OCCT3D OCCT 8.0.1
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    Open CASCADE Technology Reference Manual 8.0.1
    XCAFDoc_Area Class Reference

    attribute to store area More...

    #include <XCAFDoc_Area.hxx>

    Inheritance diagram for XCAFDoc_Area:

    Public Member Functions

     XCAFDoc_Area ()
    const Standard_GUIDID () const override
     Returns the ID of the attribute.
    void Set (const double vol)
     Sets a value of volume.
    double Get () const
    Standard_OStreamDump (Standard_OStream &anOS) const override
     Dumps the minimum information about <me> on <aStream>.
    void DumpJson (Standard_OStream &theOStream, int theDepth=-1) const override
     Dumps the content of me into the stream.
    Public Member Functions inherited from TDataStd_Real
     TDataStd_Real ()
     SetDimension () is deprecated. Please avoid usage of this method.") 1 void SetDimension( const TDataStd_RealEnum DIM)
     Obsolete method that will be removed in next versions. This field is not supported in the persistence mechanism.
     GetDimension () is deprecated. Please avoid usage of this method.") 1 TDataStd_RealEnum GetDimension() const
     Obsolete method that will be removed in next versions. This field is not supported in the persistence mechanism.
    void Set (const double V)
     Sets the real number V.
    void SetID (const Standard_GUID &guid) override
     Sets the explicit GUID for the attribute.
    void SetID () override
     Sets default GUID for the attribute.
    double Get () const
     Returns the real number value contained in the attribute.
    bool IsCaptured () const
     Returns True if there is a reference on the same label.
    void Restore (const occ::handle< TDF_Attribute > &With) override
     Restores the backuped contents from <anAttribute> into this one. It is used when aborting a transaction.
    occ::handle< TDF_AttributeNewEmpty () const override
     Returns an new empty attribute from the good end type. It is used by the copy algorithm.
    void Paste (const occ::handle< TDF_Attribute > &Into, const occ::handle< TDF_RelocationTable > &RT) const override
     This method is different from the "Copy" one, because it is used when copying an attribute from a source structure into a target structure. This method may paste the contents of <me> into <intoAttribute>.
    Public Member Functions inherited from TDF_Attribute
    const TDF_Label Label () const
     Returns the label to which the attribute is attached. If the label is not included in a DF, the label is null. See Label. Warning: If the label is not included in a data framework, it is null. This function should not be redefined inline.
    int Transaction () const
     Returns the transaction index in which the attribute has been created or modified.
    int UntilTransaction () const
     Returns the upper transaction index until which the attribute is/was valid. This number may vary. A removed attribute validity range is reduced to its transaction index.
    bool IsValid () const
     Returns true if the attribute is valid; i.e. not a backuped or removed one.
    bool IsNew () const
     Returns true if the attribute has no backup.
    bool IsForgotten () const
     Returns true if the attribute forgotten status is set.
    bool IsAttribute (const Standard_GUID &anID) const
     Returns true if it exists an associated attribute of <me> with <anID> as ID.
    bool FindAttribute (const Standard_GUID &anID, occ::handle< TDF_Attribute > &anAttribute) const
     Finds an associated attribute of <me>, according to <anID>. the returned <anAttribute> is a valid one. The method returns True if found, False otherwise. A removed attribute cannot be found using this method.
    template<class T>
    bool FindAttribute (const Standard_GUID &theID, occ::handle< T > &theAttr) const
     Safe variant for arbitrary type of argument.
    void AddAttribute (const occ::handle< TDF_Attribute > &other) const
     Adds an Attribute <other> to the label of <me>. Raises if there is already one of the same GUID than <other>.
    bool ForgetAttribute (const Standard_GUID &aguid) const
     Forgets the Attribute of GUID <aguid> associated to the label of <me>. Be careful that if <me> is the attribute of <guid>, <me> will have a null label after this call. If the attribute doesn't exist returns False. Otherwise returns True.
    void ForgetAllAttributes (const bool clearChildren=true) const
     Forgets all the attributes attached to the label of <me>. Does it on the sub-labels if <clearChildren> is set to true. Of course, this method is compatible with Transaction & Delta mechanisms. Be careful that if <me> will have a null label after this call.
    virtual void AfterAddition ()
     Something to do after adding an Attribute to a label.
    virtual void BeforeRemoval ()
     Something to do before removing an Attribute from a label.
    virtual void BeforeForget ()
     Something to do before forgetting an Attribute to a label.
    virtual void AfterResume ()
     Something to do after resuming an Attribute from a label.
    virtual bool AfterRetrieval (const bool forceIt=false)
     Something to do AFTER creation of an attribute by persistent-transient translation. The returned status says if AfterUndo has been performed (true) or if this callback must be called once again further (false). If <forceIt> is set to true, the method MUST perform and return true. Does nothing by default and returns true.
    virtual bool BeforeUndo (const occ::handle< TDF_AttributeDelta > &anAttDelta, const bool forceIt=false)
     Something to do before applying <anAttDelta>. The returned status says if AfterUndo has been performed (true) or if this callback must be called once again further (false). If <forceIt> is set to true, the method MUST perform and return true. Does nothing by default and returns true.
    virtual bool AfterUndo (const occ::handle< TDF_AttributeDelta > &anAttDelta, const bool forceIt=false)
     Something to do after applying <anAttDelta>. The returned status says if AfterUndo has been performed (true) or if this callback must be called once again further (false). If <forceIt> is set to true, the method MUST perform and return true. Does nothing by default and returns true.
    virtual void BeforeCommitTransaction ()
     A callback. By default does nothing. It is called by TDF_Data::CommitTransaction() method.
    void Backup ()
     Backups the attribute. The backuped attribute is flagged "Backuped" and not "Valid".
    bool IsBackuped () const
     Returns true if the attribute backup status is set. This status is set/unset by the Backup() method.
    virtual occ::handle< TDF_AttributeBackupCopy () const
     Copies the attribute contents into a new other attribute. It is used by Backup().
    virtual occ::handle< TDF_DeltaOnAdditionDeltaOnAddition () const
     Makes an AttributeDelta because <me> appeared. The only known use of a redefinition of this method is to return a null handle (no delta).
    virtual occ::handle< TDF_DeltaOnForgetDeltaOnForget () const
     Makes an AttributeDelta because <me> has been forgotten.
    virtual occ::handle< TDF_DeltaOnResumeDeltaOnResume () const
     Makes an AttributeDelta because <me> has been resumed.
    virtual occ::handle< TDF_DeltaOnModificationDeltaOnModification (const occ::handle< TDF_Attribute > &anOldAttribute) const
     Makes a DeltaOnModification between <me> and.
    virtual void DeltaOnModification (const occ::handle< TDF_DeltaOnModification > &aDelta)
     Applies a DeltaOnModification to <me>.
    virtual occ::handle< TDF_DeltaOnRemovalDeltaOnRemoval () const
     Makes a DeltaOnRemoval on <me> because <me> has disappeared from the DS.
    virtual void References (const occ::handle< TDF_DataSet > &aDataSet) const
     Adds the first level referenced attributes and labels to <aDataSet>.
    Standard_OStreamoperator<< (Standard_OStream &anOS) const
    virtual void ExtendedDump (Standard_OStream &anOS, const TDF_IDFilter &aFilter, NCollection_IndexedMap< occ::handle< TDF_Attribute > > &aMap) const
     Dumps the attribute content on <aStream>, using <aMap> like this: if an attribute is not in the map, first put add it to the map and then dump it. Use the map rank instead of dumping each attribute field.
    void Forget (const int aTransaction)
     Forgets the attribute. <aTransaction> is the current transaction in which the forget is done. A forgotten attribute is also flagged not "Valid".
    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.

    Static Public Member Functions

    static const Standard_GUIDGetID ()
    static occ::handle< XCAFDoc_AreaSet (const TDF_Label &labellabel, const double area)
     Find, or create, an Area attribute and set its value.
    static bool Get (const TDF_Label &labellabel, double &area)
     Returns volume of area as argument and success status returns false if no such attribute at the <label>.
    Static Public Member Functions inherited from TDataStd_Real
    static const Standard_GUIDGetID ()
    static occ::handle< TDataStd_RealSet (const TDF_Label &labellabel, const double valuevalue)
     Finds, or creates, a Real attribute with default GUID and sets . The Real attribute is returned. The Real dimension is Scalar by default. Use SetDimension to overwrite.
    static occ::handle< TDataStd_RealSet (const TDF_Label &labellabel, const Standard_GUID &guid, const double valuevalue)
     Finds, or creates, a Real attribute with explicit GUID and sets . The Real attribute is returned.
    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.

    Additional Inherited Members

    typedef void base_type
     Returns a type descriptor about this object.
    Protected Member Functions inherited from TDF_Attribute
     TDF_Attribute ()
     Initializes fields.
    Protected Attributes inherited from TDataStd_Real
    double myValue
    TDataStd_RealEnum myDimension
     An obsolete field that will be removed in next versions.
    Standard_GUID myID

    Detailed Description

    attribute to store area

    Constructor & Destructor Documentation

    ◆ XCAFDoc_Area()

    XCAFDoc_Area::XCAFDoc_Area ( )

    class methods

    Member Function Documentation

    ◆ Dump()

    Standard_OStream & XCAFDoc_Area::Dump ( Standard_OStream & anOS) const
    overridevirtual

    Dumps the minimum information about <me> on <aStream>.

    Reimplemented from TDataStd_Real.

    ◆ DumpJson()

    void XCAFDoc_Area::DumpJson ( Standard_OStream & theOStream,
    int theDepth = -1 ) const
    overridevirtual

    Dumps the content of me into the stream.

    Reimplemented from TDataStd_Real.

    ◆ Get() [1/2]

    double XCAFDoc_Area::Get ( ) const

    ◆ Get() [2/2]

    bool XCAFDoc_Area::Get ( const TDF_Label & label,
    double & area )
    static

    Returns volume of area as argument and success status returns false if no such attribute at the <label>.

    ◆ GetID()

    const Standard_GUID & XCAFDoc_Area::GetID ( )
    static

    ◆ ID()

    const Standard_GUID & XCAFDoc_Area::ID ( ) const
    overridevirtual

    Returns the ID of the attribute.

    Reimplemented from TDataStd_Real.

    ◆ Set() [1/2]

    void XCAFDoc_Area::Set ( const double vol)

    Sets a value of volume.

    ◆ Set() [2/2]

    occ::handle< XCAFDoc_Area > XCAFDoc_Area::Set ( const TDF_Label & label,
    const double area )
    static

    Find, or create, an Area attribute and set its value.


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