How to activate KeyframeInterpolationType.HOLD on all Keyframes?

[fabianmoronzirfas]

Hello dear AE Scripting Forum,

I m trying to build a little script that helps me with precomposing. Everything is working fine so far but I can't find a way to convert on the property Time Remap all Keyframes to HoldKeyframes. I've tried it like this:

  var inType = KeyframeInterpolationType.HOLD;

  var outType = KeyframeInterpolationType.HOLD;

      prompt(preCompLayer.property("Time Remap"));

for (var i = 0; i < preCompLayer.property("Zeitverzerrung").numKeys.length; i++){

preCompLayer.property("Zeitverzerrung").numKeys.setInterpolationTypeAtKey(keyIndex, inType, outType);

}

And another question is:

Are the property names localized? In my case. Do i need to use "Time Remap" insted of "Zeitverzerrung"?

Best regards

fabiantheblind

[Paul Tuersley · Accepted solution]

That looks pretty close. I haven't actually checked it works, but something like this:

var holdInt = KeyframeInterpolationType.HOLD;

var property = preCompLayer.property("ADBE Time Remapping");

for (var i = 1; i <= property.numKeys; i++){

     property.setInterpolationTypeAtKey(i, holdInt, holdInt);

}

Use the property matchNames (read using property.matchName) to avoid localization issues, in this case "ADBE Time Remapping".

[fabianmoronzirfas]

Great its working! Thnx a lot.

Here the full script:

// written by fabiantheblind

// based on Andrew Reynolds Sequencer.jsx http://www.videocopilot.net/

// based on Dan Ebberts preCompToLayerDur.jsx http://www.motionscript.com

// with a little help by Paul Tuersley http://forums.adobe.com/people/Paul%20Tuersley

function SequenceAndPrecompose()

{ 

app.beginUndoGroup("Pre-Compose to Layer Duration");

    var curComp = app.project.activeItem;

    if (!curComp || !(curComp instanceof CompItem))

    {

        alert("Please select a Composition.");

        return;

    }

    var offsetFrames = 1;//parseInt(prompt("Number of frames to offset", "1"));

    for (var layerId = 0; layerId < curComp.selectedLayers.length; layerId++)

    {

        var layer = curComp.selectedLayers[layerId];

        layer.startTime = layerId * offsetFrames * curComp.frameDuration;

layer.outPoint = layer.inPoint +1*curComp.frameDuration;

    }

var myLayers = curComp.selectedLayers;

var newInPoint = myLayers[0].inPoint;

      var newOutPoint = myLayers[0].outPoint;

  var newCompName = "comp_";

      var layerName = myLayers[0].name;

      if(layerName.length > 26) {

        layerName = layerName.substring(0, 26);

      }

  newCompName += layerName;

  // "precompose" expects an array of layer indices

  var layerIndices = new Array();

      for (var i = 0; i < myLayers.length; i++) {

        layerIndices[layerIndices.length] = myLayers.index;

        // make sure new comp in point is in point of earliest layer

        // and new comp out point is out point of latest layer

        if (myLayers.inPoint < newInPoint) newInPoint = myLayers.inPoint;

        if (myLayers.outPoint > newOutPoint) newOutPoint = myLayers.outPoint;

      }

  // create the new comp

      var newComp = curComp.layers.precompose(layerIndices, newCompName, true );

      // set in and out points of new comp

      var preCompLayer = curComp.selectedLayers[0];

      preCompLayer.inPoint = newInPoint;

      preCompLayer.outPoint = newOutPoint;

  preCompLayer.timeRemapEnabled = true;

      var holdInt = KeyframeInterpolationType.HOLD;

      var property = preCompLayer.property("ADBE Time Remapping");

      for (var i = 1; i <= property.numKeys; i++){

        property.setInterpolationTypeAtKey(i, holdInt, holdInt);

        }

app.endUndoGroup();

    }

SequenceAndPrecompose();