[Andrei Popa]

The correct path would be
$.evalFile("/Users/Dave/Desktop/RealEstate/roomnames.txt");

Andrei

[Andrei Popa]

Here is a “crash course” for the sourceRectAtTime(time, false) function. In the picture you see the values it has for top, left, height and width. What you must remember is that while the anchor point is below the top of the layer the “top” value is negative. Also, if the anchor point is to the right of the left extremity, the left value is negative. You always have negative values for this variables while inside the rectangle. The x position is where the anchor is at its [0,0](where the anchor point is before you do any transformation to it). So for you to move it around, you only have to do some basic geometry. Here is a pic and also the values of x,y for all the positions you needed them. You can combine them as you like for different results.

//x values
//left
x = thisLayer.sourceRectAtTime(time,false).left;
//right
x = thisLayer.sourceRectAtTime(time,false).width + thisLayer.sourceRectAtTime(time,false).left;
//mid
x = thisLayer.sourceRectAtTime(time,false).width/2 + thisLayer.sourceRectAtTime(time,false).left;

//y values
//top
y = thisLayer.sourceRectAtTime(time,false).top;
//mid
y = thisLayer.sourceRectAtTime(time,false).height/2 + thisLayer.sourceRectAtTime(time,false).top;
//bottom
y = thisLayer.sourceRectAtTime(time,false).height + thisLayer.sourceRectAtTime(time,false).top;


Andrei

[Andrei Popa]

After Effects expressions have no memory. Each frame they execute your code from zero. Nothing is saved over time except time. But i think that there is some workaround for your problem. You can execute the code for the whole addition each frame. The downside is that if you have a very long composition it will start running slow.

keyFrameVar = thisComp.layer("Black Solid 2").effect("Sound Keys")("Output 3")
frRate =1/ thisComp.frameDuration;
keyFrameSum = 0; //
for (i=1; i

Andrei

[Andrei Popa]

If you want to create some sort of dependencie between frames, i think you should use time. something like
keyFrameVar = thisComp.layer("Black Solid 2").effect("Sound Keys")("Output 3");
frameNumber = time/thisComp.frameDuration;
value + keyFrameVar*frameNumber

this way you multiply keyFrameVar by the number of frames(like adding it for each frame)

Andrei

[Andrei Popa]

Well. Baby steps. So you have a rectangle on a text layer. Then another text layer comes in and you want it to take the size of the new text? If so, you should use an ease function. Something like this

dur = 0.33; //about ten frames, assuming that you are working on a 30 fps project
easeStart = thisComp.layer("secondTextLayer").inPoint;
easeEnd = easeStart + dur;
startValue = [thisComp.layer("firstTextLayer").sourceRectAtTime(time,false).width,thisComp.layer("firstTextLayer").sourceRectAtTime(time,false).height]
endValue = [thisComp.layer("secondTextLayer").sourceRectAtTime(time,false).width,thisComp.layer("secondTextLayer").sourceRectAtTime(time,false).height]
if (time< easeStart) startValue else ease(time,easeStart,easeEnd,startValue,endValue);

this is for 2 layers. If you have many, i would suggest arranging them one after another and using the index in a for loop. If you do have many layers and can’t figure this out, tell me and i will try to find a solution.

Andrei

[Andrei Popa]

The solution for making the anchor point always in the middle is
tempx = thisLayer.sourceRectAtTime(time,false).width/2 + thisLayer.sourceRectAtTime(time,false).left;
tempy = thisLayer.sourceRectAtTime(time,false).height/2 + thisLayer.sourceRectAtTime(time,false).top;
[tempx,tempy]
but you may run into some problems with the position by changing it with expressions. You may have to also alter the position expression.

Andrei

[Andrei Popa]

You could add 2 “Slider Control” controls to this layer. Name them “Cycle duration” and “Expression duration”. The expression then for this would be:
modValue = Math.floor(time%effect("Cycle duration")("Slider"));
if(modValue < effect("Expression duration")("Slider") ){
minAudio = 0;
maxAudio = 100;
minStretch = 100;
maxStretch = 125;
audioLev = thisComp.layer("Audio Amplitude").effect("Both Channels")("Slider");
s = linear(audioLev, minAudio, maxAudio, minStretch, maxStretch);
[s,s,s];
}
else value;
So the time that the layers stays still is “Cycle duration” minus “Expression duration”. Play with this 2 until you get something you like(Expression duration should always be smaller than Cycle duration). If, for example, you set them to be 15 and 9, the layer will scale up and down 9 seconds and then stay still until it reaches 15 seconds, and start moving again. If you add the modValue to the value at the end, you make the layer grow a bit each second.

Andrei

[Andrei Popa]

Is this what you are looking for? Because i don’t quite understand your problem.
y = thisComp.layer("57%").effect("Slider Control")("Slider");
[100, y*57/100]
this will show 0 at 0, and 57 at 100. Replace 57 with anything you want for different result at 100.

Andrei

[Andrei Popa]

You are welcome. Glad i could help.

Andrei

[Andrei Popa]

Try this
time*500+value

Andrei