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[netCDFPerl #NGH-715937]: Error with NetCDF::attget

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  • Subject: [netCDFPerl #NGH-715937]: Error with NetCDF::attget
  • Date: Wed, 18 May 2011 11:42:31 -0600
Alex,

> Full Name: THEPAUT Alex
> Email Address: address@hidden
> Organization: Capgemini
> Package Version:
> Operating System: Solaris/Linux
> Hardware:
> Description of problem:
> 
> Hello,
> 
> I use the function NetCDF::attget to retrieve informations about an attribute 
> :
> 
> my $l_var = "";
> NetCDF::attget($p_file, NetCDF::GLOBAL, $p_variable , \$l_var);
> 
> But the attribute doesn't exist and I get the following error:
> 
> ncattinq: ncid 5; varid -1; attname "id": NetCDF: Attribute not found
> 
> I've tried to catch the exception with an eval block, but the result is
> the same. My question is: how can I catch the error ?

To prevent error-messages from being written to the standard error stream, call 
"NetCDF::opts(0)". This will also prevent process termination by the netCDF 
library.

To determine what attributes exist for a variable, call "NetCDF::attinq()".

To determine if an attribute exists, call "NetCDF::attget()" after an initial 
call to "NetCDF::opts(0).

The guide to the netCDF-2 API can be found at 
<http://www.unidata.ucar.edu/netcdf/old_docs/really_old/guide_toc.html>. The 
netCDF-2 API is the basis of the NetCDF-Perl module.

> Best regards
> 
> Alex THEPAUT

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: NGH-715937
Department: Support netCDF Perl
Priority: Normal
Status: Closed