Return-Path: <tiff-bounces@lists.maptools.org>
Received: from inas003.isp.belgacom.be (localhost [127.0.0.1])
        by inav013.isp.belgacom.be (8.12.11.20060308/8.12.11/Skynet-IN-AV-3.00) with ESMTP id k34MGxvw029153
        for <joris.at.lebbeke@skynet.be>; Wed, 5 Apr 2006 00:16:59 +0200
        (envelope-from <tiff-bounces@lists.maptools.org>)
Received: from inmx013.isp.belgacom.be (inmx013.isp.belgacom.be [195.238.4.216])
        by inas003.isp.belgacom.be (8.12.11.20060308/8.12.11/Skynet-IN-AS-2.03) with ESMTP id k34MGtqD029332
        for <joris.at.lebbeke@skynet.be>; Wed, 5 Apr 2006 00:16:56 +0200
        (envelope-from <tiff-bounces@lists.maptools.org>)
Received: from duke.maptools.org (r153.dmsolutions.ca [209.217.116.153] (may be forged))
        by inmx013.isp.belgacom.be (8.12.11.20060308/8.12.11/Skynet-IN-2.32) with ESMTP id k34MGpd8025552
        for <joris.at.lebbeke@skynet.be>; Wed, 5 Apr 2006 00:16:51 +0200
        (envelope-from <tiff-bounces@lists.maptools.org>)
Received: from duke.maptools.org (duke.maptools.org [127.0.0.1])
	by duke.maptools.org (8.12.11/8.12.10) with ESMTP id k34M9wut024784;
	Tue, 4 Apr 2006 18:10:11 -0400
Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.198])
	by duke.maptools.org (8.12.11/8.12.10) with ESMTP id k34M9ttQ024752
	for <tiff@lists.maptools.org>; Tue, 4 Apr 2006 18:09:55 -0400
Received: by zproxy.gmail.com with SMTP id v1so368475nzb
	for <tiff@lists.maptools.org>; Tue, 04 Apr 2006 15:09:54 -0700 (PDT)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com;
	h=received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references;
	b=C6NpVGLHV6hprsXn+mVyBR7Outn04dOAoN1+0T3BeN/05XhywLvfve1hO92bRoazEo5sPLUVMicWSoIpUoali3UnVjw1lal7dQit7WBouMWa+Cr4sGXuGhdSuvIJqSWVwiQi4jF2fvtLXXm9KH32Ghsn1G1hVz+sra1zAg8CRWk=
Received: by 10.65.151.3 with SMTP id d3mr1055665qbo;
	Tue, 04 Apr 2006 15:09:52 -0700 (PDT)
Received: by 10.65.154.18 with HTTP; Tue, 4 Apr 2006 15:09:52 -0700 (PDT)
Message-ID: <931f8ea90604041509p394fc4b9ycf60012a244241fa@mail.gmail.com>
Date: Tue, 4 Apr 2006 18:09:52 -0400
From: "Frank Warmerdam" <warmerdam@pobox.com>
To: "Chris Cox" <ccox@adobe.com>
Subject: Re: [Tiff] BigTIFF Suggestion
In-Reply-To: <C058342F.2AA25%ccox@adobe.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Disposition: inline
References: <4432A3E5.6080107@diaginc.com> <C058342F.2AA25%ccox@adobe.com>
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by duke.maptools.org id
	k34M9ttQ024752
Cc: TIFF <tiff@lists.maptools.org>
X-BeenThere: tiff@lists.maptools.org
X-Mailman-Version: 2.1.4
Precedence: list
List-Id: TIFF and libtiff discussion <tiff.lists.maptools.org>
List-Unsubscribe: <http://lists.maptools.org/mailman/listinfo/tiff>,
	<mailto:tiff-request@lists.maptools.org?subject=unsubscribe>
List-Archive: <http://lists.maptools.org/mailman/private/tiff>
List-Post: <mailto:tiff@lists.maptools.org>
List-Help: <mailto:tiff-request@lists.maptools.org?subject=help>
List-Subscribe: <http://lists.maptools.org/mailman/listinfo/tiff>,
	<mailto:tiff-request@lists.maptools.org?subject=subscribe>
Sender: tiff-bounces@lists.maptools.org
Errors-To: tiff-bounces@lists.maptools.org
X-UIDL: 000000000023ceae.0000151c
X-MSP-STORE: Wed, 05 Apr 2006 00:17:00 --21-99
Status:   

On 4/4/06, Chris Cox <ccox@adobe.com> wrote:
> How often do applications append something to a TIFF file instead of writing
> the whole file at once?
>
> I don't think this is a common enough occurrence to change the file format.

Larry / Chris,

I'm of the same opinion.  If we were designing he format from
scratch I *might* think this was a good idea.  But I am hesitant
to put features in BigTIFF that make it different than TIFF (other
than Bigness support of course).

Of course an application for which this was very important
could keep track of the last directory offset in a small associated
text file if needed.

Best regards,

--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

_______________________________________________
Tiff mailing list: Tiff@lists.maptools.org
http://lists.maptools.org/mailman/listinfo/tiff
http://www.remotesensing.org/libtiff/
