[After Effects] Null object problem :(

[kubaw]

Hello,

I have two null objects which are trackers.

I need to create 3rd object which will be exactly in the middle of my trackers.

What should I do?

[Mylenium · Accepted solution]

Simply apply an expression to calculate the middle.

trackA=motionTracker("Tracker 1")("Track Point 1").featureCenter;

trackB=motionTracker("Tracker 2")("Track Point 1").featureCenter;

trackDiffX=trackA[0]-trackB[0];

trackDiffY=trackA[1]-trackB[1];

X=trackA+trackDiffX;

Y=trackA+trackDiffY;

[X,Y]

Modify in whatever fancy fashion you need.

Mylenium