mv_sds_to_external.c

#include "mfhdf.h"

#define FILE_NAME     "SDS.hdf"

#define EXT_FILE_NAME "ExternalSDS"

#define OFFSET        24

main( ) 

{

   /************************* Variable declaration **************************/

   int32 sd_id, sds_id, sds_index, offset;

   intn  status;

   /********************* End of variable declaration ***********************/

   /*

   * Open the file and initialize the SD interface.

   */

   sd_id = SDstart (FILE_NAME, DFACC_WRITE);

   /*

   * Select the first data set.

   */

   sds_index = 0;   

   sds_id = SDselect (sd_id, sds_index);

   /*

   * Create a file with the name EXT_FILE_NAME and move the data set

   * values into it, starting at byte location OFFSET.

   */

   status = SDsetexternalfile (sds_id, EXT_FILE_NAME, OFFSET);

   /*

   * Terminate access to the data set, SD interface, and file.

   */

   status = SDendaccess (sds_id);

   status = SDend (sd_id);

}