3.9 Create a New Group: NF_DEF_GRP
Create a group. Its location id is returned in new_ncid.
Usage
INTEGER FUNCTION NF_DEF_GRP(INTEGER PARENT_NCID, CHARACTER*(*) NAME,
INTEGER NEW_NCID)
PARENT_NCID- The group id of the parent group.
NAME- The name of the new group.
NEW_NCID- The ncid of the new group will be placed there.
Errors
NF_NOERR- No error.
NF_EBADID- Bad group id.
NF_ENAMEINUSE- That name is in use. Group names must be unique within a group.
NF_EMAXNAME- Name exceed max length NF_MAX_NAME.
NF_EBADNAME- Name contains illegal characters.
NF_ENOTNC4- Attempting a netCDF-4 operation on a netCDF-3 file. NetCDF-4
operations can only be performed on files defined with a create mode
which includes flag HDF5. (see NF_OPEN).
NF_ESTRICTNC3- This file was created with the strict netcdf-3 flag, therefore
netcdf-4 operations are not allowed. (see NF_OPEN).
NF_EHDFERR- An error was reported by the HDF5 layer.
NF_EPERM- Attempt to write to a read-only file.
NF_ENOTINDEFINE- Not in define mode.
Example
In this exampe rom nf_test/ftst_groups.F, a groups is reated, and then
a sub-group is created in that group.
C Create the netCDF file.
retval = nf_create(file_name, NF_NETCDF4, ncid)
if (retval .ne. nf_noerr) call handle_err(retval)
C Create a group and a subgroup.
retval = nf_def_grp(ncid, group_name, grpid)
if (retval .ne. nf_noerr) call handle_err(retval)
retval = nf_def_grp(grpid, sub_group_name, sub_grpid)
if (retval .ne. nf_noerr) call handle_err(retval)
