Hi Rob,
I did end the definition mode in the code. I just forgot to put it in
the snippet I sent.
see the correction below....
Here's how I setup the file for writing:
// create netCDF dataset with perfomance options: enter define mode
status = nc_create(outfile,NC_64BIT_OFFSET,&ncid);
if(status != NC_NOERR) handle_error(status);
// Define a title for the file
status = nc_put_att_text(ncid,NC_GLOBAL,"Title",strlen(title),title);
// define dimensions: from name and length
status = nc_def_dim(ncid,"Lat",latlen,&lat_dimid);
if (status != NC_NOERR) handle_error(status);
status = nc_def_dim(ncid,"Lon",lonlen,&lon_dimid);
if (status != NC_NOERR) handle_error(status);
status = nc_def_dim(ncid,"Lev",levlen,&lev_dimid);
if (status != NC_NOERR) handle_error(status);
dim[0] = lev_dimid;
dim2d[0] = lat_dimid;
dim2d[1] = lon_dimid;
dim3d[0] = lev_dimid;
dim3d[1] = lat_dimid;
dim3d[2] = lon_dimid;
Print("Define variables: from name, type");
status = nc_def_var(ncid,"Latitude",NC_FLOAT,2,dim2d,&laid);
if(status != NC_NOERR) handle_error(status);
status = nc_def_var(ncid,"Longitude",NC_FLOAT,2,dim2d,&loid);
if(status != NC_NOERR) handle_error(status);
status = nc_def_var(ncid,"Levels",NC_SHORT,1,dim,&leid);
if(status != NC_NOERR) handle_error(status);
// Setting up the temperature variable
status = nc_def_var(ncid,"Temperature",NC_SHORT,3,dim3d,&tid);
if(status != NC_NOERR) handle_error(status);
status =
nc_put_att_text(ncid,tid,"Units",strlen(TEMP_UNITS),TEMP_UNITS);
if (status != NC_NOERR) handle_error(status);
pos = RetPos(sptr,130);
status = nc_put_att_double(ncid,tid,"scale",NC_DOUBLE,1,&sptr[pos]-
>scale);
if (status != NC_NOERR) handle_error(status);
status = nc_put_att_double(ncid,tid,"offset",NC_DOUBLE,1,&sptr[pos]-
>offset);
if (status != NC_NOERR) handle_error(status);
Print("Ending definition mode"); status = nc_enddef(ncid);
if(status != NC_NOERR) handle_error(status);
// Fetching the data, packing it, checking it before writing to file
pos = RetPos(sptr,130);
swd->t = GetNlevsP(f,wk->array_size,sptr[pos]->nlev,sptr[pos]-
>pnum,sptr[pos]->scale,sptr[pos]->offset);
// Checking the Maxs and mins for each level
int lev;
for(lev = 0; lev < wk->nlev; lev++) {
printf("Lev: %d\t",lev);
MMSI(swd->t[lev],wk->nlat,wk->nlon,sptr[pos]->scale,sptr[pos]-
>offset);
}
status = nc_put_var_short(ncid,tid,&swd->t[0][0][0]);
if(status != NC_NOERR) handle_error(status);
Print("Closing the file...");
status = nc_close(ncid);
if(status != NC_NOERR) handle_error(status);
....
Marston Johnston, PhD Student
Radio and Space Science
Chalmers University of Technology
Gothenburg Sweden
marston at chalmers.se
cell: +46 736 637 909
Skype ID: marston.johnston
On May 25, 2009, at 6:05 PM, Roy Mendelssohn wrote:
I don't see a call to end definition mode - nc_enddef - needs to be
done after defining dimensions and attributes and before writing data.
-Roy
On May 25, 2009, at 8:52 AM, Marston Johnston wrote:
Hi,
I'm trying to write a series of arrays to a single netcdf file that
will be about 1/2 Gb when done. The datasets are 1D, 2D, and 3D
arrays of packed data.
I'm having trouble writing the data correctly using the examples
given in the manual and the netcdf example directory.
My problem is that when I check the data before writing, everything
looks fine but when I check the data written to netcdf file the
arrays are all screwed up with the max and mins for each level
being incorrect and some slices of the 3D array being garbled.
any help would be greatly appreciated!
/Marston
Marston Johnston, PhD Student
Radio and Space Science
Chalmers University of Technology
Gothenburg Sweden
marston at chalmers.se
cell: +46 736 637 909
Skype ID: marston.johnston
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Roy Mendelssohn
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NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
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e-mail: Roy.Mendelssohn@xxxxxxxx (Note new e-mail address)
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