Abstract class for drawing 2D primitives. More...

#include <vtkContextDevice2D.h>

Inheritance diagram for vtkContextDevice2D:

Collaboration diagram for vtkContextDevice2D:

Public Types
enum	TextureProperty { Nearest = 0x01 , Linear = 0x02 , Stretch = 0x04 , Repeat = 0x08 }

typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkContextDevice2D *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

virtual void	DrawPoly (float points, int n, unsigned char colors=nullptr, int nc_comps=0)=0
	Draw a poly line using the points - fastest code path due to memory layout of the coordinates.

virtual void	DrawLines (float f, int n, unsigned char colors=nullptr, int nc_comps=0)=0
	Draw lines using the points - memory layout is as follows: l1p1,l1p2,l2p1,l2p2... The lines will be colored by colors array which has nc_comps components (defining a single color).

virtual void	DrawPoints (float points, int n, unsigned char colors=nullptr, int nc_comps=0)=0
	Draw a series of points - fastest code path due to memory layout of the coordinates.

virtual void	DrawPoints (vtkDataArray positions, vtkUnsignedCharArray colors, std::uintptr_t vtkNotUsed(cacheIdentifier))

virtual void	DrawPointSprites (vtkImageData sprite, float points, int n, unsigned char *colors=nullptr, int nc_comps=0)=0
	Draw a series of point sprites, images centred at the points supplied.

virtual void	DrawPointSprites (vtkImageData sprite, vtkDataArray positions, vtkUnsignedCharArray *colors, std::uintptr_t vtkNotUsed(cacheIdentifier))

virtual void	DrawMarkers (int shape, bool highlight, float points, int n, unsigned char colors=nullptr, int nc_comps=0)
	Draw a series of markers centered at the points supplied.

virtual void	DrawMarkers (int shape, bool highlight, vtkDataArray positions, vtkUnsignedCharArray colors, std::uintptr_t vtkNotUsed(cacheIdentifier))

virtual void	DrawQuad (float *, int)
	Draw a quad using the specified number of points.

virtual void	DrawQuadStrip (float *, int)
	Draw a quad using the specified number of points.

virtual void	DrawEllipseWedge (float x, float y, float outRx, float outRy, float inRx, float inRy, float startAngle, float stopAngle)=0
	Draw an elliptic wedge with center at x, y, outer radii outRx, outRy, inner radii inRx, inRy between angles startAngle and stopAngle (expressed in degrees).

virtual void	DrawEllipticArc (float x, float y, float rX, float rY, float startAngle, float stopAngle)=0
	Draw an elliptic arc with center at x,y with radii rX and rY between angles startAngle and stopAngle (expressed in degrees).

virtual void	DrawString (float *point, const vtkStdString &string)=0
	Draw some text to the screen.

virtual void	ComputeStringBounds (const vtkStdString &string, float bounds[4])=0
	Compute the bounds of the supplied string.

virtual void	ComputeJustifiedStringBounds (const char *string, float bounds[4])=0
	Compute the bounds of the supplied string while taking into account the justification of the currently applied text property.

virtual void	DrawMathTextString (float *point, const vtkStdString &string)=0
	Draw text using MathText markup for mathematical equations.

virtual bool	MathTextIsSupported ()
	Return true if MathText rendering available on this device.

virtual void	DrawImage (float p[2], float scale, vtkImageData *image)=0
	Draw the supplied image at the given x, y (p[0], p[1]) (bottom corner), scaled by scale (1.0 would match the image).

virtual void	DrawImage (const vtkRectf &pos, vtkImageData *image)=0
	Draw the supplied image at the given position.

virtual void	DrawPolyData (float p[2], float scale, vtkPolyData polyData, vtkUnsignedCharArray colors, int scalarMode)
	Draw the supplied PolyData at the given x, y (p[0], p[1]) (bottom corner), scaled by scale (1.0 would match the actual dataset).

virtual void	ApplyPen (vtkPen *pen)
	Apply the supplied pen which controls the outlines of shapes, as well as lines, points and related primitives.

virtual void	ApplyBrush (vtkBrush *brush)
	Apply the supplied brush which controls the outlines of shapes, as well as lines, points and related primitives.

virtual void	ApplyTextProp (vtkTextProperty *prop)
	Apply the supplied text property which controls how text is rendered.

virtual void	SetColor4 (unsigned char color[4])=0
	Set the color for the device using unsigned char of length 4, RGBA.

virtual void	SetTexture (vtkImageData *image, int properties)=0
	Set the texture for the device, it is used to fill the polygons.

virtual void	SetPointSize (float size)=0
	Set the point size for glyphs/sprites.

virtual void	SetLineWidth (float width)=0
	Set the line width.

virtual void	SetLineType (int type)=0
	Set the line type type (using anonymous enum in vtkPen).

virtual int	GetWidth ()
	Get the width of the device in pixels.

virtual int	GetHeight ()
	Get the width of the device in pixels.

virtual void	SetMatrix (vtkMatrix3x3 *m)=0
	Set the model view matrix for the display.

virtual void	GetMatrix (vtkMatrix3x3 *m)=0
	Set the model view matrix for the display.

virtual void	MultiplyMatrix (vtkMatrix3x3 *m)=0
	Multiply the current model view matrix by the supplied one.

virtual void	PushMatrix ()=0
	Push the current matrix onto the stack.

virtual void	PopMatrix ()=0
	Pop the current matrix off of the stack.

virtual void	SetClipping (int *x)=0
	Supply an int array of length 4 with x1, y1, width, height specifying clipping region for the device in pixels.

virtual void	DisableClipping ()
	Disable clipping of the display.

virtual void	EnableClipping (bool enable)=0
	Enable or disable the clipping of the scene.

virtual void	Begin (vtkViewport *)
	Begin drawing, pass in the viewport to set up the view.

virtual void	End ()
	End drawing, clean up the view.

virtual bool	GetBufferIdMode () const
	Tell if the device context is in BufferId creation mode.

virtual void	BufferIdModeBegin (vtkAbstractContextBufferId *bufferId)
	Start BufferId creation Mode.

virtual void	BufferIdModeEnd ()
	Finalize BufferId creation Mode.

virtual void	SetViewportSize (const vtkVector2i &size)

virtual vtkVector2i	GetViewportSize ()

virtual void	SetViewportRect (const vtkRecti &rect)

virtual vtkRecti	GetViewportRect ()

virtual void	ReleaseCache (std::uintptr_t vtkNotUsed(cacheIdentifier))
	Concrete graphics implementations maintain a cache of heavy-weight buffer objects to achieve higher interactive framerates.


virtual void	DrawPolygon (float *p, int n)
	Draw a polygon using the specified number of points.

virtual void	DrawColoredPolygon (float points, int numPoints, unsigned char colors=nullptr, int nc_comps=0)
	Draw a polygon using the specified number of points.


virtual vtkPen *	GetPen ()
	Get the pen which controls the outlines of shapes, as well as lines, points and related primitives.


virtual vtkBrush *	GetBrush ()
	Get the pen which controls the outlines of shapes as well as lines, points and related primitives.


virtual vtkTextProperty *	GetTextProp ()
	Get the text properties object for the vtkContext2D.

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on.

virtual void	DebugOff ()
	Turn debugging output off.

bool	GetDebug ()
	Get the value of the debug flag.

void	SetDebug (bool debugFlag)
	Set the value of the debug flag.

virtual void	Modified ()
	Update the modification time for this object.

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

vtkTypeBool	InvokeEvent (unsigned long event)

vtkTypeBool	InvokeEvent (const char *event)

std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output.

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method.

vtkTypeBool	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.

vtkTypeBool	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not.

virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes.

virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes.

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.

virtual std::string	GetObjectDescription () const
	The object description printed in messages and PrintSelf output.

virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

virtual void	Delete ()
	Delete a VTK object.

virtual void	FastDelete ()
	Delete a reference to this object.

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream.

void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).

int	GetReferenceCount ()
	Return the current reference count of this object.

void	SetReferenceCount (int)
	Sets the reference count.

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses `vtkGarbageCollector` or not.

Static Public Member Functions
static vtkTypeBool	IsTypeOf (const char *type)

static vtkContextDevice2D *	SafeDownCast (vtkObjectBase *o)

static vtkContextDevice2D *	New ()

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.

static void	SetGlobalWarningDisplay (vtkTypeBool val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static vtkTypeBool	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class.

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkContextDevice2D ()

	~vtkContextDevice2D () override

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events.

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

virtual void	ObjectFinalize ()

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
int	Geometry [2]
	Store the width and height of the device in pixels.

vtkVector2i	ViewportSize
	Store the size of the total viewport.

vtkRecti	ViewportRect
	Store our origin and size in the total viewport.

vtkAbstractContextBufferId *	BufferId

vtkPen *	Pen

vtkBrush *	Brush

vtkTextProperty *	TextProp

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

std::string	ObjectName

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

Abstract class for drawing 2D primitives.

This defines the interface for a vtkContextDevice2D. In this sense a ContextDevice is a class used to paint 2D primitives onto a device, such as an OpenGL context or a QGraphicsView.

Tests:: vtkContextDevice2D (Tests)

Definition at line 43 of file vtkContextDevice2D.h.

Member Typedef Documentation

◆ Superclass

typedef vtkObject vtkContextDevice2D::Superclass

Definition at line 46 of file vtkContextDevice2D.h.

Member Enumeration Documentation

◆ TextureProperty

enum vtkContextDevice2D::TextureProperty

Enumerator
Nearest
Linear
Stretch
Repeat

Definition at line 272 of file vtkContextDevice2D.h.

Constructor & Destructor Documentation

◆ vtkContextDevice2D()

vtkContextDevice2D::vtkContextDevice2D ( )

protected

◆ ~vtkContextDevice2D()

vtkContextDevice2D::~vtkContextDevice2D ( )

overrideprotected

Member Function Documentation

◆ IsTypeOf()

static vtkTypeBool vtkContextDevice2D::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkContextDevice2D::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObjectBase.

Reimplemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ SafeDownCast()

static vtkContextDevice2D * vtkContextDevice2D::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkContextDevice2D::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ NewInstance()

vtkContextDevice2D * vtkContextDevice2D::NewInstance ( ) const

◆ PrintSelf()

void vtkContextDevice2D::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObjectBase.

Reimplemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ New()

static vtkContextDevice2D * vtkContextDevice2D::New ( )

static

◆ DrawPoly()

virtual void vtkContextDevice2D::DrawPoly	(	float *	points,
		int	n,
		unsigned char *	colors = `nullptr`,
		int	nc_comps = `0`
	)

pure virtual

Draw a poly line using the points - fastest code path due to memory layout of the coordinates.

The line will be colored by the colors array, which must be have nc_comps components (defining a single color).

See also: DrawLines()

Implemented in vtkOpenGLContextDevice2D, vtkSVGContextDevice2D, and vtkPDFContextDevice2D.

◆ DrawLines()

virtual void vtkContextDevice2D::DrawLines	(	float *	f,
		int	n,
		unsigned char *	colors = `nullptr`,
		int	nc_comps = `0`
	)

pure virtual

Draw lines using the points - memory layout is as follows: l1p1,l1p2,l2p1,l2p2... The lines will be colored by colors array which has nc_comps components (defining a single color).

See also: DrawPoly()

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawPoints() [1/2]

virtual void vtkContextDevice2D::DrawPoints	(	float *	points,
		int	n,
		unsigned char *	colors = `nullptr`,
		int	nc_comps = `0`
	)

pure virtual

Draw a series of points - fastest code path due to memory layout of the coordinates.

The colors and nc_comps are optional - color array.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawPoints() [2/2]

virtual void vtkContextDevice2D::DrawPoints	(	vtkDataArray *	positions,
		vtkUnsignedCharArray *	colors,
		std::uintptr_t	vtkNotUsedcacheIdentifier
	)

virtual

◆ DrawPointSprites() [1/2]

virtual void vtkContextDevice2D::DrawPointSprites	(	vtkImageData *	sprite,
		float *	points,
		int	n,
		unsigned char *	colors = `nullptr`,
		int	nc_comps = `0`
	)

pure virtual

Draw a series of point sprites, images centred at the points supplied.

The supplied vtkImageData is the sprite to be drawn, only squares will be drawn and the size is set using SetPointSize.

Parameters

sprite	the image to draw
points	where to draw the sprites
n	the number of points
colors	is an optional array of colors.
nc_comps	is the number of components for the color.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawPointSprites() [2/2]

virtual void vtkContextDevice2D::DrawPointSprites	(	vtkImageData *	sprite,
		vtkDataArray *	positions,
		vtkUnsignedCharArray *	colors,
		std::uintptr_t	vtkNotUsedcacheIdentifier
	)

virtual

◆ DrawMarkers() [1/2]

virtual void vtkContextDevice2D::DrawMarkers	(	int	shape,
		bool	highlight,
		float *	points,
		int	n,
		unsigned char *	colors = `nullptr`,
		int	nc_comps = `0`
	)

virtual

Draw a series of markers centered at the points supplied.

The shape argument controls the marker shape, and can be one of

VTK_MARKER_CROSS
VTK_MARKER_PLUS
VTK_MARKER_SQUARE
VTK_MARKER_CIRCLE

VTK_MARKER_DIAMOND

Parameters

shape	the shape of the marker
highlight	whether to highlight the marker or not
points	where to draw the sprites
n	the number of points
colors	is an optional array of colors.
nc_comps	is the number of components for the color.

Reimplemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawMarkers() [2/2]

virtual void vtkContextDevice2D::DrawMarkers	(	int	shape,
		bool	highlight,
		vtkDataArray *	positions,
		vtkUnsignedCharArray *	colors,
		std::uintptr_t	vtkNotUsedcacheIdentifier
	)

virtual

◆ DrawQuad()

virtual void vtkContextDevice2D::DrawQuad	(	float *	,
		int
	)

inlinevirtual

Draw a quad using the specified number of points.

Reimplemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

Definition at line 116 of file vtkContextDevice2D.h.

◆ DrawQuadStrip()

virtual void vtkContextDevice2D::DrawQuadStrip	(	float *	,
		int
	)

inlinevirtual

Draw a quad using the specified number of points.

Reimplemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

Definition at line 121 of file vtkContextDevice2D.h.

◆ DrawPolygon()

virtual void vtkContextDevice2D::DrawPolygon	(	float *	p,
		int	n
	)

inlinevirtual

Draw a polygon using the specified number of points.

Reimplemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

Definition at line 127 of file vtkContextDevice2D.h.

◆ DrawColoredPolygon()

virtual void vtkContextDevice2D::DrawColoredPolygon	(	float *	points,
		int	numPoints,
		unsigned char *	colors = `nullptr`,
		int	nc_comps = `0`
	)

virtual

Draw a polygon using the specified number of points.

Reimplemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawEllipseWedge()

virtual void vtkContextDevice2D::DrawEllipseWedge	(	float	x,
		float	y,
		float	outRx,
		float	outRy,
		float	inRx,
		float	inRy,
		float	startAngle,
		float	stopAngle
	)

pure virtual

Draw an elliptic wedge with center at x, y, outer radii outRx, outRy, inner radii inRx, inRy between angles startAngle and stopAngle (expressed in degrees).

Precondition: positive_outRx: outRx>=0; positive_outRy: outRy>=0; positive_inRx: inRx>=0; positive_inRy: inRy>=0; ordered_rx: inRx<=outRx; ordered_ry: inRy<=outRy

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawEllipticArc()

virtual void vtkContextDevice2D::DrawEllipticArc	(	float	x,
		float	y,
		float	rX,
		float	rY,
		float	startAngle,
		float	stopAngle
	)

pure virtual

Draw an elliptic arc with center at x,y with radii rX and rY between angles startAngle and stopAngle (expressed in degrees).

Precondition: positive_rX: rX>=0; positive_rY: rY>=0

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawString()

virtual void vtkContextDevice2D::DrawString	(	float *	point,
		const vtkStdString &	string
	)

pure virtual

Draw some text to the screen.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ ComputeStringBounds()

virtual void vtkContextDevice2D::ComputeStringBounds	(	const vtkStdString &	string,
		float	bounds[4]
	)

pure virtual

Compute the bounds of the supplied string.

The bounds will be copied to the supplied bounds variable, the first two elements are the bottom corner of the string, and the second two elements are the width and height of the bounding box. NOTE: This function does not take account of the text rotation or justification.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ ComputeJustifiedStringBounds()

virtual void vtkContextDevice2D::ComputeJustifiedStringBounds	(	const char *	string,
		float	bounds[4]
	)

pure virtual

Compute the bounds of the supplied string while taking into account the justification of the currently applied text property.

Simple rotations (0, 90, 180, 270) are also correctly taken into account.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawMathTextString()

virtual void vtkContextDevice2D::DrawMathTextString	(	float *	point,
		const vtkStdString &	string
	)

pure virtual

Draw text using MathText markup for mathematical equations.

See http://matplotlib.sourceforge.net/users/mathtext.html for more information.

Implemented in vtkSVGContextDevice2D, and vtkPDFContextDevice2D.

◆ MathTextIsSupported()

virtual bool vtkContextDevice2D::MathTextIsSupported ( )

virtual

Return true if MathText rendering available on this device.

◆ DrawImage() [1/2]

virtual void vtkContextDevice2D::DrawImage	(	float	p[2],
		float	scale,
		vtkImageData *	image
	)

pure virtual

Draw the supplied image at the given x, y (p[0], p[1]) (bottom corner), scaled by scale (1.0 would match the image).

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawImage() [2/2]

virtual void vtkContextDevice2D::DrawImage	(	const vtkRectf &	pos,
		vtkImageData *	image
	)

pure virtual

Draw the supplied image at the given position.

The origin, width, and height are specified by the supplied vtkRectf variable pos. The image will be drawn scaled to that size.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DrawPolyData()

virtual void vtkContextDevice2D::DrawPolyData	(	float	p[2],
		float	scale,
		vtkPolyData *	polyData,
		vtkUnsignedCharArray *	colors,
		int	scalarMode
	)

virtual

Draw the supplied PolyData at the given x, y (p[0], p[1]) (bottom corner), scaled by scale (1.0 would match the actual dataset).

Only lines and polys are rendered. Only the x/y coordinates of the polydata are used.

Parameters

p	Offset to apply to polydata.
scale	Isotropic scale for polydata. Applied after offset.
polyData	Draw lines and polys from this dataset.
colors	RGBA for points or cells, depending on value of scalarMode. Must not be NULL.
scalarMode	Must be either VTK_SCALAR_MODE_USE_POINT_DATA or VTK_SCALAR_MODE_USE_CELL_DATA.

The base implementation breaks the polydata apart and renders each polygon individually using the device API. Subclasses should override this method with a batch-drawing implementation if performance is a concern.

Reimplemented in vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ ApplyPen()

virtual void vtkContextDevice2D::ApplyPen ( vtkPen * pen )

virtual

Apply the supplied pen which controls the outlines of shapes, as well as lines, points and related primitives.

This makes a deep copy of the vtkPen object in the vtkContext2D, it does not hold a pointer to the supplied object.

◆ GetPen()

virtual vtkPen * vtkContextDevice2D::GetPen ( )

virtual

Get the pen which controls the outlines of shapes, as well as lines, points and related primitives.

This object can be modified and the changes will be reflected in subsequent drawing operations.

◆ ApplyBrush()

virtual void vtkContextDevice2D::ApplyBrush ( vtkBrush * brush )

virtual

Apply the supplied brush which controls the outlines of shapes, as well as lines, points and related primitives.

This makes a deep copy of the vtkBrush object in the vtkContext2D, it does not hold a pointer to the supplied object.

◆ GetBrush()

virtual vtkBrush * vtkContextDevice2D::GetBrush ( )

virtual

Get the pen which controls the outlines of shapes as well as lines, points and related primitives.

◆ ApplyTextProp()

virtual void vtkContextDevice2D::ApplyTextProp ( vtkTextProperty * prop )

virtual

Apply the supplied text property which controls how text is rendered.

This makes a deep copy of the vtkTextProperty object in the vtkContext2D, it does not hold a pointer to the supplied object.

◆ GetTextProp()

virtual vtkTextProperty * vtkContextDevice2D::GetTextProp ( )

virtual

Get the text properties object for the vtkContext2D.

◆ SetColor4()

virtual void vtkContextDevice2D::SetColor4 ( unsigned char color[4] )

pure virtual

Set the color for the device using unsigned char of length 4, RGBA.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ SetTexture()

virtual void vtkContextDevice2D::SetTexture	(	vtkImageData *	image,
		int	properties
	)

pure virtual

Set the texture for the device, it is used to fill the polygons.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ SetPointSize()

virtual void vtkContextDevice2D::SetPointSize ( float size )

pure virtual

Set the point size for glyphs/sprites.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ SetLineWidth()

virtual void vtkContextDevice2D::SetLineWidth ( float width )

pure virtual

Set the line width.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ SetLineType()

virtual void vtkContextDevice2D::SetLineType ( int type )

pure virtual

Set the line type type (using anonymous enum in vtkPen).

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ GetWidth()

virtual int vtkContextDevice2D::GetWidth ( )

inlinevirtual

Get the width of the device in pixels.

Definition at line 302 of file vtkContextDevice2D.h.

◆ GetHeight()

virtual int vtkContextDevice2D::GetHeight ( )

inlinevirtual

Get the width of the device in pixels.

Definition at line 307 of file vtkContextDevice2D.h.

◆ SetMatrix()

virtual void vtkContextDevice2D::SetMatrix ( vtkMatrix3x3 * m )

pure virtual

Set the model view matrix for the display.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ GetMatrix()

virtual void vtkContextDevice2D::GetMatrix ( vtkMatrix3x3 * m )

pure virtual

Set the model view matrix for the display.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ MultiplyMatrix()

virtual void vtkContextDevice2D::MultiplyMatrix ( vtkMatrix3x3 * m )

pure virtual

Multiply the current model view matrix by the supplied one.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ PushMatrix()

virtual void vtkContextDevice2D::PushMatrix ( )

pure virtual

Push the current matrix onto the stack.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ PopMatrix()

virtual void vtkContextDevice2D::PopMatrix ( )

pure virtual

Pop the current matrix off of the stack.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ SetClipping()

virtual void vtkContextDevice2D::SetClipping ( int * x )

pure virtual

Supply an int array of length 4 with x1, y1, width, height specifying clipping region for the device in pixels.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ DisableClipping()

virtual void vtkContextDevice2D::DisableClipping ( )

inlinevirtual

Disable clipping of the display.

Remove in a future release - retained for API compatibility.

Definition at line 344 of file vtkContextDevice2D.h.

◆ EnableClipping()

virtual void vtkContextDevice2D::EnableClipping ( bool enable )

pure virtual

Enable or disable the clipping of the scene.

Implemented in vtkSVGContextDevice2D, vtkPDFContextDevice2D, and vtkOpenGLContextDevice2D.

◆ Begin()

virtual void vtkContextDevice2D::Begin ( vtkViewport * )

inlinevirtual

Begin drawing, pass in the viewport to set up the view.

Reimplemented in vtkSVGContextDevice2D, and vtkOpenGLContextDevice2D.

Definition at line 354 of file vtkContextDevice2D.h.

◆ End()

virtual void vtkContextDevice2D::End ( )

inlinevirtual

End drawing, clean up the view.

Reimplemented in vtkSVGContextDevice2D, and vtkOpenGLContextDevice2D.

Definition at line 359 of file vtkContextDevice2D.h.

◆ GetBufferIdMode()

virtual bool vtkContextDevice2D::GetBufferIdMode ( ) const

virtual

Tell if the device context is in BufferId creation mode.

Initial value is false.

◆ BufferIdModeBegin()

virtual void vtkContextDevice2D::BufferIdModeBegin ( vtkAbstractContextBufferId * bufferId )

virtual

Start BufferId creation Mode.

The default implementation is empty.

Precondition: not_yet: !GetBufferIdMode(); bufferId_exists: bufferId!=0

Postcondition: started: GetBufferIdMode()

Reimplemented in vtkOpenGLContextDevice2D.

◆ BufferIdModeEnd()

virtual void vtkContextDevice2D::BufferIdModeEnd ( )

virtual

Finalize BufferId creation Mode.

It makes sure that the content of the bufferId passed in argument of BufferIdModeBegin() is correctly set. The default implementation is empty.

Precondition: started: GetBufferIdMode()

Postcondition: done: !GetBufferIdMode()

Reimplemented in vtkOpenGLContextDevice2D.

◆ SetViewportSize()

virtual void vtkContextDevice2D::SetViewportSize ( const vtkVector2i & size )

inlinevirtual

Definition at line 385 of file vtkContextDevice2D.h.

◆ GetViewportSize()

virtual vtkVector2i vtkContextDevice2D::GetViewportSize ( )

virtual

◆ SetViewportRect()

virtual void vtkContextDevice2D::SetViewportRect ( const vtkRecti & rect )

inlinevirtual

Definition at line 388 of file vtkContextDevice2D.h.

◆ GetViewportRect()

virtual vtkRecti vtkContextDevice2D::GetViewportRect ( )

virtual

◆ ReleaseCache()

virtual void vtkContextDevice2D::ReleaseCache ( std::uintptr_t vtkNotUsedcacheIdentifier )

inlinevirtual

Concrete graphics implementations maintain a cache of heavy-weight buffer objects to achieve higher interactive framerates.

This method requests the devices to release the cached objects for a given cache identifier.

Definition at line 396 of file vtkContextDevice2D.h.

Member Data Documentation

◆ Geometry

int vtkContextDevice2D::Geometry[2]

protected

Store the width and height of the device in pixels.

Definition at line 405 of file vtkContextDevice2D.h.

◆ ViewportSize

vtkVector2i vtkContextDevice2D::ViewportSize

protected

Store the size of the total viewport.

Definition at line 410 of file vtkContextDevice2D.h.

◆ ViewportRect

vtkRecti vtkContextDevice2D::ViewportRect

protected

Store our origin and size in the total viewport.

Definition at line 415 of file vtkContextDevice2D.h.

◆ BufferId

vtkAbstractContextBufferId* vtkContextDevice2D::BufferId

protected

Definition at line 417 of file vtkContextDevice2D.h.

◆ Pen

vtkPen* vtkContextDevice2D::Pen

protected

Definition at line 419 of file vtkContextDevice2D.h.

◆ Brush

vtkBrush* vtkContextDevice2D::Brush

protected

Definition at line 420 of file vtkContextDevice2D.h.

◆ TextProp

vtkTextProperty* vtkContextDevice2D::TextProp

protected

Definition at line 421 of file vtkContextDevice2D.h.

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

Rendering/Context2D/vtkContextDevice2D.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Member Enumeration Documentation

◆ TextureProperty

Constructor & Destructor Documentation

◆ vtkContextDevice2D()

◆ ~vtkContextDevice2D()

Member Function Documentation

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ New()

◆ DrawPoly()

◆ DrawLines()

◆ DrawPoints() [1/2]

◆ DrawPoints() [2/2]

◆ DrawPointSprites() [1/2]

◆ DrawPointSprites() [2/2]

◆ DrawMarkers() [1/2]

◆ DrawMarkers() [2/2]

◆ DrawQuad()

◆ DrawQuadStrip()

◆ DrawPolygon()

◆ DrawColoredPolygon()

◆ DrawEllipseWedge()

◆ DrawEllipticArc()

◆ DrawString()

◆ ComputeStringBounds()

◆ ComputeJustifiedStringBounds()

◆ DrawMathTextString()

◆ MathTextIsSupported()

◆ DrawImage() [1/2]

◆ DrawImage() [2/2]

◆ DrawPolyData()

◆ ApplyPen()

◆ GetPen()

◆ ApplyBrush()

◆ GetBrush()

◆ ApplyTextProp()

◆ GetTextProp()

◆ SetColor4()

◆ SetTexture()

◆ SetPointSize()

◆ SetLineWidth()

◆ SetLineType()

◆ GetWidth()

◆ GetHeight()

◆ SetMatrix()

◆ GetMatrix()

◆ MultiplyMatrix()

◆ PushMatrix()

◆ PopMatrix()

◆ SetClipping()

◆ DisableClipping()

◆ EnableClipping()

◆ Begin()

◆ End()

◆ GetBufferIdMode()

◆ BufferIdModeBegin()

◆ BufferIdModeEnd()

◆ SetViewportSize()

◆ GetViewportSize()

◆ SetViewportRect()

◆ GetViewportRect()

◆ ReleaseCache()

Member Data Documentation

◆ Geometry

◆ ViewportSize

◆ ViewportRect

◆ BufferId