[ncl-talk] CylindricalEqualArea map projection problems

Marc Michelsen marc at u.washington.edu
Sat Mar 10 08:45:07 MST 2018


Hi NCLers,

When I use the CylindricalEquidistant map projection it looks great:

3414 olympus% cat maponly.ncl
begin
   wks  = gsn_open_wks("png","maponly")
   res                        = True
   res at mpOceanFillColor       = "cyan"
   res at mpLandFillColor        = "sienna"
   res at mpInlandWaterFillColor = "cyan"
   res at mpProjection = "CylindricalEquidistant"
;  res at mpProjection = "CylindricalEqualArea"
   res at mpMinLatF = -45.
   res at mpMaxLatF = 45.
   plot = gsn_csm_map(wks,res)
   delete(wks)
   system("convert -trim maponly.png maponly.png")
   end
3415 olympus% ncl < maponly.ncl
  Copyright (C) 1995-2017 - All Rights Reserved
  University Corporation for Atmospheric Research
  NCAR Command Language Version 6.4.0
  The use of this software is governed by a License Agreement.
  See http://www.ncl.ucar.edu/ for more details.
3416 olympus%



However if I switch to
res at mpProjection = "CylindricalEqualArea"
I get this:



i.e. no tickmarks, no lat/lon labels and the min max latitude are not 
respected. Is this a bug or am I missing something?

Thanks,

Marc


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