From a323e8da85eb6651fbdb81a48b292d4c6c6d1f10 Mon Sep 17 00:00:00 2001 From: Barbara Jones Date: Thu, 8 Mar 2001 11:26:32 -0500 Subject: [svn-r3556] added attrexample.f90 to tutorial Purpose: [is this a bug fix? feature? ...] Description: [describe the bug, or describe the new feature, etc] Solution: [details about the changes, algorithm, etc...] [Please as detail as you can since your own explanation is better than others guessing it from the code.] Platforms tested: [machines you have tested the changed version. This is absolute important. Test it out on at least two or three different platforms such as Big-endian-32bit (SUN/IRIX), little-endian-32(LINUX) and 64-bit (IRIX64/UNICOS/DEC-ALPHA) would be good.] --- doc/html/Tutor/examples/attrexample.f90 | 87 +++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 doc/html/Tutor/examples/attrexample.f90 diff --git a/doc/html/Tutor/examples/attrexample.f90 b/doc/html/Tutor/examples/attrexample.f90 new file mode 100644 index 0000000..9198eb8 --- /dev/null +++ b/doc/html/Tutor/examples/attrexample.f90 @@ -0,0 +1,87 @@ +! 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 + -- cgit v0.12