Reen::ParameterCorrection Class Reference

#include <ApproxSurface.h>

Public Member Functions
virtual void	EnableSmoothing (bool bSmooth=true, double fSmoothInfl=1.0f)
	Use smoothing-terms. More...
virtual Base::Vector3d	GetGravityPoint () const
	Get the center of gravity. More...
virtual void	GetUVW (Base::Vector3d &clU, Base::Vector3d &clV, Base::Vector3d &clW) const
	Returns the u/v/w directions. More...
virtual	Handle (Geom_BSplineSurface) CreateSurface(const TColgp_Array1OfPnt &points
	Calculates a B-spline surface from the given points. More...
	ParameterCorrection (unsigned usUOrder=4, unsigned usVOrder=4, unsigned usUCtrlpoints=6, unsigned usVCtrlpoints=6)
virtual void	SetUV (const Base::Vector3d &clU, const Base::Vector3d &clV, bool bUseDir=true)
	Setting the u/v directions The third parameter specifies whether the directions should actually be used. More...
virtual	~ParameterCorrection ()

Public Attributes
virtual int bool	bParaCor
virtual int bool double	fSizeFactor =0.0f)
virtual int	iIter

Protected Member Functions
virtual void	CalcEigenvectors ()
	Calculates the eigenvectors of the covariance matrix. More...
virtual bool	DoInitialParameterCorrection (double fSizeFactor=0.0f)
	Calculates an initial area at the beginning of the algorithm. More...
virtual void	DoParameterCorrection (int iIter)=0
	Carries out a parameter correction. More...
virtual bool	GetUVParameters (double fSizeFactor)
	Calculates the (u, v) values of the points. More...
void	ProjectControlPointsOnPlane ()
	Projects the control points onto the fit plane. More...
virtual bool	SolveWithoutSmoothing ()=0
	Solves system of equations. More...
virtual bool	SolveWithSmoothing (double fWeight)=0
	Solve a regular system of equations. More...

Constructor & Destructor Documentation

ParameterCorrection()

ParameterCorrection::ParameterCorrection	(	unsigned	usUOrder = 4,
		unsigned	usVOrder = 4,
		unsigned	usUCtrlpoints = 6,
		unsigned	usVCtrlpoints = 6
	)

~ParameterCorrection()

virtual Reen::ParameterCorrection::~ParameterCorrection ( )

virtual

Member Function Documentation

CalcEigenvectors()

void ParameterCorrection::CalcEigenvectors ( )

protectedvirtual

Calculates the eigenvectors of the covariance matrix.

References MeshCore::Approximation::AddPoint(), MeshCore::PlaneFit::Fit(), MeshCore::PlaneFit::GetDirU(), MeshCore::PlaneFit::GetDirV(), and MeshCore::PlaneFit::GetNormal().

Referenced by DoInitialParameterCorrection().

DoInitialParameterCorrection()

bool ParameterCorrection::DoInitialParameterCorrection ( double  fSizeFactor = 0.0f )

protectedvirtual

Calculates an initial area at the beginning of the algorithm.

For this purpose, the best-fit plane for the point cloud is calculated. The points are calculated with respect to the base consisting of the eigenvectors of the covariance matrix and projected onto the best-fit plane. The bounding box is calculated from these points, then the u/v parameters for the points are calculated.

References CalcEigenvectors(), fSizeFactor, GetUVParameters(), SolveWithoutSmoothing(), and SolveWithSmoothing().

DoParameterCorrection()

virtual void Reen::ParameterCorrection::DoParameterCorrection ( int  iIter )

protectedpure virtual

Carries out a parameter correction.

Implemented in Reen::BSplineParameterCorrection.

EnableSmoothing()

void ParameterCorrection::EnableSmoothing ( bool  bSmooth = true, double  fSmoothInfl = 1.0f  )

virtual

Use smoothing-terms.

Reimplemented in Reen::BSplineParameterCorrection.

Referenced by Reen::BSplineParameterCorrection::EnableSmoothing().

GetGravityPoint()

Base::Vector3d ParameterCorrection::GetGravityPoint ( ) const

virtual

Get the center of gravity.

References Base::Vector3< _Precision >::Length().

Referenced by ProjectControlPointsOnPlane().

GetUVParameters()

bool ParameterCorrection::GetUVParameters ( double  fSizeFactor )

protectedvirtual

Calculates the (u, v) values of the points.

References Base::BoundBox2d::Add(), fSizeFactor, Base::BoundBox2d::MaxX, Base::BoundBox2d::MaxY, Base::BoundBox2d::MinX, and Base::BoundBox2d::MinY.

Referenced by DoInitialParameterCorrection().

GetUVW()

void ParameterCorrection::GetUVW ( Base::Vector3d &  clU, Base::Vector3d &  clV, Base::Vector3d &  clW  ) const

virtual

Returns the u/v/w directions.

Handle()

virtual Reen::ParameterCorrection::Handle ( Geom_BSplineSurface  ) const &

virtual

Calculates a B-spline surface from the given points.

Referenced by Reen::BSplineParameterCorrection::DoParameterCorrection().

ProjectControlPointsOnPlane()

void ParameterCorrection::ProjectControlPointsOnPlane ( )

protected

Projects the control points onto the fit plane.

References GetGravityPoint(), Base::Vector3< _Precision >::ProjectToPlane(), Base::Vector3< _Precision >::x, Base::Vector3< _Precision >::y, and Base::Vector3< _Precision >::z.

SetUV()

void ParameterCorrection::SetUV ( const Base::Vector3d &  clU, const Base::Vector3d &  clV, bool  bUseDir = true  )

virtual

Setting the u/v directions The third parameter specifies whether the directions should actually be used.

SolveWithoutSmoothing()

virtual bool Reen::ParameterCorrection::SolveWithoutSmoothing ( )

protectedpure virtual

Solves system of equations.

Implemented in Reen::BSplineParameterCorrection.

Referenced by DoInitialParameterCorrection().

SolveWithSmoothing()

virtual bool Reen::ParameterCorrection::SolveWithSmoothing ( double  fWeight )

protectedpure virtual

Solve a regular system of equations.

Implemented in Reen::BSplineParameterCorrection.

Referenced by DoInitialParameterCorrection().

Member Data Documentation

bParaCor

virtual int bool Reen::ParameterCorrection::bParaCor

fSizeFactor

virtual int bool double Reen::ParameterCorrection::fSizeFactor =0.0f)

Referenced by DoInitialParameterCorrection(), and GetUVParameters().

iIter

virtual int Reen::ParameterCorrection::iIter

Referenced by Reen::BSplineParameterCorrection::DoParameterCorrection().

---

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

• FreeCAD/src/Mod/ReverseEngineering/App/ApproxSurface.h
• FreeCAD/src/Mod/ReverseEngineering/App/ApproxSurface.cpp