Hi everyone,
I am working on the standing model. In JointsAndDrivers.any I defined
some conditions in order to simulate a knee bending. I wonder if there
is a possibility to drive the rotation (.Axes) of a Segment in
relation to the global reference. I would like to define the rotation
of the pelvis segment in order to simulate different pelvis
inclination angles. Till now I realized the pelvis tilt by defining
the x-value of three segment nodes (.r) in relation to the global
reference .
But this constrains three dof (rotation around x and y, translation in
x) of the pelvis segment in relation to the global reference. I would
like to get rid of the translation in x constraint.
You can easily drive the pelvis rotation in the global reference frame.
This is done in the FreePosture model. You can have a look (in the
JointAndDrivers file) at the PelvisGroundDriver. You can use exactly
the same syntax and set the value of the angle in the Mannequin file.
Best regards,
Sylvain, AnyBody Support
— In anyscript@yahoogroups.com, “peter.belei” <peter@…> wrote:
>
> Hi everyone,
> I am working on the standing model. In JointsAndDrivers.any I defined
> some conditions in order to simulate a knee bending. I wonder if there
> is a possibility to drive the rotation (.Axes) of a Segment in
> relation to the global reference. I would like to define the rotation
> of the pelvis segment in order to simulate different pelvis
> inclination angles. Till now I realized the pelvis tilt by defining
> the x-value of three segment nodes (.r) in relation to the global
> reference .
>
> But this constrains three dof (rotation around x and y, translation in
> x) of the pelvis segment in relation to the global reference. I would
> like to get rid of the translation in x constraint.
>
> Thanks for your help,
> peter
>