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Date: Thu, 03 Jul 2008 11:28:10 -0400
From: Frank Warmerdam <warmerdam@pobox.com>
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To: Gary McGath <gary@hulmail.harvard.edu>
Subject: Re: [Tiff] eta for bigtiff support?
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Gary McGath wrote:
> Bob Friesenhahn wrote:
> 
>>> > Does anyone know how far along BigTiff support is?  I see its on 4.0
>>> > beta2 but I cant tell how much of the proposed spec has been
>>> > implemented.  All i really want to do is open and read tiles from a
>>> > jpeg compressed pyramidal tiled bigtiff? Is there enough there already
>>> > to allow me to do this?
>>
>> As far as I am aware, all of the spec has been implemented. The 
>> library is currently in beta for a reason.  If you are afraid to try 
>> it out, then you are losing the opportunity to report bugs (so they 
>> can be fixed) prior to release.  In fact the dearth of feedback is 
>> likely one of the reasons why the library has not yet been formally 
>> released.
> 
> There's a reason for the lack of feedback. The documentation at 
> http://www.awaresystems.be/imaging/tiff/bigtiff.html says:
> 
>> This is a proposal, not a specification. Don't go implementing it just 
>  >yet and releasing your code to the public, it has not yet been approved
>  >and is liable to change. You don't want to be the one whose files turn
>  >out invalid in 6 months from now.
> 
> It shouldn't be surprising that people aren't jumping in to test when 
> the definition of BigTIFF is still in flux, and has shown no sign of 
> approaching a stable specification.

Gary,

The specification is not in flux - however, clearly some of the documentation
and web site materials have not been kept up to date and are off-putting to
adoption.

Joris - can you address some of this?

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    | President OSGeo, http://osgeo.org

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