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Chock an animated arrow with 3d Stroke

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nico meriotChock an animated arrow with 3d Stroke
by on Jul 29, 2013 at 8:15:41 am


- I have a slightly curved line with animated with 3D Stroke. Basic animation, the line goes from point A, extends until it reaches the point B and then retracts to finish from point A to point B.
- It is animated only through the offset ranging from -100 to 100 in 6 seconds with ease in and out.
- I added an arrow at the front of this animation.
- The arrow leaves the starting point of my stroke, follow the trail, and arrives at the end point at the same time as the beginning of my stroke, which means at about 3.4 seconds (in the ease).

So I copied the mask path of my 3d solid Stroke to apply to the position of my arrow.

My problem is to calibrate my animation, my arrow is not the same speed as my stroke. I tried several ways to settle the animation, with different types of keys, but it is not clean.

The type of speed offset and position, do not animate in the same way.
Does anyone have a solution, or a track?
If you need more explanation, let me know
Well finally, I simplify the file, you can download it here:

thank you

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