Hi Nick:
Im not sure what your use case is. Are you generating the data values yourself,
or do they come out of a netcdf file?
NJ reads the values when present in the NcML. I assume this is about writing?
BTW, I will be on vacations until next week, You might want to look at
NcMLWriter.java in the meanwhile.
John
Nick Bower wrote:
I want to verify the api support for variable values in NcML.
Some background - we're looking at NcML as a potential cross-platform
format to exchange realtime data via Java/.Net messaging. We already
use NetCDF extensively in our organisation where we've conventionally
collected long periods of data at a single place, but the idea is that
we want to explore a more modern distributed realtime messaging
architecture where data volume in any single message is low, but
delivery frequency and schema variability from different sources is
high. In this way NcML could be used to represent measurement datums,
say one NcML message specifying a measurement timestamp from a remote
logging station contain the measurements of several instruments. NcML
also has the benefit of 1) facilitating downstream aggregation by
message consumers directly to NetCDF, 2) GML extension. We're using
Mule ESB (Java) to integrate this btw.
My question regards the support for variable "values". Support exists
in the xsd, but appears totally lacking in both the java api and
ncdump/ncgen utilities. Both the api javadoc and utilities man pages
explicity say that any generated NcML will not include values.
Can someone please clarify what is the status of supporting variable
values in NcML, and what is the roadmap for api inclusion?
Thanks, Nick
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