The ACCX function returns the x-axis acceleration of one marker or the x-axis relative acceleration between two markers.
Format
Arguments definition
|
Marker1 |
The name or argument number of a marker to be calculated |
|
Marker2 |
The name or argument number of a marker to be calculated •If omitted, then the InertiaMarker is applied. |
|
Marker3 |
The name or argument number of the marker for axis definition •If omitted, then the InertiaMarker is applied. |
|
Marker4 |
A standard marker for calculating acceleration •The formula calculates acceleration relative to the angular velocity and the angular acceleration of Marker4. •Marker4 must be the same value as Marker3. If omitted, then the InertiaMarker is applied. |
Formulation
:
Acceleration vector of Marker1 relative to the angular velocity and angular
acceleration of Marker4
:
Acceleration vector of Marker2 relative to the angular velocity and angular
acceleration of Marker4
:
x-direction unit vector of Marker3
Example
ACCX (body1.Marker1, body2.Marker2)
ACCX (body1.Marker1, body2.Marker2, body3.Marker3)
ACCX (body1.Marker1, body2.Marker2, body3.Marker3, body3.Marker3)
ACCX (1,2,3,3) <Argument (1)body1.Marker1, (2)body2.Marker2, (3)body3.Marker3>