The Switch grouping node traverses zero or one of the nodes specified in the choice field. More...

#include <H3D/Switch.h>

Inheritance diagram for H3D::Switch:

Classes
class	SFBound
	SFBound is specialized to update from the SFBound fields routed to it. More...

Public Member Functions
	Switch (Inst< AddChildren > _addChildren=0, Inst< RemoveChildren > _removeChildren=0, Inst< MFChild > _children=0, Inst< SFNode > _metadata=0, Inst< SFBound > _bound=0, Inst< SFVec3f > _bboxCenter=0, Inst< SFVec3f > _bboxSize=0, Inst< SFInt32 > _whichChoice=0)
	Constructor.

virtual void	render ()
	Only render the child defined by whichChoice,.

virtual void	traverseSG (TraverseInfo &ti)
	Only traverse the childe defined by whichChoice.

virtual bool	lineIntersect (const Vec3f &from, const Vec3f &to, LineIntersectResult &result)
	Detect intersection between a line segment and a Node. More...

virtual void	closestPoint (const Vec3f &p, NodeIntersectResult &result)
	Find closest point on Node to p. More...

virtual bool	movingSphereIntersect (H3DFloat radius, const Vec3f &from, const Vec3f &to, NodeIntersectResult &result)
	Detect collision between a moving sphere and the Node. More...

Public Member Functions inherited from H3D::X3DGroupingNode
	X3DGroupingNode (Inst< AddChildren > _addChildren=0, Inst< RemoveChildren > _removeChildren=0, Inst< MFChild > _children=0, Inst< SFNode > _metadata=0, Inst< SFBound > _bound=0, Inst< SFVec3f > _bboxCenter=0, Inst< SFVec3f > _bboxSize=0)
	Constructor.

virtual	~X3DGroupingNode ()
	Destructor.

virtual void	initialize ()
	Sets up the bound field using the bboxCenter and bboxSize fields. More...

Public Member Functions inherited from H3D::X3DChildNode
	X3DChildNode (Inst< SFNode > _metadata=0)
	Constructor.

Public Member Functions inherited from H3D::X3DNode
	X3DNode (Inst< SFNode > _metadata=0)
	Constructor.

X3DMetadataObject *	getMetadataByName (const string &_name)
	Given a name, the first X3DMetadataObject in the metadata field that matches that name is returned. More...

Public Member Functions inherited from H3D::Node
	Node ()
	Constructor.

virtual Node *	clone (bool deepCopy=true, DeepCopyMap *deepCopyMap=NULL)
	Returns a new instance of this node type with the same state as this one. More...

virtual	~Node ()
	Destructor.

X3DPrototypeInstance *	getProtoInstanceParent ()
	If this node is the root node in the proto body of a X3DPrototypeInstance then this will return that node. More...

void	setProtoInstanceParent (X3DPrototypeInstance *p)
	Set the X3DPrototypeInstance this node is the the root node if applicaple.

virtual string	defaultXMLContainerField ()
	Returns the default xml containerField attribute value. More...

virtual Field *	getField (const string &_name) const
	return a pointer to the field specified by name within this instance

int	addDestructCallback (void(func)(Node , void ), void args)
	Add a callback function to be run on destruction of node. More...

int	removeDestructCallback (void(func)(Node , void ), void args)
	Add a callback function to be run on destruction of node. More...

Public Member Functions inherited from H3D::H3DBoundedObject
	H3DBoundedObject (Inst< SFBound > _bound=0)
	Constructor.

Public Member Functions inherited from H3D::H3DDisplayListObject
	H3DDisplayListObject (Inst< DisplayList > _displayList=0)
	Constructor.

Public Attributes
H3DUniquePtr< SFInt32 >	whichChoice
	The whichChoice field specifies the index of the child to traverse, with the first child having index 0. More...

Public Attributes inherited from H3D::X3DGroupingNode
bool	use_union_bound
	if true a route will be set up between the bound field of the nodes in children and the bound field of the grouping node. More...

H3DUniquePtr< AddChildren >	addChildren
	The addChildren event appends nodes to the children field of a grouping node. More...

H3DUniquePtr< RemoveChildren >	removeChildren
	The removeChildren event removes nodes from the children field of the grouping node . More...

H3DUniquePtr< MFChild >	children
	The nodes that are grouped together by this node. More...

Public Attributes inherited from H3D::X3DNode
H3DUniquePtr< SFNode >	metadata
	Meta data about the node. More...

Public Attributes inherited from H3D::X3DBoundedObject
H3DUniquePtr< SFVec3f >	bboxCenter
	Specifies a the center of an axis-aligned bounding box enclosing the node. More...

H3DUniquePtr< SFVec3f >	bboxSize
	Specifies a the size of an axis-aligned bounding box enclosing the node. More...

Public Attributes inherited from H3D::H3DBoundedObject
H3DUniquePtr< SFBound >	bound
	The field containing the bound object. More...

Public Attributes inherited from H3D::H3DDisplayListObject
H3DUniquePtr< DisplayList >	displayList
	The DisplayList instance handling the OpenGL caching of this object.

Static Public Attributes
static H3DNodeDatabase	database
	The H3DNodeDatabase for this node.

Static Public Attributes inherited from H3D::X3DGroupingNode
static H3DNodeDatabase	database
	The H3DNodeDatabase for this node.

Static Public Attributes inherited from H3D::X3DNode
static H3DNodeDatabase	database
	The H3DNodeDatabase for this node.

Additional Inherited Members
Public Types inherited from H3D::Node
typedef std::map< Node , Node >	DeepCopyMap
	A map type used during a deep copy clone() to map from original nodes to cloned nodes.

Static Public Member Functions inherited from H3D::Node
static unsigned int	nrNodesAlive ()
	Returns the nr of nodes currently alive, i.e. nodes created but not destructed.

static int	nrNodesCreated ()
	Returns the number of nodes created in total since the start of the program.

Protected Member Functions inherited from H3D::Node
void	cloneFieldValue (Field &_from, Field &_to, bool deepCopy, DeepCopyMap &deepCopyMap)
	A helper function for the clone() method. More...

Static Protected Member Functions inherited from H3D::Node
static Node *	getClonedInstance (Node *original, bool deepCopy, DeepCopyMap &deepCopyMap)
	A helper function for nodes that implement clone() More...

Protected Attributes inherited from H3D::X3DGroupingNode
bool	children_multi_pass_transparency
	Will be set in traverseSG to indicate if any of the children enables multi-pass transparency. More...

vector< H3DRenderStateObject * >	render_states
	A vector of all the H3DRenderStatesObject within this X3DGroupingNode.

vector< ClipPlane * >	clip_planes
	A vector of only ClipPlane children of this X3DGroupingNode.

Detailed Description

The Switch grouping node traverses zero or one of the nodes specified in the choice field.

The whichChoice field specifies the index of the child to traverse, with the first child having index 0. If whichChoice is less than zero or greater than the number of nodes in the choice field, nothing is chosen.

All nodes under a Switch continue to receive and send events regardless of the value of whichChoice. For example, if an active TimeSensor is contained within an inactive choice of an Switch, the TimeSensor sends events regardless of the Switch's state.

The bboxCenter and bboxSize fields specify a bounding box that encloses the Switch node's children. This is a hint that may be used for optimization purposes. The results are undefined if the specified bounding box is smaller than the actual bounding box of the child with the largest bounding box at any time. A default bboxSize value, (-1, -1, -1), implies that the bounding box is not specified and, if needed, is calculated by the browser.

Examples:

Switch.x3d ( Source )

Internal routes:

Member Function Documentation

◆ closestPoint()

void Switch::closestPoint	(	const Vec3f &	p,
		NodeIntersectResult &	result
	)

virtual

Find closest point on Node to p.

Calls closestPoint for the same child as the one that should be rendered.

Parameters

p	The point to find the closest point to.
result	A struct containing various results of closest points such as which geometries the closest points where detected on.

Reimplemented from H3D::X3DGroupingNode.

References H3D::X3DGroupingNode::children, H3D::Node::closestPoint(), and whichChoice.

◆ lineIntersect()

bool Switch::lineIntersect	(	const Vec3f &	from,
		const Vec3f &	to,
		LineIntersectResult &	result
	)

virtual

Detect intersection between a line segment and a Node.

Calls lineIntersect for the same child as the one that should be rendered.

Parameters

from	The start of the line segment.
to	The end of the line segment.
result	Contains info about the closest intersection for every object that intersects the line.

Returns: true if intersected, false otherwise.

Reimplemented from H3D::X3DGroupingNode.

References H3D::X3DGroupingNode::children, H3D::Node::lineIntersect(), and whichChoice.

◆ movingSphereIntersect()

bool Switch::movingSphereIntersect	(	H3DFloat	radius,
		const Vec3f &	from,
		const Vec3f &	to,
		NodeIntersectResult &	result
	)

virtual

Detect collision between a moving sphere and the Node.

Calls movingSphereIntersect for the same child as the one that should be rendered.

Parameters

radius	The radius of the sphere
from	The start position of the sphere
to	The end position of the sphere.
result	A struct containing various results of intersections such as which geometries intersected the moving sphere.

Returns: true if intersected, false otherwise.

Reimplemented from H3D::X3DGroupingNode.

References H3D::X3DGroupingNode::children, H3D::Node::movingSphereIntersect(), and whichChoice.

Member Data Documentation

◆ whichChoice

H3DUniquePtr< SFInt32 > H3D::Switch::whichChoice

The whichChoice field specifies the index of the child to traverse, with the first child having index 0.

If whichChoice is less than zero or greater than the number of nodes in the choice field, nothing is chosen.

Access type: inputOutput
Default value: -1

Referenced by closestPoint(), lineIntersect(), movingSphereIntersect(), render(), Switch(), and traverseSG().

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

Classes

Public Member Functions

Public Attributes

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ closestPoint()

◆ lineIntersect()

◆ movingSphereIntersect()

Member Data Documentation

◆ whichChoice