmLabelBarDisplayMode = "Never"
     res@lbOrientation = "Horizontal"
     res@lbLabelStride = 4
     res@lbLabelFontHeightF = .012
     res@lbPerimOn = False

     txres = True
     txres@txFontHeightF = 0.02
     gsn_text_ndc(wks,"1km Alpine DEM",0.45,0.89,txres)

     plot = gsn_csm_contour_map(wks,ddem,res)

     frame(wks)

    This archive was generated by hypermail 2b29 : Thu Jun 07 2001 - 20:20:57 MDT