Adding a [x, y, z] value to an [x, y] value

[Dan Ebberts]

Something like this:

a = [100,100];
b = [100,100,100];
a + [b[0],b[1]]

Dan

[Jay Brown]

Thanks for the response Dan!

Sorry I should have fully explained what I’m trying to do. I have a 3D Point controller on a Null and I’m trying to create an expression that works universally for whatever property I add it too. For example the 3D Point values are [25, 50, 100].
If I add it to rotation the value would be [25]. If I add to the scale it the value would be [25, 50]. If I add it too a 3D point the value would be [25, 50, 100] and so on.

This is what I started with:

oSet = thisComp.layer("Controller").effect("Offset")("3D Point");
value + oSet;

Is there a way to tell the property to ignore the extra value?

[Dan Ebberts]

I think this works:


oSet = thisComp.layer("Controller").effect("Offset")("3D Point");
if (value instanceof Array){
if (value.length == 2){
value + [oSet[0],oSet[1]];
}else{
value + oSet;
}
}else{
value + oSet[0];
}


Dan

[Jay Brown]

It works like a charm! You are an absolute legend!

Originally I tried .length and length() on oSet and kept getting errors, I didn’t even think about trying it on the value itself. I finally get now too how the (value instanceof Array) works!

thank you so much,
-Jay