Re: [netcdf-java] Reading an OPeNDAP URL using a constraint expression.

  • To: John Caron <caron@xxxxxxxxxxxxxxxx>
  • Subject: Re: [netcdf-java] Reading an OPeNDAP URL using a constraint expression.
  • From: Mike McCann <mccann@xxxxxxxxx>
  • Date: Thu, 10 May 2012 15:47:35 -0700 (PDT)

On May 10, 2012, at 12:50 PM, John Caron <caron@xxxxxxxxxxxxxxxx> wrote:

> On 5/10/2012 1:40 PM, Brian Schlining wrote:
>> Hi John,
>> Thanks for getting back to me.
>>> >  
>>> > You cant open a dataset with a constraint expression in netcdf-Java.
>> Interestingly, that's not exactly true. Apparently one can, it's just not 
>> *really* constrained. Or I should say, everything is constrained *except* 
>> the data in the variable. 
> We've been experimenting with allowing constrained datasets, but obviously 
> its not done. Im of the opinion its not the right thing to do, because things 
> like metadata cant be kept consistent. 

Hi John,

Brian and I are working on implementing an ideal way to get data from a 
relational database that contains in situ measurements from platforms that 
produce mostly trajectory feature type data. We've put the data into a 
GeoSpatial RDBMS so that we can take advantage of the arbitrary column and 
spatial indexing capabilities. 

We have a web application that provides previews of the data and can generate 
urls for service calls (much like erddap). We would like our users to load the 
data via such a service call directly into tools that use netcdf-java. 

If there is some way to make the metadata consistent perhaps we can discuss 

Best regards,

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