Separate width and height in scale expression

[Tim West]

Definitely not an expressions expert myself but I believe the info you’re looking for is on here somewhere:
https://www.motionscript.com/

Good luck.

[Bartek Skorupa]

Try this:

—————————————–
n = 0;
t = 0;
if (marker.numKeys > 0){
n = marker.nearestKey(time).index;
if (marker.key(n).time > time) n–;
}
if (n > 0) t = time – marker.key(n).time;

ampX = 15;
ampY = 60;
freq = 5;
decay = 3.0;

angle = freq * 2 * Math.PI * t;
scaleFactX = (100 + ampX * Math.sin(angle) / Math.exp(decay * t)) / 100;
scaleFactY = (100 + ampY * Math.sin(angle) / Math.exp(decay * t)) / 100;

x=value[0] * scaleFactX;
y=value[1] / scaleFactY;

[x,y]
—————————-

You can change values of ampX, and ampY to get the desired results. You can attach them to sliders if you want.

Bartek Skorupa
Warszawa, Poland

[Jonathan Marino]

For those interested in just separating the scale values, similar to Separate X,Y,Z position

Add 3 Slider Control Effects to your Layer
Name them (This is important- they can be any name, but it must match expression):
xScale
yScale
zScale

Then in the scale properties of your layer, add this expression:
x = effect(“xScale”)(“Slider”);
y = effect(“yScale”)(“Slider”);
z = effect(“zScale”)(“Slider”);
[x, y, z]

For 2D layers, simply delete the z properties:

x = effect(“xScale”)(“Slider”);
y = effect(“yScale”)(“Slider”);
[x, y]