Custom script -> Adding null then setting parent

Adobe After Effects Expressions

Custom script -> Adding null then setting parent

Posted by Ralph Moreau on September 6, 2021 at 9:18 pm

Hi everyone,

I’m really a hobbyist programmer so bare with me if you can. I’m making a script that basically

adds a null then selects the active layer as the parent. I’m nearly there but it’s just setting the parent . Here is the code:

var comp = app.project.activeItem, props, n, p, idx;

if (comp instanceof CompItem){

props = comp.selectedProperties;

var layNum = comp.selectedLayers[0].index; // number of designated chosesn layer

var selLay = comp.layer(layNum); // actual layer object with the proper index.

var inLay = comp.layer(layNum).inPoint;

var outLay = comp.layer(layNum).outPoint;

var inOutlay = Math.abs(inLay - outLay);

var newNull = comp.layers.addNull([inOutlay]).moveBefore(selLay);

comp.layer(layNum).setParentWithJump(layNum -1);

};

Ralph Moreau replied 4 years, 8 months ago 2 Members · 2 Replies
2 Replies

Dan Ebberts

September 6, 2021 at 10:30 pm

I’m guessing this is close to what you’re looking for:

var comp = app.project.activeItem;
if (comp instanceof CompItem){
	var selLay = comp.selectedLayers[0];
	var inOutlay = selLay.outPoint - selLay.inPoint;
	var newNull = comp.layers.addNull(inOutlay);
	newNull.moveBefore(selLay);
	newNull.startTime = selLay.inPoint;
	newNull.setParentWithJump(selLay);
};

Ralph Moreau
September 7, 2021 at 8:22 pm

Thank you Dan!!

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