Re: [Opengrads-devel] NetCDF-4 opendap support and gadap

[Jennifer A. <jm...@co...>]

On Oct 28, 2009, at 6:01 PM, Arlindo da Silva wrote:

> On Wed, Oct 28, 2009 at 7:33 AM, Jennifer Adams <jm...@co...>  
> wrote:
>
> On Oct 27, 2009, at 8:57 PM, Arlindo da Silva wrote:
>
> > Hi Jennifer,
> >
> >     What are your plans for dealing with gadap when adopting the new
> > NetCDF-4 with built-in OPeNDAP support? So far, I have been using
> > NetCDF-4 with an external (full) OPeNDAP library (libdap), which
> > also has what gadap needs.  Would we still be able to use the full
> > libdap alongside NetCDF-4 with built-in OPeNDAP?
> Sure. Why not? The netcdf-4 library with DAP replaces libnc-dap; gadap
> library needs libdap.
>
> The question is whether the OPeNDAP layer underneath NetCDF-4 causes  
> any namespace conflict. I got the impression from Dennis that it  
> would. I take that you've already checked this and showed it to  
> work. Correct?
No, I haven't tried it. OPeNDAP's recent namespace mods really messed  
things up -- I'll be bummed if it doesn't work, but maybe if I stick  
with older versions of libdap, I'll be okay. Anyway, I haven't thought  
about sequences, I'm still just looking at the dap interface for grids  
-- the coordinate axes are not showing up properly. Xdfopen will work  
if I tell it everything it needs to know for all grid dimensions....

>
> BTW, I don't know if you noticed, but I contributed a nc-config  
> script to netcdf. This makes it much easier to discover all the  
> dependencies in the configure macros.
I was very happy to find nc-config and used that script a few times,  
but I didn't know you had contributed it. Nice work!
--Jennifer

>
>      Arlindo
>
>
>
>
> > Or else, are you rewriting gadap? From some early exchange I had
> > with Dennis, I was under the impression that we would not have any
> > other option but to rewrite gadap.
> I don't want to modify gadap -- it's working fine. Maybe one day there
> will be a good netcdf interface for station data. I haven't yet looked
> at how the netcdf-4 dap interface handles sequences (as opposed to
> grids).
> --Jennifer
>
>
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> -- 
> Arlindo da Silva
> da...@al...
> ------------------------------------------------------------------------------
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--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jm...@co...