thisComp.layer(slider control).name - how?

Simma · **Joined:** Tue Jun 08, 2010 2:57 pm **Posts:** 89

Probably very easy, but I haven't gotten it to work yet. I have a comp has a null with an slider control and a text layer with the "thisComp.layer(1).name" expression on the source text.

I would like to update the selected layer (1), via the slider control, but it won't let me do this with just parenting.

Tips?

lloydalvarez · **Posted:** Fri Oct 01, 2010 6:50 am

That is not possible via expressions. One workaround way to do it could be to have several layers and have the slider change the opacity of the layers to show and hide them.

-Lloyd

Simma · **Joined:** Tue Jun 08, 2010 2:57 pm **Posts:** 89

Really? So I can't have a slider that changes the (1) value to (2) for example?

Paul Tuersley · **Posted:** Fri Oct 01, 2010 8:38 am

I think this maybe what you're asking for:

Code:

slider = Math.floor(thisComp.layer("Null 1").effect("Slider Control")("Slider")); // ensure slider is an integer
slider = Math.max(1, Math.min(thisComp.numLayers, slider)); // ensure index is valid, clamped between 1 to numLayers
thisComp.layer(slider).name;

lloydalvarez · **Posted:** Fri Oct 01, 2010 9:41 am

Sorry, I misread your question. Paul's solution will work for you.

-Lloyd

Simma · **Joined:** Tue Jun 08, 2010 2:57 pm **Posts:** 89

That worked perfectly! Thank you for taking the time

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thisComp.layer(slider control).name - how?

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