diff options
Diffstat (limited to 'examples/h5_subset.c')
| -rw-r--r-- | examples/h5_subset.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/examples/h5_subset.c b/examples/h5_subset.c index 904d3f8..ad2eaba 100644 --- a/examples/h5_subset.c +++ b/examples/h5_subset.c @@ -11,44 +11,44 @@ * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ -/* - * This example illustrates how to read/write a subset of data (a slab) +/* + * This example illustrates how to read/write a subset of data (a slab) * from/to a dataset in an HDF5 file. It is used in the HDF5 Tutorial. */ - + #include "hdf5.h" #define FILE "subset.h5" -#define DATASETNAME "IntArray" +#define DATASETNAME "IntArray" #define RANK 2 -#define DIM0_SUB 3 /* subset dimensions */ -#define DIM1_SUB 4 +#define DIM0_SUB 3 /* subset dimensions */ +#define DIM1_SUB 4 -#define DIM0 8 /* size of dataset */ -#define DIM1 10 +#define DIM0 8 /* size of dataset */ +#define DIM1 10 int main (void) { - hsize_t dims[2], dimsm[2]; + hsize_t dims[2], dimsm[2]; int data[DIM0][DIM1]; /* data to write */ int sdata[DIM0_SUB][DIM1_SUB]; /* subset to write */ int rdata[DIM0][DIM1]; /* buffer for read */ - + hid_t file_id, dataset_id; /* handles */ - hid_t dataspace_id, memspace_id; + hid_t dataspace_id, memspace_id; + + herr_t status; - herr_t status; - hsize_t count[2]; /* size of subset in the file */ hsize_t offset[2]; /* subset offset in the file */ hsize_t stride[2]; hsize_t block[2]; int i, j; - + /***************************************************************** * Create a new file with default creation and access properties.* * Then create a dataset and write data to it and close the file * @@ -59,7 +59,7 @@ main (void) dims[0] = DIM0; dims[1] = DIM1; - dataspace_id = H5Screate_simple (RANK, dims, NULL); + dataspace_id = H5Screate_simple (RANK, dims, NULL); dataset_id = H5Dcreate2 (file_id, DATASETNAME, H5T_STD_I32BE, dataspace_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); @@ -71,7 +71,7 @@ main (void) data[j][i] = 1; else data[j][i] = 2; - } + } status = H5Dwrite (dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data); @@ -89,7 +89,7 @@ main (void) /***************************************************** * Reopen the file and dataset and write a subset of * - * values to the dataset. + * values to the dataset. *****************************************************/ file_id = H5Fopen (FILE, H5F_ACC_RDWR, H5P_DEFAULT); @@ -100,7 +100,7 @@ main (void) offset[0] = 1; offset[1] = 2; - count[0] = DIM0_SUB; + count[0] = DIM0_SUB; count[1] = DIM1_SUB; stride[0] = 1; @@ -109,18 +109,18 @@ main (void) block[0] = 1; block[1] = 1; - /* Create memory space with size of subset. Get file dataspace + /* Create memory space with size of subset. Get file dataspace and select subset from file dataspace. */ dimsm[0] = DIM0_SUB; dimsm[1] = DIM1_SUB; - memspace_id = H5Screate_simple (RANK, dimsm, NULL); + memspace_id = H5Screate_simple (RANK, dimsm, NULL); dataspace_id = H5Dget_space (dataset_id); status = H5Sselect_hyperslab (dataspace_id, H5S_SELECT_SET, offset, stride, count, block); - /* Write a subset of data to the dataset, then read the + /* Write a subset of data to the dataset, then read the entire dataset back from the file. */ printf ("\nWrite subset to file specifying:\n"); @@ -128,11 +128,11 @@ main (void) for (j = 0; j < DIM0_SUB; j++) { for (i = 0; i < DIM1_SUB; i++) sdata[j][i] = 5; - } + } status = H5Dwrite (dataset_id, H5T_NATIVE_INT, memspace_id, dataspace_id, H5P_DEFAULT, sdata); - + status = H5Dread (dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata); @@ -147,5 +147,5 @@ main (void) status = H5Sclose (dataspace_id); status = H5Dclose (dataset_id); status = H5Fclose (file_id); - + } |