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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 examples creates a file and writes a two dimensional real dataset
to it.
It then reopens the file, and copies a region described by blocks
to another region described by another block.
Main illustrative function: H5LTcopy_region
*/
#include "hdf5.h"
#include "hdf5_hl.h"
#define filename "File.h5"
#define DSETNAME "DS" /* dataset name */
#define DIM0 6 /* dataset dimensions */
#define DIM1 7
#define rank 2 /* dataset rank */
int main(void)
{
hid_t file_id; /* file identifier */
hsize_t dims[rank] = {DIM0, DIM1}; /* dataset dimension */
herr_t status;
int data[DIM0][DIM1]; /* data */
int i, j;
hsize_t block_coord_src[4] ={ 0, 0, 1, 2}; /* hyperslab coordinates to copy from */
hsize_t block_coord_dest[4] ={2, 3, 3, 5 }; /* destinations block coordinates to copy data to */
int rdata[DIM0][DIM1]; /* read data buffer */
/*********************************************************
This writes data to the HDF5 file.
*********************************************************/
/*
* Data and output buffer initialization.
*/
printf("FULL 2D ARRAY:");
for (i=0; i<DIM0; i++) {
printf("\n[ ");
for (j=0; j<DIM1; j++) {
data[i][j] = 10*i+j;
printf("%02d ", data[i][j]);
}
printf("]");
}
printf("\n");
/*
* Create file with default file access and file creation properties.
*/
file_id = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
/*
* Create and write the dataset.
*/
status = H5LTmake_dataset ( file_id, DSETNAME, 2, dims, H5T_NATIVE_INT, data);
/*
* Close/release resources.
*/
status = H5Fclose(file_id);
/*************************************************************
This copies a region described by blocks to another region
described by another block
************************************************************/
status = H5LTcopy_region(filename,
"/DS",
block_coord_src,
filename,
"/DS",
block_coord_dest);
/* Read and print the destination region */
file_id = H5Fopen(filename, H5F_ACC_RDWR, H5P_DEFAULT);
status = H5LTread_dataset(file_id,"/DS",H5T_NATIVE_INT,rdata);
status = H5Fclose(file_id);
printf("2D DATA AFTER H5LTCOPY_REGION: [(%d,%d)-(%d,%d)] --> [(%d,%d)-(%d,%d)]",
(int)block_coord_src[0],(int)block_coord_src[1], (int)block_coord_src[2],(int)block_coord_src[3],
(int)block_coord_dest[0], (int)block_coord_dest[1],(int)block_coord_dest[2], (int)block_coord_dest[3]);
for (i=0; i< DIM0; i++)
{
printf("\n [ ");
for (j=0; j< DIM1; j++) {
printf("%02d ", rdata[i][j]);
}
printf("]");
}
printf("\n");
return 0;
}
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