Re: A ruby script to parse Grads CTL files

Hi Mary,

Thanks...that sounds great. It may be appropriate to include the
script in a GrADS page - many people may have been using GrADS
before migrating to NCL and it may be useful to have some utilities
that can help ease the migration.

cheers,

saji

* Mary Haley <haley_at_ucar.edu> [2008-02-12 15:19:26 -0700]:

>
> Hi Saji,
>
> Thanks for this contribution! We would like to put this in the NCL
> Applications page section, if you are agreeable. We could start a
> separate Ruby or GrADS page, or we can add it to an existing file I/O
> page.
>
> We encourage other users who have things they'd like to contribute to
> let us know (via ncl-talk if possible). We are happy to include them
> and give you proper credit, of course.
>
> --Mary
>
>
> On Mon, 11 Feb 2008, Saji N Hameed wrote:
>
>> Dear NCL-ers,
>>
>> Here is a ruby script that is "supposed to" parse a GrADs ctl file and
>> generate NCL code to read in the data and create a COARDS
>> compliant netcdf data object.
>>
>> This is a preview version and some essential features may
>> not be implemented: for example currently there is only
>> support for linear grids (I will add support for gaussian
>> grids over the weekend or better if somebody chipped in
>> and added those code, that will be nice too). Meanwhile
>> I would appreciate feedback and reports on possible bugs/errors.
>>
>> To use:
>> -1. Hopefully you have ruby installed in your system
>>
>> 0. untar the attached tar file ctl2ncl.tar, in somewhere like
>> $HOME/bin
>>
>> 1. point the $PATH variable to this location
>> for example, PATH=$PATH:$HOME/bin ; export PATH
>> OR
>> set path=($HOME/bin $path)
>>
>> 2. after sourcing your .cshrc or .bashrc,
>> run ctl2ncl.rb and follow the instructions
>>
>> 3. the help screen is shown below:
>> Usage: ctl2ncl.rb [options]
>> A grads ctl parser and NCL script generator based on ruby
>> Specific options:
>> -i, --infile=CTLFILE the grads ctl file
>> -o, --outfile=NCLFILE the NCL script file
>> -v, --vars *NUM The variables
>> --plot add code to display figures
>>
>> Common options:
>> --help Show this message
>> --version Show version
>>
>>
>> cheers,
>>
>> saji
>> ...
>>
>> * David F Porter <PorterDF_at_Colorado.EDU> [2008-01-23 15:53:23 -0700]:
>>
>>> Sorry if this has been covered, by I've exhausted the search function with
>>> no real results.
>>>
>>> I am looking to read in some large 4-Byte Float big-endian binary data onto
>>> my little-endian machine. The problem I am having is that each file
>>> corresponds to ONE time period, but each variable in the file has different
>>> dimensions, some 2D and some 3D. Because of the varying sizes, I feel that
>>> I cannot simply use the "record number". Also, I only want some of the
>>> variables (to save space after loading 300 of these files).
>>>
>>> I'm not sure if it matters at this point, but the variables are on a
>>> gaussian grid.
>>>
>>> Dave
>>>
>>
>> --
>> Saji N. Hameed
>>
>> APEC Climate Center +82 51 668 7470
>> National Pension Corporation Busan Building 12F
>> Yeonsan 2-dong, Yeonje-gu, BUSAN 611705 saji_at_apcc21.net
>> KOREA
>>
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-- 
Saji N. Hameed
APEC Climate Center          				+82 51 668 7470
National Pension Corporation Busan Building 12F         
Yeonsan 2-dong, Yeonje-gu, BUSAN 611705			saji_at_apcc21.net
KOREA
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