/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * 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 COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include "hdf5.h"
#include "hdf5_hl.h"

#define RANK      2
#define DIM_DATA  12
#define DIM1_SIZE 3
#define DIM2_SIZE 4
#define DIM0      0
#define DIM1      1

#define DSET_NAME "Mydata"
#define DS_1_NAME "Yaxis"
#define DS_2_NAME "Xaxis"

int
main(void)
{

    hid_t   fid;                                                          /* file ID */
    hid_t   did;                                                          /* dataset ID */
    hid_t   dsid;                                                         /* DS dataset ID */
    int     rank               = RANK;                                    /* rank of data dataset */
    int     rankds             = 1;                                       /* rank of DS dataset */
    hsize_t dims[RANK]         = {DIM1_SIZE, DIM2_SIZE};                  /* size of data dataset */
    int     buf[DIM_DATA]      = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}; /* data of data dataset */
    hsize_t s1_dim[1]          = {DIM1_SIZE};                             /* size of DS 1 dataset */
    hsize_t s2_dim[1]          = {DIM2_SIZE};                             /* size of DS 2 dataset */
    float   s1_wbuf[DIM1_SIZE] = {10, 20, 30};                            /* data of DS 1 dataset */
    int     s2_wbuf[DIM2_SIZE] = {10, 20, 50, 100};                       /* data of DS 2 dataset */

    /* create a file using default properties */
    if ((fid = H5Fcreate("ex_ds1.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        goto out;

    /* make a dataset */
    if (H5LTmake_dataset_int(fid, DSET_NAME, rank, dims, buf) < 0)
        goto out;

    /* make a DS dataset for the first dimension */
    if (H5LTmake_dataset_float(fid, DS_1_NAME, rankds, s1_dim, s1_wbuf) < 0)
        goto out;

    /* make a DS dataset for the second dimension */
    if (H5LTmake_dataset_int(fid, DS_2_NAME, rankds, s2_dim, s2_wbuf) < 0)
        goto out;

    /*-------------------------------------------------------------------------
     * attach the DS_1_NAME dimension scale to DSET_NAME at dimension 0
     *-------------------------------------------------------------------------
     */

    /* get the dataset id for DSET_NAME */
    if ((did = H5Dopen2(fid, DSET_NAME, H5P_DEFAULT)) < 0)
        goto out;

    /* get the DS dataset id */
    if ((dsid = H5Dopen2(fid, DS_1_NAME, H5P_DEFAULT)) < 0)
        goto out;

    /* attach the DS_1_NAME dimension scale to DSET_NAME at dimension index 0 */
    if (H5DSattach_scale(did, dsid, DIM0) < 0)
        goto out;

    /* close DS id */
    if (H5Dclose(dsid) < 0)
        goto out;

    /*-------------------------------------------------------------------------
     * attach the DS_2_NAME dimension scale to DSET_NAME
     *-------------------------------------------------------------------------
     */

    /* get the DS dataset id */
    if ((dsid = H5Dopen2(fid, DS_2_NAME, H5P_DEFAULT)) < 0)
        goto out;

    /* attach the DS_2_NAME dimension scale to DSET_NAME as the 2nd dimension (index 1)  */
    if (H5DSattach_scale(did, dsid, DIM1) < 0)
        goto out;

    /* close DS ids */
    if (H5Dclose(dsid) < 0)
        goto out;
    if (H5Dclose(did) < 0)
        goto out;

    /* close file */
    H5Fclose(fid);

    return 0;

out:
    printf("Error on return function...Exiting\n");
    return 1;
}