AoR Estimation Algorithm (SARA)

Least Square optimization of a center of rotation, based on symmetrical centre of rotation estimation, solved with QR-Decomposition.

Attributes

Attribute	Description	Required
name	name of the element	Yes
coordinateSystem		Yes
SignAxis	Axis for defining the sign of the estimated axis. The sign of the estimated axis is determined so that the axis given with this attribut inclose an angle less than 90 Degrees. Only frames of the last calibration trial are used to define a mean sign axis. That's why the markers used to define this axis are only needed for the last calibration trial.	No
ReferencePoint	The point given as formula by this attribut is used to calculate an origin of the estimated axis by projection of this point to the estimated axis.	No
condition	if set to a mathematical formula which  is 1 or 0 it is used instead of defined events scheint noch nicht implementiert zu sein	No
phase	Prefered method to define the frames used for calibration. All frames in phase are used. scheint nicht implementiert zu sein	No

Generated variables

variable name	type	description	model parameter	trial parameter	trajectorie	availability
<name>Origin	Vector3d				X	process phase after calibration
<name>Axis	Vector3d				X	process phase after calibration
<name>SignAxis	Vector3d				X	only for calibrations trials
<name>ReferencePoint	Vector3d				X
<name>Condition	double  (0 or 1)				X
<name>FramesCount	double		X			after calibration (not for trials of the calibration group)
<name>OriginLocal	Vector3d		X			after calibration (not for trials of the calibration group)
<name>AxisLocal	Vector3d		X			after calibration (for trials of the calibration group)
<name>SignAxisLocal	Vector3d		X			after calibration (not for trials of the calibration group)
<name>Radius	double		X
<name>RadiusStd	double		X
<name>MeanPlaneDist	double		X
<name>PlaneDistStd	double		X

Examples

 <AoRSARA name="RGJC"
 condition="RAbdukAngle<30.0"
 coordinateSystem="basis"/>