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authorScot Breitenfeld <brtnfld@hdfgroup.org>2012-12-10 22:30:38 (GMT)
committerScot Breitenfeld <brtnfld@hdfgroup.org>2012-12-10 22:30:38 (GMT)
commit17fd0e9ce4e56ad786ccf04907fcddabddab936a (patch)
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[svn-r23088] Changed Fortran examples to reflect changes in documentation via Barbara;
mainly program name changes. Two new examples added: h5_extend.f90 h5_subset.f90 and example fileexample.f90 was removed. Tested: jam (gnu compilers)
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+! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+! Copyright by The HDF Group. *
+! Copyright by the Board of Trustees of the University of Illinois. *
+! All rights reserved. *
+! *
+! This file is part of HDF5. The full HDF5 copyright notice, including *
+! terms governing use, modification, and redistribution, is contained in *
+! the files COPYING and Copyright.html. COPYING can be found at the root *
+! of the source code distribution tree; Copyright.html can be found at the *
+! root level of an installed copy of the electronic HDF5 document set and *
+! is linked from the top-level documents page. It can also be found at *
+! http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
+! access to either file, you may request a copy from help@hdfgroup.org. *
+! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+!
+! 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.
+!
+! This example is used in the HDF5 Tutorial.
+
+PROGRAM H5_CRTATT
+
+ 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=9), PARAMETER :: aname = "attr_long" ! 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(HID_T) :: atype_id ! Attribute Dataspace identifier
+ INTEGER(HSIZE_T), DIMENSION(1) :: adims = (/2/) ! Attribute dimension
+ INTEGER :: arank = 1 ! Attribure rank
+ INTEGER(SIZE_T) :: attrlen ! Length of the attribute string
+
+ CHARACTER(LEN=80), DIMENSION(2) :: attr_data ! Attribute data
+
+ INTEGER :: error ! Error flag
+ INTEGER(HSIZE_T), DIMENSION(1) :: data_dims
+
+ !
+ ! Initialize attribute's data
+ !
+ attr_data(1) = "Dataset character attribute"
+ attr_data(2) = "Some other string here "
+ attrlen = 80
+ !
+ ! Initialize FORTRAN interface.
+ !
+ 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 scalar data space for the attribute.
+ !
+ CALL h5screate_simple_f(arank, adims, aspace_id, error)
+ !
+ ! Create datatype for the attribute.
+ !
+ CALL h5tcopy_f(H5T_NATIVE_CHARACTER, atype_id, error)
+ CALL h5tset_size_f(atype_id, attrlen, error)
+ !
+ ! Create dataset attribute.
+ !
+ CALL h5acreate_f(dset_id, aname, atype_id, aspace_id, attr_id, error)
+ !
+ ! Write the attribute data.
+ !
+ data_dims(1) = 2
+ CALL h5awrite_f(attr_id, atype_id, attr_data, data_dims, 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 interface.
+ !
+ CALL h5close_f(error)
+
+END PROGRAM H5_CRTATT
+