GeomGridEval_Circle Class Reference

Efficient batch evaluator for circle grid points. More...

#include <GeomGridEval_Circle.hxx>

Public Member Functions
	GeomGridEval_Circle (const occ::handle< Geom_Circle > &theCircle)
	Constructor with geometry.
	GeomGridEval_Circle (const GeomGridEval_Circle &)=delete
	Non-copyable and non-movable.
GeomGridEval_Circle &	operator= (const GeomGridEval_Circle &)=delete
	GeomGridEval_Circle (GeomGridEval_Circle &&)=delete
GeomGridEval_Circle &	operator= (GeomGridEval_Circle &&)=delete
const occ::handle< Geom_Circle > &	Geometry () const
	Returns the geometry handle.
NCollection_Array1< gp_Pnt >	EvaluateGrid (const NCollection_Array1< double > &theParams) const
	Evaluate all grid points.
NCollection_Array1< GeomGridEval::CurveD1 >	EvaluateGridD1 (const NCollection_Array1< double > &theParams) const
	Evaluate all grid points with first derivative. D1 = R * (-sin(u) * XDir + cos(u) * YDir)
NCollection_Array1< GeomGridEval::CurveD2 >	EvaluateGridD2 (const NCollection_Array1< double > &theParams) const
	Evaluate all grid points with first and second derivatives. D2 = R * (-cos(u) * XDir - sin(u) * YDir) = -P (relative to center)
NCollection_Array1< GeomGridEval::CurveD3 >	EvaluateGridD3 (const NCollection_Array1< double > &theParams) const
	Evaluate all grid points with first, second, and third derivatives. D3 = R * (sin(u) * XDir - cos(u) * YDir) = -D1.
NCollection_Array1< gp_Vec >	EvaluateGridDN (const NCollection_Array1< double > &theParams, int theN) const
	Evaluate Nth derivative at all grid points. Circle has cyclic derivatives with period 4: D1 = R * (-sin(u) * X + cos(u) * Y) D2 = R * (-cos(u) * X - sin(u) * Y) D3 = R * (sin(u) * X - cos(u) * Y) D4 = R * (cos(u) * X + sin(u) * Y) = D0, then repeats.

Detailed Description

Efficient batch evaluator for circle grid points.

Uses analytical formula: P(u) = Center + R * (cos(u) * XDir + sin(u) * YDir)

Usage:

GeomGridEval_Circle anEvaluator(myGeomCircle);
NCollection_Array1<gp_Pnt> aGrid = anEvaluator.EvaluateGrid(myParams);

Constructor & Destructor Documentation

GeomGridEval_Circle() [1/3]

GeomGridEval_Circle::GeomGridEval_Circle ( const occ::handle< Geom_Circle > & theCircle )

inline

Constructor with geometry.

Parameters

theCircle

the circle geometry to evaluate

GeomGridEval_Circle() [2/3]

GeomGridEval_Circle::GeomGridEval_Circle ( const GeomGridEval_Circle & )

delete

Non-copyable and non-movable.

GeomGridEval_Circle() [3/3]

GeomGridEval_Circle::GeomGridEval_Circle ( GeomGridEval_Circle && )

delete

Member Function Documentation

EvaluateGrid()

NCollection_Array1< gp_Pnt > GeomGridEval_Circle::EvaluateGrid

(

const NCollection_Array1< double > &

theParams

)

const

Evaluate all grid points.

Parameters

theParams

array of parameter values (angles in radians)

Returns

array of evaluated points (1-based indexing), or empty array if geometry is null or no parameters

EvaluateGridD1()

NCollection_Array1< GeomGridEval::CurveD1 > GeomGridEval_Circle::EvaluateGridD1

(

const NCollection_Array1< double > &

theParams

)

const

Evaluate all grid points with first derivative. D1 = R * (-sin(u) * XDir + cos(u) * YDir)

Parameters

theParams

array of parameter values

Returns

array of CurveD1 (1-based indexing), or empty array if geometry is null or no parameters

EvaluateGridD2()

NCollection_Array1< GeomGridEval::CurveD2 > GeomGridEval_Circle::EvaluateGridD2

(

const NCollection_Array1< double > &

theParams

)

const

Evaluate all grid points with first and second derivatives. D2 = R * (-cos(u) * XDir - sin(u) * YDir) = -P (relative to center)

Parameters

theParams

array of parameter values

Returns

array of CurveD2 (1-based indexing), or empty array if geometry is null or no parameters

EvaluateGridD3()

NCollection_Array1< GeomGridEval::CurveD3 > GeomGridEval_Circle::EvaluateGridD3

(

const NCollection_Array1< double > &

theParams

)

const

Evaluate all grid points with first, second, and third derivatives. D3 = R * (sin(u) * XDir - cos(u) * YDir) = -D1.

Parameters

theParams

array of parameter values

Returns

array of CurveD3 (1-based indexing), or empty array if geometry is null or no parameters

EvaluateGridDN()

NCollection_Array1< gp_Vec > GeomGridEval_Circle::EvaluateGridDN	(	const NCollection_Array1< double > &	theParams,
		int	theN ) const

Evaluate Nth derivative at all grid points. Circle has cyclic derivatives with period 4: D1 = R * (-sin(u) * X + cos(u) * Y) D2 = R * (-cos(u) * X - sin(u) * Y) D3 = R * (sin(u) * X - cos(u) * Y) D4 = R * (cos(u) * X + sin(u) * Y) = D0, then repeats.

Parameters

theParams	array of parameter values
theN	derivative order (N >= 1)

Returns

array of derivative vectors (1-based indexing), or empty array if geometry is null or no parameters

Geometry()

const occ::handle< Geom_Circle > & GeomGridEval_Circle::Geometry ( ) const

inline

Returns the geometry handle.

operator=() [1/2]

GeomGridEval_Circle & GeomGridEval_Circle::operator= ( const GeomGridEval_Circle & )

delete

operator=() [2/2]

GeomGridEval_Circle & GeomGridEval_Circle::operator= ( GeomGridEval_Circle && )

delete

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

• GeomGridEval_Circle.hxx