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!
! This example shows how to create a dataset in a particular group.
! It opens the file created in the previous example and creates two datasets.
! Absolute and relative dataset names are used.
!
PROGRAM GRPDSETEXAMPLE
USE HDF5 ! This module contains all necessary modules
IMPLICIT NONE
CHARACTER(LEN=10), PARAMETER :: filename = "groupsf.h5" ! File name
CHARACTER(LEN=15), PARAMETER :: groupname = "MyGroup/Group_A" ! Group name
CHARACTER(LEN=13), PARAMETER :: dsetname1 = "MyGroup/dset1" ! Dataset name
CHARACTER(LEN=5), PARAMETER :: dsetname2 = "dset2" ! dataset name
INTEGER(HID_T) :: file_id ! File identifier
INTEGER(HID_T) :: group_id ! Group identifier
INTEGER(HID_T) :: dataset_id ! Dataset identifier
INTEGER(HID_T) :: dataspace_id ! Data space identifier
INTEGER :: i, j
INTEGER :: error ! Error flag
INTEGER, DIMENSION(3,3) :: dset1_data ! Data arrays
INTEGER, DIMENSION(2,10) :: dset2_data !
INTEGER(HSIZE_T), DIMENSION(2) :: dims1 = (/3,3/) ! Datasets dimensions
INTEGER(HSIZE_T), DIMENSION(2) :: dims2 = (/2,10/)!
INTEGER :: rank = 2 ! Datasets rank
!
!Initialize dset1_data array
!
do i = 1, 3
do j = 1, 3
dset1_data(i,j) = j;
end do
end do
!
!Initialize dset2_data array
!
do i = 1, 2
do j = 1, 10
dset2_data(i,j) = j;
end do
end do
!
! Initialize FORTRAN predefined datatypes.
!
CALL h5open_f(error)
!
! Open an existing file.
!
CALL h5fopen_f (filename, H5F_ACC_RDWR_F, file_id, error)
!
! Create the data space for the first dataset.
!
CALL h5screate_simple_f(rank, dims1, dataspace_id, error)
!
! Create a dataset in group "MyGroup" with default properties.
!
CALL h5dcreate_f(file_id, dsetname1, H5T_NATIVE_INTEGER, dataspace_id, &
dataset_id, error)
!
! Write the first dataset.
!
CALL h5dwrite_f(dataset_id, H5T_NATIVE_INTEGER, dset1_data, error)
!
! Close the dataspace for the first dataset.
!
CALL h5sclose_f(dataspace_id, error)
!
! Close the first dataset.
!
CALL h5dclose_f(dataset_id, error)
!
! Open an existing group in the specified file.
!
CALL h5gopen_f(file_id, groupname, group_id, error)
!
!Create the data space for the second dataset.
!
CALL h5screate_simple_f(rank, dims2, dataspace_id, error)
!
! Create the second dataset in group "Group_A" with default properties.
!
CALL h5dcreate_f(group_id, dsetname2, H5T_NATIVE_INTEGER, dataspace_id, &
dataset_id, error)
!
! Write the second dataset.
!
CALL h5dwrite_f(dataset_id, H5T_NATIVE_INTEGER, dset2_data, error)
!
! Close the dataspace for the second dataset.
!
CALL h5sclose_f(dataspace_id, error)
!
! Close the second dataset.
!
CALL h5dclose_f(dataset_id, error)
!
! Close the group.
!
CALL h5gclose_f(group_id, error)
!
! Close the file.
!
CALL h5fclose_f(file_id, error)
!
! Close FORTRAN predefined datatypes.
!
CALL h5close_f(error)
END PROGRAM GRPDSETEXAMPLE
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