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After Effects Expressions

manuruch

3 posts
Mar 16, 2012

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How to calculate the 4 corners of a text layer?

Mar 16, 2012 7:11 AM

Tags: #text #coordinates #corner

Hello

I need to know how to translate the size of a text layer to get the coordinate of his corners. My need is to be able , in an automatic way, to give a solid the size of a text. For exemple if i write a longer text, the solid increases his size.

I tried this expression but AE (10.0.1) notified me that the Source's function is not defined.

var r = thisComp.layer("Layer").sourceRectAtTime(0, false);

alert(r.top + " " + r.left + " " + r.width + " " + r.height);

Any idea?

1204 Views 4 Replies Latest reply: manuruch, May 16, 2012 1:06 AM

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1. Mylenium,

Mar 16, 2012 9:02 AM in reply to manuruch

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Yes, it's only available in scripts, not expressions. There is no way for expressions to simply grab the rasterized pixels of a text or shape layers and use them as dimensions. Check AEnhancers, there's some old code floating around that involves sampleImage() to test for extents of such layers.

Mylenium

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3 posts
Mar 16, 2012

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2. manuruch,

Mar 16, 2012 9:13 AM in reply to Mylenium

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Thank you for the response.
I was actually thincking of this sort of solution, reading back the always excellent site od Dan Ebbert's, about Collision detection, based on the sampleImage().
I'll write here the solution i'll found.
Manu

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3. //-- Michel --,

May 15, 2012 1:24 PM in reply to manuruch

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nab has found a solution : http://www.aenhancers.com/viewtopic.php?f=6&t=931

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3 posts
Mar 16, 2012

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4. manuruch,

May 16, 2012 1:06 AM in reply to //-- Michel --

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Thanks a lot for your message. This will be very very usefull for me.
Those guys are incredible.
sandeman
4after.wordpress.com

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