[Dan Ebberts]

Wiggle creates an array of the same dimensions as the property it’s applied to. So for your first question, you’d want to do something like this:

w = wiggle(0.5,200);
[value[0],value[1],w[2]]

Your second one would be like this:

temp = wiggle(10,50);
[temp[0],temp[0]]

Dan

[Dan Ebberts]

Not sure if this is what you mean, but give it a try:

degPerSec = 10; //degrees per second
degPerSec*time;

Dan

[Dan Ebberts]

The easiest way is to probably just use the pick whip, but you’ve almost got it, it’s like this:

s = comp(“your comp name goes here”).layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”);
scale + [s,s]

Dan

[Dan Ebberts]

I’d start with something like:

wiggle(.05,200)

and adjust it from there. You might also want to add something similar to the orientation property:

wiggle(.05,10)

You can apply a expression to a bunch of layers at once by Edit > Copy Expression Only then select all the other layers and paste.

Dan

[Dan Ebberts]

Good suggestion. I’ve seen it done that way too, where what you’re after isn’t necessarily the bounding box – you just want to highlight the text. In the case I’m familiar with, the client actually created a duplicate font, where the characters were the same width as those in the normal font, but they were solid rectangular blocks.

As I recall, there was a trick to get the seams between the letters to not be visible – might have been putting the highlight layer into draft quality to kill the anti-aliasing.

Dan

[Dan Ebberts]

Unfortunately, expressions (and scripts) don’t have access to the bounding box info. If you need it bad enough, it’s possible to build a table of character widths (by analyzing the font glyphs) that you can use to get pretty close by having the expression add up the widths of all the characters in the text layer. It’s a pain, but it can work.

Dan

[Dan Ebberts]

Hey – I’ts always great fun to use dot() and cross() in the same expression. Maybe I need to get out more. 8^)

Dan

[Dan Ebberts]

Lloyd,

Would the layers need to end up in the same slots? I mean, if you selected layers 3,6,7, and 9, would the sorted layers need to be in those slots?

Dan

[Dan Ebberts]

OK – here’s my entry 8^>. It seems to work for all conditions I can think of. The key setup variables are cw (true if rotating clockwise) and uv ([0,-1] if radar line starts out pointing up, [0,1] if down, [1,0] if right, [-1,0] if left).

fadeAngle = 90;
maxOpacity = 100;
minOpacity = 0;
cw = false; // true if clockwise rotation, false if ccw
uv = [0,-1]; // unit vector representing initial orientation of radar line

line = thisComp.layer(“RadarLine”);
v = normalize(position – line.position);
u = line.toWorldVec(uv);
d = cross(v,u)[2] > 0;
angle = radiansToDegrees(Math.acos(dot(v,u)));
if ((cw && d) || (!cw && !d)) linear(angle,0,fadeAngle,maxOpacity,minOpacity) else minOpacity

Dan

[Dan Ebberts]

An opacity expression like this might do it:

r = thisComp.layer(“niddle”).rotation;
if (r < 105){ 0 }else{ ease(r,105,116,100,0) } Dan