Re: an error when run NCL script

Hi all,

Xu-Yan and I worked offline on this, and the problem was that a "/" was being used in the filename, effectively causing NCL to think it was a directory.

For example:

   wks = gsn_open_wks("ps","WRF/example")

will cause NCL to try to create the file "example.ps" in the subdirectory "WRF".

--Mary

On Mar 10, 2011, at 10:13 AM, Mary Haley wrote:

> Dear Xu-Yan,
>
> The error message is coming from trying to open a PostScript file to send the graphics to. The DISPLAY environment variable only comes into play here if you are sending the graphics to an X11 window.
>
> There are a few reasons why NCL can't create the PS file:
>
> - you are trying to create the file where you don't have write permissions
> - you don't have enough disk space to create a file
> - you are trying to access a directory that doesn't exist
> - there's some problem with the file name you're using
>
> Please check all of these things.
>
> If everything looks okay and you're still having a problem, then try this as a test:
>
> ng4ex xy01n -W ps
>
> and let me know if "xy01n.ps" gets created, or if you get errors.
>
> --Mary
>
>> Hi，
>> Sorry to bother you.There is a problem happening when i run the NCL script.
>> ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>> warning:GKS:GOPWK: --PostScript error: error opening output file
>> fatal:Workstation with PID#8 is not open
>> ERROR 3 IN NGSETI - value for WO must reference an open workstation.
>> ERROR 1 IN NGSETI - Uncleared prior error
>> ERROR 1 IN NGSETI - Uncleared prior error
>> ERROR 1 IN NGSETI - Uncleared prior error
>> ERROR 1 IN NGSETI - Uncleared prior error
>> ERROR 1 IN NGSETI - Uncleared prior error
>> fatal:Unable to open Workstation-Can't Create
>> fatal:Unable to access object with id:-4
>> fatal:NhlGetValues:PID #-4 is invalid
>> fatal:Execute: Error occurred at or near line 3238 in file $NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl
>>
>> fatal:Execute: Error occurred at or near line 3530 in file $NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl
>>
>> fatal:Execute: Error occurred at or near line 140 in file WRF-CMAQ.ncl
>> ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>> I checked the DISPLAY and i typed:printenv DISPLAY,i got localhost:15.0.
>> My object is making four plots(/2,2/).
>> Please give me some suggestion!
>> Thanks a lot,
>> Xu-Yan
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Received on Thu Mar 10 11:51:19 2011