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NAME

       SoVRMLNormalInterpolator -

       The SoVRMLNormalInterpolator class is used to interpolate normals.

       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/SoVRMLNormalInterpolator.h>

       Inherits SoVRMLInterpolator.

   Public Member Functions
       SoVRMLNormalInterpolator (void)

   Static Public Member Functions
       static void initClass (void)

   Public Attributes
       SoMFVec3f keyValue
       SoEngineOutput value_changed

   Protected Member Functions
       virtual ~SoVRMLNormalInterpolator ()

Detailed Description

       The SoVRMLNormalInterpolator class is used to interpolate normals.

       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:

         NormalInterpolator {
           eventIn      SFFloat set_fraction       # (-inf, inf)
           exposedField MFFloat key           []   # (-inf, inf)
           exposedField MFVec3f keyValue      []   # (-inf, inf)
           eventOut     MFVec3f value_changed
         }
         .fi

       The NormalInterpolator node interpolates among a list of normal vector sets specified by the keyValue field. The output vector, value_changed, shall be a set of normalized vectors. Values in the keyValue field shall be of unit length. The number of normals in the keyValue field shall be an integer multiple of the number of keyframes in the key field. That integer multiple defines how many normals will be contained in the value_changed events. Normal interpolation shall be performed on the surface of the unit sphere. That is, the output values for a linear interpolation from a point P on the unit sphere to a point Q also on the unit sphere shall lie along the shortest arc (on the unit sphere) connecting points P and Q. Also, equally spaced input fractions shall result in arcs of equal length. The results are undefined if P and Q are diagonally opposite. A more detailed discussion of interpolators is provided in 4.6.8, Interpolator nodes (<http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.8>).

Constructor & Destructor Documentation

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

Member Function Documentation

   void SoVRMLNormalInterpolator::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 SoVRMLInterpolator.

Member Data Documentation

   SoMFVec3f SoVRMLNormalInterpolator::keyValue The keyValue vector.
   SoEngineOutput SoVRMLNormalInterpolator::value_changed The eventOut which is sent every time
       the interpolator has calculated a new value.

Author

       Generated automatically by Doxygen for Coin from the source code.