GeomGridEval_BezierSurface Class Reference

Efficient batch evaluator for Bezier surface grid points. More...

#include <GeomGridEval_BezierSurface.hxx>

Public Member Functions
	GeomGridEval_BezierSurface (const occ::handle< Geom_BezierSurface > &theBezier)
	Constructor with geometry.
	GeomGridEval_BezierSurface (const GeomGridEval_BezierSurface &)=delete
	Non-copyable and non-movable.
GeomGridEval_BezierSurface &	operator= (const GeomGridEval_BezierSurface &)=delete
	GeomGridEval_BezierSurface (GeomGridEval_BezierSurface &&)=delete
GeomGridEval_BezierSurface &	operator= (GeomGridEval_BezierSurface &&)=delete
const occ::handle< Geom_BezierSurface > &	Geometry () const
	Returns the geometry handle.
NCollection_Array2< gp_Pnt >	EvaluateGrid (const NCollection_Array1< double > &theUParams, const NCollection_Array1< double > &theVParams) const
	Evaluate all grid points.
NCollection_Array2< GeomGridEval::SurfD1 >	EvaluateGridD1 (const NCollection_Array1< double > &theUParams, const NCollection_Array1< double > &theVParams) const
	Evaluate all grid points with first partial derivatives.
NCollection_Array2< GeomGridEval::SurfD2 >	EvaluateGridD2 (const NCollection_Array1< double > &theUParams, const NCollection_Array1< double > &theVParams) const
	Evaluate all grid points with first and second partial derivatives.
NCollection_Array2< GeomGridEval::SurfD3 >	EvaluateGridD3 (const NCollection_Array1< double > &theUParams, const NCollection_Array1< double > &theVParams) const
	Evaluate all grid points with derivatives up to third order. Uses direct Geom_BezierSurface::D3 evaluation.
NCollection_Array2< gp_Vec >	EvaluateGridDN (const NCollection_Array1< double > &theUParams, const NCollection_Array1< double > &theVParams, int theNU, int theNV) const
	Evaluate partial derivative d^(NU+NV)S/(dU^NU dV^NV) at all grid points. For orders 1-3, reuses EvaluateGridD1/D2/D3. For orders > 3, uses geometry DN method.

Detailed Description

Efficient batch evaluator for Bezier surface grid points.

Uses BSplSLib_Cache for optimized polynomial evaluation. Bezier surfaces are treated as single-span B-spline surfaces.

Usage:

GeomGridEval_BezierSurface anEvaluator(myGeomBezier);
NCollection_Array2<gp_Pnt> aGrid = anEvaluator.EvaluateGrid(myUParams, myVParams);

Constructor & Destructor Documentation

GeomGridEval_BezierSurface() [1/3]

GeomGridEval_BezierSurface::GeomGridEval_BezierSurface ( const occ::handle< Geom_BezierSurface > & theBezier )

inline

Constructor with geometry.

Parameters

theBezier

the bezier surface geometry to evaluate

GeomGridEval_BezierSurface() [2/3]

GeomGridEval_BezierSurface::GeomGridEval_BezierSurface ( const GeomGridEval_BezierSurface & )

delete

Non-copyable and non-movable.

GeomGridEval_BezierSurface() [3/3]

GeomGridEval_BezierSurface::GeomGridEval_BezierSurface ( GeomGridEval_BezierSurface && )

delete

Member Function Documentation

EvaluateGrid()

NCollection_Array2< gp_Pnt > GeomGridEval_BezierSurface::EvaluateGrid	(	const NCollection_Array1< double > &	theUParams,
		const NCollection_Array1< double > &	theVParams ) const

Evaluate all grid points.

Parameters

[in]	theUParams	array of U parameter values
[in]	theVParams	array of V parameter values

Returns

2D array of evaluated points (1-based indexing), or empty array if geometry is null or no parameters set

EvaluateGridD1()

NCollection_Array2< GeomGridEval::SurfD1 > GeomGridEval_BezierSurface::EvaluateGridD1	(	const NCollection_Array1< double > &	theUParams,
		const NCollection_Array1< double > &	theVParams ) const

Evaluate all grid points with first partial derivatives.

Parameters

[in]	theUParams	array of U parameter values
[in]	theVParams	array of V parameter values

Returns

2D array of SurfD1 (1-based indexing), or empty array if geometry is null or no parameters set

EvaluateGridD2()

NCollection_Array2< GeomGridEval::SurfD2 > GeomGridEval_BezierSurface::EvaluateGridD2	(	const NCollection_Array1< double > &	theUParams,
		const NCollection_Array1< double > &	theVParams ) const

Evaluate all grid points with first and second partial derivatives.

Parameters

[in]	theUParams	array of U parameter values
[in]	theVParams	array of V parameter values

Returns

2D array of SurfD2 (1-based indexing), or empty array if geometry is null or no parameters set

EvaluateGridD3()

NCollection_Array2< GeomGridEval::SurfD3 > GeomGridEval_BezierSurface::EvaluateGridD3	(	const NCollection_Array1< double > &	theUParams,
		const NCollection_Array1< double > &	theVParams ) const

Evaluate all grid points with derivatives up to third order. Uses direct Geom_BezierSurface::D3 evaluation.

Parameters

[in]	theUParams	array of U parameter values
[in]	theVParams	array of V parameter values

Returns

2D array of SurfD3 (1-based indexing), or empty array if geometry is null or no parameters set

EvaluateGridDN()

NCollection_Array2< gp_Vec > GeomGridEval_BezierSurface::EvaluateGridDN	(	const NCollection_Array1< double > &	theUParams,
		const NCollection_Array1< double > &	theVParams,
		int	theNU,
		int	theNV ) const

Evaluate partial derivative d^(NU+NV)S/(dU^NU dV^NV) at all grid points. For orders 1-3, reuses EvaluateGridD1/D2/D3. For orders > 3, uses geometry DN method.

Parameters

[in]	theUParams	array of U parameter values
[in]	theVParams	array of V parameter values
[in]	theNU	derivative order in U direction
[in]	theNV	derivative order in V direction

Returns

2D array of derivative vectors (1-based indexing)

Geometry()

const occ::handle< Geom_BezierSurface > & GeomGridEval_BezierSurface::Geometry ( ) const

inline

Returns the geometry handle.

operator=() [1/2]

GeomGridEval_BezierSurface & GeomGridEval_BezierSurface::operator= ( const GeomGridEval_BezierSurface & )

delete

operator=() [2/2]

GeomGridEval_BezierSurface & GeomGridEval_BezierSurface::operator= ( GeomGridEval_BezierSurface && )

delete

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

• GeomGridEval_BezierSurface.hxx