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#include "mfhdf.h"
#define FILE_NAME "SDS.hdf"
int main()
{
/************************* Variable declaration **************************/
int32 sd_id, sds_id;
intn status;
int32 n_datasets, n_file_attrs, index;
int32 dim_sizes[H4_MAX_VAR_DIMS];
int32 rank, data_type, n_attrs;
char name[H4_MAX_NC_NAME];
int i;
/********************* End of variable declaration ***********************/
/*
* Open the file and initialize the SD interface.
*/
sd_id = SDstart (FILE_NAME, DFACC_READ);
/*
* Determine the number of data sets in the file and the number
* of file attributes.
*/
status = SDfileinfo (sd_id, &n_datasets, &n_file_attrs);
/*
* Access every data set and print its name, rank, dimension sizes,
* data type, and number of attributes.
* The following information should be displayed:
*
* name = SDStemplate
* rank = 2
* dimension sizes are : 16 5
* data type is 24
* number of attributes is 0
*/
for (index = 0; index < n_datasets; index++)
{
sds_id = SDselect (sd_id, index);
status = SDgetinfo (sds_id, name, &rank, dim_sizes,
&data_type, &n_attrs);
printf ("name = %s\n", name);
printf ("rank = %d\n", rank);
printf ("dimension sizes are : ");
for (i=0; i< rank; i++) printf ("%d ", dim_sizes[i]);
printf ("\n");
printf ("data type is %d\n", data_type);
printf ("number of attributes is %d\n", n_attrs);
/*
* Terminate access to the data set.
*/
status = SDendaccess (sds_id);
}
/*
* Terminate access to the SD interface and close the file.
*/
status = SDend (sd_id);
return 0;
}
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