allows changing the current slice of the SoView2D with mouse movement and mousewheel More...

#include <SoView2DSlicer.h>

Inheritance diagram for SoView2DSlicer:

Public Member Functions
	SoView2DSlicer ()
	Constructor.
void	updateValues () override
	setup code
bool	evalEvent (SoView2D view2d, View2DSliceList slicelist, View2DEvent *ec, View2DEventPhase phase) override
	reimplemented from SoView2DExtension
bool	modifyStartSlice (SoView2D *view2d, int offset)
	Add offset to start slice/time point, returns true if the value was changed:
Public Member Functions inherited from SoView2DInteractionExtension
	SoView2DInteractionExtension (const std::string &actionID, bool positionSensitive=true)
	SoView2DInteractionExtension ()
	Constructor.
bool	implementsManagedInteractionAndClassicEventHandling () const override
Public Member Functions inherited from SoView2DExtension
	SoView2DExtension ()
	Constructor.
void	init ()
	setup internal state
virtual void	draw (View2DSliceList slicelist, View2DSlice slice, int sliceZ)
	Called by the SoView2D for each slice that is rendered.
virtual void	startDrawing (View2DSliceList *)
virtual void	endDrawing (View2DSliceList *)
virtual void	overwriteDrawingSettings (SoView2DDrawingSettings &)
View2DEvent *	getEvent ()
	get the current event (when inside of evalEvent)
float	getSelectDist ()
	Set the distance tolerance on hit checking in pixels.
bool	isPointInsideDeviceRect (float pointX, float pointY, float centerX, float centerY, float hitRectangleSize=0.0)
void	drawMiniRect (float xp, float yp, float ext, float lineWidth=1.f)
	Draws a small rectangle with given half side length and a line width.
void	drawDashedMiniRect (float xp, float yp, float ext, float lineWidth)
void	drawFilledMiniRect (float xp, float yp, float ext, float lineWidth=1.f)
	Draws a small filled rectangle with given half side length.
void	drawMiniTriangle (float xp, float yp, float ext, float lineWidth=1.f)
	Draws a small triangle with given center point, half height and line width.
void	drawFilledMiniTriangle (float xp, float yp, float ext, float lineWidth=1.f)
	Draws a small filled triangle with given center point and half height.
void	drawMiniCircle (float xp, float yp, float ext, float lineWidth=1.f)
	Draws a small circle with given center point and radius.
void	drawFilledMiniCircle (float xp, float yp, float ext, float lineWidth=1.f)
	Draws a small filled circle with given center point and radius.
void	drawFixedSizeMiniCircleAt (float xp, float yp)
	Draws a fixed size small circle at the given position.
void	drawVoxelBorder (View2DSlice *slice, float vx, float vy, float vz)
	surround the given voxel with a border
int	getX ()
	get the x device position of current event, only returns valid result when called inside of evalEvent()
int	getY ()
	get the y device position of current event, only returns valid result when called inside of evalEvent()
virtual bool	isDrawingOn ()
	check if drawing is on
virtual bool	isEditingOn ()
	check if editing is on
virtual bool	isFixZOn ()
	check if z should stay fixed
virtual bool	isClipToSlice ()
	check if the image is clipped to slice
virtual void	fieldChanged (SoSensor *sensor)
	handle if any field has changed
bool	isCreateNewMode ()
	check if extension is in createNewMode
void	setCreateNewMode (bool flag)
	set this extension to create new objects
bool	isCreateNewModeRequest ()
	check if extension has a request for createNewMode
void	setCreateNewModeRequest (bool flag)
	set that extension want to become createNewMode
virtual bool	isActive ()
	returns if the extension is active (derive this method in child) (in createNewMode or with a selected object)(called by SoView2D)
virtual void	deleteSelectedObject ()
	deletes the currently active object (derive this method in child) (called by SoView2D)
virtual void	getStatusString (SbString &status)
	get the current status of this extension
virtual bool	evaluateEvent (SoView2D view2d, View2DEvent ec)
virtual bool	ignoreEvent (View2DEvent *ec)
	Return true if ec has been handled before and if ignoreHandledEvents is True.
bool	wantsMouseOverUpdates () const
	public access to _wantsMouseOverUpdateEvents
virtual void	consumeEvent (View2DEvent *ec, bool handled=TRUE)
	Set handled-flag of ec to true (= consumed) if handled is True and setEventHandled is True.
int	getSelectedModifierMask ()
int	getSelectedIgnoreMask ()
SoPointingAction::Trigger	getPointingActionTriggerFromFields ()
	Get the trigger that matches the button/modifier field state.
Public Member Functions inherited from SoInteractionProviderNode
	SoInteractionProviderNode ()
	~SoInteractionProviderNode () override
	Destructor.
std::string	getID () const override
void	objRef () override
void	objUnref () override
Public Member Functions inherited from SoInteractionOwner
	SoInteractionOwner ()
	Default constructor.
	~SoInteractionOwner () override
	The destructor will destroy all interactions created with this object as owner.
std::list< SoInteraction * >	getInteractions (SoState *state) override
	Returns the list of all interactions of this provider.
void	pointerPosition (SoState *state, const SoPointerPosition &pos) override
	Same as below, with additional SoState argument. By default, simply calls the below version.
void	pointerLeftWindow (SoState *state) override
	Same as below, with additional SoState argument. By defaults, simply calls the below version.
void	addListener (SoInteractionOwnerListenerInterface *listener)
	Adds a listener object that is notified of changes in the interaction list.
void	removeListener (SoInteractionOwnerListenerInterface *listener)
	Removes a listener object that was notified of changes in the interaction list.
Public Member Functions inherited from SoInteractionProvider
	SoInteractionProvider ()
	Default constructor.
virtual	~SoInteractionProvider ()
template<class T>
std::list< T * >	getInteractionsOfType (SoState *state)
	Returns list of interactions of a specific type.
virtual std::list< SoCommandAction * >	getCommandActions (SoState *state)
virtual std::list< SoPointingAction * >	getPointingActions (SoState *state)
virtual std::list< SoOffsetAction * >	getOffsetActions (SoState *state)

Static Public Member Functions
static void	initClass ()
	inventor runtime type system
static bool	modifyTimePoint (SoView2D *view2d, int offset)
Static Public Member Functions inherited from SoView2DInteractionExtension
static void	initClass ()
	Initializes this class.
Static Public Member Functions inherited from SoView2DExtension
static void	initClass ()
	Initializes this class.
static float	snapToPixelCenter (float coordinateComponent)
	Snaps the coordinate component to the pixel center.
static void	fieldChangedCB (void data, SoSensor sensor)
	inventor callbacks if any field has changed, calls fieldChanged
static bool	isImageParallel (SoSFMLImage image, View2DSliceList dsl)
	Return true if `image` is parallel to the image of the slice list up to slice thickness.
static void	enableLineStippling (const SoSFEnum &lineStyleField)
	Set/reset stippling pattern.
static void	disableLineStippling (const SoSFEnum &lineStyleField)
static void	getAxisOrientation (int axis, SbMatrix &matrix, char &negativeResult, char &positiveResult)
	Geometry helpers.
static float	pointToLineDistance (SbVec3f point, SbVec3f line1, SbVec3f line2)
	calculate 3D point to line distance
static float	pointToLineDistance (SbVec2f point, SbVec2f line1, SbVec2f line2)
	calculate 2D point to line distance
static Sign	edgeIntersectWithPlane (const SbVec3f &v1, const SbVec3f &v2, const SbPlane &plane, SbVec3f &intersect)
	intersect given edge from `v1` to `v2` with given plane, returns sign and `intersect` point
Static Public Member Functions inherited from SoInteractionProviderNode
static void	initClass ()
	Initializes this class.
static void	registerInteractionProviderNode (SoType type, GetProviderFunc func)
	Registers a function to obtain a SoInteractionProvider from a SoNode.
static SoInteractionProvider *	getInteractionProvider (SoNode *node)

Public Attributes
SoSFFloat	sensitivity
	sensitivity used for sliding
SoSFBool	permitInteractionOutsideImage
	Field for toggling the interaction out of the image on/off.
SoSFInt32	stepSize
	Increment slice by this many slices on each mouse wheel action.
Public Attributes inherited from SoView2DInteractionExtension
SoSFTrigger	singleClicked
SoSFTrigger	doubleClicked
	the same for the second click in a row
Public Attributes inherited from SoView2DExtension
SoSFColor	color
	color that should be used for drawing
SoSFBool	drawingOn
	flag if the extension should draw, needs to be checked inside of the draw() method
SoSFBool	editingOn
	flag if the extension should edit objects on mouse events, needs to be checked inside of the evalEvent() method
SoSFBool	maskValid
	flag if the event mask is valid.
SoSFFloat	selectionTolerance
	the selection tolerance in pixels
SoSFBool	wantsAllEvents
SoSFBool	wantsKeyEvents
	flag if keyboard events should be passed to evalEvent()
SoSFBool	wantsMouseWheelEvents
	flag if MouseWheel events should be passed to evalEvent()
SoSFBool	setEventHandled
	Set event handled if it is indeed handled by this extension.
SoSFBool	ignoreHandledEvents
	Ignore events, that have been handled by previous extensions.
SoSFEnum	button1
	mouse mask for button1
SoSFEnum	button2
	mouse mask for button2
SoSFEnum	button3
	mouse mask for button3
SoSFEnum	shift
	shift modifier for mouse mask
SoSFEnum	control
	shift control for mouse mask
SoSFEnum	alt
	shift alt for mouse mask
SoSFBool	needsValidVoxel
	sets if a valid voxel must be hit to get evalEvent() calls
SoSFBool	renderOnSlab
	defines if the extension should be rendered on all slab slices
SoSFBool	createNewMode
	flag if extension is in createNewMode
SoSFTrigger	createNewModeRequest
SoSFBool	clipToSlice
	Flag to clip drawing to slice.
SoSFEnum	cursorShape
SoSFBool	fixZOn
	DEPRECATED flag that indicates that the extension should fix the z value, only used in SoView2DRectangle.
Public Attributes inherited from SoInteractionProviderNode
SoSFString	instanceName
	Defines interface field to store the instance name.
SoSFString	interactionProviderID
	This field overrides the instanceName as providerID if specified.

Protected Member Functions
void	doSliceByMouse (float diffY, SoView2D *view2d)
void	editingOnChanged (SoField *field) override
	called when editingOn field is touched:
virtual void	sensitivityChanged (SoField *field)
	called when sensitivity field is touched:

void	startPressAt (const SoPointerPosition &pos) override
void	dragMoveTo (const SoPointerPosition &pos) override
SoPointingAction *	endPress (int clickCount) override
Protected Member Functions inherited from SoView2DInteractionExtension
	~SoView2DInteractionExtension () override
	destructor
bool	isValidLocation (const SoPointerPosition &pos)
	return true if the position is inside the image or needsValidVoxel is not set
virtual bool	shouldPointingActionBeEnabled ()
void	buttonMaskChanged (SoField *field) override
	called when one of the button/modifier fields is touched:
virtual int	getCurrentCursor (SoViewerProxy *viewerProxy)
virtual bool	isSensitiveAt (const SoPointerPosition &)
virtual void	setHighlightAt (const SoPointerPosition &)
virtual void	unsetHighlight ()
virtual int	getNumInteractionModes () const
virtual void	setInteractionMode (int)
Protected Member Functions inherited from SoView2DExtension
virtual void	createNewModeRequestTriggered (SoField *)
	called when createNewModeRequest field ist touched:
	~SoView2DExtension () override
	destructor
void	GLRender (SoGLRenderAction *action) override
	Inventor actions.
void	callback (SoCallbackAction *action) override
void	handleEvent (SoHandleEventAction *action) override
void	getMatrix (SoGetMatrixAction *action) override
void	getBoundingBox (SoGetBoundingBoxAction *action) override
void	pick (SoPickAction *action) override
void	doAction (SoAction *action) override
Protected Member Functions inherited from SoInteractionOwner
virtual void	pointerPosition (const SoPointerPosition &)
	Override this if you always need to be informed of the current mouse cursor position.
virtual void	pointerLeftWindow ()
	This is called when the mouse cursor leaves the window.
bool	hasInteractions () const
	Returns whether there are any actions defined by this owner.
template<class T>
bool	hasInteractionsOfType () const
	Same as above, but asking for a specific type of interaction.
void	addPointingAction (SoPointingAction *)
void	addCommandAction (SoCommandAction *)
void	addOffsetAction (SoOffsetAction *)

Protected Attributes
float	_oldY
	previous y coordinate of mouse
float	_sumY
	current sum of y movement since last slice change
unsigned	_prevWheelCode
	previous wheel rotation orientation & sign code
int	_sumWheel
	current sum of 1/8 degrees of wheel rotation
SoView2DSlicerOffsetAction *	_offsetAction
	Additional offset action for changing start slice/time point.
Protected Attributes inherited from SoView2DInteractionExtension
SoPointingAction *	_pointingAction
Protected Attributes inherited from SoView2DExtension
SoNodeSensor *	_nodeSensor
	node sensor that is used to notice field changes
float	_rgbColor [4]
	Color of the object, update on each field change by _nodeSensor.
bool	_wantsMouseOverUpdateEvents
	set this flag to receive mouse over events while the extension is active

Additional Inherited Members
Public Types inherited from SoView2DExtension
enum	Sign { ZERO , NEGATIVE , POSITIVE }
	defines the sign of a number, with zero as an extra value More...
typedef SoInteractionProvider (	GetProviderFunc) (SoNode *)

Detailed Description

allows changing the current slice of the SoView2D with mouse movement and mousewheel

Definition at line 24 of file SoView2DSlicer.h.

Constructor & Destructor Documentation

◆ SoView2DSlicer()

SoView2DSlicer::SoView2DSlicer ( )

Constructor.

Member Function Documentation

◆ doSliceByMouse()

void SoView2DSlicer::doSliceByMouse	(	float	diffY,
		SoView2D *	view2d )

protected

◆ dragMoveTo()

void SoView2DSlicer::dragMoveTo ( const SoPointerPosition & pos )

overrideprotectedvirtual

Reimplemented from SoView2DInteractionExtension.

◆ editingOnChanged()

void SoView2DSlicer::editingOnChanged ( SoField * field )

overrideprotectedvirtual

called when editingOn field is touched:

Reimplemented from SoView2DInteractionExtension.

◆ endPress()

SoPointingAction * SoView2DSlicer::endPress ( int clickCount )

overrideprotectedvirtual

Reimplemented from SoView2DInteractionExtension.

◆ evalEvent()

bool SoView2DSlicer::evalEvent	(	SoView2D *	view2d,
		View2DSliceList *	slicelist,
		View2DEvent *	ec,
		View2DEventPhase	phase )

overridevirtual

reimplemented from SoView2DExtension

Reimplemented from SoView2DExtension.

◆ initClass()

void SoView2DSlicer::initClass ( )

static

inventor runtime type system

◆ modifyStartSlice()

bool SoView2DSlicer::modifyStartSlice	(	SoView2D *	view2d,
		int	offset )

Add offset to start slice/time point, returns true if the value was changed:

◆ modifyTimePoint()

bool SoView2DSlicer::modifyTimePoint	(	SoView2D *	view2d,
		int	offset )

static

◆ sensitivityChanged()

virtual void SoView2DSlicer::sensitivityChanged ( SoField * field )

protectedvirtual

called when sensitivity field is touched:

◆ startPressAt()

void SoView2DSlicer::startPressAt ( const SoPointerPosition & pos )

overrideprotectedvirtual

interface forwarded from SoPointingAction:

Reimplemented from SoView2DInteractionExtension.

◆ updateValues()

void SoView2DSlicer::updateValues ( )

overridevirtual

setup code

Reimplemented from SoView2DExtension.

Member Data Documentation

◆ _offsetAction

SoView2DSlicerOffsetAction* SoView2DSlicer::_offsetAction

protected

Additional offset action for changing start slice/time point.

Definition at line 81 of file SoView2DSlicer.h.

◆ _oldY

float SoView2DSlicer::_oldY

protected

previous y coordinate of mouse

Definition at line 72 of file SoView2DSlicer.h.

◆ _prevWheelCode

unsigned SoView2DSlicer::_prevWheelCode

protected

previous wheel rotation orientation & sign code

Definition at line 76 of file SoView2DSlicer.h.

◆ _sumWheel

int SoView2DSlicer::_sumWheel

protected

current sum of 1/8 degrees of wheel rotation

Definition at line 78 of file SoView2DSlicer.h.

◆ _sumY

float SoView2DSlicer::_sumY

protected

current sum of y movement since last slice change

Definition at line 74 of file SoView2DSlicer.h.

◆ permitInteractionOutsideImage

SoSFBool SoView2DSlicer::permitInteractionOutsideImage

Field for toggling the interaction out of the image on/off.

Definition at line 39 of file SoView2DSlicer.h.

◆ sensitivity

SoSFFloat SoView2DSlicer::sensitivity

sensitivity used for sliding

Definition at line 30 of file SoView2DSlicer.h.

◆ stepSize

SoSFInt32 SoView2DSlicer::stepSize

Increment slice by this many slices on each mouse wheel action.

Definition at line 53 of file SoView2DSlicer.h.

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

MeVisLab/Standard/Sources/Inventor/SoView2D/extensions/SoView2DSlicer.h

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SoView2DSlicer()

Member Function Documentation

◆ doSliceByMouse()

◆ dragMoveTo()

◆ editingOnChanged()

◆ endPress()

◆ evalEvent()

◆ initClass()

◆ modifyStartSlice()

◆ modifyTimePoint()

◆ sensitivityChanged()

◆ startPressAt()

◆ updateValues()

Member Data Documentation

◆ _offsetAction

◆ _oldY

◆ _prevWheelCode

◆ _sumWheel

◆ _sumY

◆ permitInteractionOutsideImage

◆ sensitivity

◆ stepSize