Open CASCADE Technology  7.1.0.beta

# Blend_SurfPointFuncInv Class Referenceabstract

Deferred class for a function used to compute a blending surface between a surface and a curve, using a guide line. This function is used to find a solution on a done point of the curve. More...

`#include <Blend_SurfPointFuncInv.hxx>`

Inheritance diagram for Blend_SurfPointFuncInv:
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## Public Member Functions

Standard_Integer NbVariables () const
Returns 3. More...

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 gp_Pnt &P)=0
Set the Point on which a solution has to be found. 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 3 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 3 variables. Returns in the vector SupBound the greatest values allowed for each of the 3 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. 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 a surface and a curve, using a guide line. This function is used to find a solution on a done point of the curve.

The vector <X> used in Value, Values and Derivatives methods has to be the vector of the parametric coordinates w, U, V where w is the parameter on the guide line, U,V are the parametric coordinates of a point on the partner surface.

## Member Function Documentation

 virtual Standard_Boolean Blend_SurfPointFuncInv::Derivatives ( const math_Vector & X, math_Matrix & D )
pure virtual

returns the values <D> of the derivatives for the variable <X>. Returns True if the computation was done successfully, False otherwise.

Implements math_FunctionSetWithDerivatives.

Implemented in BRepBlend_SurfPointEvolRadInv, and BRepBlend_SurfPointConstRadInv.

 virtual void Blend_SurfPointFuncInv::GetBounds ( math_Vector & InfBound, math_Vector & SupBound ) const
pure virtual

Returns in the vector InfBound the lowest values allowed for each of the 3 variables. Returns in the vector SupBound the greatest values allowed for each of the 3 variables.

Implemented in BRepBlend_SurfPointEvolRadInv, and BRepBlend_SurfPointConstRadInv.

 virtual void Blend_SurfPointFuncInv::GetTolerance ( math_Vector & Tolerance, const Standard_Real Tol ) const
pure virtual

Returns in the vector Tolerance the parametric tolerance for each of the 3 variables; Tol is the tolerance used in 3d space.

Implemented in BRepBlend_SurfPointEvolRadInv, and BRepBlend_SurfPointConstRadInv.

 virtual Standard_Boolean Blend_SurfPointFuncInv::IsSolution ( const math_Vector & Sol, const Standard_Real Tol )
pure virtual

Returns Standard_True if Sol is a zero of the function. Tol is the tolerance used in 3d space.

Implemented in BRepBlend_SurfPointEvolRadInv, and BRepBlend_SurfPointConstRadInv.

 virtual Standard_Integer Blend_SurfPointFuncInv::NbEquations ( ) const
pure virtual

returns the number of equations of the function.

Implements math_FunctionSetWithDerivatives.

Implemented in BRepBlend_SurfPointEvolRadInv, and BRepBlend_SurfPointConstRadInv.

 Standard_Integer Blend_SurfPointFuncInv::NbVariables ( ) const
virtual

Returns 3.

Implements math_FunctionSetWithDerivatives.

 virtual void Blend_SurfPointFuncInv::Set ( const gp_Pnt & P )
pure virtual

Set the Point on which a solution has to be found.

Implemented in BRepBlend_SurfPointEvolRadInv, and BRepBlend_SurfPointConstRadInv.

 virtual Standard_Boolean Blend_SurfPointFuncInv::Value ( const math_Vector & X, math_Vector & F )
pure virtual

computes the values <F> of the Functions for the variable <X>. Returns True if the computation was done successfully, False otherwise.

Implements math_FunctionSetWithDerivatives.

Implemented in BRepBlend_SurfPointEvolRadInv, and BRepBlend_SurfPointConstRadInv.

 virtual Standard_Boolean Blend_SurfPointFuncInv::Values ( const math_Vector & X, math_Vector & F, math_Matrix & D )
pure virtual

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.

Implements math_FunctionSetWithDerivatives.

Implemented in BRepBlend_SurfPointEvolRadInv, and BRepBlend_SurfPointConstRadInv.

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