Draws an overlay image on the SoView2D. More...

#include <SoView2DOverlay.h>

Inheritance diagram for SoView2DOverlay:

Public Member Functions
	SoView2DOverlay ()
	Constructor.
virtual void	startDrawing (View2DSliceList *slicelist)
	reimplemented from SoView2DExtension
virtual void	endDrawing (View2DSliceList *slicelist)
	reimplemented from SoView2DExtension
virtual void	draw (View2DSliceList dsl, View2DSlice dslice, int slice)
	reimplemented from SoView2DExtension
virtual bool	evalEvent (SoView2D view2d, View2DSliceList slicelist, View2DEvent *ec, View2DEventPhase phase)
	reimplemented from SoView2DExtension
void	GLRender (SoGLRenderAction *action)
	reimplemented from SoNode, stores the LUT for later rendering
Static Public Member Functions
static void	initClass ()
	inventor runtime type system
Public Attributes

SoSFMLImage	image
	input image
SoSFBool	cacheTextures
	flag if textures should be cached
SoSFEnum	blendMode
	select the blend mode of the overlay
SoSFBool	inheritFilterMode
	inherit filter mode
SoSFEnum	filterMode
	filter mode for rendering
SoSFFloat	alphaFactor
	set the alpha factor for drawing
SoSFColor	baseColor
	set the base color which is multiplied with the overlay
SoSFBool	overwriteCurrentTimePoint
	Should the current time point be overwritten?
SoSFInt32	timePoint
	select the timepoint of the input image to render
SoSFInt32	maxTimePoint
	maximum timepoint value available (maximum of timePoint field)
SoSFEnum	lutPrecision
	defines the precision of the LUT
SoSFBool	useWorldCoords
	if this flag is on, the overlay can also render correct subimage overlays if the image is parallel to the image rendered on SoView2D
SoSFBool	applyLut
	if this flag is enabled, the overlay uses the lut that is present in the scene graph, default is true
SoSFBool	isCheckerTiling
	If enabled, draws a checkerboard tile each.
SoSFInt32	checkerTileSize
	The size of the checkerboard tiles.
SoSFBool	areCheckerTilesInverted
	Invert the checkerboard with this flag.
Protected Member Functions
virtual	~SoView2DOverlay ()
	Destructor.
virtual int	getTimePoint (View2DSliceList *slicelist, int slice)
	Returns the current timepoint which is either the actual shown timepoint or the timepoint overwritten by the field overwriteTimePoint; The slice parameter is not used in the standard implementation but can be necessary in derived classes.
Protected Attributes
ml::LUTData< MLuint8 > *	_lutData
	the lut data that is rendered
ml::LUTFunction *	_lutFunction
	the lut from the scene, stored by GLRender
bool	_reloadData
	flag if data needs to be reloaded
int	_id
	id for texture caching
int	_oldTimePoint
	previous timepoint
bool	_oldUseWorldCoords
	previous world coord flag
unsigned int	_imageSerial
	serial number of last input image

Detailed Description

Draws an overlay image on the SoView2D.

SoView2DOverlay is derived from SoView2DCallback to allow others to register with the callback

Author:: Florian Link

Definition at line 43 of file SoView2DOverlay.h.

Constructor & Destructor Documentation

SoView2DOverlay::SoView2DOverlay ( )

Constructor.

virtual SoView2DOverlay::~SoView2DOverlay ( ) [protected, virtual]

Destructor.

Member Function Documentation

virtual void SoView2DOverlay::draw	(	View2DSliceList *	dsl,
		View2DSlice *	dslice,
		int	slice
	)		`[virtual]`

reimplemented from SoView2DExtension

Reimplemented from SoView2DCallback.

virtual void SoView2DOverlay::endDrawing ( View2DSliceList * slicelist ) [virtual]

reimplemented from SoView2DExtension

Reimplemented from SoView2DExtension.

virtual bool SoView2DOverlay::evalEvent	(	SoView2D *	view2d,
		View2DSliceList *	slicelist,
		View2DEvent *	ec,
		View2DEventPhase	phase
	)		`[virtual]`

reimplemented from SoView2DExtension

Reimplemented from SoView2DCallback.

virtual int SoView2DOverlay::getTimePoint	(	View2DSliceList *	slicelist,
		int	slice
	)		`[protected, virtual]`

Returns the current timepoint which is either the actual shown timepoint or the timepoint overwritten by the field overwriteTimePoint; The slice parameter is not used in the standard implementation but can be necessary in derived classes.

void SoView2DOverlay::GLRender ( SoGLRenderAction * action ) [virtual]

reimplemented from SoNode, stores the LUT for later rendering

Reimplemented from SoView2DExtension.

static void SoView2DOverlay::initClass ( ) [static]

inventor runtime type system

Reimplemented from SoView2DCallback.

virtual void SoView2DOverlay::startDrawing ( View2DSliceList * slicelist ) [virtual]

reimplemented from SoView2DExtension

Reimplemented from SoView2DExtension.