Public Member Functions¶

virtual SoType getTypeId (void) const
SoVRMLLOD (void)
SoVRMLLOD (int levels)
virtual SbBool affectsState (void) const
void addLevel (SoNode *level)
void insertLevel (SoNode *level, int idx)
SoNode * getLevel (int idx) const
int findLevel (const SoNode *level) const
int getNumLevels (void) const
void removeLevel (int idx)
void removeLevel (SoNode *level)
void removeAllLevels (void)
void replaceLevel (int idx, SoNode *level)
void replaceLevel (SoNode *old, SoNode *level)
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void rayPick (SoRayPickAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *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)
void addChild (SoNode *child)
void insertChild (SoNode *child, int idx)
SoNode * getChild (int idx) const
int findChild (const SoNode *child) const
int getNumChildren (void) const
void removeChild (int idx)
void removeChild (SoNode *child)
void removeAllChildren (void)
void replaceChild (int idx, SoNode *child)
void replaceChild (SoNode *old, SoNode *child)
virtual SoChildList * getChildren (void) const

Public Member Functions inherited from SoGroup
SoGroup (void)
SoGroup (int nchildren)
virtual void getMatrix (SoGetMatrixAction *action)
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 SoNode * copy (SbBool copyconnections=FALSE) const
virtual void grabEventsSetup (void)
virtual void grabEventsCleanup (void)
virtual void startNotify (void)
uint32_t getNodeId (void) const
virtual void writeInstance (SoOutput *out)
virtual SoNode * addToCopyDict (void) const
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
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 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 SoNode * getByName (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 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)
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 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¶

SoMFFloat range
SoSFVec3f center
SoMFNode level

Protected Member Functions¶

virtual const SoFieldData * getFieldData (void) const
virtual ~SoVRMLLOD ()
virtual void notify (SoNotList *list)
virtual SbBool readInstance (SoInput *in, unsigned short flags)
virtual void copyContents (const SoFieldContainer *from, SbBool copyConn)
virtual int whichToTraverse (SoAction *action)

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)
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

Static Protected Member Functions¶

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)

Additional Inherited Members¶

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 }

Protected Types inherited from SoBase
enum BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }

Protected Attributes inherited from SoGroup
SoChildList * children

Protected Attributes inherited from SoNode
uint32_t uniqueId

Protected Attributes inherited from SoFieldContainer
SbBool isBuiltIn

Static Protected Attributes inherited from SoNode
static uint32_t nextUniqueId = 1
static int nextActionMethodIndex = 0

SoVRMLLOD::SoVRMLLOD (void)¶

Constructor.

SoVRMLLOD::SoVRMLLOD (int levels)¶

Constructor. levels is the expected number of levels.

SoVRMLLOD::~SoVRMLLOD () [protected], [virtual]¶

Destructor.

SoType SoVRMLLOD::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.

Reimplemented from SoGroup.

const SoFieldData * SoVRMLLOD::getFieldData (void) const [protected], [virtual]¶

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

Reimplemented from SoGroup.

SbBool SoVRMLLOD::affectsState (void) const [virtual]¶

Returns TRUE if the node could have any effect on the state during traversal.

If it returns FALSE, no data in the traversal-state will change from the pre-traversal state to the post-traversal state. The SoSeparator node will for instance return FALSE, as it pushes and pops the state before and after traversal of its children. All SoShape nodes will also return FALSE, as just pushing out geometry data to the rendering engine won't affect the actual rendering state.

The default method returns TRUE, on a 'better safe than sorry' philosophy.

Reimplemented from SoNode.

void SoVRMLLOD::addLevel (SoNode * levelptr)¶

Adds a new level.

void SoVRMLLOD::insertLevel (SoNode * levelptr, int idx)¶

Inserts a new level.

SoNode * SoVRMLLOD::getLevel (int idx) const¶

Returns a level.

int SoVRMLLOD::findLevel (const SoNode * node) const¶

Find node, and return the level index or -1 if not found.

int SoVRMLLOD::getNumLevels (void) const¶

Return the number of levels.

void SoVRMLLOD::removeLevel (int idx)¶

Removes the level at index idx.

void SoVRMLLOD::removeLevel (SoNode * levelptr)¶

Find level, and remove it if found.

void SoVRMLLOD::removeAllLevels (void)¶

Remove all levels.

void SoVRMLLOD::replaceLevel (int idx, SoNode * node)¶

Replace the level at idx with node.

void SoVRMLLOD::replaceLevel (SoNode * oldnode, SoNode * newnode)¶

Find oldnode, and replace it with newnode.

void SoVRMLLOD::doAction (SoAction * action) [virtual]¶

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

Reimplemented from SoGroup.

void SoVRMLLOD::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.

void SoVRMLLOD::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.

void SoVRMLLOD::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.

void SoVRMLLOD::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.

void SoVRMLLOD::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

Reimplemented from SoGroup.

void SoVRMLLOD::write (SoWriteAction * action) [virtual]¶

Action method for SoWriteAction.

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

Reimplemented from SoGroup.

void SoVRMLLOD::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 SoGroup.

void SoVRMLLOD::audioRender (SoAudioRenderAction * action) [virtual]¶

Action method for SoAudioRenderAction.

Does common processing for SoAudioRenderAction action instances.

Reimplemented from SoGroup.

void SoVRMLLOD::GLRenderBelowPath (SoGLRenderAction * action) [virtual]¶

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

Reimplemented from SoNode.

void SoVRMLLOD::GLRenderInPath (SoGLRenderAction * action) [virtual]¶

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

Reimplemented from SoNode.

void SoVRMLLOD::GLRenderOffPath (SoGLRenderAction * action) [virtual]¶

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

Reimplemented from SoNode.

void SoVRMLLOD::addChild (SoNode * node) [virtual]¶

Append a child node to the list of children nodes this group node is managing.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

void SoVRMLLOD::insertChild (SoNode * child, int newchildindex) [virtual]¶

Insert a child node at position newchildindex.

newchildindex must be <= this->getNumChildren()

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

SoNode * SoVRMLLOD::getChild (int index) const [virtual]¶

Returns pointer to child node at index.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

int SoVRMLLOD::findChild (const SoNode * node) const [virtual]¶

Returns index in our list of children for child node, or -1 if node is not a child of this group node.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

int SoVRMLLOD::getNumChildren (void) const [virtual]¶

Returns number of child nodes managed by this group.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

void SoVRMLLOD::removeChild (int childindex) [virtual]¶

Remove node at childindex in our list of children.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

void SoVRMLLOD::removeChild (SoNode * child) [virtual]¶

Remove child from the set of children managed by this group node. Will decrease the reference count of child by 1.

This is a convenience method. It will simply call findChild() with child as argument, and then call removeChild(int) if the child is found.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

void SoVRMLLOD::removeAllChildren (void) [virtual]¶

Do not manage the children anymore. Will dereference all children by 1 as they are removed.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

void SoVRMLLOD::replaceChild (int index, SoNode * newchild) [virtual]¶

Replace child at index with newChild.

Dereferences the child previously at index, and increases the reference count of newChild by 1.

index must be < this->getNumChildren()

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

void SoVRMLLOD::replaceChild (SoNode * oldchild, SoNode * newchild) [virtual]¶

Replace oldchild with newchild.

Dereferences oldchild by 1, and increases the reference count of newchild by 1.

This is a convenience method. It will simply call findChild() with oldchild as argument, and call replaceChild(int, SoNode*) if the child is found.

Please note that this method is not virtual in the original SGI Inventor API.

Reimplemented from SoGroup.

SoChildList * SoVRMLLOD::getChildren (void) const [virtual]¶

Returns list of children.

Reimplemented from SoGroup.

void SoVRMLLOD::notify (SoNotList * l) [protected], [virtual]¶

Notifies all auditors for this instance when changes are made.

Reimplemented from SoNode.

SbBool SoVRMLLOD::readInstance (SoInput * in, unsigned short flags) [protected], [virtual]¶

This method is mainly intended for internal use during file import operations.

It reads a definition of an instance from the input stream in. The input stream state points to the start of a serialized / persistant representation of an instance of this class type.

TRUE or FALSE is returned, depending on if the instantiation and configuration of the new object of this class type went ok or not. The import process should be robust and handle corrupted input streams by returning FALSE.

flags is used internally during binary import when reading user extension nodes, group nodes or engines.

Reimplemented from SoGroup.

void SoVRMLLOD::copyContents (const SoFieldContainer * from, SbBool copyconnections) [protected], [virtual]¶

Makes a deep copy of all data of from into this instance, except external scenegraph references if copyconnections is FALSE.

This is the protected method that should be overridden by extension node / engine / dragger / whatever subclasses which needs to account for internal data that are not handled automatically.

For copying nodes from application code, you should not invoke this function directly, but rather call the SoNode::copy() function:

SoNode * mynewnode = templatenode->copy();

The same also goes for engines.

Make sure that when you override the copyContents() method in your extension class that you also make it call upwards to it's parent superclass in the inheritance hierarchy, as copyContents() in for instance SoNode and SoFieldContainer does important work. It should go something like this:

void
MyCoinExtensionNode::copyContents(const SoFieldContainer * from,


                                  SbBool copyconnections)
{


  // let parent superclasses do their thing (copy fields, copy


  // instance name, etc etc)


  SoNode::copyContents(from, copyconnections);


  // [..then copy internal data..]
}

Reimplemented from SoGroup.

int SoVRMLLOD::whichToTraverse (SoAction * action) [protected], [virtual]¶

Returns the child to traverse based on distance to current viewpoint.

SoMFFloat SoVRMLLOD::range¶

The range for each level.

SoSFVec3f SoVRMLLOD::center¶

The center used when calculating distance.

SoMFNode SoVRMLLOD::level¶

The different levels.