Previous: NF90_INQ_GRP_FULL_NCID, Up: Groups


3.11 Create a New Group: NF90_DEF_GRP

Create a group. Its location id is returned in new_ncid.

Usage

       function nf90_def_grp(parent_ncid, name, new_ncid)
         integer, intent(in) :: parent_ncid
         character (len = *), intent(in) :: name
         integer, intent(out) :: new_ncid
         integer :: nf90_def_grp
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

NF90_NOERR
No error.
NF90_EBADID
Bad group id.
NF90_ENAMEINUSE
That name is in use. Group names must be unique within a group.
NF90_EMAXNAME
Name exceed max length NF90_MAX_NAME.
NF90_EBADNAME
Name contains illegal characters.
NF90_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 NF90_OPEN).
NF90_ESTRICTNC3
This file was created with the strict netcdf-3 flag, therefore netcdf-4 operations are not allowed. (see NF90_OPEN).
NF90_EHDFERR
An error was reported by the HDF5 layer.
NF90_EPERM
Attempt to write to a read-only file.
NF90_ENOTINDEFINE
Not in define mode.

Example

     C     Create the netCDF file.
           retval = nf90_create(file_name, NF90_NETCDF4, ncid)
           if (retval .ne. nf90_noerr) call handle_err(retval)
     
     C     Create a group and a subgroup.
           retval = nf90_def_grp(ncid, group_name, grpid)
           if (retval .ne. nf90_noerr) call handle_err(retval)
           retval = nf90_def_grp(grpid, sub_group_name, sub_grpid)
           if (retval .ne. nf90_noerr) call handle_err(retval)