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Dashed line moves when trimming it

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Stef Prein
Dashed line moves when trimming it
on May 2, 2015 at 11:48:37 am

Hi,

I'm trying to trim a dashed line and animate that. Growing the line works perfectly fine. Just keyframe the End value from 0 to 100. But shrinking it by key framing the Start value from 0 to 100 makes the line move up. Is there a way to solve this?


Thanks in advance!


Stef

Stef Prein
director / motion designer at StudioFets.
Utrecht, The Netherlands
http://www.studiofets.com


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Stef Prein
Re: Dashed line moves when trimming it
on May 2, 2015 at 12:02:20 pm

And something similar happens when I try to let a different dashed line grow. After it has grown, the dashes seem to adjust themselves...

Stef Prein
director / motion designer at StudioFets.
Utrecht, The Netherlands
http://www.studiofets.com


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Dave LaRonde
Re: Dashed line moves when trimming it
on May 2, 2015 at 3:24:51 pm

If you're trying to reveal a dashed line, you may have to use a track matte. Animate a mask on a solid, use the solid as a track matte.
It's probably easier than figuring space between dashes, length of dashes, percentage of stroke completed... you get the idea.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Brian Charles
Re: Dashed line moves when trimming it
on May 2, 2015 at 3:50:20 pm

If you're doing this with a shape layer using trim paths, its likely that the layer's anchor point needs to move.

Scale and other transforms are connected to the anchor point.

Using the pan behind tool to move the anchor point to the beginning of the line should solve the issue.



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