virtual SoType getTypeId (void) const

SoLOD (void)

SoLOD (int numchildren)

virtual void doAction (SoAction *action)

virtual void callback (SoCallbackAction *action)

virtual void GLRender (SoGLRenderAction *action)

virtual void GLRenderBelowPath (SoGLRenderAction *action)

virtual void GLRenderInPath (SoGLRenderAction *action)

virtual void GLRenderOffPath (SoGLRenderAction *action)

virtual void rayPick (SoRayPickAction *action)

virtual void getBoundingBox (SoGetBoundingBoxAction *action)

virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

virtual void audioRender (SoAudioRenderAction *action)

virtual void notify (SoNotList *nl)

static SoType getClassTypeId (void)

static void initClass (void)

SoMFFloat range

SoSFVec3f center

virtual const SoFieldData * getFieldData (void) const

virtual ~SoLOD ()

virtual int whichToTraverse (SoAction *)

static const SoFieldData ** getFieldDataPtr (void)

class SoLODP

Default constructor.

Constructor.

The argument should be the approximate number of children which is expected to be inserted below this node. The number need not be exact, as it is only used as a hint for better memory resource allocation.

Destructor.

This static method returns the SoType object associated with objects of this class.

Reimplemented from SoGroup.

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
    }
  }

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.

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Reimplemented from SoGroup.

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

Reimplemented from SoGroup.

Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoGroup.

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

Reimplemented from SoGroup.

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.

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.

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

Reimplemented from SoNode.

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

Reimplemented from SoNode.

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

Reimplemented from SoNode.

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.

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.

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.

Action method for SoAudioRenderAction.

Does common processing for SoAudioRenderAction action instances.

Reimplemented from SoGroup.

Notifies all auditors for this instance when changes are made.

Reimplemented from SoNode.

Returns the child to traverse based on the ranges in SoLOD::range. Will clamp to index to the number of children. This method will return -1 if no child should be traversed. This will only happen if the node has no children though.

The distance ranges which decides when to use each child for traversal / rendering. See usage example in main class documentation of SoLOD for an explanation of how this vector should be set up correctly.

By default this vector just contains a single value 0.0f.

This vector represents an offset within the object from the geometric center point to the center point the application programmer would actually like the distance between the viewer and the object to be calculated from.

Default value is [0, 0, 0]. It is usually not necessary to change this field.