#ifndef __fpa__Base__RegionGrow__hxx__
#define __fpa__Base__RegionGrow__hxx__

// -------------------------------------------------------------------------
template< class _TSuperclass >
fpa::Base::RegionGrow< _TSuperclass >::
RegionGrow( )
  : Superclass( ),
    m_InsideValue( TOutput( 1 ) ),
    m_OutsideValue( TOutput( 0 ) )
{
  this->m_InitResult = TOutput( 0 );
}

// -------------------------------------------------------------------------
template< class _TSuperclass >
fpa::Base::RegionGrow< _TSuperclass >::
~RegionGrow( )
{
}

// -------------------------------------------------------------------------
template< class _TSuperclass >
bool fpa::Base::RegionGrow< _TSuperclass >::
_UpdateValue( _TQueueNode& v, const _TQueueNode& p )
{
  if( this->m_GrowFunction.IsNotNull( ) )
  {
    bool in = this->m_GrowFunction->Evaluate( p.Vertex, v.Vertex );
    v.Result = ( in )? this->m_InsideValue: this->m_OutsideValue;
    return( in );
  }
  else
  {
    v.Result = this->m_InitResult;
    return( false );

  } // fi
}

// -------------------------------------------------------------------------
template< class _TSuperclass >
unsigned long fpa::Base::RegionGrow< _TSuperclass >::
_QueueSize( ) const
{
  return( this->m_Queue.size( ) );
}

// -------------------------------------------------------------------------
template< class _TSuperclass >
void fpa::Base::RegionGrow< _TSuperclass >::
_QueueClear( )
{
  while( this->m_Queue.size( ) > 0 )
    this->m_Queue.pop( );
}

// -------------------------------------------------------------------------
template< class _TSuperclass >
void fpa::Base::RegionGrow< _TSuperclass >::
_QueuePush( const _TQueueNode& node )
{
  this->m_Queue.push( node );
}

// -------------------------------------------------------------------------
template< class _TSuperclass >
typename fpa::Base::RegionGrow< _TSuperclass >::
_TQueueNode fpa::Base::RegionGrow< _TSuperclass >::
_QueuePop( )
{
  _TQueueNode f = this->m_Queue.front( );
  this->m_Queue.pop( );
  return( f );
}

#endif // __fpa__Base__RegionGrow__hxx__

// eof - $RCSfile$