About local reference

Hello everyone
I want to know some points' acceleration and angular velocity during normal walking. I have drived my model walking by c3d file successully. And tried to using AnyRefNode to fix my problem, but the results r, rdot ,rrdot seems that were calculated in global reference not in local reference and without angular velcity information.
image
image

can everyone tell me how to sovle this problem?
Thanks in advance.
Kind regards,
Felix

Hi @Felix

The angular velocity of a AnyRefNode is the same as the parent obj. In you case probably the segment to which it is attahced. Read more on that and find the transformation equations in the Reference Manual.
Go to Help -> AnyScript Reference and search for the AnyRefNode class.

Best regards,
Bjørn
AnyBody Technology