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Diffstat (limited to 'doc/html/Tutor/examples/java/HyperSlab.java')
| -rw-r--r-- | doc/html/Tutor/examples/java/HyperSlab.java | 590 |
1 files changed, 0 insertions, 590 deletions
diff --git a/doc/html/Tutor/examples/java/HyperSlab.java b/doc/html/Tutor/examples/java/HyperSlab.java deleted file mode 100644 index 5f8818d..0000000 --- a/doc/html/Tutor/examples/java/HyperSlab.java +++ /dev/null @@ -1,590 +0,0 @@ -/****************************************************************** - * HyperSlab.java (for HDF5 tutorial lesson 12) - * - * -- Writing and reading a hyperslab - * (a java conversion from h5_hyperslab.c) - * - ******************************************************************/ - -import ncsa.hdf.hdf5lib.*; -import ncsa.hdf.hdf5lib.exceptions.*; - -public class HyperSlab -{ - public static void main (String []argv) - { - final String FILE = "sds.h5"; - final String DATASETNAME = "IntArray"; - final int NX_SUB = 3; /* hyperslab dimensions */ - final int NY_SUB = 4; - final int NX = 7; /* output buffer dimensions */ - final int NY = 7; - final int NZ = 3; - final int RANK = 2; - final int RANK_OUT = 3; - final int X = 5; /* dataset dimensions */ - final int Y = 6; - - long[] dimsf = new long[2]; /* dataset dimensions */ - int[][] data = new int[X][Y]; /* data to write */ - - /* - * Data and output buffer initialization. - */ - int file, dataset; /* handles */ - int dataspace; - int memspace; - long[] dimsm = new long[3]; /* memory space dimensions */ - long[] dims_out = new long[2]; /* dataset dimensions */ - int status; - - int[][][] data_out = new int[NX][NY][NZ]; /* output buffer */ - - long[] count = new long[2]; /* size of the hyperslab in the file */ - long[] offset = new long[2]; /* hyperslab offset in the file */ - long[] count_out = new long[3]; /* size of the hyperslab in memory */ - long[] offset_out = new long[3]; /* hyperslab offset in memory */ - int i, j, k, status_n, rank; - - /********************************************************* - This writes data to the HDF5 file. - *********************************************************/ - - /* - * Data and output buffer initialization. - */ - for (j = 0; j < X; j++) - { - for (i = 0; i < Y; i++) - data[j][i] = i + j; - } - /* - * 0 1 2 3 4 5 - * 1 2 3 4 5 6 - * 2 3 4 5 6 7 - * 3 4 5 6 7 8 - * 4 5 6 7 8 9 - */ - - /* - * Create a new file using H5F_ACC_TRUNC access, - * the default file creation properties, and the default file - * access properties. - */ - file = H5Fcreate_wrap (FILE, HDF5Constants.H5F_ACC_TRUNC, - HDF5Constants.H5P_DEFAULT, - HDF5Constants.H5P_DEFAULT); - - /* - * Describe the size of the array and create the data space for fixed - * size dataset. - */ - dimsf[0] = X; - dimsf[1] = Y; - dataspace = H5Screate_simple_wrap (RANK, dimsf, null); - - /* - * Create a new dataset within the file using defined dataspace and - * default dataset creation properties. - */ - dataset = H5Dcreate_wrap - (file, DATASETNAME, H5.J2C (HDF5CDataTypes.JH5T_STD_I32BE), - dataspace, HDF5Constants.H5P_DEFAULT); - - /* - * Write the data to the dataset using default transfer properties. - */ - status = H5Dwrite_wrap - (dataset, H5.J2C (HDF5CDataTypes.JH5T_NATIVE_INT), - HDF5Constants.H5S_ALL, HDF5Constants.H5S_ALL, - HDF5Constants.H5P_DEFAULT, data); - - /* - * Close/release resources. - */ - H5Sclose_wrap (dataspace); - H5Dclose_wrap (dataset); - H5Fclose_wrap (file); - - /************************************************************* - - This reads the hyperslab from the sds.h5 file just - created, into a 2-dimensional plane of the 3-dimensional - array. - - ************************************************************/ - - for (j = 0; j < NX; j++) - { - for (i = 0; i < NY; i++) - { - for (k = 0; k < NZ ; k++) - data_out[j][i][k] = 0; - } - } - - /* - * Open the file and the dataset. - */ - file = H5Fopen_wrap (FILE, HDF5Constants.H5F_ACC_RDONLY, - HDF5Constants.H5P_DEFAULT); - dataset = H5Dopen_wrap (file, DATASETNAME); - - dataspace = H5Dget_space_wrap (dataset); /* dataspace handle */ - rank = H5Sget_simple_extent_ndims_wrap (dataspace); - status_n = H5Sget_simple_extent_dims_wrap (dataspace, dims_out, null); - - System.out.println ("Rank: " + rank); - System.out.println ("Dimensions: "+ dims_out[0] + " x " + dims_out[1]); - - /* - * Define hyperslab in the dataset. - */ - offset[0] = 1; - offset[1] = 2; - count[0] = NX_SUB; - count[1] = NY_SUB; - status = H5Sselect_hyperslab_wrap (dataspace, - HDF5Constants.H5S_SELECT_SET, - offset, null, count, null); - - /* - * Define the memory dataspace. - */ - dimsm[0] = NX; - dimsm[1] = NY; - dimsm[2] = NZ; - memspace = H5Screate_simple_wrap (RANK_OUT, dimsm, null); - - /* - * Define memory hyperslab. - */ - offset_out[0] = 3; - offset_out[1] = 0; - offset_out[2] = 0; - count_out[0] = NX_SUB; - count_out[1] = NY_SUB; - count_out[2] = 1; - status = H5Sselect_hyperslab_wrap (memspace, - HDF5Constants.H5S_SELECT_SET, - offset_out, null, count_out, null); - - /* - * Read data from hyperslab in the file into the hyperslab in - * memory and display. - */ - status = - H5Dread_wrap (dataset, H5.J2C (HDF5CDataTypes.JH5T_NATIVE_INT), - memspace, dataspace, HDF5Constants.H5P_DEFAULT, - data_out); - - System.out.println ("Data:"); - for (j = 0; j < NX; j++) - { - for (i = 0; i < NY; i++) - System.out.print (data_out[j][i][0]); - System.out.println (); - } - System.out.println (); - - /* - * 0 0 0 0 0 0 0 - * 0 0 0 0 0 0 0 - * 0 0 0 0 0 0 0 - * 3 4 5 6 0 0 0 - * 4 5 6 7 0 0 0 - * 5 6 7 8 0 0 0 - * 0 0 0 0 0 0 0 - */ - - /* - * Close and release resources. - */ - H5Dclose_wrap (dataset); - H5Sclose_wrap (dataspace); - H5Sclose_wrap (memspace); - H5Fclose_wrap (file); - } - - - // Help function for creating a new file - public static int H5Fcreate_wrap (String name, int flags, - int create_id, int access_id) - { - int file_id = -1; // file identifier - try - { - // Create a new file using default file properties. - file_id = H5.H5Fcreate (name, flags, create_id, access_id); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Fcreate_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Fcreate_wrap() with other Exception: " - + e.getMessage()); - } - return file_id; - } - - - // Help function for opening an existing file - public static int H5Fopen_wrap (String name, int flags, int access_id) - { - int file_id = -1; // file identifier - try - { - // Create a new file using default file properties. - file_id = H5.H5Fopen (name, flags, access_id); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Fopen_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Fopen_wrap() with other Exception: " - + e.getMessage()); - } - return file_id; - } - - - // Help function for opening an existing dataset - public static int H5Dopen_wrap (int loc_id, String name) - { - int dataset_id = -1; // dataset identifier - - try - { - // Opening an existing dataset - dataset_id = H5.H5Dopen (loc_id, name); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Dopen_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Dopen_wrap() with other Exception: " - + e.getMessage()); - } - return dataset_id; - } - - - // Help function for creating a new simple dataspace and opening it - // for access - public static int H5Screate_simple_wrap (int rank, long dims[], - long maxdims[]) - { - int dataspace_id = -1; // dataspace identifier - - try - { - // Create the data space for the dataset. - dataspace_id = H5.H5Screate_simple (rank, dims, maxdims); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Screate_simple_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Screate_simple_wrap() with other Exception: " - + e.getMessage()); - } - return dataspace_id; - } - - - // Help function for getting an identifier for a copy of - // the dataspace for a dataset - public static int H5Dget_space_wrap (int dataset_id) - { - int dataspace_id = -1; - - try - { - // Returning an identifier for a copy of the dataspace for a dataset - dataspace_id = H5.H5Dget_space (dataset_id); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Dget_space_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Dget_space_wrap() with other Exception: " - + e.getMessage()); - } - return dataspace_id; - } - - - // Help function for determining the dimensionality (or rank) of - // a dataspace - public static int H5Sget_simple_extent_ndims_wrap (int space_id) - { - int rank = -1; - - try - { - // Determine the dimensionality (or rank) of a dataspace. - rank = H5.H5Sget_simple_extent_ndims (space_id); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Sget_simple_extent_ndims_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Sget_simple_extent_ndims_wrap() with other Exception: " - + e.getMessage()); - } - return rank; - } - - - // Help function for returning the size and maximum sizes of each - // dimension of a dataspace through the dims and maxdims parameters. - public static int H5Sget_simple_extent_dims_wrap (int space_id, - long dims[], - long maxdims[]) - { - int dimension_number = -1; - - try - { - dimension_number = H5.H5Sget_simple_extent_dims (space_id, dims, - maxdims); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Sget_simple_extent_dims_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Sget_simple_extent_dims_wrap() with other Exception: " - + e.getMessage()); - } - return dimension_number; - } - - - // Help function for selecting a hyperslab region to add to the - // current selected region for the dataspace specified by space_id. - public static int H5Sselect_hyperslab_wrap (int space_id, int op, - long start[], long stride[], - long count[], long block[]) - { - int status = -1; - - try - { - status = H5.H5Sselect_hyperslab (space_id, op, start, stride, - count, block); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Sselect_hyperslab_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Sselect_hyperslab_wrap() with other Exception: " - + e.getMessage()); - } - return status; - } - - - // Help function for creating a dataset - public static int H5Dcreate_wrap (int loc_id, String name, int type_id, - int space_id, int create_plist_id) - { - int dataset_id = -1; // dataset identifier - - try - { - // Create the dataset - dataset_id = H5.H5Dcreate (loc_id, name, type_id, space_id, - create_plist_id); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Dcreate_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Dcreate_wrap() with other Exception: " - + e.getMessage()); - } - return dataset_id; - } - - - // Help function for writing the dataset - public static int H5Dwrite_wrap (int dataset_id, int mem_type_id, - int mem_space_id, int file_space_id, - int xfer_plist_id, Object buf) - { - int status = -1; - - try - { - // Write the dataset. - status = H5.H5Dwrite (dataset_id, mem_type_id, mem_space_id, - file_space_id, xfer_plist_id, buf); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Dwrite_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Dwrite_wrap() with other exception: " - + e.getMessage()); - } - return status; - } - - - // Help function for reading the dataset - public static int H5Dread_wrap (int dataset_id, int mem_type_id, - int mem_space_id, int file_space_id, - int xfer_plist_id, Object obj) - { - int status = -1; - - try - { - // Read the dataset. - status = H5.H5Dread (dataset_id, mem_type_id, mem_space_id, - file_space_id, xfer_plist_id, obj); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Dread_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Dread_wrap() with other exception: " - + e.getMessage()); - } - return status; - } - - - // Help function for terminating access to the data space. - public static int H5Sclose_wrap (int dataspace_id) - { - int status = -1; - - try - { - // Terminate access to the data space. - status = H5.H5Sclose (dataspace_id); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Sclose_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Sclose_wrap() with other exception: " - + e.getMessage()); - } - return status; - } - - - // Help function for ending access to the dataset and releasing - // resources used by it. - public static int H5Dclose_wrap (int dataset_id) - { - int status = -1; - - try - { - // End access to the dataset and release resources used by it. - status = H5.H5Dclose (dataset_id); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Dclose_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Dclose_wrap() with other exception: " - + e.getMessage()); - } - return status; - } - - - // Help function for terminating access to the file. - public static int H5Fclose_wrap (int file_id) - { - int status = -1; - - try - { - // Terminate access to the file. - status = H5.H5Fclose (file_id); - } - catch (HDF5Exception hdf5e) - { - System.out.println - ("HyperSlab.H5Fclose_wrap() with HDF5Exception: " - + hdf5e.getMessage()); - } - catch (Exception e) - { - System.out.println - ("HyperSlab.H5Fclose_wrap() with other exception: " - + e.getMessage()); - } - return status; - } -} |