Coin / src / engines / SoDecomposeVec2f.cpp

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/*!
  \class SoDecomposeVec2f SoCompose.h Inventor/engines/SoCompose.h
  \brief The SoDecomposeVec2f class is used to decompose 2D vectors into two floats.
  \ingroup engines
*/

#include <Inventor/engines/SoDecomposeVec2f.h>
#include <Inventor/lists/SoEngineOutputList.h>

#include "engines/SoSubEngineP.h"

SO_ENGINE_SOURCE(SoDecomposeVec2f);

/*!
  \var SoMFVec2f SoDecomposeVec2f::vector
  Set of input vectors to be decomposed into their coordinate
  elements.
*/
/*!
  \var SoEngineOutput SoDecomposeVec2f::x
  (SoMFFloat) First coordinates of the input vectors.
*/
/*!
  \var SoEngineOutput SoDecomposeVec2f::y
  (SoMFFloat) Second coordinates of the input vectors.
*/


#ifndef DOXYGEN_SKIP_THIS // No need to document these.

SoDecomposeVec2f::SoDecomposeVec2f()
{
  SO_ENGINE_INTERNAL_CONSTRUCTOR(SoDecomposeVec2f);

  SO_ENGINE_ADD_INPUT(vector,(0,0));

  SO_ENGINE_ADD_OUTPUT(x,SoMFFloat);
  SO_ENGINE_ADD_OUTPUT(y,SoMFFloat);
}

// Documented in superclass.
void
SoDecomposeVec2f::initClass()
{
  SO_ENGINE_INTERNAL_INIT_CLASS(SoDecomposeVec2f);
}

//
// private members
//
SoDecomposeVec2f::~SoDecomposeVec2f()
{
}

// Documented in superclass.
void
SoDecomposeVec2f::evaluate()
{
  int num = this->vector.getNum();

  SO_ENGINE_OUTPUT(x,SoMFFloat,setNum(num));
  SO_ENGINE_OUTPUT(y,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]));
  }
}

#endif // !DOXYGEN_SKIP_THIS
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