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References: <list-5053842@media-motion.tv>
Date: Sun, 28 Apr 2013 15:43:28 -0500
Message-ID: <CAMMJBERA77Xc_0r0AXJ8bv+a5pvSkK_sqh8_7qmysPC+SwY8kg@mail.gmail.com>
Subject: Re: [AE] Offset along motion path?
From: Brian Behm <flabbyironman@gmail.com>
To: After Effects Mail List <AE-List@media-motion.tv>
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that makes sense. Hadn't thought about driving it through an
expression/slider combo.

Thanks, Dan.

Brian


On Sun, Apr 28, 2013 at 3:38 PM, Dan Ebberts <debberts@comcast.net> wrote:

>   If you paste the path into a Null=92s position, you=92ll get a motion p=
ath
> with a duration of 2 seconds. Then if you have a slider going from 0 to 1=
00
> to represent percentage of travel along the path, you can you use an
> expression like this for your triangle:
>
> s =3D (your slider value);
> thisComp.layer(=93Null 1=94).transform.position.valueAtTime(2*s/100)
>
> Something like that.
>
> Dan
>
>  *From:* Brian Behm <flabbyironman@gmail.com>
> *Sent:* Sunday, April 28, 2013 1:28 PM
> *To:* After Effects Mail List <AE-List@media-motion.tv>
> *Subject:* [AE] Offset along motion path?
>
>  Hey everybody,
>    quick question that's been confounding me. I have a race track
> simulation I'm developing for an info graphic and I have two representati=
ve
> triangles that I want to animate along the path. Because they're going
> different speeds, I want to be able to parent them to the path but not lo=
ck
> them into a specific time so that I can animate the offset along the path=
.
> Sort of like how Trapcode 3D stroke can animate along a portion of the
> path.
>
> I know I can paste motion paths into After Effects, but that doesn't solv=
e
> what I want it to do. Is there a way to constrain motion to a path withou=
t
> constraining it to a specific time?
>
> Brian
>
>
> Brian Behm | Art Director
> Rooster Teeth Productions
> 636 Ralph Ablanedo
> Austin, TX  78748
> office 512-480-0336
> mobile 512-965-7914
>



--=20
not getting enough of my blather?
check out http://flabbyironman.blogspot.com
or my portfolio at http://behmcreative.com

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<div dir=3D"ltr">that makes sense. Hadn&#39;t thought about driving it thro=
ugh an expression/slider combo.=A0<div><br></div><div>Thanks, Dan.=A0</div>=
<div><br></div><div>Brian</div></div><div class=3D"gmail_extra"><br><br><di=
v class=3D"gmail_quote">
On Sun, Apr 28, 2013 at 3:38 PM, Dan Ebberts <span dir=3D"ltr">&lt;<a href=
=3D"mailto:debberts@comcast.net" target=3D"_blank">debberts@comcast.net</a>=
&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0=
 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div dir=3D"ltr">
<div dir=3D"ltr">
<div style=3D"font-size:12pt;font-family:&#39;Calibri&#39;">
<div>If you paste the path into a Null=92s position, you=92ll get a motion =
path with=20
a duration of 2 seconds. Then if you have a slider going from 0 to 100 to=
=20
represent percentage of travel along the path, you can you use an expressio=
n=20
like this for your triangle:</div>
<div>=A0</div>
<div>s =3D (your slider value);</div>
<div>thisComp.layer(=93Null 1=94).transform.position.valueAtTime(2*s/100)</=
div>
<div>=A0</div>
<div>Something like that.</div>
<div>=A0</div>
<div>Dan</div>
<div style=3D"font-style:normal;font-size:small;display:inline;text-decorat=
ion:none;font-family:&#39;Calibri&#39;;font-weight:normal">
<div style=3D"FONT:10pt tahoma">
<div>=A0</div>
<div style=3D"BACKGROUND:#f5f5f5">
<div><b>From:</b> <a title=3D"flabbyironman@gmail.com" href=3D"mailto:flabb=
yironman@gmail.com" target=3D"_blank">Brian Behm</a> </div>
<div><b>Sent:</b> Sunday, April 28, 2013 1:28 PM</div>
<div><b>To:</b> <a title=3D"AE-List@media-motion.tv" href=3D"mailto:AE-List=
@media-motion.tv" target=3D"_blank">After Effects Mail List</a> </div>
<div><b>Subject:</b> [AE] Offset along motion path?</div></div></div>
<div>=A0</div></div><div><div class=3D"h5">
<div style=3D"font-style:normal;font-size:small;display:inline;text-decorat=
ion:none;font-family:&#39;Calibri&#39;;font-weight:normal">
<div dir=3D"ltr">Hey everybody,=20
<div>=A0=A0 quick question that&#39;s been confounding me. I have a race tr=
ack=20
simulation I&#39;m developing for an info graphic and I have two representa=
tive=20
triangles that I want to animate along the path. Because they&#39;re going =
different=20
speeds, I want to be able to parent them to the path but not lock them into=
 a=20
specific time so that I can animate the offset along the path. Sort of like=
 how=20
Trapcode 3D stroke can animate along a portion of the path. </div>
<div>=A0</div>
<div>I know I can paste motion paths into After Effects, but that doesn&#39=
;t solve=20
what I want it to do. Is there a way to constrain motion to a path without=
=20
constraining it to a specific time? </div>
<div>=A0</div>
<div>Brian<br clear=3D"all">
<div>=A0</div>
<p>Brian Behm | Art Director<br>Rooster Teeth Productions<br>636 Ralph=20
Ablanedo<br>Austin, TX=A0 78748<br>office <a href=3D"tel:512-480-0336" valu=
e=3D"+15124800336" target=3D"_blank">512-480-0336</a><br>mobile=20
<a href=3D"tel:512-965-7914" value=3D"+15129657914" target=3D"_blank">512-9=
65-7914</a></p></div></div></div></div></div></div></div></div>
</blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>not getting =
enough of my blather?<br>check out <a href=3D"http://flabbyironman.blogspot=
.com">http://flabbyironman.blogspot.com</a><br>or my portfolio at <a href=
=3D"http://behmcreative.com">http://behmcreative.com</a><br>

</div>

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