Hi all,
I am kinda new to IDV and have some questions about subsetting METAR data.
1. Assuming we are using netCDF METAR, how does the end user subset on the
local client(sequence of actions)? Is the subsetting possible if IDV was
invoked through Java WebStart?
2. After the user is done subsetting, if she saves the bundle file, is the
subsetting info (latitude and longitude parameters) stored in .xidv file? If
so what Java Class and attributes? We are thinking of parsing a template
.xidv file (generated after subsetting), replacing the data source, lat/long
info then pass this file as a parameter (-bundle) to jnlp. This jnlp will
invoke IDV on client's machine. We hope that the subsetting will happen
automatically this way without user intervention.
3. We also want the IDV to load data with preconfigured parameters like
temperature, pressure. Again we think that we can achieve this with the
above approach of modifying the bundle file with these parameters. Do you
think this is the best way to go?
Sorry for the deluge of questions. As I said I am new to IDV and couldn't
find much documentation on this stuff. Thanks for your help.
Regards,
Nilesh.
On Tue, Nov 11, 2008 at 3:45 PM, Don Murray <dmurray@xxxxxxxxxxxxxxxx>wrote:
> Hi Felix-
>
> I'm guessing that you are using the netCDF METAR data. Unfortunately,
> the underlying netCDF-Java library does not support subsetting in
> a lat/lon box (nor by time). So, currently, we end up downloading
> all the data and then subsetting on the local client. We will be
> working with the netCDF group over the next few months on point
> data access and the new API is supposed to support the lat/lon
> subsetting on the server.
>
> Don
>
> Felix Terkhorn wrote:
>
>> Hi all,
>>
>> IU LEAD group is looking to pre-configure IDV to subset a METAR data
>> product so that when loaded, only a portion of the product's spatial area
>> appears in IDV. We have some experience now with altering IDV's XML bundle
>> configuration and are wondering if there's something we can tweak within
>> that file so that a subset of the spatial area of the METAR file is shown.
>>
>> I'm cc'ing the technical contact on this project -- Nilesh -- here. He
>> will be subscribing to the list and should also be able to give more details
>> if my premise here isn't sufficient (I suspect it's a bit vague)
>>
>> Thanks,
>> Felix Terkhorn
>> IU LEAD developer
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>
> --
> *************************************************************
> Don Murray UCAR Unidata Program
> dmurray@xxxxxxxxxxxxxxxx P.O. Box 3000
> (303) 497-8628 Boulder, CO 80307
> http://www.unidata.ucar.edu/staff/donm
> *************************************************************
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>
