Delete Selected Keyframes via script

[Walter Soyka]

When deleting items from an array, start at the end and work backwards to the beginning; otherwise, the indices change as you go!

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive   |   RenderBreak [blog]   |   Profile [LinkedIn]

[Mark Whitney]

Just so you aren’t re-inventing the wheel, you might want to check out the suite of free scripts at the Redefinery, this one in particular:

// rd_RemoveKeys.jsx
// Copyright (c) 2006-2013 redefinery (Jeffrey R. Almasol). All rights reserved.
// check it: https://www.redefinery.com
//
// Name: rd_RemoveKeys
// Version: 3.0
//
// Description:
// This script displays a palette with controls for removing keyframes from
// the selected layers.

Details of the usage on some of these:

https://www.youtube.com/watch?v=DFHtmmuEpHA&t=52s

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[Sebastian Moreno]

Thank you Mark
I checked the script, I love how he approaches the issue. But there is no selected keys option. That is why I am doing it.

I will try what Walter said, hopefully it will work for all selected keyframes no matter how many properties and layers are selected.

Thanks!!

[Mark Whitney]

Ah dang. Ya, the rd_ script works only on the selected Layers but no option to select just a particular property(s).

Sounds like ya got a very useful script in the works.

[Sebastian Moreno]

Hi Walter
I am stuck.

I tried looping backwards for everything, one by one (all first, or comp and the property and vice-versa) nothing seemed to work. Just forwards and as you said the index changes.
To see If i am doing something wrong I tried removing layers something super basic:

for ( var i = selectedLayers.length ; i != 0 ; i–) {
selectedLayers[i].remove();
}

and also

for ( var i = selectedLayers.length ; i > 0 ; i–) {
selectedLayers[i].remove();
}

This does not work. Is after having a bug ? IT WORKS when operand i =1 and of course it wont remove one of the selected.

any ideas why is this happening when looping backwards.

[Walter Soyka]

selectedLayers is an array with an origin of zero. If selectedLayers.length = 3, then the only valid indices are selectedLayers[0], selectedLayers[1] and selectedLayers[2]. That means the starting value and the test in your loops are both off by one.

Try this:

app.beginUndoGroup("Remove selected layers");

selectedLayers = app.project.activeItem.selectedLayers;
for (var i = selectedLayers.length - 1 ; i >= 0 ; i--) {
selectedLayers[i].remove();
}

app.endUndoGroup();

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive   |   RenderBreak [blog]   |   Profile [LinkedIn]

[Sebastian Moreno]

Hi Walter
Thank you so much. That worked wonderfully, Indexes are now doing good. Still after I delete the key-frames of a property the selection is lost.

for (var x = selectedLayers.length – 1; x >= 0; x–) {

var currentLayer = selectedLayers[x];
var SelectedProp = currentLayer.selectedProperties;

for (var i = SelectedProp.length – 1; i >= 0; i–) {

var currentProp = SelectedProp[i];
var keySelection = currentProp.selectedKeys;

for (var k = keySelection.length – 1; k >= 0; k–) {

currentProp.removeKey(keySelection[k]);
}
}
}

Any ideas what may be the issue