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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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HDF Reference Manual - 07/29/98, NCSA HDF Development Group.