Deferred class for a function used to compute a blending surface between two surfaces, using a guide line. The vector <X> used in Value, Values and Derivatives methods has to be the vector of the parametric coordinates U1,V1, U2,V2, of the extremities of a section on the first and second surface. More...
#include <Blend_Function.hxx>
Public Member Functions | |
| Standard_Integer | NbVariables () const override |
| Returns 4. More... | |
| const gp_Pnt & | Pnt1 () const override |
| Returns the point on the first support. More... | |
| const gp_Pnt & | Pnt2 () const override |
| Returns the point on the seconde support. More... | |
| virtual const gp_Pnt & | PointOnS1 () const =0 |
| Returns the point on the first surface, at parameter Sol(1),Sol(2) (Sol is the vector used in the call of IsSolution. More... | |
| virtual const gp_Pnt & | PointOnS2 () const =0 |
| Returns the point on the second surface, at parameter Sol(3),Sol(4) (Sol is the vector used in the call of IsSolution. More... | |
| virtual Standard_Boolean | IsTangencyPoint () const =0 |
| Returns True when it is not possible to compute the tangent vectors at PointOnS1 and/or PointOnS2. More... | |
| virtual const gp_Vec & | TangentOnS1 () const =0 |
| Returns the tangent vector at PointOnS1, in 3d space. More... | |
| virtual const gp_Vec2d & | Tangent2dOnS1 () const =0 |
| Returns the tangent vector at PointOnS1, in the parametric space of the first surface. More... | |
| virtual const gp_Vec & | TangentOnS2 () const =0 |
| Returns the tangent vector at PointOnS2, in 3d space. More... | |
| virtual const gp_Vec2d & | Tangent2dOnS2 () const =0 |
| Returns the tangent vector at PointOnS2, in the parametric space of the second surface. More... | |
| virtual void | Tangent (const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2, gp_Vec &TgFirst, gp_Vec &TgLast, gp_Vec &NormFirst, gp_Vec &NormLast) const =0 |
| Returns the tangent vector at the section, at the beginning and the end of the section, and returns the normal (of the surfaces) at these points. More... | |
| virtual Standard_Boolean | TwistOnS1 () const |
| virtual Standard_Boolean | TwistOnS2 () const |
| virtual void | Section (const Blend_Point &P, TColgp_Array1OfPnt &Poles, TColgp_Array1OfPnt2d &Poles2d, TColStd_Array1OfReal &Weigths) override=0 |
| 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) override |
| Used for the first and last section The method returns Standard_True if the derivatives are computed, otherwise it returns Standard_False. More... | |
 Public Member Functions inherited from Blend_AppFunction | |
| virtual Standard_Integer | NbEquations () const =0 |
| returns the number of equations of the function. More... | |
| virtual Standard_Boolean | Value (const math_Vector &X, math_Vector &F)=0 |
| computes the values <F> of the Functions for the variable <X>. Returns True if the computation was done successfully, False otherwise. More... | |
| virtual Standard_Boolean | Derivatives (const math_Vector &X, math_Matrix &D)=0 |
| returns the values <D> of the derivatives for the variable <X>. Returns True if the computation was done successfully, False otherwise. More... | |
| virtual Standard_Boolean | Values (const math_Vector &X, math_Vector &F, 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. More... | |
| virtual void | Set (const Standard_Real Param)=0 |
| Sets the value of the parameter along the guide line. This determines the plane in which the solution has to be found. More... | |
| virtual void | Set (const Standard_Real First, const Standard_Real Last)=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. More... | |
| virtual void | GetTolerance (math_Vector &Tolerance, const Standard_Real Tol) const =0 |
| Returns in the vector Tolerance the parametric tolerance for each of the 4 variables; Tol is the tolerance used in 3d space. More... | |
| virtual void | GetBounds (math_Vector &InfBound, math_Vector &SupBound) const =0 |
| Returns in the vector InfBound the lowest values allowed for each of the 4 variables. Returns in the vector SupBound the greatest values allowed for each of the 4 variables. More... | |
| virtual Standard_Boolean | IsSolution (const math_Vector &Sol, const Standard_Real Tol)=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. More... | |
| virtual Standard_Real | GetMinimalDistance () const =0 |
| Returns the minimal Distance between two extremities of calculated sections. More... | |
| virtual Standard_Boolean | IsRational () const =0 |
| Returns if the section is rationnal. More... | |
| virtual Standard_Real | GetSectionSize () const =0 |
| Returns the length of the maximum section. More... | |
| virtual void | GetMinimalWeight (TColStd_Array1OfReal &Weigths) const =0 |
| Compute the minimal value of weight for each poles of all sections. More... | |
| virtual Standard_Integer | NbIntervals (const GeomAbs_Shape S) const =0 |
| Returns the number of intervals for continuity | |
| virtual void | Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) const =0 |
| Stores in <T> the parameters bounding the intervals of continuity | |
| virtual void | GetShape (Standard_Integer &NbPoles, Standard_Integer &NbKnots, Standard_Integer &Degree, Standard_Integer &NbPoles2d)=0 |
| virtual void | GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, math_Vector &Tol3d, math_Vector &Tol1D) const =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. More... | |
| virtual void | Knots (TColStd_Array1OfReal &TKnots)=0 |
| virtual void | Mults (TColStd_Array1OfInteger &TMults)=0 |
| 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. More... | |
| virtual void | Resolution (const Standard_Integer IC2d, const Standard_Real Tol, Standard_Real &TolU, Standard_Real &TolV) const =0 |
| Standard_Real | Parameter (const Blend_Point &P) const |
| Returns the parameter of the point P. Used to impose the parameters in the approximation. More... | |
| Public Member Functions inherited from math_FunctionSet | |
| virtual Standard_Integer | GetStateNumber () |
| Returns the state of the function corresponding to the latestcall of any methods associated with the function. This function is called by each of the algorithms described later which define the function Integer Algorithm::StateNumber(). The algorithm has the responsibility to call this function when it has found a solution (i.e. a root or a minimum) and has to maintain the association between the solution found and this StateNumber. Byu default, this method returns 0 (which means for the algorithm: no state has been saved). It is the responsibility of the programmer to decide if he needs to save the current state of the function and to return an Integer that allows retrieval of the state. More... | |
| virtual | ~math_FunctionSet () |
Detailed Description
Deferred class for a function used to compute a blending surface between two surfaces, using a guide line. The vector <X> used in Value, Values and Derivatives methods has to be the vector of the parametric coordinates U1,V1, U2,V2, of the extremities of a section on the first and second surface.
Member Function Documentation
◆ IsTangencyPoint()
|
pure virtual |
Returns True when it is not possible to compute the tangent vectors at PointOnS1 and/or PointOnS2.
Implemented in BlendFunc_Ruled, BlendFunc_EvolRad, BlendFunc_ConstThroat, BlendFunc_ConstRad, BlendFunc_ChAsym, and BlendFunc_Chamfer.
◆ NbVariables()
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overridevirtual |
Returns 4.
Implements Blend_AppFunction.
◆ Pnt1()
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overridevirtual |
Returns the point on the first support.
Implements Blend_AppFunction.
◆ Pnt2()
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overridevirtual |
Returns the point on the seconde support.
Implements Blend_AppFunction.
◆ PointOnS1()
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pure virtual |
Returns the point on the first surface, at parameter Sol(1),Sol(2) (Sol is the vector used in the call of IsSolution.
Implemented in BlendFunc_Ruled, BlendFunc_EvolRad, BlendFunc_ConstThroat, BlendFunc_ConstRad, BlendFunc_ChAsym, and BlendFunc_Chamfer.
◆ PointOnS2()
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pure virtual |
Returns the point on the second surface, at parameter Sol(3),Sol(4) (Sol is the vector used in the call of IsSolution.
Implemented in BlendFunc_Ruled, BlendFunc_EvolRad, BlendFunc_ConstThroat, BlendFunc_ConstRad, BlendFunc_ChAsym, and BlendFunc_Chamfer.
◆ Section() [1/2]
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overridepure virtual |
Implements Blend_AppFunction.
Implemented in BlendFunc_Ruled, BlendFunc_GenChamfer, BlendFunc_EvolRad, BlendFunc_ConstRad, and BlendFunc_ChAsym.
◆ Section() [2/2]
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overridevirtual |
Used for the first and last section The method returns Standard_True if the derivatives are computed, otherwise it returns Standard_False.
Implements Blend_AppFunction.
Reimplemented in BlendFunc_Ruled, BlendFunc_GenChamfer, BlendFunc_EvolRad, BlendFunc_ConstRad, and BlendFunc_ChAsym.
◆ Tangent()
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pure virtual |
Returns the tangent vector at the section, at the beginning and the end of the section, and returns the normal (of the surfaces) at these points.
Implemented in BlendFunc_Ruled, BlendFunc_EvolRad, BlendFunc_ConstThroat, BlendFunc_ConstRad, BlendFunc_ChAsym, and BlendFunc_Chamfer.
◆ Tangent2dOnS1()
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pure virtual |
Returns the tangent vector at PointOnS1, in the parametric space of the first surface.
Implemented in BlendFunc_Ruled, BlendFunc_EvolRad, BlendFunc_ConstThroatWithPenetration, BlendFunc_ConstThroat, BlendFunc_ConstRad, BlendFunc_ChAsym, and BlendFunc_Chamfer.
◆ Tangent2dOnS2()
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pure virtual |
Returns the tangent vector at PointOnS2, in the parametric space of the second surface.
Implemented in BlendFunc_Ruled, BlendFunc_EvolRad, BlendFunc_ConstThroatWithPenetration, BlendFunc_ConstThroat, BlendFunc_ConstRad, BlendFunc_ChAsym, and BlendFunc_Chamfer.
◆ TangentOnS1()
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pure virtual |
Returns the tangent vector at PointOnS1, in 3d space.
Implemented in BlendFunc_Ruled, BlendFunc_EvolRad, BlendFunc_ConstThroatWithPenetration, BlendFunc_ConstThroat, BlendFunc_ConstRad, BlendFunc_ChAsym, and BlendFunc_Chamfer.
◆ TangentOnS2()
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pure virtual |
Returns the tangent vector at PointOnS2, in 3d space.
Implemented in BlendFunc_Ruled, BlendFunc_EvolRad, BlendFunc_ConstThroatWithPenetration, BlendFunc_ConstThroat, BlendFunc_ConstRad, BlendFunc_ChAsym, and BlendFunc_Chamfer.
◆ TwistOnS1()
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virtual |
Reimplemented in BlendFunc_EvolRad, BlendFunc_ConstRad, and BlendFunc_ChAsym.
◆ TwistOnS2()
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virtual |
Reimplemented in BlendFunc_EvolRad, BlendFunc_ConstRad, and BlendFunc_ChAsym.
The documentation for this class was generated from the following file:
