Handling continuous rotations (> 180 deg.)
Posted: Mon Oct 29, 2012 6:38 pm
I'm trying to perform motion capture on a small planar double pendulum with a 4 camera setup of s250e cameras. I'm able to make trackables from each of the links of the pendulum and get the data out of the Tracking Tools .csv file just fine.
However, I've noticed that for rotations greater than 180 degrees, tracking tools estimates of the angles will suddenly switch signs. So, when one of the links is swinging past 180, the sign of its angle switches to be -180 and then it begins to become less negative. Similarly, in the other direction, it switches from negative to positive abruptly.
Any thoughts on how I might be able to get an integrated estimate of phase from the data I get out of Tracking Tools?
However, I've noticed that for rotations greater than 180 degrees, tracking tools estimates of the angles will suddenly switch signs. So, when one of the links is swinging past 180, the sign of its angle switches to be -180 and then it begins to become less negative. Similarly, in the other direction, it switches from negative to positive abruptly.
Any thoughts on how I might be able to get an integrated estimate of phase from the data I get out of Tracking Tools?