Re: [netcdf-java] question about reading netcdf files using Java

• To: Chad Saxon <usmgoldeneagle@xxxxxxxxx>
• Subject: Re: [netcdf-java] question about reading netcdf files using Java
• From: "Robert B. Schmunk" <Robert.B.Schmunk@xxxxxxxx>
• Date: Mon, 19 Jan 2009 21:41:21 -0500

On Jan 16, 2009, at 10:26, Chad Saxon wrote:

i downloaded the current stable version 2.2.22 and looked throughout
all the jar files to see what was there. the examples given online @ 
https://www.unidata.ucar.edu/software/netcdf/java/examples/
 show imports such as:

import ucar.multiarray.ArrayMultiArray;
import ucar.multiarray.IndexIterator;
[etc.]

ive looked through all the jar files after i have downloaded the
minimal library and the complete zip file and i havent found any of
these.

Chad,

Note that the examples at the webpage above have a header that
says

> Note: These examples use the old version 1 Java netCDF interface,
> which we do not recommend for new development. Instead, please use
> NetCDF Java Library (Version 2), which is more efficient, simpler,
> and provides better support for remote access using HTTP or
> DODS. Similar examples are available in the NetCDF Java (version 2)
> User's Manual.

The cited user's manual is linked on the netCDF Java homepage, but
it's somewhat hidden away as it's listed as the last line under the
NJ 2.2.20 distribution. It's also a bit "spare' in its documentation,
so you will find it useful to browse the Javadoc APIs.

i guess i am confused as to what jar file(s) i need to include
in my netbeans project before i can start reading netcdf files.
basically as i said a above all i would like to do right now is to
open the netcdf file and get some data.

I'm the author of the Panoply netCDF viewer. Fundamentally, it only
requires the netcdf-2.2.22.jar or netcdf-4.0.jar to operate, but either
of those jars in turn requires several other jars lest you run into a
load of errors at run time. Here's what I've ended up having to include:

netcdf-2.2.22.jar or netcdf-4.0.jar
bufr-1.4.jar
commons-codec-1.3.jar
commons-httpclient-3.1.jar
commons-logging-1.1.jar
grib-6.0.jar
jdom.jar
opendap-2.1.jar
slf4j-jdk14.jar

Most of these can be found in the "complete zip file". I'm using
the separate netCDF-N.N jar as I don't need the UI version that's
in the complete zip. The slf4j jar is also not in the zip, but
is linked elsewhere on the netCDF Java page. Everything else in
the zip I'vemanaged to do without, so far.


--
Robert B. Schmunk, Robert.B.Schmunk@xxxxxxxx

• References:
  • [netcdf-java] question about reading netcdf files using Java
    • From: Chad Saxon