EIC code displayed by LXR master/​include/​opencascade/​Blend_RstRstFunction.hxx	Source navigation Diff markup Identifier search General search
	Version: master test Revert   Change

File indexing completed on 2025-01-18 10:03:01

 // Created by: Jacques  GOUSSARD Author:    Laurent    BOURESCHE --
 // Copyright (c) 1997-1999 Matra Datavision
 // Copyright (c) 1999-2014 OPEN CASCADE SAS
 //
 // This file is part of Open CASCADE Technology software library.
 //
 // This library is free software; you can redistribute it and/or modify it under
 // the terms of the GNU Lesser General Public License version 2.1 as published
 // by the Free Software Foundation, with special exception defined in the file
 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
 // distribution for complete text of the license and disclaimer of any warranty.
 //
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
 #ifndef _Blend_RstRstFunction_HeaderFile
 #define _Blend_RstRstFunction_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 
 #include <Blend_AppFunction.hxx>
 #include <math_Vector.hxx>
 #include <Blend_DecrochStatus.hxx>
 #include <TColStd_Array1OfReal.hxx>
 #include <GeomAbs_Shape.hxx>
 #include <TColStd_Array1OfInteger.hxx>
 #include <TColgp_Array1OfPnt.hxx>
 #include <TColgp_Array1OfPnt2d.hxx>
 #include <TColgp_Array1OfVec.hxx>
 #include <TColgp_Array1OfVec2d.hxx>
 class math_Matrix;
 class gp_Pnt;
 class gp_Pnt2d;
 class gp_Vec;
 class gp_Vec2d;
 class Blend_Point;
 
 
 //! Deferred class for a function used to compute a blending
 //! surface between a surface and a pcurve on an other Surface,
 //! using a guide line.
 //! The vector <X> used in Value, Values and Derivatives methods
 //! may be the vector of the parametric coordinates U,V,
 //! W of the extremities of a section on the surface  and
 //! the curve.
 class Blend_RstRstFunction  : public Blend_AppFunction
 {
 public:
 
   DEFINE_STANDARD_ALLOC
 
   
   //! Returns 2 (default value). Can be redefined.
   Standard_EXPORT virtual Standard_Integer NbVariables() const = 0;
   
   //! returns the number of equations of the function.
   Standard_EXPORT virtual Standard_Integer NbEquations() const = 0;
   
   //! computes the values <F> of the Functions for the
   //! variable <X>.
   //! Returns True if the computation was done successfully,
   //! False otherwise.
   Standard_EXPORT virtual Standard_Boolean Value (const math_Vector& X, math_Vector& F) = 0;
   
   //! returns the values <D> of the derivatives for the
   //! variable <X>.
   //! Returns True if the computation was done successfully,
   //! False otherwise.
   Standard_EXPORT virtual Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& D) = 0;
   
   //! returns the values <F> of the functions and the derivatives
   //! <D> for the variable <X>.
   //! Returns True if the computation was done successfully,
   //! False otherwise.
   Standard_EXPORT virtual Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& D) = 0;
   
   //! Sets the value of the parameter along the guide line.
   //! This determines the plane in which the solution has
   //! to be found.
   Standard_EXPORT virtual void Set (const Standard_Real Param) = 0;
   
   //! Sets the bounds of the parametric interval on
   //! the guide line.
   //! This determines the derivatives in these values if the
   //! function is not Cn.
   Standard_EXPORT virtual void Set (const Standard_Real First, const Standard_Real Last) = 0;
   
   //! Returns in the vector Tolerance the parametric tolerance
   //! for each variable;
   //! Tol is the tolerance used in 3d space.
   Standard_EXPORT virtual void GetTolerance (math_Vector& Tolerance, const Standard_Real Tol) const = 0;
   
   //! Returns in the vector InfBound the lowest values allowed
   //! for each variables.
   //! Returns in the vector SupBound the greatest values allowed
   //! for each of the 3 variables.
   Standard_EXPORT virtual void GetBounds (math_Vector& InfBound, math_Vector& SupBound) const = 0;
   
   //! Returns Standard_True if Sol is a zero of the function.
   //! Tol is the tolerance used in 3d space.
   //! The computation is made at the current value of
   //! the parameter on the guide line.
   Standard_EXPORT virtual Standard_Boolean IsSolution (const math_Vector& Sol, const Standard_Real Tol) = 0;
   
   //! Returns   the    minimal  Distance  between   two
   //! extremities of calculated sections.
   Standard_EXPORT Standard_Real GetMinimalDistance() const;
   
   //! Returns the point on the first support.
   Standard_EXPORT const gp_Pnt& Pnt1() const;
   
   //! Returns the point on the seconde support.
   Standard_EXPORT const gp_Pnt& Pnt2() const;
   
   //! Returns the point on the surface.
   Standard_EXPORT virtual const gp_Pnt& PointOnRst1() const = 0;
   
   //! Returns the point on the curve.
   Standard_EXPORT virtual const gp_Pnt& PointOnRst2() const = 0;
   
   //! Returns U,V coordinates of the point on the surface.
   Standard_EXPORT virtual const gp_Pnt2d& Pnt2dOnRst1() const = 0;
   
   //! Returns  U,V coordinates of the point  on the curve on
   //! surface.
   Standard_EXPORT virtual const gp_Pnt2d& Pnt2dOnRst2() const = 0;
   
   //! Returns parameter of the point on the curve.
   Standard_EXPORT virtual Standard_Real ParameterOnRst1() const = 0;
   
   //! Returns parameter of the point on the curve.
   Standard_EXPORT virtual Standard_Real ParameterOnRst2() const = 0;
   
   //! Returns True when it is not possible to compute
   //! the tangent vectors at PointOnS and/or PointOnRst.
   Standard_EXPORT virtual Standard_Boolean IsTangencyPoint() const = 0;
   
   //! Returns the tangent vector at PointOnS, in 3d space.
   Standard_EXPORT virtual const gp_Vec& TangentOnRst1() const = 0;
   
   //! Returns the tangent vector at PointOnS, in the
   //! parametric space of the first surface.
   Standard_EXPORT virtual const gp_Vec2d& Tangent2dOnRst1() const = 0;
   
   //! Returns the tangent vector at PointOnC, in 3d space.
   Standard_EXPORT virtual const gp_Vec& TangentOnRst2() const = 0;
   
   //! Returns the tangent vector at PointOnRst, in the
   //! parametric space of the second surface.
   Standard_EXPORT virtual const gp_Vec2d& Tangent2dOnRst2() const = 0;
   
   //! Enables to implement a  criterion  of  decrochage
   //! specific to the function.
   //! Warning: Can  be  called  without  previous  call  of issolution
   //! but  the  values  calculated can  be  senseless.
   Standard_EXPORT virtual Blend_DecrochStatus Decroch (const math_Vector& Sol, gp_Vec& NRst1, gp_Vec& TgRst1, gp_Vec& NRst2, gp_Vec& TgRst2) const = 0;
   
   //! Returns  if the section is rationnal
   Standard_EXPORT virtual Standard_Boolean IsRational() const = 0;
   
   //! Returns the length of the maximum section
   Standard_EXPORT virtual Standard_Real GetSectionSize() const = 0;
   
   //! Compute the minimal value of weight for each poles
   //! of all sections.
   Standard_EXPORT virtual void GetMinimalWeight (TColStd_Array1OfReal& Weigths) const = 0;
   
   //! Returns  the number  of  intervals for  continuity
   //! <S>. May be one if Continuity(me) >= <S>
   Standard_EXPORT virtual Standard_Integer NbIntervals (const GeomAbs_Shape S) const = 0;
   
   //! Stores in <T> the  parameters bounding the intervals
   //! of continuity <S>.
   //!
   //! The array must provide  enough room to  accommodate
   //! for the parameters. i.e. T.Length() > NbIntervals()
   Standard_EXPORT virtual void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const = 0;
   
   Standard_EXPORT virtual void GetShape (Standard_Integer& NbPoles, Standard_Integer& NbKnots, Standard_Integer& Degree, Standard_Integer& NbPoles2d) = 0;
   
   //! Returns the tolerance to reach in approximation
   //! to respecte
   //! BoundTol error at the Boundary
   //! AngleTol tangent error at the Boundary
   //! SurfTol error inside the surface.
   Standard_EXPORT virtual void GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, math_Vector& Tol3d, math_Vector& Tol1D) const = 0;
   
   Standard_EXPORT virtual void Knots (TColStd_Array1OfReal& TKnots) = 0;
   
   Standard_EXPORT virtual void Mults (TColStd_Array1OfInteger& TMults) = 0;
   
   Standard_EXPORT virtual void Section (const Blend_Point& P, TColgp_Array1OfPnt& Poles, TColgp_Array1OfPnt2d& Poles2d, TColStd_Array1OfReal& Weigths) = 0;
   
   //! Used for the first and last section
   //! The method returns Standard_True if the derivatives
   //! are computed, otherwise it returns Standard_False.
   Standard_EXPORT virtual Standard_Boolean Section (const Blend_Point& P, TColgp_Array1OfPnt& Poles, TColgp_Array1OfVec& DPoles, TColgp_Array1OfPnt2d& Poles2d, TColgp_Array1OfVec2d& DPoles2d, TColStd_Array1OfReal& Weigths, TColStd_Array1OfReal& DWeigths) = 0;
   
   //! Used for the first and last section
   //! The method returns Standard_True if the derivatives
   //! are computed, otherwise it returns Standard_False.
   Standard_EXPORT virtual Standard_Boolean Section (const Blend_Point& P, TColgp_Array1OfPnt& Poles, TColgp_Array1OfVec& DPoles, TColgp_Array1OfVec& D2Poles, TColgp_Array1OfPnt2d& Poles2d, TColgp_Array1OfVec2d& DPoles2d, TColgp_Array1OfVec2d& D2Poles2d, TColStd_Array1OfReal& Weigths, TColStd_Array1OfReal& DWeigths, TColStd_Array1OfReal& D2Weigths) = 0;
 
 
 
 
 protected:
 
 
 
 
 
 private:
 
 
 
 
 
 };
 
 
 
 
 
 
 
 #endif // _Blend_RstRstFunction_HeaderFile

This page was automatically generated by the 2.3.7 LXR engine. The LXR team