mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-12-27 08:01:04 +08:00
92 lines
3.3 KiB
C
92 lines
3.3 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
* 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 illustrates how to create a dataset in a group.
|
|
* It is used in the HDF5 Tutorial.
|
|
*/
|
|
|
|
#include "hdf5.h"
|
|
#define FILE "groups.h5"
|
|
|
|
int main() {
|
|
|
|
hid_t file_id, group_id, dataset_id, dataspace_id; /* identifiers */
|
|
hsize_t dims[2];
|
|
herr_t status;
|
|
int i, j, dset1_data[3][3], dset2_data[2][10];
|
|
|
|
/* Initialize the first dataset. */
|
|
for (i = 0; i < 3; i++)
|
|
for (j = 0; j < 3; j++)
|
|
dset1_data[i][j] = j + 1;
|
|
|
|
/* Initialize the second dataset. */
|
|
for (i = 0; i < 2; i++)
|
|
for (j = 0; j < 10; j++)
|
|
dset2_data[i][j] = j + 1;
|
|
|
|
/* Open an existing file. */
|
|
file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
|
|
|
|
/* Create the data space for the first dataset. */
|
|
dims[0] = 3;
|
|
dims[1] = 3;
|
|
dataspace_id = H5Screate_simple(2, dims, NULL);
|
|
|
|
/* Create a dataset in group "MyGroup". */
|
|
dataset_id = H5Dcreate2(file_id, "/MyGroup/dset1", H5T_STD_I32BE, dataspace_id,
|
|
H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
|
|
|
|
/* Write the first dataset. */
|
|
status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
|
|
dset1_data);
|
|
|
|
/* Close the data space for the first dataset. */
|
|
status = H5Sclose(dataspace_id);
|
|
|
|
/* Close the first dataset. */
|
|
status = H5Dclose(dataset_id);
|
|
|
|
/* Open an existing group of the specified file. */
|
|
group_id = H5Gopen2(file_id, "/MyGroup/Group_A", H5P_DEFAULT);
|
|
|
|
/* Create the data space for the second dataset. */
|
|
dims[0] = 2;
|
|
dims[1] = 10;
|
|
dataspace_id = H5Screate_simple(2, dims, NULL);
|
|
|
|
/* Create the second dataset in group "Group_A". */
|
|
dataset_id = H5Dcreate2(group_id, "dset2", H5T_STD_I32BE, dataspace_id,
|
|
H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
|
|
|
|
/* Write the second dataset. */
|
|
status = H5Dwrite(dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT,
|
|
dset2_data);
|
|
|
|
/* Close the data space for the second dataset. */
|
|
status = H5Sclose(dataspace_id);
|
|
|
|
/* Close the second dataset */
|
|
status = H5Dclose(dataset_id);
|
|
|
|
/* Close the group. */
|
|
status = H5Gclose(group_id);
|
|
|
|
/* Close the file. */
|
|
status = H5Fclose(file_id);
|
|
}
|
|
|