The
HDF_VG_LONE function returns an array containing the IDs of all
VGroups
in a Hierarchical Data Format file that are not contained in another
VGroup
. If there are no lone
VGroups
, HDF_VG_LONE returns -1.
Calling Sequence
Result = HDF_VG_LONE(
FileHandle
)
Arguments
FileHandle
The HDF file handle returned by a previous call to HDF_OPEN.
Keywords
MAXSIZE
The maximum number of groups to return (the default is to return all lone VGroups). For example, to return no more than 12 VGroups, use the command:
X = HDF_VG_LONE(fid, MAX=12)
Example
X=HDF_VG_LONE(fid)
IF X(0) EQ-1 THEN $
PRINT, "No Lone VGroups" ELSE PRINT, "Lone VGroups:", X
