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January 2003

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2003.01.31 16:52 "Opening compressed images in "update" mode.", by Frank Warmerdam
2003.02.03 07:54 "Re: Opening compressed images in "update" mode.", by Rainer Wiesenfarth

2003.01.31 16:52 "Opening compressed images in "update" mode.", by Frank Warmerdam

Folks,

As part of my efforts to improve the ability of libtiff to update existing
images in-place, I have removed the restriction in tif_open.c that prevented
compressed images from being opened in update mode.  I have added a
check in TIFFWriteCheck() (called before imagery can be written on a
directory) to fail if an attempt is made to write to an existing
compressed image.

If anyone knows a reason this will be terrible please let me know.

This should allow updates to directory information of a compressed image
without having to copy everything.

If anyone knows a reason this would be really bad, please let me know.  The
change is in CVS if anyone wants to try it.

Related to:

   http://bugzilla.remotesensing.org/show_bug.cgi?id=198

Best regards,

-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam@pobox.com
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