OCCT3D OCCT 8.0.1
OCCT documentation

Search guides and API reference

Enter at least two characters.

    Open CASCADE Technology Reference Manual 8.0.1
    GeomFill_TrihedronLaw Class Referenceabstract

    To define Trihedron along one Curve. More...

    #include <GeomFill_TrihedronLaw.hxx>

    Inheritance diagram for GeomFill_TrihedronLaw:

    Public Member Functions

    virtual bool SetCurve (const occ::handle< Adaptor3d_Curve > &C)
     initialize curve of trihedron law
    virtual occ::handle< GeomFill_TrihedronLawCopy () const =0
    virtual GeomFill_PipeError ErrorStatus () const
     Give a status to the Law Returns PipeOk (default implementation).
    virtual bool D0 (const double Param, gp_Vec &Tangent, gp_Vec &Normal, gp_Vec &BiNormal)=0
     compute Triedrhon on curve at parameter
    virtual bool D1 (const double Param, gp_Vec &Tangent, gp_Vec &DTangent, gp_Vec &Normal, gp_Vec &DNormal, gp_Vec &BiNormal, gp_Vec &DBiNormal)
     compute Triedrhon and derivative Trihedron on curve at parameter Warning : It used only for C1 or C2 approximation
    virtual bool D2 (const double Param, gp_Vec &Tangent, gp_Vec &DTangent, gp_Vec &D2Tangent, gp_Vec &Normal, gp_Vec &DNormal, gp_Vec &D2Normal, gp_Vec &BiNormal, gp_Vec &DBiNormal, gp_Vec &D2BiNormal)
     compute Trihedron on curve first and second derivatives. Warning : It used only for C2 approximation
    virtual int NbIntervals (const GeomAbs_Shape S) const =0
     Returns the number of intervals for continuity . May be one if Continuity(me) >= .
    virtual void Intervals (NCollection_Array1< double > &T, const GeomAbs_Shape S) const =0
     Stores in <T> the parameters bounding the intervals of continuity .
    virtual void SetInterval (const double First, const double Last)
     Sets the bounds of the parametric interval on the function This determines the derivatives in these values if the function is not Cn.
    void GetInterval (double &First, double &Last)
     Gets the bounds of the parametric interval on the function.
    virtual void GetAverageLaw (gp_Vec &ATangent, gp_Vec &ANormal, gp_Vec &ABiNormal)=0
     Get average value of M(t) and V(t) it is useful to make fast approximation of rational surfaces.
    virtual bool IsConstant () const
     Say if the law is Constant.
    virtual bool IsOnlyBy3dCurve () const
     Say if the law is defined, only by the 3d Geometry of the set Curve Return False by Default.
    Public Member Functions inherited from Standard_Transient
     Standard_Transient ()
     Empty constructor.
     Standard_Transient (const Standard_Transient &)
     Copy constructor – does nothing.
    Standard_Transientoperator= (const Standard_Transient &)
     Assignment operator, needed to avoid copying reference counter.
    virtual ~Standard_Transient ()=default
     Destructor must be virtual.
    virtual const opencascade::handle< Standard_Type > & DynamicType () const
     Returns a type descriptor about this object.
    bool IsInstance (const opencascade::handle< Standard_Type > &theType) const
     Returns a true value if this is an instance of Type.
    bool IsInstance (const char *const theTypeName) const
     Returns a true value if this is an instance of TypeName.
    bool IsKind (const opencascade::handle< Standard_Type > &theType) const
     Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
    bool IsKind (const char *const theTypeName) const
     Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
    Standard_TransientThis () const
     Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.
    int GetRefCount () const noexcept
     Get the reference counter of this object.
    void IncrementRefCounter () noexcept
     Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.
    int DecrementRefCounter () noexcept
     Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.
    virtual void Delete () const
     Memory deallocator for transient classes.

    Protected Attributes

    occ::handle< Adaptor3d_CurvemyCurve
    occ::handle< Adaptor3d_CurvemyTrimmed

    Additional Inherited Members

    typedef void base_type
     Returns a type descriptor about this object.
    static constexpr const char * get_type_name ()
     Returns a type descriptor about this object.
    static const opencascade::handle< Standard_Type > & get_type_descriptor ()
     Returns type descriptor of Standard_Transient class.

    Detailed Description

    To define Trihedron along one Curve.

    Member Function Documentation

    ◆ Copy()

    ◆ D0()

    virtual bool GeomFill_TrihedronLaw::D0 ( const double Param,
    gp_Vec & Tangent,
    gp_Vec & Normal,
    gp_Vec & BiNormal )
    pure virtual

    ◆ D1()

    virtual bool GeomFill_TrihedronLaw::D1 ( const double Param,
    gp_Vec & Tangent,
    gp_Vec & DTangent,
    gp_Vec & Normal,
    gp_Vec & DNormal,
    gp_Vec & BiNormal,
    gp_Vec & DBiNormal )
    virtual

    compute Triedrhon and derivative Trihedron on curve at parameter Warning : It used only for C1 or C2 approximation

    Reimplemented in GeomFill_ConstantBiNormal, GeomFill_CorrectedFrenet, GeomFill_Darboux, GeomFill_DiscreteTrihedron, GeomFill_DraftTrihedron, GeomFill_Fixed, GeomFill_Frenet, GeomFill_GuideTrihedronAC, and GeomFill_GuideTrihedronPlan.

    ◆ D2()

    virtual bool GeomFill_TrihedronLaw::D2 ( const double Param,
    gp_Vec & Tangent,
    gp_Vec & DTangent,
    gp_Vec & D2Tangent,
    gp_Vec & Normal,
    gp_Vec & DNormal,
    gp_Vec & D2Normal,
    gp_Vec & BiNormal,
    gp_Vec & DBiNormal,
    gp_Vec & D2BiNormal )
    virtual

    compute Trihedron on curve first and second derivatives. Warning : It used only for C2 approximation

    Reimplemented in GeomFill_ConstantBiNormal, GeomFill_CorrectedFrenet, GeomFill_Darboux, GeomFill_DiscreteTrihedron, GeomFill_DraftTrihedron, GeomFill_Fixed, GeomFill_Frenet, GeomFill_GuideTrihedronAC, and GeomFill_GuideTrihedronPlan.

    ◆ ErrorStatus()

    virtual GeomFill_PipeError GeomFill_TrihedronLaw::ErrorStatus ( ) const
    virtual

    Give a status to the Law Returns PipeOk (default implementation).

    Reimplemented in GeomFill_GuideTrihedronPlan.

    ◆ GetAverageLaw()

    virtual void GeomFill_TrihedronLaw::GetAverageLaw ( gp_Vec & ATangent,
    gp_Vec & ANormal,
    gp_Vec & ABiNormal )
    pure virtual

    Get average value of M(t) and V(t) it is useful to make fast approximation of rational surfaces.

    Implemented in GeomFill_ConstantBiNormal, GeomFill_CorrectedFrenet, GeomFill_Darboux, GeomFill_DiscreteTrihedron, GeomFill_DraftTrihedron, GeomFill_Fixed, GeomFill_Frenet, GeomFill_GuideTrihedronAC, and GeomFill_GuideTrihedronPlan.

    ◆ GetInterval()

    void GeomFill_TrihedronLaw::GetInterval ( double & First,
    double & Last )

    Gets the bounds of the parametric interval on the function.

    ◆ Intervals()

    virtual void GeomFill_TrihedronLaw::Intervals ( NCollection_Array1< double > & T,
    const GeomAbs_Shape S ) const
    pure virtual

    Stores in <T> the parameters bounding the intervals of continuity .

    The array must provide enough room to accommodate for the parameters. i.e. T.Length() > NbIntervals()

    Implemented in GeomFill_ConstantBiNormal, GeomFill_CorrectedFrenet, GeomFill_Darboux, GeomFill_DiscreteTrihedron, GeomFill_DraftTrihedron, GeomFill_Fixed, GeomFill_Frenet, GeomFill_GuideTrihedronAC, and GeomFill_GuideTrihedronPlan.

    ◆ IsConstant()

    virtual bool GeomFill_TrihedronLaw::IsConstant ( ) const
    virtual

    ◆ IsOnlyBy3dCurve()

    virtual bool GeomFill_TrihedronLaw::IsOnlyBy3dCurve ( ) const
    virtual

    Say if the law is defined, only by the 3d Geometry of the set Curve Return False by Default.

    Reimplemented in GeomFill_ConstantBiNormal, GeomFill_CorrectedFrenet, GeomFill_Darboux, GeomFill_DiscreteTrihedron, GeomFill_DraftTrihedron, GeomFill_Frenet, GeomFill_GuideTrihedronAC, and GeomFill_GuideTrihedronPlan.

    ◆ NbIntervals()

    virtual int GeomFill_TrihedronLaw::NbIntervals ( const GeomAbs_Shape S) const
    pure virtual

    ◆ SetCurve()

    virtual bool GeomFill_TrihedronLaw::SetCurve ( const occ::handle< Adaptor3d_Curve > & C)
    virtual

    ◆ SetInterval()

    virtual void GeomFill_TrihedronLaw::SetInterval ( const double First,
    const double Last )
    virtual

    Sets the bounds of the parametric interval on the function This determines the derivatives in these values if the function is not Cn.

    Reimplemented in GeomFill_CorrectedFrenet, GeomFill_GuideTrihedronAC, and GeomFill_GuideTrihedronPlan.

    Field Documentation

    ◆ myCurve

    occ::handle<Adaptor3d_Curve> GeomFill_TrihedronLaw::myCurve
    protected

    ◆ myTrimmed

    occ::handle<Adaptor3d_Curve> GeomFill_TrihedronLaw::myTrimmed
    protected

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