Maintain space between objects

[Dan Ebberts]

I think this works. It assumes that all layers are participating, that they all start at 100%, and that they are arranged left to right, with the left-most being the layer at the top of the layer stack (in the Timeline panel) and the right-most being at the bottom.


accum = 0;
for (i = 1; i <= thisComp.numLayers; i++){
L = thisComp.layer(i);
if (i < index) accum += ( L.transform.scale[0]/100 - 1)*L.width/2
if (i > index) accum += ( 1 - L.transform.scale[0]/100)*L.width/2
}

value + [accum,0]


Dan

[Trent Diggity]

Hey Dan,
Thanks a ton. It seems to be working for the most part but a few layers are giving me some issues, im gonna try trouble shooting in a bit. I’ll let you know how it turns out.

[Trent Diggity]

anyway to get the expression to ignore some layers?

[Dan Ebberts]

Sure. There are lots of ways. If the layers of interest are contiguous numbers, you can just limit the search to that range. If there are layers sprinkled throughout the stack that you want to ignore you can check for them specifically in the loop and skip them.

Dan

[Riccardo Sinti]

I’ve applied this expression to my stack of layers. They are all bunched up at the cent of the comp but I want them to start from the left. Any way to justify this line of boxes either left or right?
Thanks

Thank You

[Dan Ebberts]

This should line everything up with the left edge of the comp:

x = 0;
for (i = 1; i < index; i++){
L = thisComp.layer(i);
x += (L.transform.scale[0]/100)*L.width;
}
x += (transform.scale[0]/100)*width/2;
[x,value[1]]

Dan

[Riccardo Sinti]

Thanks for this expression. How would I adjust the space between layers though? After applying this expression my layers started to overlap when I wish to have a little space between each one.
Thanks Again!

Thank You

[Dan Ebberts]

This should work:


x = 0;
gap = 10;
for (i = 1; i < index; i++){
L = thisComp.layer(i);
x += (L.transform.scale[0]/100)*L.width + gap;
}
x += (transform.scale[0]/100)*width/2;
[x,value[1]]


Dan

[Bryan Woods]

Hey Dan, I came across this while working on the script you helped out with for resizing layers based on alpha. I think this is the last piece of the puzzle for me, and I’m trying to figure out how to use this code to align to center and not the left edge. I see x=0 which I understand is 0 on x axis so that is the edge, and adjusting it does shift everything over, however I’m trying to figure out how to get the logos to shift from center. So 1 logo would be center, two logos would be next to each other, three would be one center and one on either side, etc.