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  /*!
    \class SoDecomposeVec4f SoDecomposeVec4f.h Inventor/engines/SoDecomposeVec4f.h
    \brief The SoDecomposeVec4f class is used to decompose 4D vectors into four floats.
  
    \ingroup engines
  */
  
  #include <Inventor/engines/SoDecomposeVec4f.h>
  #include <Inventor/lists/SoEngineOutputList.h>
  
  #include "engines/SoSubEngineP.h"
  
  SO_ENGINE_SOURCE(SoDecomposeVec4f);
  
  /*!
    \var SoMFVec4f SoDecomposeVec4f::vector
    Set of input vectors to be decomposed into their coordinate
    elements.
  */
  /*!
    \var SoEngineOutput SoDecomposeVec4f::x
    (SoMFFloat) First coordinates of the input vectors.
  */
  /*!
    \var SoEngineOutput SoDecomposeVec4f::y
    (SoMFFloat) Second coordinates of the input vectors.
  */
  /*!
    \var SoEngineOutput SoDecomposeVec4f::z
    (SoMFFloat) Third coordinates of the input vectors.
  */
  /*!
    \var SoEngineOutput SoDecomposeVec4f::w
    (SoMFFloat) Fourth coordinates of the input vectors.
  */
  
  
  #ifndef DOXYGEN_SKIP_THIS // No need to document these.
  
  SoDecomposeVec4f::SoDecomposeVec4f()
  {
    SO_ENGINE_INTERNAL_CONSTRUCTOR(SoDecomposeVec4f);
  
    SO_ENGINE_ADD_INPUT(vector,(0,0,0,0));
  
    SO_ENGINE_ADD_OUTPUT(x,SoMFFloat);
    SO_ENGINE_ADD_OUTPUT(y,SoMFFloat);
    SO_ENGINE_ADD_OUTPUT(z,SoMFFloat);
    SO_ENGINE_ADD_OUTPUT(w,SoMFFloat);
  }
  
  // Documented in superclass.
  void
  SoDecomposeVec4f::initClass()
  {
    SO_ENGINE_INTERNAL_INIT_CLASS(SoDecomposeVec4f);
  }
  
  //
  // private members
  //
  SoDecomposeVec4f::~SoDecomposeVec4f()
  {
  }
  
  // Documented in superclass.
  void
  SoDecomposeVec4f::evaluate()
  {
    int num = this->vector.getNum();
  
    SO_ENGINE_OUTPUT(x,SoMFFloat,setNum(num));
    SO_ENGINE_OUTPUT(y,SoMFFloat,setNum(num));
    SO_ENGINE_OUTPUT(z,SoMFFloat,setNum(num));
    SO_ENGINE_OUTPUT(w,SoMFFloat,setNum(num));
  
    int i;
    for (i = 0; i < num; i++) {
      SO_ENGINE_OUTPUT(x,SoMFFloat,set1Value(i,vector[i][0]));
      SO_ENGINE_OUTPUT(y,SoMFFloat,set1Value(i,vector[i][1]));
      SO_ENGINE_OUTPUT(z,SoMFFloat,set1Value(i,vector[i][2]));
      SO_ENGINE_OUTPUT(w,SoMFFloat,set1Value(i,vector[i][3]));
    }
  }
  
  #endif // !DOXYGEN_SKIP_THIS
  