2008.07.02 17:32 "[Tiff] BigTiff Support", by alexander johnson

2008.07.03 15:28 "Re: [Tiff] eta for bigtiff support?", by Frank Warmerdam

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.


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
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and watch the world go round - Rush    | President OSGeo, http://osgeo.org