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94f71cad33
1. B-spline cache was moved into separated classes: BSplCLib_Cache for 2D and 3D curves and BSplSLib_Cache for surfaces. 2. The cache is used now in corresponding adaptor classes (Geom2dAdaptor_Curve, GeomAdaptor_Curve and GeomAdaptor_Surface) when the curve or surface is a B-spline. 3. Algorithms were changed to use adaptors for B-spline calculations instead of curves or surfaces. 4. Precised calculation of derivatives of surface of revolution is implemented for the points of surface placed on the axis of revolution (Geom_SurfaceOfRevolution.cxx) 5. Small modifications are made to adjust algorithms to new behavior of B-spline calculation. 6. Test cases were modified according to the modern behavior. 7. Changes in BOPAlgo_WireSplitter, BOPTools_AlgoTools, BRepLib_CheckCurveOnSurface and ShapeAnalysis_Wire to use adaptors instead of geometric entities 8. Allow Geom2dAdaptor and GeomAdaptor in case of offset curve to use corresponding adaptor for basis curve Modification of test-cases according to the new behavior.
191 lines
10 KiB
C++
191 lines
10 KiB
C++
// Copyright (c) 2015-... OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _CSLib_Offset_Headerfile
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#define _CSLib_Offset_Headerfile
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#include <gp_Dir.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Pnt2d.hxx>
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#include <gp_Vec.hxx>
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#include <gp_Vec2d.hxx>
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#include <Standard.hxx>
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/** \namespace CSLib_Offset
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* \brief Provides a number of static methods to calculate values and derivatives
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* of an offset curves and surfaces using values and derivatives of
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* a base curve/surface.
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*/
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namespace CSLib_Offset
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{
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/** \brief Calculate value of offset curve in 2D
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* \param[in] theBasePoint point on a base curve
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* \param[in] theBaseDeriv derivative on a base curve
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* \param[in] theOffset size of offset
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* \param[in] theIsDirectionChange shows that it is necessary to consider the direction of derivative (not used)
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* \param[out] theResPoint point on offset curve
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*/
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Standard_EXPORT void D0(const gp_Pnt2d& theBasePoint,
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const gp_Vec2d& theBaseDeriv,
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Standard_Real theOffset,
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Standard_Boolean theIsDirectionChange,
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gp_Pnt2d& theResPoint);
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/** \brief Calculate value of offset curve in 3D
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* \param[in] theBasePoint point on a base curve
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* \param[in] theBaseDeriv derivative on a base curve
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* \param[in] theOffsetDirection direction of the offset
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* \param[in] theOffsetValue length of the offset
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* \param[in] theIsDirectionChange shows that it is necessary to consider the direction of derivative (not used)
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* \param[out] theResPoint point on offset curve
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*/
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Standard_EXPORT void D0(const gp_Pnt& theBasePoint,
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const gp_Vec& theBaseDeriv,
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const gp_Dir& theOffsetDirection,
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Standard_Real theOffsetValue,
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Standard_Boolean theIsDirectionChange,
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gp_Pnt& theResPoint);
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/** \brief Calculate value and the first derivative of offset curve in 2D
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* \param[in] theBasePoint point on a base curve
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* \param[in] theBaseD1 first derivative on a base curve
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* \param[in] theBaseD2 second derivative on a base curve
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* \param[in] theOffset size of offset
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* \param[in] theIsDirectionChange shows that it is necessary to consider the direction of derivative (not used)
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* \param[out] theResPoint point on offset curve
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* \param[out] theResDeriv derivative on offset curve
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*/
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Standard_EXPORT void D1(const gp_Pnt2d& theBasePoint,
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const gp_Vec2d& theBaseD1,
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const gp_Vec2d& theBaseD2,
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Standard_Real theOffset,
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Standard_Boolean theIsDirectionChange,
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gp_Pnt2d& theResPoint,
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gp_Vec2d& theResDeriv);
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/** \brief Calculate value and the first derivative of offset curve in 3D
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* \param[in] theBasePoint point on a base curve
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* \param[in] theBaseD1 first derivative on a base curve
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* \param[in] theBaseD2 second derivative on a base curve
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* \param[in] theOffsetDirection direction of the offset
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* \param[in] theOffsetValue length of the offset
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* \param[in] theIsDirectionChange shows that it is necessary to consider the direction of derivative (not used)
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* \param[out] theResPoint point on offset curve
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* \param[out] theResDeriv derivative on offset curve
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*/
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Standard_EXPORT void D1(const gp_Pnt& theBasePoint,
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const gp_Vec& theBaseD1,
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const gp_Vec& theBaseD2,
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const gp_Dir& theOffsetDirection,
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Standard_Real theOffsetValue,
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Standard_Boolean theIsDirectionChange,
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gp_Pnt& theResPoint,
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gp_Vec& theResDeriv);
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/** \brief Calculate value and two derivatives of offset curve in 2D
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* \param[in] theBasePoint point on a base curve
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* \param[in] theBaseD1 first derivative on a base curve
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* \param[in] theBaseD2 second derivative on a base curve
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* \param[in] theBaseD3 third derivative on a base curve
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* \param[in] theOffset size of offset
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* \param[in] theIsDirectionChange shows that it is necessary to consider the direction of derivative
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* \param[out] theResPoint point on offset curve
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* \param[out] theResD1 first derivative on offset curve
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* \param[out] theResD2 second derivative on offset curve
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*/
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Standard_EXPORT void D2(const gp_Pnt2d& theBasePoint,
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const gp_Vec2d& theBaseD1,
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const gp_Vec2d& theBaseD2,
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const gp_Vec2d& theBaseD3,
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Standard_Real theOffset,
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Standard_Boolean theIsDirectionChange,
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gp_Pnt2d& theResPoint,
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gp_Vec2d& theResD1,
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gp_Vec2d& theResD2);
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/** \brief Calculate value and two derivatives of offset curve in 3D
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* \param[in] theBasePoint point on a base curve
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* \param[in] theBaseD1 first derivative on a base curve
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* \param[in] theBaseD2 second derivative on a base curve
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* \param[in] theBaseD3 third derivative on a base curve
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* \param[in] theOffsetDirection direction of the offset
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* \param[in] theOffsetValue length of the offset
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* \param[in] theIsDirectionChange shows that it is necessary to consider the direction of derivative
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* \param[out] theResPoint point on offset curve
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* \param[out] theResD1 first derivative on offset curve
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* \param[out] theResD2 second derivative on offset curve
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*/
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Standard_EXPORT void D2(const gp_Pnt& theBasePoint,
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const gp_Vec& theBaseD1,
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const gp_Vec& theBaseD2,
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const gp_Vec& theBaseD3,
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const gp_Dir& theOffsetDirection,
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Standard_Real theOffsetValue,
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Standard_Boolean theIsDirectionChange,
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gp_Pnt& theResPoint,
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gp_Vec& theResD1,
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gp_Vec& theResD2);
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/** \brief Calculate value and three derivatives of offset curve in 2D
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* \param[in] theBasePoint point on a base curve
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* \param[in] theBaseD1 first derivative on a base curve
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* \param[in] theBaseD2 second derivative on a base curve
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* \param[in] theBaseD3 third derivative on a base curve
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* \param[in] theBaseD4 fourth derivative on a base curve
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* \param[in] theOffset size of offset
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* \param[in] theIsDirectionChange shows that it is necessary to consider the direction of derivative
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* \param[out] theResPoint point on offset curve
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* \param[out] theResD1 first derivative on offset curve
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* \param[out] theResD2 second derivative on offset curve
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* \param[out] theResD3 third derivative on offset curve
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*/
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Standard_EXPORT void D3(const gp_Pnt2d& theBasePoint,
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const gp_Vec2d& theBaseD1,
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const gp_Vec2d& theBaseD2,
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const gp_Vec2d& theBaseD3,
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const gp_Vec2d& theBaseD4,
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Standard_Real theOffset,
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Standard_Boolean theIsDirectionChange,
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gp_Pnt2d& theResPoint,
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gp_Vec2d& theResD1,
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gp_Vec2d& theResD2,
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gp_Vec2d& theResD3);
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/** \brief Calculate value and three derivatives of offset curve in 3D
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* \param[in] theBasePoint point on a base curve
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* \param[in] theBaseD1 first derivative on a base curve
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* \param[in] theBaseD2 second derivative on a base curve
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* \param[in] theBaseD3 third derivative on a base curve
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* \param[in] theBaseD4 fourth derivative on a base curve
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* \param[in] theOffsetDirection direction of the offset
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* \param[in] theOffsetValue length of the offset
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* \param[in] theIsDirectionChange shows that it is necessary to consider the direction of derivative
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* \param[out] theResPoint point on offset curve
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* \param[out] theResD1 first derivative on offset curve
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* \param[out] theResD2 second derivative on offset curve
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* \param[out] theResD3 third derivative on offset curve
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*/
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Standard_EXPORT void D3(const gp_Pnt& theBasePoint,
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const gp_Vec& theBaseD1,
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const gp_Vec& theBaseD2,
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const gp_Vec& theBaseD3,
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const gp_Vec& theBaseD4,
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const gp_Dir& theOffsetDirection,
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Standard_Real theOffsetValue,
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Standard_Boolean theIsDirectionChange,
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gp_Pnt& theResPoint,
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gp_Vec& theResD1,
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gp_Vec& theResD2,
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gp_Vec& theResD3);
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}
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#endif // _CSLib_Offset_Headerfile
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