[ncl-install] ncl not seeing NCARG_ROOT?

[Dave Burns]

Thanks for the tip, Mary. Maybe I left out the NCARG_NCARG=/usr/share/ncarg,
I think I missed that.

I ended up solving my problem by installing the precompiled binary for
debian. So far it seems close enough to ubuntu to work. The person I was
trying to help seems satisfied.
cheers,
Dave

On Wed, Feb 21, 2018 at 8:34 AM, Mary Haley <haley at ucar.edu> wrote:

> Dave,
>
> Jeremy is right about the Ubuntu installation: it puts things in /usr/bin,
> /usr/lib and /usr/share. The /usr/share directory is where the 'ncarg'
> directory gets installed.
>
> So, in order for NCL to work, you have to set two environment variables:
>
> NCARG_ROOT=/usr
> NCARG_NCARG=/usr/share/ncarg
>
> This is necessary because by default, NCL looks in $NCARG_ROOT/lib/ncarg
> to find things like font tables and map databases. When you set
> NCARG_NCARG, NCL will look in that first.
>
> However, as you saw, the load commands will still not work, because they
> are effectively looking in /usr/lib/ncarg/..., which doesn't exist with the
> Ubuntu install.
>
> To fix, you need to change the load commands to replace "lib" with "share"
>
> load "$NCARG_ROOT/
> ​share
> /ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/
> ​share
> /ncarg/nclscripts/csm/gsn_csm.ncl"
> load "$NCARG_ROOT/
> ​share
> /ncarg/nclscripts/csm/contributed.ncl"
>
> or this would also work:
>
> load "$NCARG_NCARG/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_NCARG/nclscripts/csm/gsn_csm.ncl"
> load "$NCARG_NCARG/nclscripts/csm/contributed.ncl"
>
> HOWEVER, I don't really like either of these solutions. If you need to
> share scripts with users on other systems, they may not have the same set
> up as you and then they will need to go in and fix the modified load
> commands to be what they originally were.
>
> I suggest upgrading to NCL V6.4.0 as Kevin suggested, and then you can put
> NCL wherever you want, preferably under a single root directory like
> "/usr/local/lib/ncl-6.4.0". Then, you only need to set NCARG_ROOT and the
> scripts should work without modifications. (Also, in V6.4.0, those three
> scripts and some others are loaded by default, so technically, you won't
> need to load them at all.)
>
> For the next release (NCL V6.5.0), we've added even more scripts to the
> "automatically loaded by NCL" list. For more information, see:
>
> http://www.ncl.ucar.edu/future_release.shtml#PreloadedScripts6.5.0
>
>
> --Mary
>
>
> On Fri, Feb 16, 2018 at 5:07 PM, JeremyWinick via ncl-install <
> ncl-install at ucar.edu> wrote:
>
>> I think the Ubuntu install from the repository puts the binary in
>> /usr/bin and most other stuff in /usr/share/ncarg. So if you set NCAR's
>> suggested paths it won't work or find things.
>>
>> Jeremy
>>
>> On 02/16/2018 03:36 PM, Dave Burns via ncl-install wrote:
>>
>> Hello.
>> Executing ncl on a newly installed ubuntu box and an old ncl file that
>> used to work generates this error:
>> >fatal:Could not open ($NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl)
>> >fatal:error at line 2 in file proj1.ncl
>>
>> That's odd, because NCARG_ROOT is defined and that file is openable and
>> has permissive permissions for all users:
>> >user at host:~/Downloads/1200/0214$ echo $NCARG_ROOT
>> /usr
>> >user at host:~/Downloads/1200/0214$ ls -la $NCARG_ROOT/lib/ncarg/nclscrip
>> ts/csm/gsn_code.ncl
>> -rwxr-xr-x 1 root root 490093 Jan 28  2016 /usr/lib/ncarg/nclscripts/csm/
>> gsn_code.ncl
>> >user at host:~/Downloads/1200/0214$ head  $NCARG_ROOT/lib/ncarg/nclscrip
>> ts/csm/gsn_code.ncl
>> ;
>> ;      $Id: gsn_code.ncl,v 1.238.4.3 2010-05-06 17:13:26 haley Exp $
>> ;;;;;
>>
>> So I am confused. The only way "could not open" would make sense was if
>> ncl was opening the file for write access, which still doesn't make sense.
>>
>>
>> Here are the first lines from the ncl file:
>>
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"      ; These
>> four libraries are automatically
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"       ; loaded
>> from NCL V6.4.0 onward.
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"   ; No need
>> for user to explicitly load.
>>
>>
>> How do I fix this?
>> thanks,
>> Dave
>>
>>
>> _______________________________________________
>> ncl-install mailing list
>> List instructions, subscriber options, unsubscribe:http://mailman.ucar.edu/mailman/listinfo/ncl-install
>>
>>
>>
>> _______________________________________________
>> ncl-install mailing list
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-install
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/ncl-install/attachments/20180222/79c91377/attachment.html>