diff options
author | Allen Byrne <50328838+byrnHDF@users.noreply.github.com> | 2023-12-14 18:50:30 (GMT) |
---|---|---|
committer | GitHub <noreply@github.com> | 2023-12-14 18:50:30 (GMT) |
commit | 6f2d22d86e6a265535efe22a8bb3872b3b32a52b (patch) | |
tree | f79e0d9778b13466282c159dfec67d31faba5b8d /java/examples/datasets/H5Ex_D_Hyperslab.java | |
parent | 184445f4a45c602887ca0624c5295a7b6fea2d21 (diff) | |
download | hdf5-6f2d22d86e6a265535efe22a8bb3872b3b32a52b.zip hdf5-6f2d22d86e6a265535efe22a8bb3872b3b32a52b.tar.gz hdf5-6f2d22d86e6a265535efe22a8bb3872b3b32a52b.tar.bz2 |
Add variable option syncing for examples (#3885)
Diffstat (limited to 'java/examples/datasets/H5Ex_D_Hyperslab.java')
-rw-r--r-- | java/examples/datasets/H5Ex_D_Hyperslab.java | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/java/examples/datasets/H5Ex_D_Hyperslab.java b/java/examples/datasets/H5Ex_D_Hyperslab.java deleted file mode 100644 index 0575d50..0000000 --- a/java/examples/datasets/H5Ex_D_Hyperslab.java +++ /dev/null @@ -1,272 +0,0 @@ -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * - * 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. * - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ - -/************************************************************ - This example shows how to read and write data to a - dataset by hyberslabs. The program first writes integers - in a hyperslab selection to a dataset with dataspace - dimensions of DIM_XxDIM_Y, then closes the file. Next, it - reopens the file, reads back the data, and outputs it to - the screen. Finally it reads the data again using a - different hyperslab selection, and outputs the result to - the screen. - ************************************************************/ -package examples.datasets; - -import hdf.hdf5lib.H5; -import hdf.hdf5lib.HDF5Constants; - -public class H5Ex_D_Hyperslab { - private static String FILENAME = "H5Ex_D_Hyperslab.h5"; - private static String DATASETNAME = "DS1"; - private static final int DIM_X = 6; - private static final int DIM_Y = 8; - private static final int RANK = 2; - - private static void writeHyperslab() - { - long file_id = HDF5Constants.H5I_INVALID_HID; - long filespace_id = HDF5Constants.H5I_INVALID_HID; - long dataset_id = HDF5Constants.H5I_INVALID_HID; - long[] dims = {DIM_X, DIM_Y}; - int[][] dset_data = new int[DIM_X][DIM_Y]; - - // Initialize data to "1", to make it easier to see the selections. - for (int indx = 0; indx < DIM_X; indx++) - for (int jndx = 0; jndx < DIM_Y; jndx++) - dset_data[indx][jndx] = 1; - - // Print the data to the screen. - System.out.println("Original Data:"); - for (int indx = 0; indx < DIM_X; indx++) { - System.out.print(" [ "); - for (int jndx = 0; jndx < DIM_Y; jndx++) - System.out.print(dset_data[indx][jndx] + " "); - System.out.println("]"); - } - System.out.println(); - - // Create a new file using default properties. - try { - file_id = H5.H5Fcreate(FILENAME, HDF5Constants.H5F_ACC_TRUNC, HDF5Constants.H5P_DEFAULT, - HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create dataspace. Setting maximum size to NULL sets the maximum - // size to be the current size. - try { - filespace_id = H5.H5Screate_simple(RANK, dims, null); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create the dataset. We will use all default properties for this example. - try { - if ((file_id >= 0) && (filespace_id >= 0)) - dataset_id = H5.H5Dcreate(file_id, DATASETNAME, HDF5Constants.H5T_STD_I32LE, filespace_id, - HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT, - HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Define and select the first part of the hyperslab selection. - long[] start = {0, 0}; - long[] stride = {3, 3}; - long[] count = {2, 3}; - long[] block = {2, 2}; - try { - if ((filespace_id >= 0)) - H5.H5Sselect_hyperslab(filespace_id, HDF5Constants.H5S_SELECT_SET, start, stride, count, - block); - } - catch (Exception e) { - e.printStackTrace(); - } - // Define and select the second part of the hyperslab selection, - // which is subtracted from the first selection by the use of - // H5S_SELECT_NOTB - block[0] = 1; - block[1] = 1; - try { - if ((filespace_id >= 0)) { - H5.H5Sselect_hyperslab(filespace_id, HDF5Constants.H5S_SELECT_NOTB, start, stride, count, - block); - - // Write the data to the dataset. - if (dataset_id >= 0) - H5.H5Dwrite(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, filespace_id, - HDF5Constants.H5P_DEFAULT, dset_data); - } - } - catch (Exception e) { - e.printStackTrace(); - } - - // End access to the dataset and release resources used by it. - try { - if (dataset_id >= 0) - H5.H5Dclose(dataset_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - try { - if (filespace_id >= 0) - H5.H5Sclose(filespace_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Close the file. - try { - if (file_id >= 0) - H5.H5Fclose(file_id); - } - catch (Exception e) { - e.printStackTrace(); - } - } - - private static void readHyperslab() - { - long file_id = HDF5Constants.H5I_INVALID_HID; - long filespace_id = HDF5Constants.H5I_INVALID_HID; - long dataset_id = HDF5Constants.H5I_INVALID_HID; - long dcpl_id = HDF5Constants.H5I_INVALID_HID; - int[][] dset_data = new int[DIM_X][DIM_Y]; - - // Open an existing file. - try { - file_id = H5.H5Fopen(FILENAME, HDF5Constants.H5F_ACC_RDONLY, HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Open an existing dataset. - try { - if (file_id >= 0) - dataset_id = H5.H5Dopen(file_id, DATASETNAME, HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Read the data using the default properties. - try { - if (dataset_id >= 0) - H5.H5Dread(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, - HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Output the data to the screen. - System.out.println("Data as written to disk by hyberslabs:"); - for (int indx = 0; indx < DIM_X; indx++) { - System.out.print(" [ "); - for (int jndx = 0; jndx < DIM_Y; jndx++) - System.out.print(dset_data[indx][jndx] + " "); - System.out.println("]"); - } - System.out.println(); - - // Initialize the read array. - for (int indx = 0; indx < DIM_X; indx++) - for (int jndx = 0; jndx < DIM_Y; jndx++) - dset_data[indx][jndx] = 0; - - // Define and select the hyperslab to use for reading. - try { - if (dataset_id >= 0) { - filespace_id = H5.H5Dget_space(dataset_id); - - long[] start = {0, 1}; - long[] stride = {4, 4}; - long[] count = {2, 2}; - long[] block = {2, 3}; - - if (filespace_id >= 0) { - H5.H5Sselect_hyperslab(filespace_id, HDF5Constants.H5S_SELECT_SET, start, stride, count, - block); - - // Read the data using the previously defined hyperslab. - if ((dataset_id >= 0) && (filespace_id >= 0)) - H5.H5Dread(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, - filespace_id, HDF5Constants.H5P_DEFAULT, dset_data); - } - } - } - catch (Exception e) { - e.printStackTrace(); - } - - // Output the data to the screen. - System.out.println("Data as read from disk by hyberslab:"); - for (int indx = 0; indx < DIM_X; indx++) { - System.out.print(" [ "); - for (int jndx = 0; jndx < DIM_Y; jndx++) - System.out.print(dset_data[indx][jndx] + " "); - System.out.println("]"); - } - System.out.println(); - - // End access to the dataset and release resources used by it. - try { - if (dcpl_id >= 0) - H5.H5Pclose(dcpl_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - try { - if (dataset_id >= 0) - H5.H5Dclose(dataset_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - try { - if (filespace_id >= 0) - H5.H5Sclose(filespace_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Close the file. - try { - if (file_id >= 0) - H5.H5Fclose(file_id); - } - catch (Exception e) { - e.printStackTrace(); - } - } - - public static void main(String[] args) - { - H5Ex_D_Hyperslab.writeHyperslab(); - H5Ex_D_Hyperslab.readHyperslab(); - } -} |