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How to make a shape follow a shape path?

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Jason Ke
How to make a shape follow a shape path?
on May 25, 2017 at 8:43:45 pm

Hi there,

I was trying to imitate the following web GIF. I managed to create a moving path which I created a shape path on a shape layer and applied a trim path effect but i got stuck on how to make the circle follow the moving shape path?

My method is:
To create an ellipse shape path on the same shape layer;
copy the moving path and paste it to the position of the ellipse shape;

Here come the problem: everytime I paste the path, the ellipse did follow a path, but it is not on the original track. (there is some offsetting).

I tried to adjust the anchor point and etc, but its hard to do it.

Anyone can help me fix the problem?

Appreciate it!

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Dave LaRonde
Re: How to make a shape follow a shape path?
on May 25, 2017 at 11:21:11 pm
Last Edited By Dave LaRonde on May 27, 2017 at 4:23:24 pm

The problem lies in using shapes. If you re-create the shape on a comp-sized solid, then copy-paste its mask path into the ellipse's Position property, you should be good to go.

Shapes don't work like solids do. Their path coordinates don't have any relation to the coordinates in the comp. On a comp-sized solid, however, a mask path has a 1-to-1 relationship with the comp coordinates.

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

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