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middle null object expression?>

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Jakub Wiśniewski
middle null object expression?>
on Nov 23, 2017 at 6:10:49 am

Hello,
I have two null objects which are trackers.
I need to create 3rd obj which will be exactly in the middle of my trackers.

What should I do?



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Walter Soyka
Re: middle null object expression?>
on Nov 24, 2017 at 4:03:22 pm

You just need the average of the two points. Something like this will work as an expression on the position property of a null layer (modify layer/tracker names as necessary to suit your comp):

p1 = thisComp.layer("TRACK_LAYER").motionTracker("Tracker 1")("Track Point 1").attachPoint;
p2 = thisComp.layer("TRACK_LAYER").motionTracker("Tracker 1")("Track Point 2").attachPoint;

(p1+p2)/2


Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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