NAME

       SoCacheHint -

       The SoCacheHint class is a node containing hints about how to cache geometry.

       The SoCacheHint node is used to set up clues to the rendering subsystem about how Coin
       should cache vertex data.

SYNOPSIS

       #include <Inventor/nodes/SoCacheHint.h>

       Inherits SoNode.

   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.
       SoCacheHint (void)
       virtual void doAction (SoAction *action)
       virtual void GLRender (SoGLRenderAction *action)
       virtual void callback (SoCallbackAction *action)
       virtual void getBoundingBox (SoGetBoundingBoxAction *action)
       virtual void pick (SoPickAction *action)

   Static Public Member Functions
       static SoType getClassTypeId (void)
       static void initClass (void)

   Public Attributes
       SoSFFloat memValue
       SoSFFloat gfxValue

   Protected Member Functions
       virtual const SoFieldData * getFieldData (void) const
       virtual ~SoCacheHint ()

   Static Protected Member Functions
       static const SoFieldData ** getFieldDataPtr (void)

   Additional Inherited Members

Detailed Description

       The SoCacheHint class is a node containing hints about how to cache geometry.

       The SoCacheHint node is used to set up clues to the rendering subsystem about how Coin
       should cache vertex data.

       Please note that this is an experimental class. The API might change a lot before/if it's
       included in any official Coin release.

       FILE FORMAT/DEFAULTS:

       CacheHint {
           memValue 0.5
           gfxValue 0.5
       }

Constructor & Destructor Documentation

   SoCacheHint::SoCacheHint (void)
       Constructor.

   SoCacheHint::~SoCacheHint () [protected],  [virtual]
       Destructor.

Member Function Documentation

   SoType SoCacheHint::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.

   const SoFieldData * SoCacheHint::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 SoFieldContainer.

   void SoCacheHint::doAction (SoAction *action) [virtual]
       This function performs the typical operation of a node for any action.

       Reimplemented from SoNode.

   void SoCacheHint::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 SoNode.

   void SoCacheHint::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.

   void SoCacheHint::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 SoNode.

   void SoCacheHint::pick (SoPickAction *action) [virtual]
       Action method for SoPickAction.

       Does common processing for SoPickAction action instances.

       Reimplemented from SoNode.

Member Data Documentation

   SoSFFloat SoCacheHint::memValue
       Sets the value for main memory usage. Should be a number between 0 and 1. A higher value
       will use more memory for caching. Default value is 0.5

   SoSFFloat SoCacheHint::gfxValue
       Sets the value for gfx memory usage. Should be a number between 0 and 1. A higher value
       will use more memory for caching. Default value is 0.5

Author

       Generated automatically by Doxygen for Coin from the source code.