2018.06.29 10:08 "[Tiff] Writing tiles out of order", by Roger Leigh

2018.06.29 11:46 "Re: [Tiff] Writing tiles out of order", by Roger Leigh

On 29/06/18 12:37, Even Rouault wrote:

Just to clarify, this is only time [I/O] expensive when reading and updating the tile offsets+sizes?

Yes

Or is it also wasteful of space by duplicating the whole IFD each time I do an update?

No, there's an optimization in libtiff where it detects that only the offset +size arrays have been modified, and rewrite them in place.

Ah, brilliant, that's really great to know and certainly puts my concerns about bloating the file to rest.

Thanks again,

Roger