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H5TB_READ_FIELDS_NAME

Reads one or several fields. The fields are identified by name.

Procedure:

H5TB_READ_FIELDS_NAME(loc_id, table_name, field_names, start, nrecords, type_size, field_offset, dst_sizes, data)

Signature:

herr_t H5TBread_fields_name ( hid_t loc_id, const char *table_name, const char * field_names, hsize_t start, hsize_t nrecords, size_t type_size,  const size_t *field_offset, const size_t *dst_sizes, void *data)

subroutine h5tbread_field_name_f(loc_id, dset_name, field_name, start, &
                                 nrecords, type_size, buf, errcode) 
  implicit none
  integer(HID_T), intent(IN) :: loc_id           ! file or group identifier 
  character(LEN=*), intent(IN) :: dset_name      ! name of the dataset 
  character(LEN=*), intent(IN) :: field_name     ! name of the field
  integer(HSIZE_T), intent(IN) :: start          ! start record 
  integer(HSIZE_T), intent(IN) :: nrecords       ! records
  integer(SIZE_T), intent(IN) :: type_size       ! type size
  , intent(IN), dimension(*) :: buf        ! data buffer 
  integer :: errcode                             ! error code
end subroutine h5tbread_field_name_f

Parameters:

hid_t loc_id

    IN: Identifier of the file or group to read the table within.

const char *table_name

    IN: The name of the dataset to read.

const char * field_names

    IN: An array containing the names of the fields to read.

hsize_t  start

    IN: The start record to read from.

hsize_t nrecords

    IN: The number of records to read.

hsize_t type_size

    IN: The size in bytes of the structure associated with the table. This value is obtained with sizeof.

const size_t *field_offset

    IN: An array containing the offsets of the fields.

const size_t *dst_sizes

    IN: An array containing the size in bytes of the fields.

void *data

    OUT: Buffer with data.

Description:

H5TBread_fields_name reads the fields identified by  field_names from a dataset named table_name attached to the object specified by the identifier loc_id. 

Returns:

Returns a non-negative value if successful; otherwise returns a negative value.

Example:

examples / h5_subset.c [32:42]  1.10/master  HDFFV/hdf5
int
main (void)
{
    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; 

     PROGRAM COMPOUNDEXAMPLE

     USE HDF5 ! This module contains all necessary modules

     IMPLICIT NONE

     CHARACTER(LEN=11), PARAMETER :: filename = "compound.h5" ! File name
     CHARACTER(LEN=8), PARAMETER :: dsetname = "Compound"     ! Dataset name
     INTEGER, PARAMETER :: dimsize = 6 ! Size of the dataset

     INTEGER(HID_T) :: file_id       ! File identifier

c++ / examples / create.cpp [33:43]  1.10/master  HDFFV/hdf5
int main (void)
{
   /*
    * Data initialization.
    */
   int i, j;
   int data[NX][NY];          // buffer for data to write
   for (j = 0; j < NX; j++)
   {
      for (i = 0; i < NY; i++)

public class H5Ex_D_Chunk {
    private static String FILENAME = "H5Ex_D_Chunk.h5";
    private static String DATASETNAME = "DS1";
    private static final int DIM_X = 6;
    private static final int DIM_Y = 8;
    private static final int CHUNK_X = 4;
    private static final int CHUNK_Y = 4;
    private static final int RANK = 2;
    private static final int NDIMS = 2;

--- Last Modified: November 15, 2017 | 02:45 PM