GeomGridEval_Curve Class Reference

Unified grid evaluator for any 3D curve. More...

#include <GeomGridEval_Curve.hxx>

Public Types
using	EvaluatorVariant
	Variant type holding all possible curve evaluators.

Public Member Functions
	GeomGridEval_Curve (const Adaptor3d_Curve &theCurve)
	Construct from adaptor reference (auto-detects curve type). For GeomAdaptor_Curve, extracts underlying Geom_Curve for optimized evaluation. For other adaptors, stores reference for fallback evaluation.
	GeomGridEval_Curve (const occ::handle< Geom_Curve > &theCurve)
	Construct from geometry handle (auto-detects curve type).
	GeomGridEval_Curve (const GeomGridEval_Curve &)=delete
	Non-copyable and non-movable.
GeomGridEval_Curve &	operator= (const GeomGridEval_Curve &)=delete
	GeomGridEval_Curve (GeomGridEval_Curve &&)=delete
GeomGridEval_Curve &	operator= (GeomGridEval_Curve &&)=delete
NCollection_Array1< gp_Pnt >	EvaluateGrid (const NCollection_Array1< double > &theParams) const
	Evaluate grid points at all parameters.
NCollection_Array1< GeomGridEval::CurveD1 >	EvaluateGridD1 (const NCollection_Array1< double > &theParams) const
	Evaluate grid points with first derivative.
NCollection_Array1< GeomGridEval::CurveD2 >	EvaluateGridD2 (const NCollection_Array1< double > &theParams) const
	Evaluate grid points with first and second derivatives.
NCollection_Array1< GeomGridEval::CurveD3 >	EvaluateGridD3 (const NCollection_Array1< double > &theParams) const
	Evaluate grid points with first, second, and third derivatives.
NCollection_Array1< gp_Vec >	EvaluateGridDN (const NCollection_Array1< double > &theParams, int theN) const
	Evaluate Nth derivative at all grid points.
GeomAbs_CurveType	GetType () const
	Returns the detected curve type.

Protected Member Functions
void	initialization (const Adaptor3d_Curve &theCurve)
	Initialize from adaptor reference (auto-detects curve type).
void	initialization (const occ::handle< Geom_Curve > &theCurve)
	Initialize from geometry handle (auto-detects curve type).

Detailed Description

Unified grid evaluator for any 3D curve.

Uses std::variant for compile-time type safety and zero heap allocation for the evaluator itself. Automatically detects curve type from Adaptor3d_Curve and dispatches to the appropriate specialized evaluator.

Supported curve types with optimized evaluation:

• Line: Direct analytical formula
• Circle: Trigonometric formula
• Ellipse: Analytical formula
• Hyperbola: Analytical formula
• Parabola: Analytical formula
• BezierCurve: Optimized batch evaluation via BSplCLib
• BSplineCurve: Optimized batch evaluation via BSplCLib_GridEvaluator
• Other: Fallback using Adaptor3d_Curve::D0

Usage:

GeomGridEval_Curve anEval(myAdaptorCurve);
// OR
GeomGridEval_Curve anEval(myGeomCurve);
NCollection_Array1<gp_Pnt> aGrid = anEval.EvaluateGrid(myParams);

Member Typedef Documentation

EvaluatorVariant

using GeomGridEval_Curve::EvaluatorVariant

Initial value:

 std::variant<std::monostate,            
                                        GeomGridEval_Line,         
                                        GeomGridEval_Circle,       
                                        GeomGridEval_Ellipse,      
                                        GeomGridEval_Hyperbola,    
                                        GeomGridEval_Parabola,     
                                        GeomGridEval_BezierCurve,  
                                        GeomGridEval_BSplineCurve, 
                                        GeomGridEval_OffsetCurve,  
                                        GeomGridEval_OtherCurve>

Variant type holding all possible curve evaluators.

Constructor & Destructor Documentation

GeomGridEval_Curve() [1/4]

GeomGridEval_Curve::GeomGridEval_Curve

(

const Adaptor3d_Curve &

theCurve

)

Construct from adaptor reference (auto-detects curve type). For GeomAdaptor_Curve, extracts underlying Geom_Curve for optimized evaluation. For other adaptors, stores reference for fallback evaluation.

Note

The curve adaptor reference must remain valid during the lifetime of this evaluator when using fallback evaluation.

Parameters

[in]

theCurve

curve adaptor reference to evaluate

GeomGridEval_Curve() [2/4]

GeomGridEval_Curve::GeomGridEval_Curve

(

const occ::handle< Geom_Curve > &

theCurve

)

Construct from geometry handle (auto-detects curve type).

Parameters

[in]

theCurve

geometry to evaluate

GeomGridEval_Curve() [3/4]

GeomGridEval_Curve::GeomGridEval_Curve ( const GeomGridEval_Curve & )

delete

Non-copyable and non-movable.

GeomGridEval_Curve() [4/4]

GeomGridEval_Curve::GeomGridEval_Curve ( GeomGridEval_Curve && )

delete

Member Function Documentation

EvaluateGrid()

NCollection_Array1< gp_Pnt > GeomGridEval_Curve::EvaluateGrid

(

const NCollection_Array1< double > &

theParams

)

const

Evaluate grid points at all parameters.

Parameters

theParams

array of parameter values

Returns

array of 3D points (1-based indexing)

EvaluateGridD1()

NCollection_Array1< GeomGridEval::CurveD1 > GeomGridEval_Curve::EvaluateGridD1

(

const NCollection_Array1< double > &

theParams

)

const

Evaluate grid points with first derivative.

Parameters

theParams

array of parameter values

Returns

array of CurveD1 (1-based indexing)

EvaluateGridD2()

NCollection_Array1< GeomGridEval::CurveD2 > GeomGridEval_Curve::EvaluateGridD2

(

const NCollection_Array1< double > &

theParams

)

const

Evaluate grid points with first and second derivatives.

Parameters

theParams

array of parameter values

Returns

array of CurveD2 (1-based indexing)

EvaluateGridD3()

NCollection_Array1< GeomGridEval::CurveD3 > GeomGridEval_Curve::EvaluateGridD3

(

const NCollection_Array1< double > &

theParams

)

const

Evaluate grid points with first, second, and third derivatives.

Parameters

theParams

array of parameter values

Returns

array of CurveD3 (1-based indexing)

EvaluateGridDN()

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

Evaluate Nth derivative at all grid points.

Parameters

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

Returns

array of derivative vectors (1-based indexing)

GetType()

GeomAbs_CurveType GeomGridEval_Curve::GetType ( ) const

inline

Returns the detected curve type.

initialization() [1/2]

void GeomGridEval_Curve::initialization ( const Adaptor3d_Curve & theCurve )

protected

Initialize from adaptor reference (auto-detects curve type).

Parameters

[in]

theCurve

curve adaptor reference to evaluate

initialization() [2/2]

void GeomGridEval_Curve::initialization ( const occ::handle< Geom_Curve > & theCurve )

protected

Initialize from geometry handle (auto-detects curve type).

Parameters

[in]

theCurve

geometry to evaluate

operator=() [1/2]

GeomGridEval_Curve & GeomGridEval_Curve::operator= ( const GeomGridEval_Curve & )

delete

operator=() [2/2]

GeomGridEval_Curve & GeomGridEval_Curve::operator= ( GeomGridEval_Curve && )

delete

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

• GeomGridEval_Curve.hxx