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NAME

       SoVRMLAppearance -

       The SoVRMLAppearance class specifies visual properties for shapes.

       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:

SYNOPSIS

       #include <Inventor/VRMLnodes/SoVRMLAppearance.h>

       Inherits SoNode.

   Public Member Functions
       SoVRMLAppearance (void)
       virtual void doAction (SoAction *action)
       virtual void callback (SoCallbackAction *action)
       virtual void GLRender (SoGLRenderAction *action)
       virtual void search (SoSearchAction *action)
       virtual SoChildList * getChildren (void) const
       virtual void notify (SoNotList *list)
       virtual void copyContents (const SoFieldContainer *from, SbBool copyConn)

   Static Public Member Functions
       static void initClass (void)

   Public Attributes
       SoSFNode material
       SoSFNode texture
       SoSFNode textureTransform

   Protected Member Functions
       virtual ~SoVRMLAppearance ()

Detailed Description

       The SoVRMLAppearance class specifies visual properties for shapes.

       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:

         Appearance {
           exposedField SFNode material          NULL
           exposedField SFNode texture           NULL
           exposedField SFNode textureTransform  NULL
         }
         .fi

       The Appearance node specifies the visual properties of geometry. The value for each of the fields in this node may be NULL. However, if the field is non-NULL, it shall contain one node of the appropriate type. The material field, if specified, shall contain a VRMLMaterial node. If the material field is NULL or unspecified, lighting is off (all lights are ignored during rendering of the object that references this Appearance) and the unlit object colour is (1, 1, 1). Details of the VRML lighting model are in 4.14, Lighting model (<http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.14>).

       The texture field, if specified, shall contain one of the various types of texture nodes (VRMLImageTexture, VRMLMovieTexture, or VRMLPixelTexture). If the texture node is NULL or the texture field is unspecified, the object that references this Appearance is not textured. The textureTransform field, if specified, shall contain a VRMLTextureTransform node. If the textureTransform is NULL or unspecified, the textureTransform field has no effect.

Constructor & Destructor Documentation

   SoVRMLAppearance::SoVRMLAppearance (void) Constructor.
   SoVRMLAppearance::~SoVRMLAppearance () [protected, virtual] Destructor.

Member Function Documentation

   void SoVRMLAppearance::initClass (void) [static] Sets up initialization for data common to all
       instances of this class, like submitting necessary information to the Coin type system.
       Reimplemented from SoNode.

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

   void SoVRMLAppearance::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 SoVRMLAppearance::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 SoVRMLAppearance::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 SoNode.

   SoChildList * SoVRMLAppearance::getChildren (void) const [virtual] Returns list of children
       for this node.
       Reimplemented from SoNode.

   void SoVRMLAppearance::notify (SoNotList *l) [virtual] Notifies all auditors for this instance
       when changes are made.
       Reimplemented from SoNode.

   void SoVRMLAppearance::copyContents (const SoFieldContainer *from, SbBoolcopyconnections)
       [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 SoNode.

Member Data Documentation

   SoSFNode SoVRMLAppearance::material Can contain an SoVRMLMaterial node. Is NULL by default.
   SoSFNode SoVRMLAppearance::texture Can contain a texture node. Is NULL by default.
   SoSFNode SoVRMLAppearance::textureTransform Can contain an SoVRMLTextureTransform node. Is
       NULL by default.

Author

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