[Scott Mcgee]

There is probably a better way of doing this, which if you check out Dan Ebberts…There will be a for loop expression for this.

but something like this would work if you are just using the 6 keyframes like you have in your project.

All you are doing is telling it if you are between certain key frames to do something. Obviously then link your sliders to the bits you need to change, but I’ve just whipped this up quickly.

t1 = key(1).time;
t2 = key(2).time;
t3 = key(3).time;
t4 = key(4).time;
t5 = key(5).time;
t6 = key(6).time;

pos1 = [thisComp.width, thisComp.height/2];
pos2 = [thisComp.width/2, thisComp.height/2];
pos3=pos2;
pos4 = [thisComp.width/3, thisComp.height/2];
pos5 = pos4;
pos6 = pos1;

if(time <= t2){
ease(time,t1,t2,pos1,pos2)
} else if (time > t2 && time < t4){
ease(time,t3,t4,pos3,pos4)
} else {
ease(time,t5,t6,pos5,pos6)
}

[Scott Mcgee]

I have this issue when writing eval functions in After Effects.

wl = loc + city + “/weatherdata” + thisComp.layer(index+num).name.toLowerCase() +”.txt”;
wl += “/”;
$.evalFile(wl);

This is how I use it in after effects. I don’t know if it’s the same in extendscript as I’ve never had the needed to try it.

[Scott Mcgee]

I can’t take credit for this, but this works.

I’ve not been successful in getting this to work with a position expression yet, but I’ve not tried hard enough.

I usually do exponential scaling with a slider:

add a expression slider-control to your layer and rename the slider to “Z”

Give the layer’s scale this expression:

exp = effect(“Z”)(“Slider”);
Math.pow(1.01,exp) * value;

Positive values for the slider => bigger, negative => smaller.
The nice thing about this is that you can ease the keyframes on that slider. Or even add an expression to it etc. (I usually add a smooth).
you can also still use the scale of the value if you need to flip or disproportiantely scale the layer because it get’s mulitplied in.

If you want the 2D-position to also fake perspective (smaller= nearer to the vanishing point), add this expression to position:

exp = effect(“Z”)(“Slider”);

compCenter=[thisComp.width,thisComp.height]/2;

compCenter + Math.pow(1.01,exp) * (value-compCenter);

Note: if your layers are parented, stuff get’s more complicated, so this will probably not look okay then.

[Scott Mcgee]

Not sure how I got this to work, but I’m taking it as a win.

Anyone who might be struggling with this here’s how I got it to work.

input = thisComp.name;

var myArray = [“BL”, “CF”, “LS”];
var myResult = [“Bristol”,”Cardiff”,”Leeds”]

result = null;
for (var i = 1; i <= myArray.length; i++){
if (input.indexOf(myArray[i]) > -1){
result = i;
break;
}
}
myResult[result]

[Scott Mcgee]

For the fact I’m struggling my guessing game is getting better.

val = null;
for ( i = index+1; i <= thisComp.numLayers; i++){
try{
L = thisComp.layer(i)
if(L.transform.opacity == 0) continue;
if(L.transform.opacity == 100){
val = L.transform.position[1] + 40;
}
if(L.transform.position[1] > 600){
val = thisComp.layer(“She 10”).transform.position[1];
}
break;
}catch(err){
}
}
[value[0],val]

If anyone can think of a tidier way, but at least it works now.

[Scott Mcgee]

Well I got it working at least.

val = null;
for ( i = index+1; i <= thisComp.numLayers; i++){
try{
L = thisComp.layer(i)
if(L.transform.opacity == 0) continue;
if(L.transform.opacity == 100){
val = L.transform.position[1] + 40;
}
break;
}catch(err){
}
}
[value[0],val]

Now is there a way if you go over a certain amount of layers it’ll start from the beginning.

Title Layer2
Layer1 Layer3
Layer2 Layer4
Layer3
Layer4 Title
Layer1
Title Layer2
Layer1 Layer3

[Scott Mcgee]

Cheers Dan that works brilliantly.

I was trying to use it in conjunction with referencing my Json file…Someone from IT had pointed out that you can title your keys. So they don’t have to be [0] or [1], you can give them values.

So this works better than what I wanted to use it for. I’ve just posted it up as I could not find anything mentioning about labelling Json’s like this. So I think it’s worth sharing.

{
“bristol”:{
“city”:”BRISTOL”,
“condition1″:”Partly Cloudy”,
“condition2″:”Partly Cloudy”,
“condition3″:”Partly Cloudy”,
“condition4″:”Partly Cloudy”,
“condition5″:”Partly Cloudy”,
“condition6″:”Partly Cloudy”,
“maxtemp1”:6,
“maxtemp2”:8,
“maxtemp3”:8,
“maxtemp4”:8,
“maxtemp5”:8,
“maxtemp6”:8,
“windspeed1”:20,
“windspeed2”:20,
“direction1”:131,
“direction2”:131
},
“bath”:{
“city”:”BATH”,
“condition1″:”Heavy Rain”,
“maxtemp1”:4,
“maxtemp2”:8,
“windspeed1”:20,
“windspeed2”:20,
“direction1”:131,
“direction2”:131
}
}

[Scott Mcgee]

I’d use something like this, if you are just pre embedding the colours. The below allows you to go based on Hex value, just make sure to add 0x at the fron of each one.

I use something similar.

if (slider == 6){
a = 0x974040;
}
else if(slider == 7){
a = 0x498ABB;
}else{
a = 0x8D8D8D;
}

txt = a;
r = txt >> 16;
g = (txt & 0x00ff00) >> 8;
b = txt & 0xff;
[r,g,b,255]/255

[Scott Mcgee]

Sorry my fault, I put width again in the y part. This should work now.

R = sourceRectAtTime();
[R.left + R.width/2,R.top + R.height/2]

[Scott Mcgee]

This should work

R = sourceRectAtTime();
[R.left + R.width/2,R.top + R.width/2]