Re: Quark conflicting properties
Re: Quark conflicting properties
- Subject: Re: Quark conflicting properties
- From: Jerome Gantner <email@hidden>
- Date: Sun, 14 Dec 2003 14:16:43 -0500
Quark imports a low res preview of the image, not the image. The bounds
that are returned for the image are based off of that preview, which
according to the documentation I have read should be a 72 dpi preview
(at least in 3.32) for tiff images. Quark imports the preview generated
by the original program for eps files, it does not create its own for
these. There was an extension from ALAP back in the days of 3.32 that
allowed the user to set a preview resolution for all imported tiff's,
say 200 dpi, so that any images imported by that version of Quark would
be a standard resolution based on that preference, this could make the
files a lot larger though. Another thing to remember is that Quark has
a low res import as well, which is 1/2 of the higher quality preview
(in 3.32 is should have been 36 dpi).
I don't know how Quark (4.11) builds its preview images, but a quick
test shows that any tiff image with a resolution that is a multiple of
72 returns a value that is based on 72 dpi. However when the resolution
a 1" image at 100 ppi returns 50 for the width of bounds, a 200 ppi
image returns 66, and a 300 ppi image returns 75. I would image that
Quark is downsizing these images based on some predefined formula,
maybe someone with a better math background than I do could come up
with a formula for the ratio.
As far as I know the only way to get an accurate measure of an image,
both physical as well as pixel dimension, is to go outside of Quark to
another application.
_______________________________________________
applescript-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/applescript-users
Do not post admin requests to the list. They will be ignored.