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From: brox@corena.no (Bjorn Brox)
Message-Id: <9805141102.AA13923@senja.corena.no>
Subject: Re: Reading concatenated tiff files
To: bl@ppc.mc (bruno Ledoux)
Date: Thu, 14 May 1998 13:02:19 +0200 (CETdst)
Cc: tiff@sgi.com (TIFF Mailing List)
In-Reply-To: <199805140753.JAA27759@www.ppc.mc> from "bruno Ledoux" at May 14, 98 09:53:44 am
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bruno Ledoux wrote this:
> 
> Hi,
> 
> Storing multiple images in a TIFF file not discouraged at all, and works
> very well (we currently use it to store multiple resolution of the same
> scanned image in one file).
..
>      TIFFSetDirectory(tif,(tdir_t)res);
...
He was talking about concatenated tiff files, and, if you read the question,
is aware of the support of multiple images within one TIFF file.

Concatenated TIFF files is a method that is very often used in
distributing technical manuals, for example maintenance manuals for
aeroplanes following the ATA standard.

All graphics is concatenated TIFF files in a kind of TAPE file where the
next image start at a block size boundary.

The TIFFClientOpen() method I described will work on such files, assuming
you have enough information of detecting the sub-TIFF file size and where
the next TIFF file i starting.

I have written such an interface myself once for unpacking such concatenated
files containing TIFF and CGM images for a Aeroplane Maintenance Manual
from Boeing.

-- 
Bjorn Brox, mailto:brox@corena.no, CORENA A/S, http://www.corena.no/
P.O.Box 1024, Kongsberg Naeringspark, N-3601 Kongsberg, NORWAY
Phone: +47 32737435, Fax: +47 32736877, Mobile: +47 92638590
