/usr/include/oce/PLib_Base.hxx is in liboce-foundation-dev 0.17.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _PLib_Base_HeaderFile
#define _PLib_Base_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineHandle.hxx>
#include <Handle_PLib_Base.hxx>
#include <MMgt_TShared.hxx>
#include <Standard_Integer.hxx>
#include <Standard_Real.hxx>
class TColStd_Array1OfReal;
//! To work with different polynomial's Bases
class PLib_Base : public MMgt_TShared
{
public:
//! Convert the polynomial P(t) in the canonical base.
Standard_EXPORT virtual void ToCoefficients (const Standard_Integer Dimension, const Standard_Integer Degree, const TColStd_Array1OfReal& CoeffinBase, TColStd_Array1OfReal& Coefficients) const = 0;
//! Compute the values of the basis functions in u
Standard_EXPORT virtual void D0 (const Standard_Real U, TColStd_Array1OfReal& BasisValue) = 0;
//! Compute the values and the derivatives values of
//! the basis functions in u
Standard_EXPORT virtual void D1 (const Standard_Real U, TColStd_Array1OfReal& BasisValue, TColStd_Array1OfReal& BasisD1) = 0;
//! Compute the values and the derivatives values of
//! the basis functions in u
Standard_EXPORT virtual void D2 (const Standard_Real U, TColStd_Array1OfReal& BasisValue, TColStd_Array1OfReal& BasisD1, TColStd_Array1OfReal& BasisD2) = 0;
//! Compute the values and the derivatives values of
//! the basis functions in u
Standard_EXPORT virtual void D3 (const Standard_Real U, TColStd_Array1OfReal& BasisValue, TColStd_Array1OfReal& BasisD1, TColStd_Array1OfReal& BasisD2, TColStd_Array1OfReal& BasisD3) = 0;
//! returns WorkDegree
Standard_EXPORT virtual Standard_Integer WorkDegree() const = 0;
//! Compute NewDegree <= MaxDegree so that MaxError is lower
//! than Tol.
//! MaxError can be greater than Tol if it is not possible
//! to find a NewDegree <= MaxDegree.
//! In this case NewDegree = MaxDegree
Standard_EXPORT virtual void ReduceDegree (const Standard_Integer Dimension, const Standard_Integer MaxDegree, const Standard_Real Tol, Standard_Real& BaseCoeff, Standard_Integer& NewDegree, Standard_Real& MaxError) const = 0;
DEFINE_STANDARD_RTTI(PLib_Base)
protected:
private:
};
#endif // _PLib_Base_HeaderFile
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