int32 SDreftoindex(int32 sd_id, int32 sds_ref)
sd_id
IN:
SD interface identifier returned by SDstart
sds_ref
Reference number of the data set
Purpose
Returns the index of a data set given the reference number.
Return value
Returns the index of the data set (sds_index) if the data set is found and FAIL (or -1) otherwise.
Description
SDreftoindex returns the index of a data set identified by its reference number, sds_ref.
The value of sds_index returned by SDreftoindex can be passed to SDselect to obtain a data set identifier (sds_id).
FORTRAN
integer function sfref2index(sd_id, sds_ref)
integer sd_id, sds_ref