Re: [Geotools-devel] Re: [Geoserver-devel] WCS - netCDF resource available

[Norman B. <nor...@ho...>]

>From: Bryce L Nordgren <bno...@fs...>
>To: Chris Holmes <ch...@op...>
>CC: ale...@gm..., "Woolf, A (Andrew)" 
<A....@rl...>,   Geoserver-devel 
<geo...@li...>,   geotools-devel 
<geo...@li...>,   
geo...@li...,   Norman Barker 
<nor...@ho...>, sim...@ti...
>Subject: Re: [Geotools-devel] Re: [Geoserver-devel] WCS - netCDF 
resource available
>Date: Thu, 5 May 2005 11:07:15 -0600
>
>
>
> > >
> > > > Hi,
> > > >
> > > > I have posted again since no one replied, I am available 
to develop
> > > > the netCDF plugin for the Geoserver WCS is you want, RSI 
have
> > > > resourced my time.  I have also written a netCDF to 
geotiff routine
> > > if
> > > > that is of any use.
> > > >
> > > > Please advise on what to do next.
> > > >
> > > > Thanks,
> > > >
> > > > Norman Barker
>
>
>{Pounce}!
>
>Ah hah!!  I have a number of uses for you, depending on what perks your
>interest.
>
>1] Geotiff could use some more user-defined projection support.  Most of 
it
>is there but commented out because the underpinnings in Geotools 
changed.
>If you want to learn how to make a CRS in Geotools, this should make a 
good
>framework within which to learn (especially if you already know 
Geotiff).
>http://jira.codehaus.org/browse/GEOT-507  Simone may already be fiddling
>with this, so we'll have to get you talking to him.
>2] No one has decided which "flavors" of NetCDF Geotools will 
support.
>There are eight "conventions" posted on the website:
>http://my.unidata.ucar.edu/content/software/netcdf/conventions.html.  
Some
>are super/subsets of others, some are distinct.  I want to support WRF (
>http://jira.codehaus.org/browse/GEOT-505), which does not use any of 
these
>conventions.  My trouble is, I don't know which applications use which
>conventions.
>
>My first inclination is to suggest that you develop a NetCDF variable 
<->
>GridCoverage2D adapter.  You will then be able to use this for any of 
the
>supported conventions. Each convention, then, will require that you 
adapt
>the georeferencing information from the file to the Geotools framework.
>
>Let me know how you'd like to proceed.  If we (you, me, simone, alessio,
>others) come up with a plan of attack we can document
>http://jira.codehaus.org/browse/GEOT-127 and flesh out some sub-tasks.
>Interested parties can edit/comment the appropriate task.  This is 
probably
>the best way to divide up the pie.  So far, all interested parties are 
up
>to their eyeballs in work, whether related to Geotools or not.
>
>Bryce
>


Thanks for all the mail, I am starting to look at the coverage API in 
geotools, I think (after discussion with Andrew Woolf some weeks ago) that I 
will initially implement a netCDF plugin compliant with Climate-Forecast  
netCDF, I still don't see how we can implement temporal support in geoserver 
(though the ability to subset on parameter, spatial is cool).  The idea 
being that you have a coverage, and time is a parameter on that coverage 
that actually relates to several files rather than one, wheras the current 
model assumes the parameter is contained in one file (correct me if I am 
wrong on this, I will be glad to hear it!).

The Galeon project 
http://my.unidata.ucar.edu/content/projects/THREDDS/GALEON/GALEON-Activity-Plan.htm 
has some initial use cases that I was going to try to implement.

I would like to help with geotiff (since when I used to be a humble Delphi 
programmer I had to rewrite libgeotiff in pascal as an exercise!), but 
netCDF comes first in our priorities.

Moving geoserver forward with netCDF coverage would be a big step forward, 
and thanks for all your help and suggestions.

Norman Barker