SoPickStyle Class Reference

The SoPickStyle class is a node for setting up how to do picking. More...

#include <Inventor/nodes/SoPickStyle.h>

Inheritance diagram for SoPickStyle:

Public Types
enum	Style {   SHAPE = SoPickStyleElement::SHAPE, BOUNDING_BOX = SoPickStyleElement::BOUNDING_BOX, UNPICKABLE = SoPickStyleElement::UNPICKABLE, SHAPE_ON_TOP = SoPickStyleElement::SHAPE_ON_TOP,   BOUNDING_BOX_ON_TOP = SoPickStyleElement::BOUNDING_BOX_ON_TOP, SHAPE_FRONTFACES = SoPickStyleElement::SHAPE_FRONTFACES }
Public Types inherited from SoNode
enum	NodeType {   INVENTOR = 0x0000, VRML1 = 0x0001, VRML2 = 0x0002, INVENTOR_1 = 0x0004,   INVENTOR_2_0 = 0x0008, INVENTOR_2_1 = 0x0010, INVENTOR_2_5 = 0x0020, INVENTOR_2_6 = 0x0040,   COIN_1_0 = 0x0080, COIN_2_0 = 0x0100, EXTENSION = 0x0200, COIN_2_2 = 0x0400,   COIN_2_3 = 0x0800, COIN_2_4 = 0x1000, INVENTOR_5_0 = 0x2000, COIN_2_5 = 0x4000,   COIN_3_0 = 0x8000, INVENTOR_6_0 = 0x10000, COIN_4_0 = 0x20000 }

Public Member Functions
virtual SoType	getTypeId (void) const
	Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting. More...
	SoPickStyle (void)
virtual void	doAction (SoAction *action)
virtual void	callback (SoCallbackAction *action)
virtual void	pick (SoPickAction *action)
Public Member Functions inherited from SoNode
void	setOverride (const SbBool state)
SbBool	isOverride (void) const
void	setNodeType (const NodeType type)
NodeType	getNodeType (void) const
virtual SoNode *	copy (SbBool copyconnections=FALSE) const
virtual SbBool	affectsState (void) const
virtual void	GLRender (SoGLRenderAction *action)
virtual void	GLRenderBelowPath (SoGLRenderAction *action)
virtual void	GLRenderInPath (SoGLRenderAction *action)
virtual void	GLRenderOffPath (SoGLRenderAction *action)
virtual void	getBoundingBox (SoGetBoundingBoxAction *action)
virtual void	getMatrix (SoGetMatrixAction *action)
virtual void	handleEvent (SoHandleEventAction *action)
virtual void	rayPick (SoRayPickAction *action)
virtual void	search (SoSearchAction *action)
virtual void	write (SoWriteAction *action)
virtual void	audioRender (SoAudioRenderAction *action)
virtual void	getPrimitiveCount (SoGetPrimitiveCountAction *action)
virtual void	grabEventsSetup (void)
virtual void	grabEventsCleanup (void)
virtual void	startNotify (void)
virtual void	notify (SoNotList *l)
SbUniqueId	getNodeId (void) const
virtual SoChildList *	getChildren (void) const
virtual void	writeInstance (SoOutput *out)
virtual SoNode *	addToCopyDict (void) const
virtual void	copyContents (const SoFieldContainer *from, SbBool copyconnections)
virtual SoFieldContainer *	copyThroughConnection (void) const
Public Member Functions inherited from SoFieldContainer
void	setToDefaults (void)
SbBool	hasDefaultValues (void) const
SbBool	fieldsAreEqual (const SoFieldContainer *container) const
void	copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
SbBool	set (const char *const fielddata)
void	get (SbString &fielddata)
virtual int	getFields (SoFieldList &l) const
virtual int	getAllFields (SoFieldList &l) const
virtual SoField *	getField (const SbName &name) const
virtual SoField *	getEventIn (const SbName &name) const
virtual SoField *	getEventOut (const SbName &name) const
SbBool	getFieldName (const SoField *const field, SbName &name) const
SbBool	enableNotify (const SbBool flag)
SbBool	isNotifyEnabled (void) const
SbBool	set (const char *fielddata, SoInput *input)
void	get (SbString &fielddata, SoOutput *out)
virtual SbBool	validateNewFieldValue (SoField *field, void *newval)
virtual void	addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
SbBool	getIsBuiltIn (void) const
virtual void	getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
void	setUserData (void *userdata) const
void *	getUserData (void) const
Public Member Functions inherited from SoBase
void	ref (void) const
void	unref (void) const
void	unrefNoDelete (void) const
int32_t	getRefCount (void) const
void	touch (void)
SbBool	isOfType (SoType type) const
	Returns TRUE if the type of this object is either of the same type or inherited from type. More...
virtual SbName	getName (void) const
virtual void	setName (const SbName &newname)
void	addAuditor (void *const auditor, const SoNotRec::Type type)
void	removeAuditor (void *const auditor, const SoNotRec::Type type)
const SoAuditorList &	getAuditors (void) const
SbBool	shouldWrite (void)
void	assertAlive (void) const

Static Public Member Functions
static SoType	getClassTypeId (void)
static void	initClass (void)
Static Public Member Functions inherited from SoNode
static uint32_t	getCompatibilityTypes (const SoType &nodetype)
static SoType	getClassTypeId (void)
static SoNode *	getByName (const SbName &name)
static int	getByName (const SbName &name, SoNodeList &l)
static void	initClass (void)
static void	initClasses (void)
static SbUniqueId	getNextNodeId (void)
static int	getActionMethodIndex (const SoType type)
static void	getBoundingBoxS (SoAction *action, SoNode *node)
static void	GLRenderS (SoAction *action, SoNode *node)
static void	callbackS (SoAction *action, SoNode *node)
static void	getMatrixS (SoAction *action, SoNode *node)
static void	handleEventS (SoAction *action, SoNode *node)
static void	pickS (SoAction *action, SoNode *node)
static void	rayPickS (SoAction *action, SoNode *node)
static void	searchS (SoAction *action, SoNode *node)
static void	writeS (SoAction *action, SoNode *node)
static void	audioRenderS (SoAction *action, SoNode *node)
static void	getPrimitiveCountS (SoAction *action, SoNode *node)
Static Public Member Functions inherited from SoFieldContainer
static void	initClass (void)
static SoType	getClassTypeId (void)
static void	cleanupClass (void)
static void	initCopyDict (void)
static void	addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
static SoFieldContainer *	checkCopy (const SoFieldContainer *orig)
static SoFieldContainer *	findCopy (const SoFieldContainer *orig, const SbBool copyconnections)
static void	copyDone (void)
Static Public Member Functions inherited from SoBase
static void	initClass (void)
	Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static SoType	getClassTypeId (void)
	This static method returns the SoType object associated with objects of this class.
static void	addName (SoBase *const base, const char *const name)
static void	removeName (SoBase *const base, const char *const name)
static void	incrementCurrentWriteCounter (void)
static void	decrementCurrentWriteCounter (void)
static SoBase *	getNamedBase (const SbName &name, SoType type)
static int	getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
static SbBool	read (SoInput *input, SoBase *&base, SoType expectedtype)
static void	setInstancePrefix (const SbString &c)
static void	setTraceRefs (SbBool trace)
static SbBool	getTraceRefs (void)
static SbBool	connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
static SbBool	readRoute (SoInput *input)

Public Attributes
SoSFEnum	style

Protected Member Functions
virtual const SoFieldData *	getFieldData (void) const
virtual	~SoPickStyle ()
Protected Member Functions inherited from SoNode
	SoNode (void)
virtual	~SoNode ()
virtual SbBool	readInstance (SoInput *in, unsigned short flags)
Protected Member Functions inherited from SoFieldContainer
	SoFieldContainer (void)
virtual	~SoFieldContainer ()
Protected Member Functions inherited from SoBase
	SoBase (void)
virtual	~SoBase ()
virtual void	destroy (void)
SbBool	hasMultipleWriteRefs (void) const
SbBool	writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
void	writeFooter (SoOutput *out) const
virtual const char *	getFileFormatName (void) const
virtual SoNotRec	createNotRec (void)

Static Protected Member Functions
static const SoFieldData **	getFieldDataPtr (void)
Static Protected Member Functions inherited from SoNode
static const SoFieldData **	getFieldDataPtr (void)
static void	setNextActionMethodIndex (int index)
static int	getNextActionMethodIndex (void)
static void	incNextActionMethodIndex (void)
static void	setCompatibilityTypes (const SoType &nodetype, const uint32_t bitmask)
Static Protected Member Functions inherited from SoBase
static uint32_t	getCurrentWriteCounter (void)
static void	staticDataLock (void)
static void	staticDataUnlock (void)

Additional Inherited Members
Protected Types inherited from SoBase
enum	BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }
Protected Attributes inherited from SoNode
SbUniqueId	uniqueId
Protected Attributes inherited from SoFieldContainer
SbBool	isBuiltIn
Static Protected Attributes inherited from SoNode
static SbUniqueId	nextUniqueId = 1
static int	nextActionMethodIndex = 0

Detailed Description

The SoPickStyle class is a node for setting up how to do picking.

By default, all geometry in a scene is available for picking. Upon writing applications with interaction possibilities, this is often not what you want. To exclude parts of the scene graph from pick actions, use the SoPickStyle::UNPICKABLE.

You can also optimize pick operations by using the SoPickStyle::BOUNDING_BOX pickstyle.

FILE FORMAT/DEFAULTS:

PickStyle {
    style SHAPE
}

See also

SoRayPickAction

Member Enumeration Documentation

Style

enum SoPickStyle::Style

Enumeration of the available picking strategies.

Enumerator
SHAPE	Do "exact" picks, finding the correct intersection point(s), etc.
BOUNDING_BOX	Only compare pick intersection with the bounding boxes of shapes. This is usually much faster than SoPickStyle::SHAPE.
UNPICKABLE	The geometry following this node in the scene will not be available for picking.
SHAPE_ON_TOP	Do exact picks, like SHAPE, but sort the shape to the front of the list of picked points so it appears to be the frontmost item. This does not affect the SoPickedPoint pick coordinate though, just the sorting by depth done on the picked point list. Since Coin 3.0
BOUNDING_BOX_ON_TOP	Do picks against the enclosing bounding box of the object, like BOUNDING_BOX, but sort the shape to the front of the list of picked points so it appears to be the frontmost item. This does not affect the SoPickedPoint pick coordinate though, just the sorting by depth done on the picked point list. Since Coin 3.0
SHAPE_FRONTFACES	Do exact picks, like SHAPE, but cull all the backface intersections from the list. Note that this logic is relative to the ray, not the view, in case the ray and the view direction are not aligned. The behaviour of this setting will also depend on the SoShapeStyle vertexOrdering and shapeType setting, which are used to flip frontfaces to become backfaces and vice versa and to turn backface culling on and off. Since Coin 3.0

Constructor & Destructor Documentation

SoPickStyle()

SoPickStyle::SoPickStyle

(

void

)

Constructor.

~SoPickStyle()

SoPickStyle::~SoPickStyle ( )

protectedvirtual

Destructor.

Member Function Documentation

getTypeId()

SoType SoPickStyle::getTypeId ( void  ) const

virtual

Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting.

Usage example:

void foo(SoNode * node)
{
  if (node->getTypeId() == SoFile::getClassTypeId()) {
    SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
  }
}

For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.

For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.

Implements SoBase.

getFieldData()

const SoFieldData * SoPickStyle::getFieldData ( void  ) const

protectedvirtual

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoFieldContainer.

doAction()

void SoPickStyle::doAction ( SoAction *  action )

virtual

This function performs the typical operation of a node for any action.

Reimplemented from SoNode.

callback()

void SoPickStyle::callback ( SoCallbackAction *  action )

virtual

Action method for SoCallbackAction.

Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.

Reimplemented from SoNode.

pick()

void SoPickStyle::pick ( SoPickAction *  action )

virtual

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

Member Data Documentation

style

SoSFEnum SoPickStyle::style

Which strategy to use for the picking actions for subsequent shapes in the scene graph. Default value is SoPickStyle::SHAPE.

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

• SoPickStyle.h
• SoPickStyle.cpp