trusty (3) SoVRMLNormal.3.gz

NAME

       SoVRMLNormal -

       The SoVRMLNormal class is used to bind normals to geometry.

       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/SoVRMLNormal.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.
       SoVRMLNormal (void)
       virtual void doAction (SoAction *action)
       virtual void GLRender (SoGLRenderAction *action)
       virtual void callback (SoCallbackAction *action)
       virtual void pick (SoPickAction *action)
       virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

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

   Public Attributes
       SoMFVec3f vector

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

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

   Additional Inherited Members

Detailed Description

       The SoVRMLNormal class is used to bind normals to geometry.

       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:

       Normal {
         exposedField MFVec3f vector  []   # (-,)
       }

       This node defines a set of 3D surface normal vectors to be used in the vector field of some geometry
       nodes (e.g., SoVRMLIndexedFaceSet and SoVRMLElevationGrid). This node contains one multiple-valued field
       that contains the normal vectors. Normals shall be of unit length.

Constructor & Destructor Documentation

   SoVRMLNormal::SoVRMLNormal (void)
       Constructor.

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

Member Function Documentation

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

       Reimplemented from SoNode.

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

       Does common processing for SoPickAction action instances.

       Reimplemented from SoNode.

   void SoVRMLNormal::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 SoNode.

Member Data Documentation

   SoMFVec3f SoVRMLNormal::vector
       The normal vectors. Empty by default.

Author

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