ACCZ

 

The ACCZ function returns the z-axis acceleration of one marker or the z-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

: z-direction unit vector of Marker3

 

Example

ACCZ (body1.Marker1, body2.Marker2)

ACCZ (body1.Marker1, body2.Marker2, body3.Marker3)

ACCZ (body1.Marker1, body2.Marker2, body3.Marker3, body3.Marker3)

ACCZ (1,2,3,3) <Argument (1)body1.Marker1, (2)body2.Marker2, (3)body3.Marker3>