DX

 

The DX function returns the x-direction location of one marker or the distance between two markers in relation to a third marker’s x-direction.

 

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 a marker to be calculated

     If omitted, then the InertiaMarker is applied.

 

Formulation

: Position vector of Marker1

: Position vector of Marker2

: x-direction unit vector of Marker3

 

 

Example

DX(body1.Marker1)

DX(body1.Marker1, body2.Marker1)

DX(body1.Marker1, body2.Marker1, body3.Marker1)

DX(1,2,3)  <Argument: (1)body1.Marker1, (2)body2.Marker1, (3)body3.Marker1>