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SoVRMLGroup Class Reference

The SoVRMLGroup class is used for grouping VRML nodes. More...

#include <Inventor/VRMLnodes/SoVRMLGroup.h>

Inheritance diagram for SoVRMLGroup:
SoVRMLParent SoGroup SoNode SoFieldContainer SoBase SoVRMLCollision SoVRMLTransform

Public Types

enum  CacheEnabled { OFF , ON , AUTO }
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
}

Public Member Functions

virtual SoType getTypeId (void) const
 SoVRMLGroup (void)
 SoVRMLGroup (int numChildren)
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void rayPick (SoRayPickAction *action)
virtual void search (SoSearchAction *action)
virtual void write (SoWriteAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
virtual void audioRender (SoAudioRenderAction *action)
virtual void GLRenderBelowPath (SoGLRenderAction *action)
virtual void GLRenderInPath (SoGLRenderAction *action)
virtual void GLRenderOffPath (SoGLRenderAction *action)
virtual void notify (SoNotList *list)
Public Member Functions inherited from SoVRMLParent
virtual SbBool affectsState (void) const
virtual void addChild (SoNode *child)
virtual void insertChild (SoNode *child, int idx)
virtual SoNodegetChild (int idx) const
virtual int findChild (const SoNode *child) const
virtual int getNumChildren (void) const
virtual void removeChild (int idx)
virtual void removeChild (SoNode *child)
virtual void removeAllChildren (void)
virtual void replaceChild (int idx, SoNode *child)
virtual void replaceChild (SoNode *old, SoNode *child)
virtual SoChildListgetChildren (void) const
Public Member Functions inherited from SoGroup
 SoGroup (void)
 SoGroup (int nchildren)
virtual void handleEvent (SoHandleEventAction *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 SoNodecopy (SbBool copyconnections=0) const
virtual void grabEventsSetup (void)
virtual void grabEventsCleanup (void)
virtual void startNotify (void)
uint32_t getNodeId (void) const
virtual void writeInstance (SoOutput *out)
virtual SoNodeaddToCopyDict (void) const
virtual SoFieldContainercopyThroughConnection (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=0)
SbBool set (const char *const fielddata)
void get (SbString &fielddata)
virtual int getFields (SoFieldList &l) const
virtual int getAllFields (SoFieldList &l) const
virtual SoFieldgetField (const SbName &name) const
virtual SoFieldgetEventIn (const SbName &name) const
virtual SoFieldgetEventOut (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 *in)
void get (SbString &fielddata, SoOutput *out)
virtual SbBool validateNewFieldValue (SoField *field, void *newval)
virtual void addWriteReference (SoOutput *out, SbBool isfromfield=0)
SbBool getIsBuiltIn (void) 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
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 SoAuditorListgetAuditors (void) const
SbBool shouldWrite (void)
void assertAlive (void) const

Static Public Member Functions

static SoType getClassTypeId (void)
static void initClass (void)
static void setNumRenderCaches (int num)
static int getNumRenderCaches (void)
Static Public Member Functions inherited from SoVRMLParent
static SoType getClassTypeId (void)
static void initClass (void)
static void updateChildList (const SoNode *const *nodes, const int numnodes, SoChildList &cl)
static void updateChildList (SoNode *nodewithsfnode, SoChildList &cl)
Static Public Member Functions inherited from SoGroup
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 SoNodegetByName (const SbName &name)
static int getByName (const SbName &name, SoNodeList &l)
static void initClass (void)
static void initClasses (void)
static uint32_t 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 initCopyDict (void)
static void addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
static SoFieldContainercheckCopy (const SoFieldContainer *orig)
static SoFieldContainerfindCopy (const SoFieldContainer *orig, const SbBool copyconnections)
static void copyDone (void)
Static Public Member Functions inherited from SoBase
static void initClass (void)
static SoType getClassTypeId (void)
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 SoBasegetNamedBase (const SbName &name, SoType type)
static int getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
static SbBool read (SoInput *in, SoBase *&base, SoType expectedtype)
static void setInstancePrefix (const SbString &c)
static void setTraceRefs (SbBool trace)
static SbBool getTraceRefs (void)
static SbBool connectRoute (SoInput *in, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
static SbBool readRoute (SoInput *in)

Public Attributes

SoSFEnum renderCaching
SoSFEnum boundingBoxCaching
SoSFEnum renderCulling
SoSFEnum pickCulling
SoSFVec3f bboxCenter
SoSFVec3f bboxSize
Public Attributes inherited from SoVRMLParent
SoMFNode children

Protected Member Functions

virtual const SoFieldDatagetFieldData (void) const
virtual ~SoVRMLGroup ()
virtual SbBool cullTest (SoState *state)
Protected Member Functions inherited from SoVRMLParent
 SoVRMLParent (void)
 SoVRMLParent (int approxchildren)
virtual ~SoVRMLParent ()
virtual SbBool readInstance (SoInput *in, unsigned short flags)
virtual void copyContents (const SoFieldContainer *from, SbBool copyConn)
Protected Member Functions inherited from SoGroup
virtual ~SoGroup ()
virtual SbBool readChildren (SoInput *in)
Protected Member Functions inherited from SoNode
 SoNode (void)
virtual ~SoNode ()
Protected Member Functions inherited from SoFieldContainer
 SoFieldContainer (void)
 ~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

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)
Static Protected Member Functions inherited from SoVRMLParent
static const SoFieldData ** getFieldDataPtr (void)
Static Protected Member Functions inherited from SoGroup
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)

Static Protected Attributes

static int numRenderCaches = 2
Static Protected Attributes inherited from SoNode
static uint32_t nextUniqueId = 0
static int nextActionMethodIndex = 0

Additional Inherited Members

Protected Types inherited from SoBase
enum  BaseFlags { IS_ENGINE = 0x01 , IS_GROUP = 0x02 }
Protected Attributes inherited from SoVRMLParent
SoMFNode addChildren
SoMFNode removeChildren
Protected Attributes inherited from SoGroup
SoChildListchildren
Protected Attributes inherited from SoNode
uint32_t uniqueId
Protected Attributes inherited from SoFieldContainer
SbBool isBuiltIn

Detailed Description

The SoVRMLGroup class is used for grouping VRML nodes.

The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:

Group {
  eventIn      MFNode  addChildren
  eventIn      MFNode  removeChildren
  exposedField MFNode  children      []
  field        SFVec3f bboxCenter    0 0 0     # (-inf,inf)
  field        SFVec3f bboxSize      -1 -1 -1  # (0,inf) or -1,-1,-1
}

A Group node contains children nodes without introducing a new transformation. It is equivalent to a Transform node containing an identity transform. More details on the children, addChildren, and removeChildren fields and eventIns can be found in 4.6.5, Grouping and children nodes (http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.5).

The bboxCenter and bboxSize fields specify a bounding box that encloses the Group 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 children 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. A description of the bboxCenter and bboxSize fields is contained in 4.6.4, Bounding boxes (http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.4).

Constructor & Destructor Documentation

◆ SoVRMLGroup() [1/2]

SoVRMLGroup::SoVRMLGroup ( void )

Constructor.

Referenced by getFieldData().

◆ SoVRMLGroup() [2/2]

SoVRMLGroup::SoVRMLGroup ( int numchildren)

Constructor. numchildren is the expected number of children.

References SoVRMLParent::SoVRMLParent().

◆ ~SoVRMLGroup()

SoVRMLGroup::~SoVRMLGroup ( )
protectedvirtual

Destructor.

Member Function Documentation

◆ getTypeId()

SoType SoVRMLGroup::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
}
else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) {
SoGroup * group = (SoGroup *)node; // safe downward cast, knows the type
}
}
virtual SoType getTypeId(void) const =0
The SoFile class is node container for another model file.
Definition SoFile.h:34
The SoGroup class is a node which managed other node instances.
Definition SoGroup.h:31
SoNode(void)
Definition SoNode.cpp:332

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.

Reimplemented from SoVRMLParent.

Reimplemented in SoVRMLCollision, and SoVRMLTransform.

Referenced by GLRenderBelowPath().

◆ getFieldData()

const SoFieldData * SoVRMLGroup::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 SoVRMLParent.

Reimplemented in SoVRMLCollision, and SoVRMLTransform.

References SoNode::rayPickS(), and SoVRMLGroup().

◆ setNumRenderCaches()

void SoVRMLGroup::setNumRenderCaches ( int num)
static

Set the maximum number of render caches per group node.

◆ getNumRenderCaches()

int SoVRMLGroup::getNumRenderCaches ( void )
static

Returns the maximum number of render caches per group node.

Referenced by GLRenderBelowPath().

◆ doAction()

void SoVRMLGroup::doAction ( SoAction * action)
virtual

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

Reimplemented from SoVRMLParent.

Reimplemented in SoVRMLTransform.

References SoVRMLParent::doAction(), SoAction::getState(), SoState::pop(), and SoState::push().

Referenced by audioRender(), rayPick(), and search().

◆ callback()

void SoVRMLGroup::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 SoGroup.

Reimplemented in SoVRMLTransform.

References SoGroup::callback(), cullTest(), SoAction::getState(), SoState::pop(), and SoState::push().

Referenced by SoVRMLTransform::callback().

◆ GLRender()

void SoVRMLGroup::GLRender ( SoGLRenderAction * action)
virtual

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoGroup.

Reimplemented in SoVRMLCollision.

References SoAction::getCurPathCode(), GLRenderBelowPath(), and GLRenderInPath().

◆ getBoundingBox()

void SoVRMLGroup::getBoundingBox ( SoGetBoundingBoxAction * action)
virtual

Action method for the SoGetBoundingBoxAction.

Calculates bounding box and center coordinates for node and modifies the values of the action to encompass the bounding box for this node and to shift the center point for the scene more towards the one for this node.

Nodes influencing how geometry nodes calculates their bounding box also overrides this method to change the relevant state variables.

Reimplemented from SoGroup.

Reimplemented in SoVRMLTransform.

References SoGetBoundingBoxAction::extendBy(), SoGroup::getBoundingBox(), SoGetBoundingBoxAction::getCenter(), SoAction::getCurPathCode(), SoAction::getState(), SbVec3f::getValue(), SoGetBoundingBoxAction::getXfBoundingBox(), SbMatrix::identity(), SoGetBoundingBoxAction::isCenterSet(), SbBox3f::isEmpty(), SoGetBoundingBoxAction::isInCameraSpace(), SoGetBoundingBoxAction::isResetPath(), SbBox3f::makeEmpty(), SoState::pop(), SoState::push(), SoGetBoundingBoxAction::resetCenter(), SoGetBoundingBoxAction::setCenter(), and SbXfBox3f::setTransform().

Referenced by SoVRMLTransform::getBoundingBox().

◆ getMatrix()

void SoVRMLGroup::getMatrix ( SoGetMatrixAction * action)
virtual

Action method for SoGetMatrixAction.

Updates action by accumulating with the transformation matrix of this node (if any).

Reimplemented from SoGroup.

Reimplemented in SoVRMLTransform.

References SoVRMLParent::getChildren(), SoAction::getPathCode(), and SoChildList::traverseInPath().

◆ rayPick()

void SoVRMLGroup::rayPick ( SoRayPickAction * action)
virtual

Action method for SoRayPickAction.

Checks the ray specification of the action and tests for intersection with the data of the node.

Nodes influencing relevant state variables for how picking is done also overrides this method.

Reimplemented from SoNode.

Reimplemented in SoVRMLTransform.

References doAction(), SoAction::getState(), and SoRayPickAction::hasWorldSpaceRay().

Referenced by SoVRMLTransform::rayPick().

◆ search()

void SoVRMLGroup::search ( SoSearchAction * action)
virtual

Action method for SoSearchAction.

Compares the search criteria from the action to see if this node is a match. Searching is done by matching up all criteria set up in the SoSearchAction – if any of the requested criteria is a miss, the search is not deemed successful for the node.

See also
SoSearchAction

Reimplemented from SoVRMLParent.

References doAction(), SoSearchAction::isFound(), and SoNode::search().

◆ write()

void SoVRMLGroup::write ( SoWriteAction * action)
virtual

Action method for SoWriteAction.

Writes out a node object, and any connected nodes, engines etc, if necessary.

Reimplemented from SoVRMLParent.

References SoVRMLParent::write().

◆ getPrimitiveCount()

void SoVRMLGroup::getPrimitiveCount ( SoGetPrimitiveCountAction * action)
virtual

Action method for the SoGetPrimitiveCountAction.

Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action.

Nodes influencing how geometry nodes calculates their primitive count also overrides this method to change the relevant state variables.

Reimplemented from SoVRMLParent.

Reimplemented in SoVRMLTransform.

References SoVRMLParent::getPrimitiveCount(), SoAction::getState(), SoState::pop(), and SoState::push().

◆ audioRender()

void SoVRMLGroup::audioRender ( SoAudioRenderAction * action)
virtual

Action method for SoAudioRenderAction.

Does common processing for SoAudioRenderAction action instances.

Reimplemented from SoGroup.

Reimplemented in SoVRMLTransform.

References doAction(), SoVRMLParent::doAction(), SoAction::getPathCode(), SoAction::getState(), SoState::pop(), and SoState::push().

◆ GLRenderBelowPath()

◆ GLRenderInPath()

◆ GLRenderOffPath()

void SoVRMLGroup::GLRenderOffPath ( SoGLRenderAction * action)
virtual

Implements the SoAction::OFF_PATH traversal method for the rendering action.

Reimplemented from SoNode.

◆ notify()

void SoVRMLGroup::notify ( SoNotList * l)
virtual

Notifies all auditors for this instance when changes are made.

Reimplemented from SoVRMLParent.

Reimplemented in SoVRMLCollision, and SoVRMLTransform.

References SoVRMLParent::notify().

Referenced by SoVRMLCollision::notify(), and SoVRMLTransform::notify().

◆ cullTest()

SbBool SoVRMLGroup::cullTest ( SoState * state)
protectedvirtual

Returns TRUE if children can be culled.

References SbBox3f::isEmpty().

Referenced by callback(), and GLRenderBelowPath().


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

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