#ifndef __FPA__BASE__REGIONGROW__HXX__
#define __FPA__BASE__REGIONGROW__HXX__

// -------------------------------------------------------------------------
template< class _TSuperclass >
fpa::Base::RegionGrow< _TSuperclass >::
RegionGrow( )
  : Superclass( ),
    m_RegionGrowFunction( NULL ),
    m_InsideValue( TScalar( 1 ) ),
    m_OutsideValue( TScalar( 0 ) )
{
}

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

// -------------------------------------------------------------------------
template< class _TSuperclass >
bool fpa::Base::RegionGrow< _TSuperclass >::
_Result( TNode& node, const TNode& parent )
{
  if( this->m_RegionGrowFunction.IsNotNull( ) )
  {
    bool res = this->m_RegionGrowFunction->Evaluate( node.Vertex );
    node.Result = ( res )? this->m_InsideValue: this->m_OutsideValue;
    return( res );
  }
  else
  {
    node.Result = this->m_OutsideValue;
    return( false );

  } // fi
}

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

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

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

// -------------------------------------------------------------------------
template< class _TSuperclass >
bool fpa::Base::RegionGrow< _TSuperclass >::
_IsQueueEmpty( ) const
{
  return( this->m_Queue.size( ) == 0 );
}

#endif // __FPA__BASE__REGIONGROW__HXX__

// eof - $RCSfile$