[Xavier Gomez]

for Color1 opacity:

trigProp = thisComp.layer(“Trigger Color”).timeRemap;
if (trigProp.numKeys<1) value
else (trigProp.value == trigProp.key(1).value) ? 100 : 0;

for Color2 opacity:
trigProp = thisComp.layer(“Trigger Color”).timeRemap;
if (trigProp.numKeys<2) value
else (trigProp.value == trigProp.key(2).value) ? 100 : 0;

Xavier

[Xavier Gomez]

temp = (your expression);
amplification = 1;
100 + amplification * temp;

Xavier

[Xavier Gomez]

var foldernr = cutCompFolder.numItems;
foldernr = (foldernr<10) ? “0”+foldernr.toString() : foldernr.toString();

[Xavier Gomez]

See app.settings in the After Effects scripting guide.

The commands are:
app.settings.haveSetting(sectionName, keyName) // returns a boolean
app.settings.getSetting(sectionName, keyName) // returns a string
app.settings.setSetting(sectionName, keyName, value) // writes a string (value) in the prefs file and returns nothing.

Care, value must be a string and app.settings.getSettings always returns a string.

Xavier

[Xavier Gomez]

Hello,
you can play with the maximumSize.height of your panel (optsRow) as is explained in this thread: https://forums.adobe.com/message/3708111#3708111.

Something like this:
my_palette.grp.cmds.vCheck1.onClick = function ()
{
if (my_palette.grp.cmds.vCheck1.value) my_palette.grp.optsRow.maximumSize.height = 50;
else my_palette.grp.optsRow.maximumSize.height = 0;
my_palette.layout.layout(true);
}
Xavier

[Xavier Gomez]

I dont see how you can get 1% opacity since your expression can only return 0 or 100.
Two things that might happen:
– the alpha at your beam endpoint is never exactly 1, hence your expression always returns 0;
– you are sampling the wrong point (this could come from the point control attached to the null).

I tried this expression on a fake project and it did what it is supposed to do:

target = thisComp.layer(“beam”);
P = thisComp.layer(“beam”).effect(“Beam”)(“Ending Point”);
target.sampleImage(P,[.5,.5],true)[3] * 100;

If it works for you too then you can replace the last line with:
alpha = target.sampleImage(P,[.5,.5],true)[3];
(alpha==1) ? 100 : 0;

Xavier

[Xavier Gomez]

Hello, i haven’t read the full thread but i noticed you mispelled your condition: if (alpha=1) should be if (alpha==1). It might fix it.

By the way the whole last statement can be shortened to:

(alpha==1) ? 100 : 0;

Xavier.

[Xavier Gomez]

toFixed() returns a string, not a number, this is why you get the strange message ‘112 is not a number’.
You can either do parseInt(mainWtheP.toFixed(0)), or more directly Math.round(mainWtheP).

Xavier

[Xavier Gomez]

Hello again, i’m facing another problem.
Just found out that 21 is a dangerous command (!) and better be sure to have focus on the right thing before using it. For instance, running app.executeCommand(21) while the focus is on the project panel will delete all currently selected project items, which is obviously not what was intended.

Is there a way to know that the right composition is opened in the Timeline Panel, and not just selected in the project one ? This to make sure that it’s content will be targetted by delete, not the comp itself.

I’ve read this thread https://forums.creativecow.net/thread/227/23479#24437 which deals with this problem but i don’t fully understand it, and I would like to avoid CS6 only abilities such as setActive(). Unlike in the cited thread i know exactly which comp to focus on but i really can’t find what string to use for app.findMenuCommand(…).

Thank you for advice.

Xavier.

[Xavier Gomez]

Hello,
i don’t think there is anything designed for this within AE but there are some scripts that allow to save and sort expressions. I won’t give you a name because i think there are several (not sure) and i don’t know all of them. Have a look at aescripts.com., category After Effects / Expressions.

Xavier