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93 lines
3.3 KiB
93 lines
3.3 KiB
2 years ago
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://www.hdfgroup.org/licenses. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/************************************************************
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Creating and closing a dataset.
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************************************************************/
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package examples.intro;
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import hdf.hdf5lib.H5;
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import hdf.hdf5lib.HDF5Constants;
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public class H5_CreateDataset {
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private static String FILENAME = "H5_CreateDataset.h5";
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private static String DATASETNAME = "dset";
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private static final int DIM_X = 4;
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private static final int DIM_Y = 6;
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private static void CreateDataset()
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{
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long file_id = HDF5Constants.H5I_INVALID_HID;
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long dataspace_id = HDF5Constants.H5I_INVALID_HID;
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long dataset_id = HDF5Constants.H5I_INVALID_HID;
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long[] dims = {DIM_X, DIM_Y};
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// Create a new file using default properties.
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try {
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file_id = H5.H5Fcreate(FILENAME, HDF5Constants.H5F_ACC_TRUNC, HDF5Constants.H5P_DEFAULT,
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HDF5Constants.H5P_DEFAULT);
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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// Create the data space for the dataset.
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try {
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dataspace_id = H5.H5Screate_simple(2, dims, null);
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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// Create the dataset.
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try {
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if ((file_id >= 0) && (dataspace_id >= 0))
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dataset_id = H5.H5Dcreate(file_id, "/" + DATASETNAME, HDF5Constants.H5T_STD_I32BE,
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dataspace_id, HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT,
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HDF5Constants.H5P_DEFAULT);
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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// End access to the dataset and release resources used by it.
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try {
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if (dataset_id >= 0)
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H5.H5Dclose(dataset_id);
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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// Terminate access to the data space.
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try {
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if (dataspace_id >= 0)
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H5.H5Sclose(dataspace_id);
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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// Close the file.
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try {
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if (file_id >= 0)
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H5.H5Fclose(file_id);
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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}
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public static void main(String[] args) { H5_CreateDataset.CreateDataset(); }
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}
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