[svn-r3621] This commit was manufactured by cvs2svn to create branch 'hdf5_1_4'.

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cvs2svn
2001-03-13 23:42:20 -05:00
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! This example shows how to create and write a dataset attribute.
! It opens the existing file 'dset.h5', obtains the identifier of
! the dataset "/dset", defines attribute's dataspace,
! creates dataset attribute, writes the attribute, and then closes
! the attribute's dataspace, attribute, dataset, and file.
PROGRAM ATTREXAMPLE
USE HDF5 ! This module contains all necessary modules
IMPLICIT NONE
CHARACTER(LEN=8), PARAMETER :: filename = "dsetf.h5" ! File name
CHARACTER(LEN=4), PARAMETER :: dsetname = "dset" ! Dataset name
CHARACTER(LEN=4), PARAMETER :: aname = "attr" ! Attribute name
INTEGER(HID_T) :: file_id ! File identifier
INTEGER(HID_T) :: dset_id ! Dataset identifier
INTEGER(HID_T) :: attr_id ! Attribute identifier
INTEGER(HID_T) :: aspace_id ! Attribute Dataspace identifier
INTEGER(HSIZE_T), DIMENSION(1) :: adims = (/2/) ! Attribute dimension
INTEGER, DIMENSION(2) :: attr_data = (/100,200/)! Attribute data
INTEGER :: arank = 1 ! Attribure rank
INTEGER :: error ! Error flag
!
! Initialize FORTRAN predefined datatypes.
!
CALL h5open_f(error)
!
! Open an existing file.
!
CALL h5fopen_f (filename, H5F_ACC_RDWR_F, file_id, error)
!
! Open an existing dataset.
!
CALL h5dopen_f(file_id, dsetname, dset_id, error)
!
! Create the data space for the attribute.
!
CALL h5screate_simple_f(arank, adims, aspace_id, error)
!
! Create dataset attribute.
!
CALL h5acreate_f(dset_id, aname, H5T_NATIVE_INTEGER,aspace_id, &
attr_id, error)
!
! Write the attribute data.
!
CALL h5awrite_f(attr_id, H5T_NATIVE_INTEGER, attr_data, error)
!
! Close the attribute.
!
CALL h5aclose_f(attr_id, error)
!
! Terminate access to the data space.
!
CALL h5sclose_f(aspace_id, error)
!
! End access to the dataset and release resources used by it.
!
CALL h5dclose_f(dset_id, error)
!
! Close the file.
!
CALL h5fclose_f(file_id, error)
!
! Close FORTRAN predefined datatypes.
!
CALL h5close_f(error)
END PROGRAM ATTREXAMPLE