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Diffstat (limited to 'doc/html/Tutor/examples/h5_copy.c')
| -rw-r--r-- | doc/html/Tutor/examples/h5_copy.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/doc/html/Tutor/examples/h5_copy.c b/doc/html/Tutor/examples/h5_copy.c new file mode 100644 index 0000000..b0a5e00 --- /dev/null +++ b/doc/html/Tutor/examples/h5_copy.c @@ -0,0 +1,148 @@ +/***********************************************************************/ +/* */ +/* PROGRAM: h5_copy.c */ +/* PURPOSE: Shows how to use the H5SCOPY function. */ +/* DESCRIPTION: */ +/* This program creates two files, copy1.h5, and copy2.h5. */ +/* In copy1.h5, it creates a 3x4 dataset called 'Copy1', */ +/* and write 0's to this dataset. */ +/* In copy2.h5, it create a 3x4 dataset called 'Copy2', */ +/* and write 1's to this dataset. */ +/* It closes both files, reopens both files, selects two */ +/* points in copy1.h5 and writes values to them. Then it */ +/* does an H5Scopy from the first file to the second, and */ +/* writes the values to copy2.h5. It then closes the */ +/* files, reopens them, and prints the contents of the */ +/* two datasets. */ +/* */ +/***********************************************************************/ + +#include "hdf5.h" +#define FILE1 "copy1.h5" +#define FILE2 "copy2.h5" + +#define RANK 2 +#define DIM1 3 +#define DIM2 4 +#define NUMP 2 + +int main (void) +{ + hid_t file1, file2, dataset1, dataset2; + hid_t mid1, mid2, fid1, fid2; + hsize_t fdim[] = {DIM1, DIM2}; + hsize_t mdim[] = {DIM1, DIM2}; + hsize_t start[2], stride[2], count[2], block[2]; + int buf1[DIM1][DIM2]; + int buf2[DIM1][DIM2]; + int bufnew[DIM1][DIM2]; + int val[] = {53, 59}; + hsize_t marray[] = {2}; + hssize_t coord[NUMP][RANK]; + herr_t ret; + uint i, j; + +/***********************************************************************/ +/* */ +/* Create two files containing identical datasets. Write 0's to one */ +/* and 1's to the other. */ +/* */ +/***********************************************************************/ + + for ( i = 0; i < DIM1; i++ ) + for ( j = 0; j < DIM2; j++ ) + buf1[i][j] = 0; + + for ( i = 0; i < DIM1; i++ ) + for ( j = 0; j < DIM2; j++ ) + buf2[i][j] = 1; + + file1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + file2 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + + fid1 = H5Screate_simple (RANK, fdim, NULL); + fid2 = H5Screate_simple (RANK, fdim, NULL); + + dataset1 = H5Dcreate (file1, "Copy1", H5T_NATIVE_INT, fid1, H5P_DEFAULT); + dataset2 = H5Dcreate (file2, "Copy2", H5T_NATIVE_INT, fid2, H5P_DEFAULT); + + ret = H5Dwrite(dataset1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf1); + ret = H5Dwrite(dataset2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2); + + ret = H5Dclose (dataset1); + ret = H5Dclose (dataset2); + + ret = H5Sclose (fid1); + ret = H5Sclose (fid2); + + ret = H5Fclose (file1); + ret = H5Fclose (file2); + +/***********************************************************************/ +/* */ +/* Open the two files. Select two points in one file, write values to */ +/* those point locations, then do H5Scopy and write the values to the */ +/* other file. Close files. */ +/* */ +/***********************************************************************/ + + file1 = H5Fopen (FILE1, H5F_ACC_RDWR, H5P_DEFAULT); + file2 = H5Fopen (FILE2, H5F_ACC_RDWR, H5P_DEFAULT); + dataset1 = H5Dopen (file1, "Copy1"); + dataset2 = H5Dopen (file2, "Copy2"); + fid1 = H5Dget_space (dataset1); + mid1 = H5Screate_simple(1, marray, NULL); + coord[0][0] = 0; coord[0][1] = 3; + coord[1][0] = 0; coord[1][1] = 1; + + ret = H5Sselect_elements (fid1, H5S_SELECT_SET, NUMP, (const hssize_t **)coord); + + ret = H5Dwrite (dataset1, H5T_NATIVE_INT, mid1, fid1, H5P_DEFAULT, val); + + fid2 = H5Scopy (fid1); + + ret = H5Dwrite (dataset2, H5T_NATIVE_INT, mid1, fid2, H5P_DEFAULT, val); + + ret = H5Dclose (dataset1); + ret = H5Dclose (dataset2); + ret = H5Sclose (fid1); + ret = H5Sclose (fid2); + ret = H5Fclose (file1); + ret = H5Fclose (file2); + ret = H5Sclose (mid1); + +/***********************************************************************/ +/* */ +/* Open both files and print the contents of the datasets. */ +/* */ +/***********************************************************************/ + + file1 = H5Fopen (FILE1, H5F_ACC_RDWR, H5P_DEFAULT); + file2 = H5Fopen (FILE2, H5F_ACC_RDWR, H5P_DEFAULT); + dataset1 = H5Dopen (file1, "Copy1"); + dataset2 = H5Dopen (file2, "Copy2"); + + ret = H5Dread (dataset1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, + H5P_DEFAULT, bufnew); + + printf ("\nDataset 'Copy1' in file 'copy1.h5' contains: \n"); + for (i=0;i<DIM1; i++) { + for (j=0;j<DIM2;j++) printf ("%3d ", bufnew[i][j]); + printf("\n"); + } + + printf ("\nDataset 'Copy2' in file 'copy2.h5' contains: \n"); + + ret = H5Dread (dataset2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, + H5P_DEFAULT, bufnew); + + for (i=0;i<DIM1; i++) { + for (j=0;j<DIM2;j++) printf ("%3d ", bufnew[i][j]); + printf("\n"); + } + ret = H5Dclose (dataset1); + ret = H5Dclose (dataset2); + ret = H5Fclose (file1); + ret = H5Fclose (file2); + +} |