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Date: Thu, 9 May 2002 11:24:49 -0400
To: tiff <tiff@olympiakos.com>
From: Jon Saxton <spam.free@verizon.net>
Reply-To: Jon Saxton <js@triton.vg>
In-Reply-To: <005001c1f766$1361b5a0$430219ac@pigeon>
References: <005001c1f766$1361b5a0$430219ac@pigeon>
Subject: Re: Orientation and Tiled images?
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** Reply to message from "Michael O'Rourke" <morourke@adobe.com> on Thu, 9 May
2002 09:30:31 -0500

> In looking at a tiled image I have with orientation of 4, it seems that the
> orientation should be used to determine the order of the tiles but the data
> within the tiles is still Y to Y+N. For instance the first tile is the
> bottom of the image, but the raster lines are from 1100 to 1300, not 1300 to
> 1100.
> 
> Is this normal and correct?
> 
> Thanks,
> 
> Michael


Just from thinking about this, I would expect that orientation should determine
both the tiling order AND the pixel order within the tile.  Nothing else makes
sense to me.

If you have a first-quadrant drawing space then logically you should tile from
the same origin, otherwise where would you start?

--
Jon Saxton <js@triton.vg> OS/2 software developer
U.S. agent for Triton Technologies International Ltd
http://www.triton.vg/


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