Re: [netcdf-java] Cant read ...: not a valid CDM file.

  • To: Christian Ward-Garrison <cwardgar@xxxxxxxx>
  • Subject: Re: [netcdf-java] Cant read ...: not a valid CDM file.
  • From: David Rush <david.rush@xxxxxxx>
  • Date: Tue, 25 Jul 2017 13:01:11 -0600
Christian:

That's a good question.  I'm not able to see what's in it, so can't say if
the "higher ups" would approve dissemination, but I will investigate.

Logistically it might be tricky simply because it's a large (16 MB) file.

David

On Tue, Jul 25, 2017 at 12:57 PM, Christian Ward-Garrison <cwardgar@xxxxxxxx
> wrote:

> Hi David,
>
> It's hard to say. Can you provide us the file?
>
> Cheers,
> Christian
>
> On Tue, Jul 25, 2017 at 12:50 PM, David Rush <david.rush@xxxxxxx> wrote:
>
>> Hi.  I'm completely new to netcdf and have been given some netcdf data to
>> read.
>>
>> I'm using netcdfAll-4.6.10.jar
>>
>> I found the example program in the tutorial and have implemented
>> something very similar:
>>
>> import ucar.nc2.NetcdfFile;
>>
>> public class ReadNetCDF {
>>
>>   public static void main(String[] args) throws Exception {
>>     ReadNetCDF x = new ReadNetCDF();
>>     x.read("netCDF/example_nc");
>>   }
>>
>>   public void read(String fileName) throws Exception {
>>     NetcdfFile ncFile = null;
>>     try {
>>       ncFile = NetcdfFile.open(fileName);
>>       System.out.println("ncFile = " + ncFile);
>>       this.read(ncFile);
>>     } finally {
>>       if (ncFile != null) {
>>         ncFile.close();
>>       }
>>     }
>>   }
>>
>>   private void read(NetcdfFile nf) throws Exception {
>>     System.out.println("nf = " + nf);
>>   }
>>
>> }
>>
>> When I run that I get:
>>
>> Exception in thread "main" java.io.IOException: java.io.IOException: Cant
>> read netCDF/example_nc: not a valid CDM file.
>>
>> at ucar.nc2.NetcdfFile.open(NetcdfFile.java:427)
>>
>> Suggestions?  Is the example_nc file I was given likely corrupt?
>>
>> David
>>
>>
>> E-Mail to and from me, in connection with the transaction
>> of public business, is subject to the Wyoming Public Records
>> Act and may be disclosed to third parties.
>>
>> _______________________________________________
>> NOTE: All exchanges posted to Unidata maintained email lists are
>> recorded in the Unidata inquiry tracking system and made publicly
>> available through the web.  Users who post to any of the lists we
>> maintain are reminded to remove any personal information that they
>> do not want to be made public.
>>
>>
>> netcdf-java mailing list
>> netcdf-java@xxxxxxxxxxxxxxxx
>> For list information or to unsubscribe, visit:
>> http://www.unidata.ucar.edu/mailing_lists/
>>
>
>

-- 

E-Mail to and from me, in connection with the transaction 
of public business, is subject to the Wyoming Public Records 
Act and may be disclosed to third parties.
  • 2017 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the netcdf-java archives: