Heiko,
i am not sure i entirely understand your entire problem. Do you have
gridded data on a native stereographic projection in which the lat/lon
information is in the form of 2D arrays?
What do you mean that you want to plot WITHOUT lat/lon information?
if the former is true, there there are special techniques for plotting
gridded data that is already on a native projection:
http://www.cgd.ucar.edu/csm/support/CSM_Graphics/native.shtml
this web page contains examples of several types of native projections.
In particular, for a native stereographic projection, these are the
resources that need to be set:
res@mpProjection = "Stereographic" ; projection
res@mpLimitMode = "Corners" ; method to zoom
res@mpLeftCornerLatF = lat(0,0)
res@mpLeftCornerLonF = lon(0,0)
res@mpRightCornerLatF = lat(293-1,343-1)
res@mpRightCornerLonF = lon(293-1,343-1)
res@mpRelativeCenterLon = True ; set a center lon
res@mpCenterLonF = lon(147,172) ; center lon
res@mpRelativeCenterLat = True ; set a center lat
res@mpCenterLatF = 90. ; center lat
res@tfDoNDCOverlay = True ; do not transform data
note that with any native grid, you use the mpLimitMode=Corner rather than
mpLimiteMode="LatLon", which is what happens in gsn_csm_contour_map_ce
behind the scenes.
If this technique is not what you are after, please let me know.
cheers,
sylvia
******************************************************
Sylvia Murphy EML: murphys@ucar.edu
NCAR CGD/CAS PHN: 303-497-1720
1850 Table Mesa Dr FAX: 303-497-1333
Boulder, CO 80305
WEB: http://www.cgd.ucar.edu/csm/support/
http://www.cgd.ucar.edu/csm/support/CSM_Graphics/
******************************************************
_______________________________________________
ncl-talk mailing list
ncl-talk@ucar.edu
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
This archive was generated by hypermail 2b29 : Tue Oct 08 2002 - 11:24:10 MDT