vtkPlusPivotCalibrationAlgo Class Reference

Pivot calibration algorithm to calibrate a stylus. It determines the pose of the stylus tip relative to the marker attached to the stylus. More...

#include <src/PlusCalibration/vtkPivotCalibrationAlgo/vtkPlusPivotCalibrationAlgo.h>

Inheritance diagram for vtkPlusPivotCalibrationAlgo:

Collaboration diagram for vtkPlusPivotCalibrationAlgo:

Public Types
typedef vtkIGSIOPivotCalibrationAlgo	Superclass

Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
PlusStatus	ReadConfiguration (vtkXMLDataElement *aConfig) override

Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkPlusPivotCalibrationAlgo *	New ()
static vtkPlusPivotCalibrationAlgo *	SafeDownCast (vtkObject *o)

Protected Member Functions
	vtkPlusPivotCalibrationAlgo ()
virtual	~vtkPlusPivotCalibrationAlgo ()

Detailed Description

Pivot calibration algorithm to calibrate a stylus. It determines the pose of the stylus tip relative to the marker attached to the stylus.

The stylus tip position is computed by robust LSQR method, which detects and ignores outliers (that have much larger reprojection error than other points).

The stylus pose is computed assuming that the marker is attached on the center of one of the stylus axes, which is often a good approximation. The axis that points towards the marker is the PivotPoint coordinate system's -Z axis (so that points in front of the stylus have positive Z coordinates in the PivotPoint coordinate system). The X axis of the PivotPoint coordinate system is aligned with the marker coordinate system's X axis (unless the Z axis of the PivotPoint coordinate system is parallel with the marker coordinate system's X axis; in this case the X axis of the PivotPoint coordinate system is aligned with the marker coordinate system's Y axis). The Y axis of the PivotPoint coordinate system is chosen to be the cross product of the Z and X axes.

The method detects outlier points (points that have larger than 3x error than the standard deviation) and ignores them when computing the pivot point coordinates and the calibration error.

Definition at line 37 of file vtkPlusPivotCalibrationAlgo.h.

Member Typedef Documentation

Superclass

typedef vtkIGSIOPivotCalibrationAlgo vtkPlusPivotCalibrationAlgo::Superclass

Definition at line 40 of file vtkPlusPivotCalibrationAlgo.h.

Constructor & Destructor Documentation

vtkPlusPivotCalibrationAlgo()

vtkPlusPivotCalibrationAlgo::vtkPlusPivotCalibrationAlgo ( )

protected

Definition at line 12 of file vtkPlusPivotCalibrationAlgo.cxx.

~vtkPlusPivotCalibrationAlgo()

vtkPlusPivotCalibrationAlgo::~vtkPlusPivotCalibrationAlgo ( )

protectedvirtual

Definition at line 17 of file vtkPlusPivotCalibrationAlgo.cxx.

Member Function Documentation

GetClassName()

virtual const char* vtkPlusPivotCalibrationAlgo::GetClassName ( )

virtual

IsA()

virtual int vtkPlusPivotCalibrationAlgo::IsA ( const char *  type )

virtual

IsTypeOf()

static int vtkPlusPivotCalibrationAlgo::IsTypeOf ( const char *  type )

static

New()

static vtkPlusPivotCalibrationAlgo* vtkPlusPivotCalibrationAlgo::New ( )

static

ReadConfiguration()

PlusStatus vtkPlusPivotCalibrationAlgo::ReadConfiguration ( vtkXMLDataElement *  aConfig )

override

Read configuration

Parameters

aConfig

Root element of the device set configuration

Definition at line 22 of file vtkPlusPivotCalibrationAlgo.cxx.

SafeDownCast()

static vtkPlusPivotCalibrationAlgo* vtkPlusPivotCalibrationAlgo::SafeDownCast ( vtkObject *  o )

static

---

The documentation for this class was generated from the following files:

• src/PlusCalibration/vtkPivotCalibrationAlgo/vtkPlusPivotCalibrationAlgo.h
• src/PlusCalibration/vtkPivotCalibrationAlgo/vtkPlusPivotCalibrationAlgo.cxx