[gradsusr] Request environment variable for shapefiles

[Jennifer Adams]

Brian and I are now talking about adding GASHP to the GrADS-relevant  
environment variables, rather than overload GASCRP. I think your  
suggested search order is correct. --Jennifer


On Aug 2, 2011, at 2:06 PM, Dave Allured wrote:

> Jennifer,
>
> Using GASCRP would be sufficient.  However, I suggest this search  
> order:
>
> 1. current dir
> 2. dirs in GASCRP
> 3. GADDIR
>
> This is because the GADDIR install directory is read-only for me and
> some other users, and it would be good to have a clean mechanism to
> override shapefile collections that might hypothetically find their
> way into GADDIR.
>
> Thanks for your consideration.
>
> --Dave
>
> On 8/2/2011 8:47 AM, Jennifer Adams wrote:
>> How about using the directories in the GASCRP variable?
>> 1. current dir
>> 2. GADDIR
>> 3. dirs in GASCRP
>>
>> That requires the least amount of new code and documentation.
>> --Jennifer
>>
>>
>> On Aug 1, 2011, at 2:03 PM, Dave Allured wrote:
>>
>>> Hi. This is a feature request for a separate environment variable
>>> for the path to shapefiles. In recent GrADS versions, GADDIR is
>>> used for both installation data files and shapefiles. Mixing an
>>> installation directory with a user supplemented directory can create
>>> some problems.
>>>
>>> I think a new environment variable such as GASHAPEDIR would be most
>>> helpful. It would be nice if multiple paths could be specified as a
>>> space separated list, as is now the case for GASCRP. For
>>> compatibility, I suggest that the search order for shapefiles be as
>>> follows:
>>>
>>> 1. Current directory.
>>> 2. Paths in GASHAPEDIR, left to right.
>>> 3. GADDIR.
>>>
>>> There are other ways to accomplish the goal. Multiple paths in
>>> GADDIR is one of them. A separate environment variable seems most
>>> user friendly to me.
>>>
>>> If desired, I would be willing to attempt a patch for this. What do
>>> you think?
>>>
>>> --Dave A.
>>> NOAA/PSD/CIRES
>>> Boulder, Colorado
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--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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