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20010503: NC_UNLIMITED

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  • Subject: 20010503: NC_UNLIMITED
  • Date: Thu, 03 May 2001 12:55:34 -0600
Neil,

Did you remember to call nc_enddef(ncfileid) after defining your
dimension and variable?

Did you remember to call nc_close(ncfileid) after writing-out the data
value?

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

> To: address@hidden
> From: Neil David Adams <address@hidden>
> Subject: NC_UNLIMITED
> Organization: UCAR/Unidata
> Keywords: 200105030111.f431BTp21774
>
>       I'm having a hassle with the UNLIMITED dimension definition. I've
> used nc_def_dim to define my time variable as UNLIMITED but this sets the
> dimension to 0 and will then not write any data to disk that uses time as
> a dimension. So I'm confused as to how I go about setting time as an
> UNLIMITED dimension but giving it a dimensional value other than zero so I
> can actually write data to to the file. My code lines are as follows :
> 
> status = nc_def_dim(ncfileid,"time",NC_UNLIMITED,&timid);
> dimids1[0] = timid;
> status = nc_def_var(ncfileid,"time",NC_FLOAT,1,dimids1,&timid);
> timestep = 0.0;
> status = nc_put_var_float(ncfileid,timid,&timestep);
>  
> At this stage no value is actually written out for the variable
> "time". When I use ncdump to look at the file created all the dimensions
> are defined but with time = UNLIMITED; // currently 0
> 
> all variables that don't have time as a dimension are written out to disk
> ok.
> 
> Cheers
> Neil
> 
>  -- 
> _____________________________________________________________________
> Neil Adams, Senior Meteorologist
> Antarctic CRC and Bureau of Meteorology
> Email: address@hidden   Ph : Australia (08) 83662686
> Post:         Bureau of Meteorology
>                 PO Box  421
>               Kent Town, SA
>                 Australia    5071
> _____________________________________________________________________