Re: errors with AMWG diagnostic package

Hi everyone.

Most of the ncl routines that are called by the AMWG diagnostics
package have a loop of this basic format:

do i = 0, nvars-1
   .
   .
   wks = gsn_open_wks(plot_type,...)
   .
   (set a bunch of resources)
   .
   gsn_panel(wks,plot,(/2,1/),pan) ; panel plot
   .
   frame (wks)
end do

and plot_type is in fact set to pdf. Again, this worked splendidly in
all versions of ncl 5.0 and before, but now it fails in 5.1. That
seems strange to me.

To my knowledge there is no gsn_close_wks command. Doesn't the frame
command update and clear the workstation objects?

Thanks!
Mark

>
> In fact you cannot have more than one PDF workstation open at a time.
> PDF files end with a pointer to a reference table that specifies
> byte addresses
> for PDF objects in the file. This table cannot be completed until
> the file is
> closed. I decided that the benefit/cost ratio was not high enough
> to make
> the necessary mods to keep in memory all of the necessary pointers for
> more than a single PDF output file, since I was thinking it would be
> rare
> that someone would want that.
>
> This limitation is mentioned at:
>
> http://ncarg.ucar.edu/gks/pdf.html
>
> Fred Clare
>
>
>
>
>
> On Jul 1, 2009, at 3:55 PM, Mark Branson wrote:
>
>>
>> I can't remember when ncl v5.1 came out and was installed on my
>> machine, but I'm pretty sure it happened in the last few months.
>> Because I have a version of the AMWG diagnostic package that Rich
>> Neale maintains, and back on April 27th it worked fine, but now I get
>> errors like these:
>>
>> SET 3 ZONAL LINE PLOTS
>> MAKING ANN PLOTS
>> Copyright (C) 1995-2009 - All Rights Reserved
>> University Corporation for Atmospheric Research
>> NCAR Command Language Version 5.1.0
>> The use of this software is governed by a License Agreement.
>> See http://www.ncl.ucar.edu/ for more details.
>> warning:GKS:GOPWK: -- Only one PDF workstation can be open at a time
>> fatal:Workstation with PID#88 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 3178 in file
>> $NCARG_ROOT/
>> lib/ncarg/nclscripts/csm/gsn_code.ncl
>>
>> Perhaps I need to install v5.1.1????
>>
>> Thanks,
>> Mark Branson
>>
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>
>

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Received on Wed Jul 01 2009 - 21:10:16 MDT