ICamera implementation for VTK. More...

#include <IVtkVTK_View.hxx>

Inheritance diagram for IVtkVTK_View:

[legend]

Public Types
typedef Handle< IVtkVTK_View >	Handle

Public Types inherited from IVtk_IView
typedef Handle< IVtk_IView >	Handle

Public Types inherited from IVtk_Interface
typedef Handle< IVtk_Interface >	Handle

typedef void	base_type
	Returns a type descriptor about this object.

Public Member Functions
	IVtkVTK_View (vtkRenderer *theRenderer)

virtual	~IVtkVTK_View ()
	Destructor.

virtual bool	IsPerspective () const override

virtual double	GetDistance () const override

virtual void	GetEyePosition (double &theX, double &theY, double &theZ) const override

virtual void	GetPosition (double &theX, double &theY, double &theZ) const override

virtual void	GetViewUp (double &theDx, double &theDy, double &theDz) const override

virtual void	GetDirectionOfProjection (double &theDx, double &theDy, double &theDz) const override

virtual void	GetScale (double &theX, double &theY, double &theZ) const override

virtual double	GetParallelScale () const override

virtual double	GetViewAngle () const override

virtual void	GetClippingRange (double &theZNear, double &theZFar) const override

virtual double	GetAspectRatio () const override

virtual void	GetViewCenter (double &theX, double &theY) const override

virtual void	GetWindowSize (int &theX, int &theY) const override
	Gets window size in screen coordinates in pixels.

virtual void	GetCamera (Graphic3d_Mat4d &theProj, Graphic3d_Mat4d &theOrient, Standard_Boolean &theIsOrtho) const override
	Gets camera projection and orientation matrices.

virtual void	GetViewport (Standard_Real &theX, Standard_Real &theY, Standard_Real &theWidth, Standard_Real &theHeight) const override
	Gets viewport coordinates.

virtual bool	DisplayToWorld (const gp_XY &theDisplayPnt, gp_XYZ &theWorldPnt) const override
	Converts 3D display coordinates into 3D world coordinates.

Public Member Functions inherited from IVtk_IView
virtual	~IVtk_IView ()
	Destructor.

Public Member Functions inherited from IVtk_Interface
virtual	~IVtk_Interface ()

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 ()
	Destructor must be virtual.

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.

Standard_Boolean	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName.

Standard_Boolean	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.

Standard_Boolean	IsKind (const Standard_CString 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.

Standard_Integer	GetRefCount () const noexcept
	Get the reference counter of this object.

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object.

Standard_Integer	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value.

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

ICamera implementation for VTK.

This class is used for obtaining view transformation parameters. These parameters are used by selection algorithm to compute projections of selectable (active) 3D shapes.

Member Typedef Documentation

◆ Handle

typedef Handle< IVtkVTK_View > IVtkVTK_View::Handle

Constructor & Destructor Documentation

◆ IVtkVTK_View()

IVtkVTK_View::IVtkVTK_View ( vtkRenderer * theRenderer )

◆ ~IVtkVTK_View()

virtual IVtkVTK_View::~IVtkVTK_View ( )

virtual

Destructor.

Member Function Documentation

◆ DisplayToWorld()

virtual bool IVtkVTK_View::DisplayToWorld	(	const gp_XY &	theDisplayPnt,
		gp_XYZ &	theWorldPnt ) const

overridevirtual

Converts 3D display coordinates into 3D world coordinates.

Parameters

[in]	theDisplayPnt	2d point of display coordinates
[out]	theWorldPnt	3d point of world coordinates

Returns: true if conversion was successful, false otherwise

Implements IVtk_IView.

◆ GetAspectRatio()

virtual double IVtkVTK_View::GetAspectRatio ( ) const

overridevirtual

Returns: The current view the aspect ratio

Implements IVtk_IView.

◆ GetCamera()

virtual void IVtkVTK_View::GetCamera	(	Graphic3d_Mat4d &	theProj,
		Graphic3d_Mat4d &	theOrient,
		Standard_Boolean &	theIsOrtho ) const

overridevirtual

Gets camera projection and orientation matrices.

Implements IVtk_IView.

◆ GetClippingRange()

virtual void IVtkVTK_View::GetClippingRange	(	double &	theZNear,
		double &	theZFar ) const

overridevirtual

Returns: The location of the near and far clipping planes along the direction of projection

Implements IVtk_IView.

◆ GetDirectionOfProjection()

virtual void IVtkVTK_View::GetDirectionOfProjection	(	double &	theDx,
		double &	theDy,
		double &	theDz ) const

overridevirtual

Returns: The projection direction vector of this view

Implements IVtk_IView.

◆ GetDistance()

virtual double IVtkVTK_View::GetDistance ( ) const

overridevirtual

Returns: The focal distance of the view

Implements IVtk_IView.

◆ GetEyePosition()

virtual void IVtkVTK_View::GetEyePosition	(	double &	theX,
		double &	theY,
		double &	theZ ) const

overridevirtual

Returns: The world coordinates of the camera position

Implements IVtk_IView.

◆ GetParallelScale()

virtual double IVtkVTK_View::GetParallelScale ( ) const

overridevirtual

Returns: The current view's zoom factor (for parallel projection)

Implements IVtk_IView.

◆ GetPosition()

virtual void IVtkVTK_View::GetPosition	(	double &	theX,
		double &	theY,
		double &	theZ ) const

overridevirtual

Returns: The world coordinates of the view position

Implements IVtk_IView.

◆ GetScale()

virtual void IVtkVTK_View::GetScale	(	double &	theX,
		double &	theY,
		double &	theZ ) const

overridevirtual

Returns: Three doubles containing scale components of the view transformation

Implements IVtk_IView.

◆ GetViewAngle()

virtual double IVtkVTK_View::GetViewAngle ( ) const

overridevirtual

Returns: The current view angle (for perspective projection)

Implements IVtk_IView.

◆ GetViewCenter()

virtual void IVtkVTK_View::GetViewCenter	(	double &	theX,
		double &	theY ) const

overridevirtual

Returns: Two doubles containing the display coordinates of the view window center

Implements IVtk_IView.

◆ GetViewport()

virtual void IVtkVTK_View::GetViewport	(	Standard_Real &	theX,
		Standard_Real &	theY,
		Standard_Real &	theWidth,
		Standard_Real &	theHeight ) const

overridevirtual

Gets viewport coordinates.

Implements IVtk_IView.

◆ GetViewUp()

virtual void IVtkVTK_View::GetViewUp	(	double &	theDx,
		double &	theDy,
		double &	theDz ) const

overridevirtual

Returns: The "view up" direction of the view

Implements IVtk_IView.

◆ GetWindowSize()

virtual void IVtkVTK_View::GetWindowSize	(	int &	theX,
		int &	theY ) const

overridevirtual

Gets window size in screen coordinates in pixels.

Implements IVtk_IView.

◆ IsPerspective()

virtual bool IVtkVTK_View::IsPerspective ( ) const

overridevirtual

Returns: true if this is a perspective view, and false otherwise.

Implements IVtk_IView.

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

IVtkVTK_View.hxx

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Handle

Constructor & Destructor Documentation

◆ IVtkVTK_View()

◆ ~IVtkVTK_View()

Member Function Documentation

◆ DisplayToWorld()

◆ GetAspectRatio()

◆ GetCamera()

◆ GetClippingRange()

◆ GetDirectionOfProjection()

◆ GetDistance()

◆ GetEyePosition()

◆ GetParallelScale()

◆ GetPosition()

◆ GetScale()

◆ GetViewAngle()

◆ GetViewCenter()

◆ GetViewport()

◆ GetViewUp()

◆ GetWindowSize()

◆ IsPerspective()