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-!
-! This program creates two files, copy1.h5, and copy2.h5.
-! In copy1.h5, it creates a 3x4 dataset called 'Copy1',
-! and write 0's to this dataset.
-! In copy2.h5, it create a 3x4 dataset called 'Copy2',
-! and write 1's to this dataset.
-! It closes both files, reopens both files, selects two
-! points in copy1.h5 and writes values to them. Then it
-! uses an H5Scopy to write the same selection to copy2.h5.
-! Program reopens the files, and reads and prints the contents of
-! the two datasets.
-!
-
- PROGRAM SELECTEXAMPLE
-
- USE HDF5 ! This module contains all necessary modules
-
- IMPLICIT NONE
-
- CHARACTER(LEN=8), PARAMETER :: filename1 = "copy1.h5" ! File name
- CHARACTER(LEN=8), PARAMETER :: filename2 = "copy2.h5" !
- CHARACTER(LEN=5), PARAMETER :: dsetname1 = "Copy1" ! Dataset name
- CHARACTER(LEN=5), PARAMETER :: dsetname2 = "Copy2" !
-
- INTEGER, PARAMETER :: RANK = 2 ! Dataset rank
-
- INTEGER(SIZE_T), PARAMETER :: NUMP = 2 ! Number of points selected
-
- INTEGER(HID_T) :: file1_id ! File1 identifier
- INTEGER(HID_T) :: file2_id ! File2 identifier
- INTEGER(HID_T) :: dset1_id ! Dataset1 identifier
- INTEGER(HID_T) :: dset2_id ! Dataset2 identifier
- INTEGER(HID_T) :: dataspace1 ! Dataspace identifier
- INTEGER(HID_T) :: dataspace2 ! Dataspace identifier
- INTEGER(HID_T) :: memspace ! memspace identifier
-
- INTEGER(HSIZE_T), DIMENSION(1) :: dimsm = (/2/)
- ! Memory dataspace dimensions
- INTEGER(HSIZE_T), DIMENSION(2) :: dimsf = (/3,4/)
- ! File dataspace dimensions
- INTEGER(HSIZE_T), DIMENSION(RANK,NUMP) :: coord ! Elements coordinates
- ! in the file
-
- INTEGER, DIMENSION(3,4) :: buf1, buf2, bufnew ! Data buffers
- INTEGER, DIMENSION(2) :: val = (/53, 59/) ! Values to write
-
- INTEGER :: memrank = 1 ! Rank of the dataset in memory
-
- INTEGER :: i, j
-
- INTEGER :: error ! Error flag
- LOGICAL :: status
-
-
- !
- ! Create two files containing identical datasets. Write 0's to one
- ! and 1's to the other.
- !
-
- !
- ! Data initialization.
- !
- do i = 1, 3
- do j = 1, 4
- buf1(i,j) = 0;
- end do
- end do
-
- do i = 1, 3
- do j = 1, 4
- buf2(i,j) = 1;
- end do
- end do
-
- !
- ! Initialize FORTRAN predefined datatypes
- !
- CALL h5open_f(error)
-
- !
- ! Create file1, file2 using default properties.
- !
- CALL h5fcreate_f(filename1, H5F_ACC_TRUNC_F, file1_id, error)
-
- CALL h5fcreate_f(filename2, H5F_ACC_TRUNC_F, file2_id, error)
-
- !
- ! Create the data space for the datasets.
- !
- CALL h5screate_simple_f(RANK, dimsf, dataspace1, error)
-
- CALL h5screate_simple_f(RANK, dimsf, dataspace2, error)
-
- !
- ! Create the datasets with default properties.
- !
- CALL h5dcreate_f(file1_id, dsetname1, H5T_NATIVE_INTEGER, dataspace1, &
- dset1_id, error)
-
- CALL h5dcreate_f(file2_id, dsetname2, H5T_NATIVE_INTEGER, dataspace2, &
- dset2_id, error)
-
- !
- ! Write the datasets.
- !
- CALL h5dwrite_f(dset1_id, H5T_NATIVE_INTEGER, buf1, error)
-
- CALL h5dwrite_f(dset2_id, H5T_NATIVE_INTEGER, buf2, error)
-
- !
- ! Close the dataspace for the datasets.
- !
- CALL h5sclose_f(dataspace1, error)
-
- CALL h5sclose_f(dataspace2, error)
-
- !
- ! Close the datasets.
- !
- CALL h5dclose_f(dset1_id, error)
-
- CALL h5dclose_f(dset2_id, error)
-
- !
- ! Close the files.
- !
- CALL h5fclose_f(file1_id, error)
-
- CALL h5fclose_f(file2_id, error)
-
- !
- ! Open the two files. Select two points in one file, write values to
- ! those point locations, then do H5Scopy and write the values to the
- ! other file. Close files.
- !
-
- !
- ! Open the files.
- !
- CALL h5fopen_f (filename1, H5F_ACC_RDWR_F, file1_id, error)
-
- CALL h5fopen_f (filename2, H5F_ACC_RDWR_F, file2_id, error)
-
- !
- ! Open the datasets.
- !
- CALL h5dopen_f(file1_id, dsetname1, dset1_id, error)
-
- CALL h5dopen_f(file2_id, dsetname2, dset2_id, error)
-
- !
- ! Get dataset1's dataspace identifier.
- !
- CALL h5dget_space_f(dset1_id, dataspace1, error)
-
- !
- ! Create memory dataspace.
- !
- CALL h5screate_simple_f(memrank, dimsm, memspace, error)
-
- !
- ! Set the selected point positions. Because Fortran array index starts
- ! from 1, so add one to the actual select points in C.
- !
- coord(1,1) = 1
- coord(2,1) = 2
- coord(1,2) = 1
- coord(2,2) = 4
-
- !
- ! Select the elements in file space.
- !
- CALL h5sselect_elements_f(dataspace1, H5S_SELECT_SET_F, RANK, NUMP,&
- coord, error)
-
- !
- ! Write value into the selected points in dataset1.
- !
- CALL H5dwrite_f(dset1_id, H5T_NATIVE_INTEGER, val, error, &
- mem_space_id=memspace, file_space_id=dataspace1)
-
- !
- ! Copy the daspace1 into dataspace2.
- !
- CALL h5scopy_f(dataspace1, dataspace2, error)
-
- !
- ! Write value into the selected points in dataset2.
- !
- CALL H5dwrite_f(dset2_id, H5T_NATIVE_INTEGER, val, error, &
- mem_space_id=memspace, file_space_id=dataspace2)
-
- !
- ! Close the dataspace for the datasets.
- !
- CALL h5sclose_f(dataspace1, error)
-
- CALL h5sclose_f(dataspace2, error)
-
- !
- ! Close the memoryspace.
- !
- CALL h5sclose_f(memspace, error)
-
- !
- ! Close the datasets.
- !
- CALL h5dclose_f(dset1_id, error)
-
- CALL h5dclose_f(dset2_id, error)
-
- !
- ! Close the files.
- !
- CALL h5fclose_f(file1_id, error)
-
- CALL h5fclose_f(file2_id, error)
-
- !
- ! Open both files and print the contents of the datasets.
- !
-
- !
- ! Open the files.
- !
- CALL h5fopen_f (filename1, H5F_ACC_RDWR_F, file1_id, error)
-
- CALL h5fopen_f (filename2, H5F_ACC_RDWR_F, file2_id, error)
-
- !
- ! Open the datasets.
- !
- CALL h5dopen_f(file1_id, dsetname1, dset1_id, error)
-
- CALL h5dopen_f(file2_id, dsetname2, dset2_id, error)
-
- !
- ! Read dataset from the first file.
- !
- CALL h5dread_f(dset1_id, H5T_NATIVE_INTEGER, bufnew, error)
-
- !
- ! Display the data read from dataset "Copy1"
- !
- write(*,*) "The data in dataset Copy1 is: "
- do i = 1, 3
- print *, (bufnew(i,j), j = 1,4)
- end do
-
- !
- ! Read dataset from the second file.
- !
- CALL h5dread_f(dset2_id, H5T_NATIVE_INTEGER, bufnew, error)
-
- !
- ! Display the data read from dataset "Copy2"
- !
- write(*,*) "The data in dataset Copy2 is: "
- do i = 1, 3
- print *, (bufnew(i,j), j = 1,4)
- end do
-
- !
- ! Close datasets.
- !
- CALL h5dclose_f(dset1_id, error)
-
- CALL h5dclose_f(dset2_id, error)
-
- !
- ! Close files.
- !
- CALL h5fclose_f(file1_id, error)
-
- CALL h5fclose_f(file2_id, error)
-
- !
- ! Close FORTRAN predefined datatypes.
- !
- CALL h5close_f(error)
-
- END PROGRAM SELECTEXAMPLE
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