diff options
Diffstat (limited to 'hl/examples/ex_table_03.c')
| -rw-r--r-- | hl/examples/ex_table_03.c | 187 |
1 files changed, 79 insertions, 108 deletions
diff --git a/hl/examples/ex_table_03.c b/hl/examples/ex_table_03.c index 76a9eae..8787275 100644 --- a/hl/examples/ex_table_03.c +++ b/hl/examples/ex_table_03.c @@ -11,7 +11,6 @@ * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ - #include "hdf5.h" #include "hdf5_hl.h" #include <stdlib.h> @@ -24,113 +23,85 @@ *------------------------------------------------------------------------- */ -#define NFIELDS (hsize_t) 5 -#define NRECORDS (hsize_t) 8 -#define NRECORDS_WRITE (hsize_t) 2 -#define TABLE_NAME "table" +#define NFIELDS (hsize_t)5 +#define NRECORDS (hsize_t)8 +#define NRECORDS_WRITE (hsize_t)2 +#define TABLE_NAME "table" -int main( void ) +int +main(void) { - typedef struct Particle - { - char name[16]; - int lati; - int longi; - float pressure; - double temperature; - } Particle; - - Particle dst_buf[NRECORDS]; - - /* Calculate the size and the offsets of our struct members in memory */ - size_t dst_size = sizeof( Particle ); - size_t dst_offset[NFIELDS] = { HOFFSET( Particle, name ), - HOFFSET( Particle, lati ), - HOFFSET( Particle, longi ), - HOFFSET( Particle, pressure ), - HOFFSET( Particle, temperature )}; - - Particle p = {"zero",0,0, 0.0f, 0.0}; - size_t dst_sizes[NFIELDS] = { sizeof( p.name), - sizeof( p.lati), - sizeof( p.longi), - sizeof( p.pressure), - sizeof( p.temperature)}; - - /* Define field information */ - const char *field_names[NFIELDS] = - { "Name","Latitude", "Longitude", "Pressure", "Temperature" }; - /* Fill value particle */ - Particle fill_data[1] = - { {"no data",-1,-1, -99.0f, -99.0} }; - hid_t field_type[NFIELDS]; - hid_t string_type; - hid_t file_id; - hsize_t chunk_size = 10; - hsize_t start; /* Record to start reading/writing */ - hsize_t nrecords; /* Number of records to read/write */ - int i; - - /* Define 2 new particles to write */ - Particle particle_in[NRECORDS_WRITE] = - { {"zero",0,0, 0.0f, 0.0}, - {"one",10,10, 1.0f, 10.0} }; - - /* Initialize the field field_type */ - string_type = H5Tcopy( H5T_C_S1 ); - H5Tset_size( string_type, 16 ); - field_type[0] = string_type; - field_type[1] = H5T_NATIVE_INT; - field_type[2] = H5T_NATIVE_INT; - field_type[3] = H5T_NATIVE_FLOAT; - field_type[4] = H5T_NATIVE_DOUBLE; - -/* Create a new file using default properties. */ - file_id = H5Fcreate( "ex_table_03.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT ); - - /* Make the table */ - H5TBmake_table( "Table Title", - file_id, - TABLE_NAME, - NFIELDS, - NRECORDS, - dst_size, - field_names, - dst_offset, - field_type, - chunk_size, - fill_data, - 0, /* no compression */ - NULL ); /* no data written */ - - - /* Overwrite 2 records starting at record 0 */ - start = 0; - nrecords = NRECORDS_WRITE; - H5TBwrite_records( file_id, TABLE_NAME, start, nrecords, dst_size, dst_offset, - dst_sizes, particle_in); - - /* read the table */ - H5TBread_table( file_id, TABLE_NAME, dst_size, dst_offset, dst_sizes, dst_buf ); - - /* print it by rows */ - for (i=0; i<NRECORDS; i++) { - printf ("%-5s %-5d %-5d %-5f %-5f", - dst_buf[i].name, - dst_buf[i].lati, - dst_buf[i].longi, - dst_buf[i].pressure, - dst_buf[i].temperature); - printf ("\n"); - } - - /* close type */ - H5Tclose( string_type ); - - /* close the file */ - H5Fclose( file_id ); - - return 0; - + typedef struct Particle { + char name[16]; + int lati; + int longi; + float pressure; + double temperature; + } Particle; + + Particle dst_buf[NRECORDS]; + + /* Calculate the size and the offsets of our struct members in memory */ + size_t dst_size = sizeof(Particle); + size_t dst_offset[NFIELDS] = {HOFFSET(Particle, name), HOFFSET(Particle, lati), HOFFSET(Particle, longi), + HOFFSET(Particle, pressure), HOFFSET(Particle, temperature)}; + + Particle p = {"zero", 0, 0, 0.0f, 0.0}; + size_t dst_sizes[NFIELDS] = {sizeof(p.name), sizeof(p.lati), sizeof(p.longi), sizeof(p.pressure), + sizeof(p.temperature)}; + + /* Define field information */ + const char *field_names[NFIELDS] = {"Name", "Latitude", "Longitude", "Pressure", "Temperature"}; + /* Fill value particle */ + Particle fill_data[1] = {{"no data", -1, -1, -99.0f, -99.0}}; + hid_t field_type[NFIELDS]; + hid_t string_type; + hid_t file_id; + hsize_t chunk_size = 10; + hsize_t start; /* Record to start reading/writing */ + hsize_t nrecords; /* Number of records to read/write */ + int i; + + /* Define 2 new particles to write */ + Particle particle_in[NRECORDS_WRITE] = {{"zero", 0, 0, 0.0f, 0.0}, {"one", 10, 10, 1.0f, 10.0}}; + + /* Initialize the field field_type */ + string_type = H5Tcopy(H5T_C_S1); + H5Tset_size(string_type, 16); + field_type[0] = string_type; + field_type[1] = H5T_NATIVE_INT; + field_type[2] = H5T_NATIVE_INT; + field_type[3] = H5T_NATIVE_FLOAT; + field_type[4] = H5T_NATIVE_DOUBLE; + + /* Create a new file using default properties. */ + file_id = H5Fcreate("ex_table_03.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + + /* Make the table */ + H5TBmake_table("Table Title", file_id, TABLE_NAME, NFIELDS, NRECORDS, dst_size, field_names, dst_offset, + field_type, chunk_size, fill_data, 0, /* no compression */ + NULL); /* no data written */ + + /* Overwrite 2 records starting at record 0 */ + start = 0; + nrecords = NRECORDS_WRITE; + H5TBwrite_records(file_id, TABLE_NAME, start, nrecords, dst_size, dst_offset, dst_sizes, particle_in); + + /* read the table */ + H5TBread_table(file_id, TABLE_NAME, dst_size, dst_offset, dst_sizes, dst_buf); + + /* print it by rows */ + for (i = 0; i < NRECORDS; i++) { + printf("%-5s %-5d %-5d %-5f %-5f", dst_buf[i].name, dst_buf[i].lati, dst_buf[i].longi, + dst_buf[i].pressure, dst_buf[i].temperature); + printf("\n"); + } + + /* close type */ + H5Tclose(string_type); + + /* close the file */ + H5Fclose(file_id); + + return 0; } - |