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57a2e33c57
bug fixes. Description: Added #include "hdf5_hl.h" to each example programs. Platforms tested: Heping.
136 lines
4.2 KiB
C
136 lines
4.2 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include "hdf5.h"
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#include "hdf5_hl.h"
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#include <stdlib.h>
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/*-------------------------------------------------------------------------
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* Table API example
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*
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* H5TBwrite_records
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*
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*-------------------------------------------------------------------------
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*/
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#define NFIELDS (hsize_t) 5
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#define NRECORDS (hsize_t) 8
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#define NRECORDS_WRITE (hsize_t) 2
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#define TABLE_NAME "table"
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int main( void )
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{
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typedef struct Particle
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{
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char name[16];
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int lati;
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int longi;
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float pressure;
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double temperature;
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} Particle;
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Particle dst_buf[NRECORDS];
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/* Calculate the size and the offsets of our struct members in memory */
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size_t dst_size = sizeof( Particle );
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size_t dst_offset[NFIELDS] = { HOFFSET( Particle, name ),
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HOFFSET( Particle, lati ),
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HOFFSET( Particle, longi ),
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HOFFSET( Particle, pressure ),
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HOFFSET( Particle, temperature )};
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Particle p = {"zero",0,0, 0.0f, 0.0};
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size_t dst_sizes[NFIELDS] = { sizeof( p.name),
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sizeof( p.lati),
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sizeof( p.longi),
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sizeof( p.pressure),
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sizeof( p.temperature)};
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/* Define field information */
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const char *field_names[NFIELDS] =
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{ "Name","Latitude", "Longitude", "Pressure", "Temperature" };
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/* Fill value particle */
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Particle fill_data[1] =
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{ {"no data",-1,-1, -99.0f, -99.0} };
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hid_t field_type[NFIELDS];
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hid_t string_type;
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hid_t file_id;
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hsize_t chunk_size = 10;
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hsize_t start; /* Record to start reading/writing */
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hsize_t nrecords; /* Number of records to read/write */
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herr_t status;
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int i;
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/* Define 2 new particles to write */
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Particle particle_in[NRECORDS_WRITE] =
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{ {"zero",0,0, 0.0f, 0.0},
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{"one",10,10, 1.0f, 10.0} };
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/* Initialize the field field_type */
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string_type = H5Tcopy( H5T_C_S1 );
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H5Tset_size( string_type, 16 );
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field_type[0] = string_type;
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field_type[1] = H5T_NATIVE_INT;
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field_type[2] = H5T_NATIVE_INT;
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field_type[3] = H5T_NATIVE_FLOAT;
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field_type[4] = H5T_NATIVE_DOUBLE;
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/* Create a new file using default properties. */
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file_id = H5Fcreate( "ex_table_03.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT );
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/* Make the table */
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status=H5TBmake_table( "Table Title",
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file_id,
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TABLE_NAME,
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NFIELDS,
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NRECORDS,
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dst_size,
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field_names,
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dst_offset,
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field_type,
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chunk_size,
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fill_data,
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0, /* no compression */
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NULL ); /* no data written */
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/* Overwrite 2 records starting at record 0 */
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start = 0;
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nrecords = NRECORDS_WRITE;
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status=H5TBwrite_records( file_id, TABLE_NAME, start, nrecords, dst_size, dst_offset,
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dst_sizes, particle_in);
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/* read the table */
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status=H5TBread_table( file_id, TABLE_NAME, dst_size, dst_offset, dst_sizes, dst_buf );
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/* print it by rows */
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for (i=0; i<NRECORDS; i++) {
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printf ("%-5s %-5d %-5d %-5f %-5f",
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dst_buf[i].name,
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dst_buf[i].lati,
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dst_buf[i].longi,
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dst_buf[i].pressure,
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dst_buf[i].temperature);
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printf ("\n");
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}
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/* Close the file. */
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H5Fclose( file_id );
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return 0;
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}
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