force plate data in c3d

[PhoebeHsu]

Dear AnyBody:

I wonder which segment of c3d file is used in AnyBody in calculating internal forces? Specifically, as seen in the attached picture, under ANALOG/PROCCESSED, I see 21 analog channels representing signals in accelerations, forceplate signals, moment and so on; for each channel, there are 10 samples (SUB1 to SUB10). Under FORCE/PROCESSED, there are FP1 and FP2 values (in Newton). Assuming FP1/2 values are derived from ANALOG signals, does AnyBody use FP1/2 directly? If so, can I modify those numbers in AnyBody after importing a c3d file?

Thank you very much!
-Phoebe

[PhoebeHsu]

@PhoebeHsu

Dear AnyBody:

I wonder which segment of c3d file is used in AnyBody in calculating internal forces? Specifically, as seen in the attached picture, under ANALOG/PROCCESSED, I see 21 analog channels representing signals in accelerations, forceplate signals, moment and so on; for each channel, there are 10 samples (SUB1 to SUB10). Under FORCE/PROCESSED, there are FP1 and FP2 values (in Newton). Assuming FP1/2 values are derived from ANALOG signals, does AnyBody use FP1/2 directly? If so, can I modify those numbers in AnyBody after importing a c3d file?

Thank you very much!
-Phoebe

oops, forgot to upload the picture

[aalmunajjed]

Phoebe,
In the environment, you create forceplates using class templates. The definition of the class templates is done in the forceplate files. Depending on which type you use, you include a class template in the beginning of the Main file in the class.any file.

eg:

#include “<ANYBODY_PATH_TOOLBOX>/Mocap/ForcePlateType2AutoDetection.any”

in there you could make edits. Please make a copy before you change anything. Those class templates are not easy to understand at first glance.