Striped ball you can rotate or scale uniformly by dragging with the mouse. More...

#include <Inventor/draggers/SoTrackballDragger.h>

Inheritance diagram for SoTrackballDragger:

Public Member Functions
virtual SoType	getTypeId () const
	Returns the type identifier for this specific instance.

virtual const SoNodekitCatalog *	getNodekitCatalog () const
	Returns the SoNodekitCatalog for this instance.

	SoTrackballDragger ()
	Constructor.

SbBool	isAnimationEnabled ()
	Returns whether spin animation is enabled.

void	setAnimationEnabled (SbBool newVal)
	Enables/disables spin animation.

Public Member Functions inherited from SoDragger
void	addStartCallback (SoDraggerCB f, void userData=NULL)
	Adds start callback.

void	removeStartCallback (SoDraggerCB f, void userData=NULL)
	Removes start callback.

void	addMotionCallback (SoDraggerCB f, void userData=NULL)
	Adds motion callback.

void	removeMotionCallback (SoDraggerCB f, void userData=NULL)
	Removes motion callback.

void	addFinishCallback (SoDraggerCB f, void userData=NULL)
	Adds finish callback.

void	removeFinishCallback (SoDraggerCB f, void userData=NULL)
	Removes finish callback.

void	addValueChangedCallback (SoDraggerCB f, void userData=NULL)
	Adds value-changed callback.

void	removeValueChangedCallback (SoDraggerCB f, void userData=NULL)
	Removes value-changed callback.

void	setMinGesture (int pixels)
	Sets the number of pixels of movement required to initiate a constraint gesture.

void	setMinGesture (float pixels)
	Float version of setMinGesture.

int	getMinGesture () const
	Gets the number of pixels of movement required to initiate a constraint gesture.

float	getMinGestureFloat () const
	Float version of getMinGesture.

SbBool	enableValueChangedCallbacks (SbBool newVal)
	You can temporarily disable a dragger's valueChangedCallbacks.

void	setTrackerDirectMode (TrackerDirectMode mode=DEFAULT)
	Sets the tracker direct mode for this dragger (see description above).

TrackerDirectMode	getTrackerDirectMode () const
	Get the current tracker direct mode for this dragger.

void	setMotionMatrix (const SbMatrix &newMatrix)
	Set the motion matrix.

const SbMatrix &	getMotionMatrix ()
	Get the motion matrix.

Public Member Functions inherited from SoInteractionKit
virtual SbBool	setPartAsPath (const SbName &partName, SoPath *surrogatePath)
	Sets any public part in the interaction kit as a "surrogate" path instead.

virtual SbBool	affectsState () const
	Returns TRUE if a node has an effect on the state during traversal.

Public Member Functions inherited from SoBaseKit
	SoBaseKit ()
	Constructor.

virtual SoNode *	getPart (const SbName &partName, SbBool makeIfNeeded)
	Searches the nodekit catalog (and those of all nested nodekits) for the part named partName.

template<typename PartType >
PartType *	getPart (const SbName &partName)
	Like getPart(const SbName&,SbBool) but casts the returned part to the specified type and sets the makeIfNeeded parameter to TRUE.

template<typename PartType >
PartType *	checkPart (const SbName &partName)
	Like getPart(const SbName&,SbBool) but casts the returned part to the specified type and sets the makeIfNeeded parameter to FALSE.

SbString	getPartString (const SoBase *part)
	Given a node or a path to a node, checks if the part exists in the nodekit, in a nested nodekit, or an element of a list part.

virtual SoNodeKitPath *	createPathToPart (const SbName &partName, SbBool makeIfNeeded, const SoPath *pathToExtend=NULL)
	Returns a path that begins at this nodekit and ends at partName.

virtual SbBool	setPart (const SbName &partName, SoNode *newPart)
	Inserts the given node (not a copy) as the new part specified by partName.

SoNONUNICODE SbBool	set (char *nameValuePairListString)
	This function allows field values of parts (nodes) to be set in several different parts simultaneously.

SbBool	set (const SbString &nameValuePairListString)
	This function allows field values of parts (nodes) to be set in several different parts simultaneously.

SoNONUNICODE SbBool	set (const char partNameString, const char parameterString)
	This function allows field values of parts (nodes) to be set.

SbBool	set (const SbString &partNameString, const SbString &parameterString)
	This function allows field values of parts (nodes) to be set.

Public Member Functions inherited from SoNode
virtual void	setOverride (const SbBool state)
	Turns the override flag on or off.

virtual SbBool	isOverride () const
	Returns the state of the override flag.

virtual SoNode *	copy (SbBool copyConnections=FALSE) const
	Creates and returns an exact copy of the node.

virtual void	touch ()
	Marks an instance as modified, simulating a change to it.

Public Member Functions inherited from SoFieldContainer
void	setToDefaults ()
	Sets all fields in this object to their default values.

SbBool	hasDefaultValues () const
	Returns TRUE if all of the object's fields have their default values.

SbBool	fieldsAreEqual (const SoFieldContainer *fc) const
	Returns TRUE if this object's fields are exactly equal to fc's fields.

void	copyFieldValues (const SoFieldContainer *fc, SbBool copyConnections=FALSE)
	Copies the contents of fc's fields into this object's fields.

SoNONUNICODE SbBool	set (const char *fieldDataString)
	Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.

SbBool	set (const SbString &fieldDataString)
	Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.

void	get (SbString &fieldDataString)
	Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string.

virtual int	getFields (SoFieldList &list) const
	Appends references to all of this object's fields to resultList, and returns the number of fields appended.

virtual int	getAllFields (SoFieldList &list) const
	Returns a list of fields, including the eventIn's and eventOut's.

virtual SoField *	getField (const SbName &fieldName) const
	Returns a the field of this object whose name is fieldName.

virtual SoField *	getEventIn (const SbName &fieldName) const
	Returns a the eventIn with the given name.

virtual SoField *	getEventOut (const SbName &fieldName) const
	Returns the eventOut with the given name.

SbBool	getFieldName (const SoField *field, SbName &fieldName) const
	Returns the name of the given field in the fieldName argument.

SbBool	enableNotify (SbBool flag)
	Notification at this Field Container is enabled (if flag == TRUE) or disabled (if flag == FALSE).

SbBool	isNotifyEnabled () const
	Notification is the process of telling interested objects that this object has changed.

virtual void	setUserData (void *data)
	Sets application data.

void *	getUserData (void) const
	Gets user application data.

Public Member Functions inherited from SoBase
virtual SbName	getName () const
	Returns the name of an instance.

virtual void	setName (const SbName &name)
	Sets the name of an instance.

void	setSynchronizable (const bool b)
	Sets this to be a ScaleViz synchronizable object.

bool	isSynchronizable () const
	Gets the ScaleViz synchronizable state of this object.

Public Member Functions inherited from SoRefCounter
void	ref () const
	Adds a reference to an instance.

void	unref () const
	Removes a reference from an instance.

void	unrefNoDelete () const
	unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero.

int	getRefCount () const
	Returns current reference count.

void	lock () const
	lock this instance.

void	unlock () const
	unlock this instance.

Public Member Functions inherited from SoTypedObject
SbBool	isOfType (const SoType &type) const
	Returns TRUE if this object is of the type specified in type or is derived from that type.

template<typename TypedObjectClass >
SbBool	isOfType () const
	Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class.

Public Member Functions inherited from SoGetView
	SoGetView ()
	Default constructor.

virtual	~SoGetView ()

virtual SbBool	getViewportIsEnabled () const
	Returns TRUE if SoGetView functionalities are enabled, FALSE otherwise.

virtual const SbVec2f	getViewportOrigin () const
	Returns SbViewportRegion origin.

virtual const SbVec2f	getViewportSize () const
	Returns SbViewportRegion size.

Static Public Member Functions
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

static const SoNodekitCatalog *	getClassNodekitCatalog ()
	Returns the SoNodekitCatalog for this class.

Static Public Member Functions inherited from SoDragger
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

static const SoNodekitCatalog *	getClassNodekitCatalog ()
	Returns the SoNodekitCatalog for this class.

static void	setMinScale (float newMinScale)
	Sets the smallest scale that any dragger will write.

static float	getMinScale ()
	Gets the smallest scale that any dragger will write.

static void	setInitialTrackerDirectMode (TrackerDirectMode mode=DEFAULT)
	Set the initial tracker direct mode for draggers not yet created.

static TrackerDirectMode	getInitialTrackerDirectMode ()
	Get the initial tracker direct mode.

Static Public Member Functions inherited from SoInteractionKit
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

static const SoNodekitCatalog *	getClassNodekitCatalog ()
	Returns the SoNodekitCatalog for this class.

Static Public Member Functions inherited from SoBaseKit
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

static const SoNodekitCatalog *	getClassNodekitCatalog ()
	Returns the SoNodekitCatalog for the class SoBaseKit.

static void	setSearchingChildren (SbBool newVal)
	Sets if nodekit children are searched during SoSearchAction traversal.

static SbBool	isSearchingChildren ()
	Returns TRUE if nodekit children are searched during SoSearchAction traversal.

Static Public Member Functions inherited from SoNode
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

static SoNode *	getByName (const SbName &name)
	A node's name can be set using SoBase::setName().

static int	getByName (const SbName &name, SoNodeList &list)
	A node's name can be set using SoBase::setName().

Static Public Member Functions inherited from SoFieldContainer
static SoType	getClassTypeId ()
	Returns the type of this class.

Static Public Member Functions inherited from SoBase
static SoType	getClassTypeId ()
	Returns type identifier for this class.

Static Public Member Functions inherited from SoTypedObject
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

Public Attributes
SoSFRotation	rotation
	Orientation of the dragger.

SoSFVec3f	scaleFactor
	Scale of the dragger.

Public Attributes inherited from SoDragger
SoSFBool	isActive
	TRUE when mouse is down and dragging, else FALSE.

SoSFBool	enableCallbacks
	If set to FALSE, motion, start and finish callbacks are disabled.

Public Attributes inherited from SoInteractionKit
SoSFEnum	boundingBoxCaching
	Set bounding box caching mode.

SoSFEnum	renderCulling
	Set render culling mode.

SoSFEnum	pickCulling
	Set pick caching mode.

SoDEPRECATED SoSFEnum	renderCaching
	Set render caching mode.

Public Attributes inherited from SoBaseKit
SoSFBool	boundingBoxIgnoring
	Whether to ignore this node during bounding box traversal.

Additional Inherited Members
Public Types inherited from SoDragger
enum	TrackerDirectMode { NONE , MOVE , ROTATE , FREE , DEFAULT }
	Tracker direct mode. More...

typedef void	SoDraggerCB(void userData, SoDragger dragger)
	Used in defining the callback function lists.

Public Types inherited from SoInteractionKit
enum	CacheEnabled { OFF , ON , AUTO }
	Possible values for caching. More...

Detailed Description

Striped ball you can rotate or scale uniformly by dragging with the mouse.

SoTrackballDragger is a ball wrapped in three circular stripes. The stripes are oriented like wheels that spin around the x, y, and z axes. Drag the stripes to rotate the trackball around those axes. You do not have to hit the lines; pick anywhere within the stripe's outline. To rotate the trackball freely in 3 dimensions, click the area between the stripes and then drag. An invisible but pickable sphere initiates this dragging. If the mouse is still moving when you release it, the trackball will continue to spin.

Press the <Control> key to scale the trackball uniformly instead of rotating. This behavior may be disabled by setting the environment variable OIV_DISABLE_DRAGGER_CTRL_KEY to false (see SoPreferences).

Press the <Shift> key and the user axis appears; this is a draggable axis with an extra stripe around it. Moving the mouse along the surface of the sphere drags the 'pole' of the axis. Release the <Shift> key and the user axis remains; drag the new stripe for constrained rotation around the user axis. To make the user axis disappear, press <Shift> and drag the pole to where two of other stripes intersect. This aligns the user axis with a primary axis, at which point the user axis disappears.

As you drag the trackball, it updates its rotation field, or its scaleFactor field if the <Control> key is down. As with all draggers, if you change the fields the dragger moves in response.

Remember: This is not an SoTransform ! . If you want to move other objects with this dragger, you can either:

Use an SoTrackballManip, which is subclassed from SoTransform. The manipulator creates one of these draggers and uses it as the interface to edit the manipulator's fields. (see the SoTrackballManip reference page).
Use field-to-field connections to connect the fields of this dragger to those of any SoTransformation node.

You can change the parts in any instance of this dragger using setPart(). The default part geometries are defined as resources for this SoTrackballDragger class. They are detailed in the Dragger Resources section of the online reference page for this class. You can make your program use different default resources for the parts by copying the file $OIVHOME/data/draggerDefaults/trackballDragger.iv into your own directory, editing the file, and then setting the environment variable SO_DRAGGER_DIR to be a path to that directory.

This dragger has both a default and a WYSIWYG version:

Default Dragger	WYSIWYG Dragger

See SoDragger for more information about using and customizing draggers, including code examples, using draggers in an immersive VR environment and using WYSIWYG draggers.

NOTES

SoTrackballDragger

SoCenterballDragger

is

FILE FORMAT/DEFAULT

boundingBoxCaching	AUTO
renderCulling	AUTO
pickCulling	AUTO
isActive	FALSE
rotation	0 0 1 0
scaleFactor	1 1 1
callbackList	NULL
surroundScale	NULL
antiSquish	AntiSquish {
	sizing LONGEST_DIAGONAL
	}
rotator	<trackballRotator resource>
rotatorActive	<trackballRotatorActive resource>
XRotator	<trackballXRotator resource>
XRotatorActive	<trackballXRotatorActive resource>
YRotator	<trackballYRotator resource>
YRotatorActive	<trackballYRotatorActive resource>
ZRotator	<trackballZRotator resource>
ZRotatorActive	<trackballZRotatorActive resource>
userAxis	<trackballUserAxis resource>
userAxisActive	<trackballUserAxisActive resource>
userRotator	<trackballUserRotator resource>
userRotatorActive	<trackballUserRotatorActive resource>

DRAGGER RESOURCES

Resource:	trackballRotator
Part:	rotator
Appearance:	Invisible but pickable sphere
Description:	Initiates unconstrained 3D rotation. Slightly smaller radius than the stripes, so you must pick between the stripes to use it.
Resource:	trackballRotatorActive
Part:	rotatorActive
Appearance:	Invisible sphere
Description:	Displayed during unconstrained 3D rotation.
Resource:	trackballXRotator
Part:	XRotator
Appearance:	White outline of a stripe aligned with the X axis.
Description:	Pick this to initiate constrained rotation about the X axis.
Resource:	trackballXRotatorActive
Part:	XRotatorActive
Appearance:	Yellow version of the regular XRotator
Description:	Displayed during constrained rotation about the X axis.
Resource:	trackballYRotator
Part:	YRotator
Appearance:	White outline of a stripe aligned with the Y axis.
Description:	Pick this to initiate constrained rotation about the Y axis.
Resource:	trackballYRotatorActive
Part:	YRotatorActive
Appearance:	Yellow version of the regular YRotator
Description:	Displayed during constrained rotation about the Y axis.
Resource:	trackballZRotator
Part:	ZRotator
Appearance:	White outline of a stripe aligned with the Z axis.
Description:	Pick this to initiate constrained rotation about the Z axis.
Resource:	trackballZRotatorActive
Part:	ZRotatorActive
Appearance:	Yellow version of the regular ZRotator
Description:	Displayed during constrained rotation about the Z axis.
Resource:	trackballUserAxis
Part:	userAxis
Appearance:	Thin purple line
Description:	Displays the user axis. Dragging the userRotator rotates about this line.
Resource:	trackballUserAxisActive
Part:	userAxisActive
Appearance:	Thin purple line
Description:	Displays the user axis. Dragging the userRotator rotates about this line.
Resource:	trackballUserRotator
Part:	userRotator
Appearance:	Transparent green stripe circling the user axis.
Description:	Pick to initiate constrained rotation about the user axis.
Resource:	trackballUserRotatorActive
Part:	userRotatorActive
Appearance:	Brighter green version of the regular userRotator
Description:	Displayed during constrained rotation about the user axis.

CATALOG PARTS

Part Name	Part Type	Default Type	NULL Default
callbackList	NodeKitListPart	–	yes
surroundScale	SurroundScale	–	yes
antiSquish	AntiSquish	–	no
rotator	Separator	–	yes
rotatorActive	Separator	–	yes
XRotator	Separator	–	yes
XRotatorActive	Separator	–	yes
YRotator	Separator	–	yes
YRotatorActive	Separator	–	yes
ZRotator	Separator	–	yes
ZRotatorActive	Separator	–	yes
userAxis	Separator	–	yes
userAxisActive	Separator	–	yes
userRotator	Separator	–	yes
userRotatorActive	Separator	–	yes

Extra Information for List Parts from Above Table

Part Name	Container Type	Possible Types
callbackList	Separator	Callback, EventCallback

Constructor & Destructor Documentation

◆ SoTrackballDragger()

SoTrackballDragger::SoTrackballDragger ( )

Constructor.

Member Function Documentation

◆ getClassNodekitCatalog()

static const SoNodekitCatalog * SoTrackballDragger::getClassNodekitCatalog ( )

static

Returns the SoNodekitCatalog for this class.

◆ getClassTypeId()

static SoType SoTrackballDragger::getClassTypeId ( )

static

Returns the type identifier for this class.

◆ getNodekitCatalog()

virtual const SoNodekitCatalog * SoTrackballDragger::getNodekitCatalog ( ) const

virtual

Returns the SoNodekitCatalog for this instance.

Reimplemented from SoDragger.

◆ getTypeId()

virtual SoType SoTrackballDragger::getTypeId ( ) const

virtual

Returns the type identifier for this specific instance.

Reimplemented from SoDragger.

◆ isAnimationEnabled()

SbBool SoTrackballDragger::isAnimationEnabled ( )

inline

Returns whether spin animation is enabled.

Definition at line 348 of file SoTrackballDragger.h.

◆ setAnimationEnabled()

void SoTrackballDragger::setAnimationEnabled ( SbBool newVal )

Enables/disables spin animation.

When spin animation is enabled, if the mouse is moving while you release it, the trackball will continue to spin afterwards. By default, spin animation is enabled.

Member Data Documentation

◆ rotation

SoSFRotation SoTrackballDragger::rotation

Orientation of the dragger.

Definition at line 334 of file SoTrackballDragger.h.

◆ scaleFactor

SoSFVec3f SoTrackballDragger::scaleFactor

Scale of the dragger.

Note: The dragger will always scale uniformly in all 3 dimensions, using the highest value in the scaleFactor field. E.g. (10, 1, 1) is equivalent to (10, 10, 10). This behavior is consistent with scaling the dragger in user interactions.

Definition at line 343 of file SoTrackballDragger.h.

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

Inventor/draggers/SoTrackballDragger.h

Public Member Functions

Static Public Member Functions

Public Attributes

Additional Inherited Members