summaryrefslogtreecommitdiffstats
path: root/doc/html/Tutor/examples/h5_extend.c
diff options
context:
space:
mode:
Diffstat (limited to 'doc/html/Tutor/examples/h5_extend.c')
-rw-r--r--doc/html/Tutor/examples/h5_extend.c141
1 files changed, 0 insertions, 141 deletions
diff --git a/doc/html/Tutor/examples/h5_extend.c b/doc/html/Tutor/examples/h5_extend.c
deleted file mode 100644
index 1f81827..0000000
--- a/doc/html/Tutor/examples/h5_extend.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/**************************************************************
- *
- * This example shows how to work with extendible datasets.
- * In the current version of the library a dataset MUST be
- * chunked in order to be extendible.
- *
- * This example is derived from the h5_extend_write.c and
- * h5_read_chunk.c examples that are in the "Introduction
- * to HDF5".
- *
- *************************************************************/
-
-#include "hdf5.h"
-
-#define FILE "ext.h5"
-#define DATASETNAME "ExtendibleArray"
-#define RANK 2
-
-int
-main (void)
-{
- hid_t file; /* handles */
- hid_t dataspace, dataset;
- hid_t filespace;
- hid_t cparms;
- hid_t memspace;
-
- hsize_t dims[2] = { 3, 3}; /* dataset dimensions
- at creation time */
- hsize_t dims1[2] = { 3, 3}; /* data1 dimensions */
- hsize_t dims2[2] = { 7, 1}; /* data2 dimensions */
-
- hsize_t maxdims[2] = {H5S_UNLIMITED, H5S_UNLIMITED};
- hsize_t size[2];
- hsize_t offset[2];
- hsize_t i,j;
- herr_t status, status_n;
- int data1[3][3] = { {1, 1, 1}, /* data to write */
- {1, 1, 1},
- {1, 1, 1} };
-
- int data2[7] = { 2, 2, 2, 2, 2, 2, 2};
-
- /* Variables used in reading data back */
- hsize_t chunk_dims[2] ={2, 5};
- hsize_t chunk_dimsr[2];
- hsize_t dimsr[2];
- int data_out[10][3];
- int rank, rank_chunk;
-
- /* Create the data space with unlimited dimensions. */
- dataspace = H5Screate_simple (RANK, dims, maxdims);
-
- /* Create a new file. If file exists its contents will be overwritten. */
- file = H5Fcreate (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
-
- /* Modify dataset creation properties, i.e. enable chunking */
- cparms = H5Pcreate (H5P_DATASET_CREATE);
- status = H5Pset_chunk ( cparms, RANK, chunk_dims);
-
- /* Create a new dataset within the file using cparms
- creation properties. */
- dataset = H5Dcreate (file, DATASETNAME, H5T_NATIVE_INT, dataspace,
- cparms);
-
- /* Extend the dataset. This call assures that dataset is 3 x 3.*/
- size[0] = 3;
- size[1] = 3;
- status = H5Dextend (dataset, size);
-
- /* Select a hyperslab */
- filespace = H5Dget_space (dataset);
- offset[0] = 0;
- offset[1] = 0;
- status = H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL,
- dims1, NULL);
-
- /* Write the data to the hyperslab */
- status = H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace,
- H5P_DEFAULT, data1);
-
- /* Extend the dataset. Dataset becomes 10 x 3 */
- dims[0] = dims1[0] + dims2[0];
- size[0] = dims[0];
- size[1] = dims[1];
- status = H5Dextend (dataset, size);
-
- /* Select a hyperslab */
- filespace = H5Dget_space (dataset);
- offset[0] = 3;
- offset[1] = 0;
- status = H5Sselect_hyperslab (filespace, H5S_SELECT_SET, offset, NULL,
- dims2, NULL);
-
- /* Define memory space */
- dataspace = H5Screate_simple (RANK, dims2, NULL);
-
- /* Write the data to the hyperslab */
- status = H5Dwrite (dataset, H5T_NATIVE_INT, dataspace, filespace,
- H5P_DEFAULT, data2);
-
- /* Close resources */
- status = H5Dclose (dataset);
- status = H5Sclose (dataspace);
- status = H5Sclose (filespace);
- status = H5Fclose (file);
-
-/****************************************************************
- Read the data back
- ***************************************************************/
-
- file = H5Fopen (FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
- dataset = H5Dopen (file, DATASETNAME);
- filespace = H5Dget_space (dataset);
- rank = H5Sget_simple_extent_ndims (filespace);
- status_n = H5Sget_simple_extent_dims (filespace, dimsr, NULL);
-
- cparms = H5Dget_create_plist (dataset);
- if (H5D_CHUNKED == H5Pget_layout (cparms))
- {
- rank_chunk = H5Pget_chunk (cparms, 2, chunk_dimsr);
- }
-
- memspace = H5Screate_simple (rank,dimsr,NULL);
- status = H5Dread (dataset, H5T_NATIVE_INT, memspace, filespace,
- H5P_DEFAULT, data_out);
- printf("\n");
- printf("Dataset: \n");
- for (j = 0; j < dimsr[0]; j++)
- {
- for (i = 0; i < dimsr[1]; i++)
- printf("%d ", data_out[j][i]);
- printf("\n");
- }
-
- status = H5Pclose (cparms);
- status = H5Dclose (dataset);
- status = H5Sclose (filespace);
- status = H5Sclose (memspace);
- status = H5Fclose (file);
-}