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DF24reqil/d2reqil
intn DF24reqil (intn
il
)
il
IN
Memory interlace of the next image read
Purpose
Specifies the interlace mode for the next call to
DF24getimage
will use.
Return value
Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
Description
Regardless of what interlace scheme is used to store the image,
DF24reqil
causes the image to be loaded into memory and be interlaced according to the specification of
il
.
Because a call to
DF24reqil
may require a substantial reordering of the data, slower I/O performance could result than would be achieved if no change in interlace were requested.
The interlace mode codes are: 0 for pixel interlacing,1 for scan-line interlacing and 2 for scan-plane interlacing.
FORTRAN
integer function d2reqil(il)
integer il
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hdfhelp@ncsa.uiuc.edu
HDF User's Reference Manual, Draft 06/09/97, NCSA HDF Development Group.