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    Open CASCADE Technology Reference Manual 8.0.1
    IVtk_IShapePickerAlgo Class Referenceabstract

    Interface for 3D shapes picking algorithm. More...

    #include <IVtk_IShapePickerAlgo.hxx>

    Inheritance diagram for IVtk_IShapePickerAlgo:

    Public Types

    typedef occ::handle< IVtk_IShapePickerAlgo > Handle
    Public Types inherited from IVtk_Interface
    typedef occ::handle< IVtk_Interface > Handle
    typedef void base_type
     Returns a type descriptor about this object.

    Public Member Functions

     ~IVtk_IShapePickerAlgo () override=default
    virtual void SetView (const IVtk_IView::Handle &theView)=0
    virtual int NbPicked ()=0
    virtual NCollection_List< IVtk_SelectionMode > GetSelectionModes (const IVtk_IShape::Handle &theShape) const =0
     Get activated selection modes for a shape.
    virtual void SetSelectionMode (const IVtk_IShape::Handle &theShape, const IVtk_SelectionMode theMode, const bool theIsTurnOn=true)=0
     Activates/deactivates the given selection mode for the shape. If mode == SM_None, the shape becomes non-selectable and is removed from the internal selection data.
    virtual void SetSelectionMode (const NCollection_List< IVtk_IShape::Handle > &theShapes, const IVtk_SelectionMode theMode, const bool theIsTurnOn=true)=0
     Activates/deactivates the given selection mode for the shape. If mode == SM_None, the shape becomes non-selectable and is removed from the internal selection data.
    virtual bool Pick (const double theX, const double theY)=0
    virtual bool Pick (const double theXMin, const double theYMin, const double theXMax, const double theYMax)=0
    virtual bool Pick (double **, const int theNbPoints)=0
    virtual const NCollection_List< IVtk_IdType > & ShapesPicked () const =0
    virtual void SubShapesPicked (const IVtk_IdType theId, NCollection_List< IVtk_IdType > &theShapeList) const =0
    Public Member Functions inherited from IVtk_Interface
     ~IVtk_Interface () override=default
    Public Member Functions inherited from Standard_Transient
     Standard_Transient ()
     Empty constructor.
     Standard_Transient (const Standard_Transient &)
     Copy constructor – does nothing.
    Standard_Transient & operator= (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_Transient * This () 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.

    Additional Inherited Members

    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

    Interface for 3D shapes picking algorithm.

    Member Typedef Documentation

    ◆ Handle

    Constructor & Destructor Documentation

    ◆ ~IVtk_IShapePickerAlgo()

    IVtk_IShapePickerAlgo::~IVtk_IShapePickerAlgo ( )
    overridedefault

    Member Function Documentation

    ◆ GetSelectionModes()

    virtual NCollection_List< IVtk_SelectionMode > IVtk_IShapePickerAlgo::GetSelectionModes ( const IVtk_IShape::Handle & theShape) const
    pure virtual

    Get activated selection modes for a shape.

    Parameters
    [in]theShapea shape with activated selection mode(s)
    Returns
    list of active selection modes

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ NbPicked()

    virtual int IVtk_IShapePickerAlgo::NbPicked ( )
    pure virtual

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ Pick() [1/3]

    virtual bool IVtk_IShapePickerAlgo::Pick ( const double theX,
    const double theY )
    pure virtual

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ Pick() [2/3]

    virtual bool IVtk_IShapePickerAlgo::Pick ( const double theXMin,
    const double theYMin,
    const double theXMax,
    const double theYMax )
    pure virtual

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ Pick() [3/3]

    virtual bool IVtk_IShapePickerAlgo::Pick ( double ** ,
    const int theNbPoints )
    pure virtual

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ SetSelectionMode() [1/2]

    virtual void IVtk_IShapePickerAlgo::SetSelectionMode ( const IVtk_IShape::Handle & theShape,
    const IVtk_SelectionMode theMode,
    const bool theIsTurnOn = true )
    pure virtual

    Activates/deactivates the given selection mode for the shape. If mode == SM_None, the shape becomes non-selectable and is removed from the internal selection data.

    Parameters
    [in]theShapeShape for which the selection mode should be activated
    [in]theModeSelection mode to be activated
    [in]theIsTurnOnFlag to turn on/off the selection mode

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ SetSelectionMode() [2/2]

    virtual void IVtk_IShapePickerAlgo::SetSelectionMode ( const NCollection_List< IVtk_IShape::Handle > & theShapes,
    const IVtk_SelectionMode theMode,
    const bool theIsTurnOn = true )
    pure virtual

    Activates/deactivates the given selection mode for the shape. If mode == SM_None, the shape becomes non-selectable and is removed from the internal selection data.

    Parameters
    [in]theShapesList of shapes for which the selection mode should be activated
    [in]theModeSelection mode to be activated
    [in]theIsTurnOnFlag to turn on/off the selection mode

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ SetView()

    virtual void IVtk_IShapePickerAlgo::SetView ( const IVtk_IView::Handle & theView)
    pure virtual

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ ShapesPicked()

    virtual const NCollection_List< IVtk_IdType > & IVtk_IShapePickerAlgo::ShapesPicked ( ) const
    pure virtual
    Returns
    the list of picked top-level shape IDs, in the order of increasing depth (the ID of the shape closest to the eye is the first in the list)

    Implemented in IVtkOCC_ShapePickerAlgo.

    ◆ SubShapesPicked()

    virtual void IVtk_IShapePickerAlgo::SubShapesPicked ( const IVtk_IdType theId,
    NCollection_List< IVtk_IdType > & theShapeList ) const
    pure virtual
    Parameters
    [in]theIdTop-level shape ID
    [out]theShapeListthe list of picked sub-shape IDs for the given top-level shape ID, in the order of increasing depth (the ID of the sub-shape closest to the eye is the first in the list)

    Implemented in IVtkOCC_ShapePickerAlgo.


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