Re: replacing embedded images in Illustrator
Re: replacing embedded images in Illustrator
- Subject: Re: replacing embedded images in Illustrator
- From: Stan Cleveland <email@hidden>
- Date: Fri, 25 Jul 2008 15:04:09 -0700
- Thread-topic: replacing embedded images in Illustrator
On 7/25/08 2:45 PM, "Stan Cleveland" wrote:
> Below are four examples showing how to calculate the correct matrix values
> from the incorrect ones supplied for placed images. The algorithms were
> determined through experimentation, but have worked flawlessly (so far).
Oops!!! The code in my first message was flawed. The code below is correct.
Sorry,
Stan C.
-- image at 100%, x = 72, y = 720
-- embedded values are correct
set {a, b, c, d, tx, ty} to {1.0, 0.0, 0.0, 1.0, 72.0, 720.0}
-- placed values are wrong!
set {a, b, c, d, tx, ty} to {1.0, 0.0, 0.0, -1.0, -7813.0, 9307.0}
set dFixed to -d
set txFixed to 7885 * a + tx
set tyFixed to 8587 * d + ty
-- image at 50%, x = 72, y = 720
-- embedded values are correct
set {a, b, c, d, tx, ty} to {0.5, 0.0, 0.0, 0.5, 72.0, 720.0}
-- placed values are wrong!
set {a, b, c, d, tx, ty} to {0.5, 0.0, 0.0, -0.5, -3870.5, 5013.5}
set dFixed to -d
set txFixed to 7885 * a + tx
set tyFixed to 8587 * d + ty
-- image at 50%, x = 72, y = 720
-- embedded values are correct
set {a, b, c, d, tx, ty} to {0.25, 0.0, 0.0, 0.25, 72.0, 720.0}
-- placed values are wrong!
set {a, b, c, d, tx, ty} to {0.25, 0.0, 0.0, -0.25, -1899.25, 2866.75}
set dFixed to -d
set txFixed to 7885 * a + tx
set tyFixed to 8587 * d + ty
-- image at 74.1171598434%, x = 175.35693359375, y = 565.494140625
-- embedded values are correct
set {a, b, c, d, tx, ty} to {0.741171598434, 0.0, 0.0, 0.741171598434, ¬
175.35693359375, 565.494140625}
-- placed values are wrong!
set {a, b, c, d, tx, ty} to {0.741171598434, 0.0, 0.0, -0.741171598434, ¬
-5668.78125, 6929.9345703125}
set dFixed to -d
set txFixed to 7885 * a + tx
set tyFixed to 8587 * d + ty
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