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80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* This example writes data to the HDF5 file.
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* Data conversion is performed during write operation.
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*/
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#include <hdf5.h>
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#define FILE "SDS.h5"
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#define DATASETNAME "IntArray"
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#define NX 5 /* dataset dimensions */
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#define NY 6
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#define RANK 2
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main ()
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{
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hid_t file, dataset; /* file and dataset handles */
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hid_t datatype, dataspace; /* handles */
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hsize_t dimsf[2]; /* dataset dimensions */
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herr_t status;
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int data[NX][NY]; /* data to write */
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int i, j;
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/*
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* Data and output buffer initialization.
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*/
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for (j = 0; j < NX; j++) {
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for (i = 0; i < NY; i++)
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data[j][i] = i + j;
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}
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/* 0 1 2 3 4 5
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1 2 3 4 5 6
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2 3 4 5 6 7
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3 4 5 6 7 8
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4 5 6 7 8 9 */
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/*
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* Create a new file using H5F_ACC_TRUNC access,
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* default file creation properties, and default file
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* access properties.
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*/
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file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
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/*
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* Describe the size of the array and create the data space for fixed
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* size dataset.
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*/
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dimsf[0] = NX;
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dimsf[1] = NY;
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dataspace = H5Screate_simple(RANK, dimsf, NULL);
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/*
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* Define datatype for the data in the file.
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* We will store little endian INT numbers.
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*/
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datatype = H5Tcopy(H5T_NATIVE_INT);
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status = H5Tset_order(datatype, H5T_ORDER_LE);
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/*
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* Create a new dataset within the file using defined dataspace and
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* datatype and default dataset creation properties.
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*/
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dataset = H5Dcreate(file, DATASETNAME, datatype, dataspace,
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H5P_DEFAULT);
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/*
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* Write the data to the dataset using default transfer properties.
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*/
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status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
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H5P_DEFAULT, data);
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/*
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* Close/release resources.
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*/
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H5Sclose(dataspace);
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H5Tclose(datatype);
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H5Dclose(dataset);
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H5Fclose(file);
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}
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