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Diffstat (limited to 'doc/html/Tutor/examples/h5_hyperslab.c')
| -rw-r--r-- | doc/html/Tutor/examples/h5_hyperslab.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/doc/html/Tutor/examples/h5_hyperslab.c b/doc/html/Tutor/examples/h5_hyperslab.c deleted file mode 100644 index 120e30d..0000000 --- a/doc/html/Tutor/examples/h5_hyperslab.c +++ /dev/null @@ -1,192 +0,0 @@ -/************************************************************ - - This example shows how to write and read a hyperslab. It - is derived from the h5_read.c and h5_write.c examples in - the "Introduction to HDF5". - - ************************************************************/ - -#include "hdf5.h" - -#define FILE "sds.h5" -#define DATASETNAME "IntArray" -#define NX_SUB 3 /* hyperslab dimensions */ -#define NY_SUB 4 -#define NX 7 /* output buffer dimensions */ -#define NY 7 -#define NZ 3 -#define RANK 2 -#define RANK_OUT 3 - -#define X 5 /* dataset dimensions */ -#define Y 6 - -int -main (void) -{ - hsize_t dimsf[2]; /* dataset dimensions */ - int data[X][Y]; /* data to write */ - - /* - * Data and output buffer initialization. - */ - hid_t file, dataset; /* handles */ - hid_t dataspace; - hid_t memspace; - hsize_t dimsm[3]; /* memory space dimensions */ - hsize_t dims_out[2]; /* dataset dimensions */ - herr_t status; - - int data_out[NX][NY][NZ ]; /* output buffer */ - - hsize_t count[2]; /* size of the hyperslab in the file */ - hsize_t offset[2]; /* hyperslab offset in the file */ - hsize_t count_out[3]; /* size of the hyperslab in memory */ - hsize_t offset_out[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 (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, 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 (RANK, dimsf, NULL); - - /* - * Create a new dataset within the file using defined dataspace and - * default dataset creation properties. - */ - dataset = H5Dcreate (file, DATASETNAME, H5T_STD_I32BE, dataspace, - H5P_DEFAULT); - - /* - * Write the data to the dataset using default transfer properties. - */ - status = H5Dwrite (dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, - H5P_DEFAULT, data); - - /* - * Close/release resources. - */ - H5Sclose (dataspace); - H5Dclose (dataset); - H5Fclose (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 (FILE, H5F_ACC_RDONLY, H5P_DEFAULT); - dataset = H5Dopen (file, DATASETNAME); - - dataspace = H5Dget_space (dataset); /* dataspace handle */ - rank = H5Sget_simple_extent_ndims (dataspace); - status_n = H5Sget_simple_extent_dims (dataspace, dims_out, NULL); - printf("\nRank: %d\nDimensions: %lu x %lu \n", rank, - (unsigned long)(dims_out[0]), (unsigned long)(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 (dataspace, H5S_SELECT_SET, offset, NULL, - count, NULL); - - /* - * Define the memory dataspace. - */ - dimsm[0] = NX; - dimsm[1] = NY; - dimsm[2] = NZ; - memspace = H5Screate_simple (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 (memspace, 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 (dataset, H5T_NATIVE_INT, memspace, dataspace, - H5P_DEFAULT, data_out); - printf ("Data:\n "); - for (j = 0; j < NX; j++) { - for (i = 0; i < NY; i++) printf("%d ", data_out[j][i][0]); - printf("\n "); - } - printf("\n"); - /* - * 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 (dataset); - H5Sclose (dataspace); - H5Sclose (memspace); - H5Fclose (file); - -} |