SoCenterballDragger Class Reference

Striped ball you rotate and re-center by dragging with the mouse. More...

#include <Inventor/draggers/SoCenterballDragger.h>

Inheritance diagram for SoCenterballDragger:

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.
	SoCenterballDragger ()
	Constructor.
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 centerball dragger.
SoSFVec3f	center
	Center of rotation and scale of the centerball 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 rotate and re-center by dragging with the mouse.

SoCenterballDragger is a composite dragger. Its shape is a sphere defined by three intersecting circles. Where the circles intersect (at the ends of the x, y and z axes) there are sets of small green crosshairs. Dragging a pair of crosshairs translates the entire centerball within the plane of the crosshairs. The interface of the sphere and circles is just like SoTrackballDragger. Dragging a circle rotates about a constrained axis and dragging the areas between them rotates the sphere freely about the center. An invisible but pickable sphere initiates the free-rotation dragging.

When you drag the crosshairs, the center field is updated; there is no translation field. Dragging other parts of the centerball updates the rotation field. As with all draggers, if you change the fields the dragger moves in response.

The draggers used for the crosshair parts are SoTranslate2Draggers, so pressing the <Shift> key allows you to constrain motion to slide along either the local x axis or y axis of that crosshair. The direction is determined by your initial mouse gesture after pressing the key. Releasing the key removes the constraint.

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

• Use an SoCenterballManip, 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 SoCenterballManip 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 SoCenterballDragger 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/centerballDragger.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.

FILE FORMAT/DEFAULT

CenterballDragger {

boundingBoxCaching	AUTO
renderCulling	AUTO
pickCulling	AUTO
isActive	FALSE
rotation	0 0 1 0
center	0 0 0
callbackList	NULL
translateToCenter	MatrixTransform {
	matrix
	1 0 0 0
	0 1 0 0
	0 0 1 0
	0 0 0 1
	}
surroundScale	NULL
antiSquish	AntiSquish {
	sizing LONGEST_DIAGONAL
	}
lightModel	LightModel {
	model PHONG
	}
XAxis	<centerballXAxis resource>
YAxis	<centerballYAxis resource>
ZAxis	<centerballZAxis resource>
rotator	RotateSphericalDragger {
	}
YRotator	RotateCylindricalDragger {
	}
ZCenterChanger	Translate2Dragger {
	}
ZRotator	RotateCylindricalDragger {
	}
YCenterChanger	Translate2Dragger {
	}
XCenterChanger	Translate2Dragger {
	}
XRotator	RotateCylindricalDragger {
	}
rotator.rotator	<centerballRotator resource>
rotator.rotatorActive	<centerballRotatorActive resource>
XRotator.rotator	<centerballStripe resource>
YRotator.rotator	<centerballStripe resource>
ZRotator.rotator	<centerballStripe resource>
XRotator.rotatorActive	<centerballStripeActive resource>
YRotator.rotatorActive	<centerballStripeActive resource>
ZRotator.rotatorActive	<centerballStripeActive resource>
XCenterChanger.translator	<centerballCenterChanger resource>
YCenterChanger.translator	<centerballCenterChanger resource>
ZCenterChanger.translator	<centerballCenterChanger resource>
XCenterChanger.translatorActive	<centerballCenterChangerActive resource>
YCenterChanger.translatorActive	<centerballCenterChangerActive resource>
ZCenterChanger.translatorActive	<centerballCenterChangerActive resource>
XCenterChanger.xAxisFeedback	<centerballCenterXAxisFeedback resource>
YCenterChanger.xAxisFeedback	<centerballCenterXAxisFeedback resource>
ZCenterChanger.xAxisFeedback	<centerballCenterXAxisFeedback resource>
XCenterChanger.yAxisFeedback	<centerballCenterYAxisFeedback resource>
YCenterChanger.yAxisFeedback	<centerballCenterYAxisFeedback resource>
ZCenterChanger.yAxisFeedback	<centerballCenterYAxisFeedback resource>

}

DRAGGER RESOURCES

Resource:	centerballRotator
Part:	rotator.rotator
Appearance:	Invisible but pickable sphere
Description:	When picked, initiates free rotation about the center point. Slightly smaller radius than the stripes, so you must pick between the stripes to use it.
Resource:	centerballRotatorActive
Part:	rotator.rotatorActive
Appearance:	Invisible sphere
Description:	Displayed during unconstrained 3D rotation instead of centerballRotator.
Resource:	centerballStripe
Parts:	XRotator.rotator<BR> YRotator.rotator<BR> ZRotator.rotator
Appearance:	White circle aligned with rotation axis.
Description:	When picked, initiates constrained rotation. Each rotator rotates locally about its Y axis. The centerball contains private transform parts that orient the draggers along three different axes.
Resource:	centerballStripeActive
Parts:	XRotator.rotatorActive<BR> YRotator.rotatorActive<BR> ZRotator.rotatorActive
Appearance:	White circle aligned with the rotation axis.
Description:	Displayed during constrained rotation instead of the rotator part. The centerball orients the draggers along three different axes.
Resource:	centerballCenterChanger
Parts:	XCenterChanger.translator<BR> YCenterChanger.translator<BR> ZCenterChanger.translator
Appearance:	Two sets of small green crosshairs, one located at each intersection of axis and ball.
Description:	When picked, initiates 2D translation of ball through space. Edits the center field, which becomes center for subsequent rotations. Each translator works locally in its X-Y plane. The centerball containsprivate transform parts that place the draggers along three different axes.
Resource:	centerballCenterChangerActive
Parts:	XCenterChanger.translatorActive<BR> YCenterChanger.translatorActive<BR> ZCenterChanger.translatorActive
Appearance:	Yellow version of centerballCenterChanger.
Description:	Displayed during 2D translation instead of regular translator part. The centerball places the draggers along three different axes.
Resource:	centerballCenterXAxisFeedback
Parts:	XCenterChanger.xAxisFeedback<BR> YCenterChanger.xAxisFeedback<BR> ZCenterChanger.xAxisFeedback
Appearance:	Double-headed purple arrows, one located at each intersection of axis and ball. Located atop X axis of crosshair.
Description:	Only shown if dragger is moving and the axis is a permitted direction of motion. When pressing <shift>, motion is constrained, and this is displayed only if the primary motion is in the X direction of the child dragger's local space. The centerball places the draggers along three different axes; so not all of these parts aligns with the X axis in centerball space.
Resource:	centerballCenterYAxisFeedback
Parts:	XCenterChanger.yAxisFeedback<BR> YCenterChanger.yAxisFeedback<BR> ZCenterChanger.yAxisFeedback
Appearance:	Double-headed purple arrows, one located at each intersection of axis and ball. Located atop Y axis of crosshair.
Description:	Only shown if dragger is moving and the axis is a permitted direction of motion. When pressing <shift>, motion is constrained, and this is displayed only if the primary motion is in the Y direction of the child dragger's local space. The centerball places the draggers along three different axes; so not all of these parts aligns with the Y axis in centerball space.
Resource:	centerballXAxis
Part:	XAxis
Appearance:	Thin yellow line connecting left and right crosshairs.
Description:	Feedback shown alone during rotation about X axis; displayed with centerballYAxis and centerballZAxis while center is dragged.
Resource:	centerballYAxis
Part:	YAxis
Appearance:	Thin yellow line connecting lower and upper crosshairs.
Description:	Feedback shown alone during rotation about Y axis; displayed with centerballXAxis and centerballZAxis while center is dragged.
Resource:	centerballZAxis
Part:	ZAxis
Appearance:	Thin yellow line connecting near and far crosshairs.
Description:	Feedback shown alone during rotation about Z axis; displayed with centerballXAxis and centerballYAxis while center is dragged.

CATALOG PARTS

All Parts

Part Name	Part Type	Default Type	NULL Default
callbackList	NodeKitListPart	–	yes
translateToCenter	MatrixTransform	–	yes
surroundScale	SurroundScale	–	yes
antiSquish	AntiSquish	–	no
lightModel	LightModel	–	yes
XAxis	Separator	–	yes
YAxis	Separator	–	yes
ZAxis	Separator	–	yes
rotator	RotateSphericalDragger	–	yes
YRotator	RotateCylindricalDragger	–	yes
ZCenterChanger	Translate2Dragger	–	yes
ZRotator	RotateCylindricalDragger	–	yes
YCenterChanger	Translate2Dragger	–	yes
XCenterChanger	Translate2Dragger	–	yes
XRotator	RotateCylindricalDragger	–	yes

Extra Information for List Parts from Above Table

Part Name	Container Type	Possible Types
callbackList	Separator	Callback, EventCallback

SEE ALSO

SoInteractionKit, SoDragger, SoDirectionalLightDragger, SoDragPointDragger, SoHandleBoxDragger, SoJackDragger, SoPointLightDragger, SoRotateCylindricalDragger, SoRotateDiscDragger, SoRotateSphericalDragger, SoScale1Dragger, SoScale2Dragger, SoScale2UniformDragger, SoScaleUniformDragger, SoSpotLightDragger, SoTabBoxDragger, SoTabPlaneDragger, SoTrackballDragger, SoTransformBoxDragger, SoTranslate1Dragger, SoTranslate2Dragger

Definition at line 337 of file SoCenterballDragger.h.

Constructor & Destructor Documentation

SoCenterballDragger()

SoCenterballDragger::SoCenterballDragger

(

)

Constructor.

Member Function Documentation

getClassNodekitCatalog()

static const SoNodekitCatalog * SoCenterballDragger::getClassNodekitCatalog ( )

static

Returns the SoNodekitCatalog for this class.

getClassTypeId()

static SoType SoCenterballDragger::getClassTypeId ( )

static

Returns the type identifier for this class.

getNodekitCatalog()

virtual const SoNodekitCatalog * SoCenterballDragger::getNodekitCatalog ( ) const

virtual

Returns the SoNodekitCatalog for this instance.

Reimplemented from SoDragger.

getTypeId()

virtual SoType SoCenterballDragger::getTypeId ( ) const

virtual

Returns the type identifier for this specific instance.

Reimplemented from SoDragger.

Member Data Documentation

center

SoSFVec3f SoCenterballDragger::center

Center of rotation and scale of the centerball dragger.

Definition at line 390 of file SoCenterballDragger.h.

rotation

SoSFRotation SoCenterballDragger::rotation

Orientation of the centerball dragger.

Definition at line 385 of file SoCenterballDragger.h.

---

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

• Inventor/draggers/SoCenterballDragger.h