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Date: Thu, 1 Aug 2013 16:54:31 -0400
Message-ID: <CAFgWiza=M48Wh9wJdp8DS0yw52Fr4iZSYKFtewrBHv7r-XEjSw@mail.gmail.com>
Subject: Re: [AE] Expression/Effect center
From: Doug <bassett.doug@gmail.com>
To: After Effects Mail List <AE-List@media-motion.tv>
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Hey Dan,
That didn't work out. I thought that was what I used once  before too.

The best way to describe what I'm trying to do is similar to a magnifying
glass.
Think of 2 Layers.
1. Magnifying glass layer
2. Adjustment layer - this has the effect magnify.

I want the magnify center effect point to follow position and rotation of
1. Magnifying Glass layer Which also has it's anchor point moved to the
handle so it pivots at that point.
Adding *thisComp.layer("magnifying_glass.ai").transform.position* to the
effect center point works great except it's center is aligned with the
anchor of 1. Magnifying glass layer.

I need to offset this to the center of the glass. I've tried compCoords =
[960,540]; and layerCoords = [200,450];, I've tried pre-comping, parenting,
re-parenting to nulls, but it always breaks.


*From:* D <bassett.doug@gmail.com>an
*Sent:* Thursday, August 01, 2013 12:43 PM
*Subject:* [AE] Expression/Effect center
nstead of +value, try appending  .valueAtTime(0) to what you got from the
pick whip.

Dan

*From:* Doug <bassett.doug@gmail.com>
*Sent:* Thursday, August 01, 2013 12:43 PM
*Subject:* [AE] Expression/Effect center

I have an effect center point on and adjustment layer pick whipped to
another layers position.
It works fine, but I need it to retain it's original position and not move
to the anchor point because I'm using rotation. I thought I could just do
+value at the end, but no luck.


thisComp.layer("glass.ai <http://media-motion.tv:8100/Redirect/glass.ai>
").transform.position

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<div dir=3D"ltr"><div style>Hey Dan,</div><div style>That didn&#39;t work o=
ut. I thought that was what I used once =A0before too.</div><div style><br>=
</div><div style>The best way to describe what I&#39;m trying to do is simi=
lar to a magnifying glass.</div>
<div style>Think of 2 Layers.</div><div style>1. Magnifying glass layer</di=
v><div style>2. Adjustment layer - this has the effect magnify.</div><div s=
tyle><br></div><div style>I want the magnify center effect point to follow =
position and rotation of 1. Magnifying Glass layer Which also has it&#39;s =
anchor point moved to the handle so it pivots at that point.</div>
<div style>Adding=A0<span style=3D"font-family:&#39;Lucida Grande&#39;;font=
-size:11px"><b>thisComp.layer(&quot;<a href=3D"http://magnifying_glass.ai">=
magnifying_glass.ai</a>&quot;).transform.position</b>=A0</span>to the effec=
t center point works great except it&#39;s center is aligned with the ancho=
r of 1. Magnifying glass layer.</div>
<div style><br></div><div style>I need to offset this to the center of the =
glass. I&#39;ve tried compCoords =3D [960,540]; and=A0layerCoords =3D [200,=
450];,=A0I&#39;ve tried pre-comping, parenting, re-parenting to nulls, but =
it always breaks.</div>
<div dir=3D"ltr"><br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr"><div=
 style=3D"color:rgb(0,0,128);font-family:&#39;Gill Sans&#39;,Tahoma,Arial,h=
elvetica;font-size:11px;background-color:rgb(252,252,252)"><b>From:</b>=A0<=
a title=3D"bassett.doug@gmail.com" href=3D"mailto:bassett.doug@gmail.com" t=
arget=3D"_blank" style=3D"color:rgb(0,0,139);text-decoration:none">D</a>an<=
/div>
<div style=3D"color:rgb(0,0,128);font-family:&#39;Gill Sans&#39;,Tahoma,Ari=
al,helvetica;font-size:11px;background-color:rgb(252,252,252)"><b>Sent:</b>=
=A0Thursday, August 01, 2013 12:43 PM</div><div style=3D"color:rgb(0,0,128)=
;font-family:&#39;Gill Sans&#39;,Tahoma,Arial,helvetica;font-size:11px;back=
ground-color:rgb(252,252,252)">
<b>Subject:</b>=A0[AE] Expression/Effect center</div><table width=3D"100%" =
border=3D"0" cellspacing=3D"0" cellpadding=3D"0" bgcolor=3D"#fcfcfc" style=
=3D"font-family:&#39;Gill Sans&#39;,Tahoma,Arial,helvetica;table-layout:fix=
ed"><tbody><tr>
<td style=3D"font-family:&#39;Gill Sans&#39;,Tahoma,Arial,helvetica;font-si=
ze:8pt;color:rgb(0,0,128);vertical-align:top;padding-left:8px"><div dir=3D"=
ltr"><div>nstead of +value, try appending=A0 .valueAtTime(0) to what you go=
t from the pick whip.</div>
<div>=A0</div><div>Dan</div><div><div><div>=A0</div><div><div><b>From:</b>=
=A0<a title=3D"bassett.doug@gmail.com" href=3D"mailto:bassett.doug@gmail.co=
m" target=3D"_blank" style=3D"color:rgb(0,0,139);text-decoration:none">Doug=
</a></div><div>
<b>Sent:</b>=A0Thursday, August 01, 2013 12:43 PM</div><div><b>Subject:</b>=
=A0[AE] Expression/Effect center</div></div></div><div>=A0</div></div><div>=
<div dir=3D"ltr"><div>I have an effect center point on and adjustment layer=
 pick whipped to another layers position.</div>
<div>It works fine, but I need it to retain it&#39;s original position and =
not move to the anchor point because I&#39;m using rotation. I thought I co=
uld just do +value at the end, but no luck.</div><div>=A0</div><div><p>this=
Comp.layer(&quot;<a href=3D"http://media-motion.tv:8100/Redirect/glass.ai" =
target=3D"_blank" style=3D"color:rgb(0,0,139);text-decoration:none">glass.a=
i</a>&quot;).transform.position</p>
</div></div></div></div></td></tr></tbody></table></div>
</div>

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