Map Tickmarks using gsn_map

Hello,

I use gsn_map to plot a map and try to figure out how the tickmark
spacing in lat and lon can be adjusted. I tried

- tm resources: "tm[XB|XT|YL|YR]Mode resources are not currently enabled
for MapPlot tick marks"
- mpGridSpacingF which just adjusts the spacing of the lat/lon grid
lines, but not the tick marks
- gsnMajorLonSpacing: doesn't work either

How can I adjust the tick mark spacing? Please find below my sample
script.

Thanks
Daniel

begin

  wks = gsn_open_wks("ps","test")
  r = True
  r@gsnMaximize = True
  r@gsnFrame = True
  r@gsnDraw = True
  r@tmYROn = False
  r@tmYLOn = True
  r@tmXTOn = False
  r@tmXBOn = True
  r@pmTickMarkDisplayMode = "Always"
  r@mpGridSpacingF = 4.0
  r@mpGridLineColor = "Gray"
  r@mpGridMaskMode = "MaskNone"
  r@mpLimbLineColor = "Gray"
  r@mpGridAndLimbOn = True
  r@mpNationalLineColor = "Gray"
  r@mpGeophysicalLineColor = "Gray"
  r@mpPerimLineColor = "Gray"
  r@mpPerimOn = False
  r@mpRightCornerLonF = 23.02349
  r@mpRightCornerLatF = 56.8411
  r@mpLeftCornerLonF = -9.798356
  r@mpLeftCornerLatF = 35.15828
  r@mpLimitMode = "Corners"
  r@mpCenterLatF = 47.0
  r@mpCenterLonF = 370.0
  r@mpPerimLineThicknessF = 1
  r@mpOutlineBoundarySets = "AllBoundaries"
  r@mpFillOn = False
  r@mpOutlineOn = True
  r@mpDataSetName = "Earth..4"
  r@mpDataBaseVersion = "MediumRes"
  mp = gsn_map(wks, "CylindricalEquidistant", r)
  delete(r)

end
________________________________________

Daniel Leuenberger
Numerical Models

Federal Departement of Home Affairs FDHA Federal Office of Meteorology
and Climatology MeteoSwiss

Kraehbuehlstrasse 58, P.O. Box 514, CH-8044 Zurich, Switzerland

Tel. +41 44 256 97 10
Fax +41 44 256 92 78
daniel.leuenberger@meteoswiss.ch
www.meteoswiss.ch - First-hand information
  
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Received on Wed Jul 7 02:53:57 2010