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Scripting: Change layer marker attributes
Hi there,
I want to alter attributes of existing layer markers via ExtendedScript. But something like:
app.project.item(50).layer(3).property("Marker").keyValue(1).comment = "New comment!";doesn’t work at all. I mean there’s no error message or something like this. But the actual value won’t change in the UI, and retrieving the value via script with:
$.writeln(app.project.item(50).layer(3).property("Marker").keyValue(1).comment)after assigning a new one is returning the previous (unaltered) value instead. This is weird somehow. The documentation says these attributes on MarkerValue objects are “read” AND “write”. Did I get something wrong?
Thanks,
Peter -
4 Replies
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You have to use .setValueAtTime(), with the time of the marker you want to change and a MarkerValue object to change it to. Try something like this:
app.project.item(50).layer(3).property("Marker").setValueAtTime(app.project.item(50).layer(3).property("Marker").keyTime(1), new MarkerValue("New comment!"));Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn] -
Hi Walter,
many thanks, that did the trick.
This is still a bit weird to me. ????
Peter
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It is a bit weird. The documentation doesn’t make this super-clear, but markers are basically a special kind of keyframe, and keyframe values are set with .setValueAtTime(). Not only that, but markers use a MarkerValue object as their data type, so if you want to change the comment text, you have to do so by creating a MarkerValue object to contain the comment.
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn] -
Hi Walter,
if this is the way to go, so be it. ☺
My way to handle this conveniently:
var ctrl = ....var marker = ctrl.property("Marker").keyValue(1);
var markerTime = ctrl.property("Marker").keyTime(1);marker.label = 1;
marker.comment = "New Comment!"ctrl.property("Marker").setValueAtTime(markerTime, marker);
Thanks again,
Peter
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