How to animate dots as if trailing each other connected by elastic?

[Adam Bennett]

If I understand you correctly you might try shifting the position keyframes of the 4 dots back so they’re all staggered, then adjust the easy-ease handles to get the desired effect.

Roving keyframes might also help

[Dan Ebberts]

It’s not trivial, but this post by George Polevoy might get you headed in the right direction:

https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=2&postid=382878&archive=T

Dan

[Joe Chao]

At first ,I had the same idea with Ghekkomanic.And while I was trying it in AE,Dan Ebberts pointed out an other way.I think it must be the best way to create such effect.However if you do not think so,Ghekkomanic’s idea can work too.This way is easier especially when you were trying to make a simple animation of the dots.Here is the project file I had just made:
https://www.seaair.com.cn/cow/dots.aep
wish to be helpful.

[Joshua Stanley]

I was messing with the code that gerge had posted to create a spring between objects:

// AE expression by George Polevoy

// http://www.creativecow.net

// attaches an object to a “Controller” object with a “spring”

// You need another “Controller” which will drive animation of this one

// parameters

conserveMotion = 0.95; // valid range: 0.5 to 0.995

springResistance = 10; // positive values

prerollTime = 2; // value in seconds. greater values give more precise result

//

fps = 1.0 / this_comp.frame_duration;

if ( prerollTime > time ) prerollTime = time;

dt = this_comp.frame_duration;

frame = time * fps;

integrationTime = time – prerollTime;

s = [0,0];

p = this_comp.layer(“Controller”).position.value_at_time( integrationTime );

i = frame – prerollTime * fps;

for (; i < frame; i++, integrationTime += dt ) { c = this_comp.layer("Controller").position.value_at_time( integrationTime ); d = c - p; s = s + d * springResistance; s = s * conserveMotion; p = p + s * dt; } p; When I do it I keep getting the warning "expression must be of dimension 2, not 1. Anyone know what Im doing wrong? Josh

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