[ncl-talk] Cannot create triangular mesh

Adam Phillips asphilli at ucar.edu
Tue Apr 2 16:21:17 MDT 2019


Hi MM,
In short: No. I wouldn't even know where to recommend you start, and there
is no official support for backporting NCL advancements to previous NCL
versions. The far easiest solution is to ask the systems administrators to
upgrade NCL to the current version.
Best,
Adam

On Tue, Apr 2, 2019 at 4:09 PM MM Ali <mmali110 at gmail.com> wrote:

> Hi Adam,
>
> I have access to the Florida State University computer systems (I am in
> India) and all the systems there have 6.0.0 version. Is it possible to
> modify the code so that it runs on this version?
>
> Thanks
> Ali
>
> On Tue, Apr 2, 2019 at 10:32 PM Adam Phillips <asphilli at ucar.edu> wrote:
>
>> Hello,
>> I ran your script using version 6.6.2. I didn't get any error messages,
>> and it produced the attached plot.  NCL v6.0.0 is almost 8 years old, I
>> highly recommend updating to the newest version (6.6.2).
>> Adam
>>
>> On Tue, Apr 2, 2019 at 5:18 AM MM Ali <mmali110 at gmail.com> wrote:
>>
>>> Hi,
>>> I took a program of Dr. Petroula modified by Prof. Thomas from ncl-talk
>>> and slightly modified to suit my requirements (attached below). The program
>>> plots the continent  and the legent without any contour. The error is:
>>>
>>> fatal:Cannot create triangular mesh: supply additional resources or
>>> build with Triangle package
>>> fatal:ContourPlotDraw: draw error
>>> warning:WorkstationDeactivate: workstation not active or not opened
>>>
>>> The data set I used is attached. The ncl version I use is 6.0.0.0
>>>
>>> It would be great if someone can help me in solving this problem.
>>>
>>> Thanks
>>> Ali
>>> The Code (also attached):
>>>  load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>>>  load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
>>>  load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>>> begin
>>>
>>>   fname = "tst.txt"
>>>
>>>   n_col = numAsciiCol(fname)
>>>   n_var = n_col
>>>   n_pt  = numAsciiRow(fname)
>>>   dataf  = asciiread(fname,(/n_pt,n_var/),"float")
>>>
>>> ;---read longitude
>>>   lon = dataf (:,0)
>>>
>>> ;---read latitude
>>>   lat = dataf (:,1)
>>>
>>> ;---read data for presence of convective cloud
>>>   storm = dataf (:,2)
>>>
>>> ;---define the workstation (plot type and name)
>>>   wks = gsn_open_wks("png","plot_field")
>>>
>>> ;--set resources
>>>   wks = gsn_open_wks("x11","ce")
>>>   res                     = True
>>>   res at gsnMaximize         = True
>>>
>>>   res at mpDataBaseVersion   = "MediumRes"   ;-- map resolution
>>>   res at mpMinLonF           = min(lon)
>>>   res at mpMaxLonF           = max(lon)
>>>   res at mpMinLatF           = min(lat)
>>>   res at mpMaxLatF           = max(lat)
>>>
>>>   res at sfXArray            = lon
>>>   res at sfYArray            = lat
>>>
>>>   res at cnFillOn            = True        ; Turn on contour fill.
>>>   res at cnLinesOn           = False       ; Turn off contour lines
>>>
>>> ;-- create the contour map plot
>>> ;  plot = gsn_csm_contour_map(wks,storm,res)         ; create a default
>>> plot
>>>   contour = gsn_csm_contour_map(wks,storm,res)
>>>
>>> end
>>>
>>>
>>>
>>>
>>> --
>>> *Dr. MM Ali*
>>> Formerly:
>>> Scientist G & Group Director
>>> NRSC/ISRO
>>> email: mmali110 at gmail.com
>>>            mmali at coaps.fsu.edu
>>> Mob: +91 9949045110
>>> _______________________________________________
>>> ncl-talk mailing list
>>> ncl-talk at ucar.edu
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>
>>
>> --
>> Adam Phillips
>> Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
>> www.cgd.ucar.edu/staff/asphilli/   303-497-1726
>>
>> <http://www.cgd.ucar.edu/staff/asphilli>
>>
>
>
> --
> *Dr. MM Ali*
> Formerly:
> Scientist G & Group Director
> NRSC/ISRO
> email: mmali110 at gmail.com
>            mmali at coaps.fsu.edu
> Mob: +91 9949045110
>


-- 
Adam Phillips
Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
www.cgd.ucar.edu/staff/asphilli/   303-497-1726

<http://www.cgd.ucar.edu/staff/asphilli>
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