Re: extracting data from a field

Cameron,

>Date: Fri, 3 Dec 1999 15:17:53 +1100 (AEDT)
>From: Cameron Shepherdley AutoTAF Project <camshep@xxxxxxxxxx>
>To: visad-list@xxxxxxxxxxxxx
>Subject: extracting data from a field

In the above message, you wrote:

> I am trying to traverse through the structure of a field and extract the data
> for verification purposes.

In situations like this I find using the jdb (Java debugger) utility
more productive than writing code.

> Here is a snippet of code.
> 
> DataImpl mofStructure = plain.open(args[0]); //open and load netcdf file
> FieldImpl mofField = (FieldImpl)mofStructure; //convert to fieldimpl
> Data mofData = mofField.getSample(0);  //get first sample
> 
> The data object received from 'getSample()' is of type Real.
> It should be tuple however I cannot cast it to Tuple and therefore cannot
> access the data (through getData() from tuple).
> How do I access the data?

Would you please send me the output of executing "ncdump -h" on
your input file so that I can see what type of VisAD data object
visad.data.netcdf.Plain should return.  Thanks.

--------
Steve Emmerson   <http://www.unidata.ucar.edu>