void cpExtensions::DataStructures::Graph< V, C, I >::
 RemoveVertex( const I& index )
 {
-#error REMOVE
+  auto i = this->m_Vertices.find( index );
+  if( i != this->m_Vertices.end( ) )
+  {
+    // Delete vertex
+    this->m_Vertices.erase( i );
+
+    // Delete edges starting from given vertex
+    auto mIt = this->m_Matrix.find( index );
+    if( mIt != this->m_Matrix.end( ) )
+      this->m_Matrix.erase( mIt );
+
+    // Delete edges arriving to given vertex
+    mIt = this->m_Matrix.begin( );
+    for( ; mIt != this->m_Matrix.end( ); ++mIt )
+    {
+      auto rIt = mIt->second.begin( );
+      while( rIt != mIt->second.end( ) )
+      {
+        if( rIt->first == index )
+        {
+          mIt->second.erase( rIt );
+          rIt = mIt->second.begin( );
+        }
+        else
+          ++rIt;
+
+      } // elihw
+
+    } // rof
+    return( true );
+  }
+  else
+    return( false );
 }
 
 // -------------------------------------------------------------------------
 void cpExtensions::DataStructures::Graph< V, C, I >::
 RemoveConnection( const I& orig, const I& dest, const C& cost )
 {
-#error remove connection
+  auto m = this->m_Matrix.find( orig );
+  if( m != this->m_Matrix.end( ) )
+  {
+    auto r = m->second.find( dest );
+    if( r != m->second.end( ) )
+    {
+      auto e = std::find( r->second.begin( ), r->second.end( ), cost );
+      if( e != r->second.end( ) )
+      {
+        r->second.erase( e );
+        if( r->second.size( ) == 0 )
+        {
+          m->second.erase( r );
+          if( m->second.size( ) == 0 )
+            this->m_Matrix.erase( m );
+
+        } // fi
+
+      } // fi
+
+    } // fi
+
+  } // fi
 }
 
 // -------------------------------------------------------------------------
 
     this->m_Interface = i;
 }
 
-/* TODO
-   bool cpPlugins::Interface::Workspace::
-   LoadPluginsPath( const std::string& path, bool r )
-   {
-   // Load all plugins from given folder
-   std::list< std::string > files =
-   this->m_Interface.LoadFromFolder( path, r );
-   
-   // Update a simple track
-   bool ret = false;
-   if( files.size( ) > 0 )
-   {
-   for( auto fIt = files.begin( ); fIt != files.end( ); ++fIt )
-   {
-   this->m_LoadedPlugins.insert( *fIt );
-   this->m_LastLoadedPlugin = *fIt;
-   
-   } // rof
-   this->_UpdateLoadedPluginsInformation( );
-   ret = true;
-   
-   } // fi
-   return( ret );
-   }
-
-   // -------------------------------------------------------------------------
-   bool cpPlugins::Interface::Workspace::
-   LoadPlugins( const std::string& fname )
-   {
-   // Is it already loaded?
-   bool ret = true;
-   if( this->m_LoadedPlugins.find( fname ) == this->m_LoadedPlugins.end( ) )
-   {
-   // Was it succesfully loaded?
-   ret = this->m_Interface.Load( fname );
-   
-   // Update a simple track
-   if( ret )
-   {
-   this->m_LoadedPlugins.insert( fname );
-   this->m_LastLoadedPlugin = fname;
-   this->_UpdateLoadedPluginsInformation( );
-   
-   } // fi
-   
-   } // fi
-   return( ret );
-   }
-   
-   // -------------------------------------------------------------------------
-   const cpPlugins::Interface::Workspace::
-   TStringContainer& cpPlugins::Interface::Workspace::
-   GetLoadedPlugins( ) const
-   {
-   return( this->m_LoadedPlugins );
-   }
-   
-   // -------------------------------------------------------------------------
-   void cpPlugins::Interface::Workspace::
-   GetLoadedPluginCategories( TStringContainer& categories ) const
-   {
-   categories.clear( );
-   auto fIt = this->m_LoadedFilters.begin( );
-   for( ; fIt != this->m_LoadedFilters.end( ); ++fIt )
-   categories.insert( fIt->first );
-   }
-   
-   // -------------------------------------------------------------------------
-   void cpPlugins::Interface::Workspace::
-   GetLoadedPluginFilters( TStringContainer& filters ) const
-   {
-   filters.clear( );
-   auto pIt = this->m_LoadedFilters.begin( );
-   for( ; pIt != this->m_LoadedFilters.end( ); ++pIt )
-   for( auto fIt = pIt->second.begin( ); fIt != pIt->second.end( ); ++fIt )
-   filters.insert( *fIt );
-   }
-   
-   // -------------------------------------------------------------------------
-   const cpPlugins::Interface::Workspace::
-   TStringContainer& cpPlugins::Interface::Workspace::
-   GetLoadedPluginFilters( const std::string& category ) const
-   {
-   static const TStringContainer EMPTY;
-   auto pIt = this->m_LoadedFilters.find( category );
-   if( pIt != this->m_LoadedFilters.end( ) )
-   return( pIt->second );
-   else
-   return( EMPTY );
-   }
-*/
-
 // -------------------------------------------------------------------------
 void cpPlugins::Interface::Workspace::
 Clear( )
   )
 {
   // Get filters
-  TFilter* orig =
-    dynamic_cast< TFilter* >(
-      this->m_Graph->GetVertex( orig_filter ).GetPointer( )
-      );
-  TFilter* dest =
-    dynamic_cast< TFilter* >(
-      this->m_Graph->GetVertex( dest_filter ).GetPointer( )
-      );
+  TFilter* orig = this->GetFilter( orig_filter );
+  TFilter* dest = this->GetFilter( dest_filter );
   if( orig == NULL || dest == NULL )
     return( false );
 
 
 // -------------------------------------------------------------------------
 bool cpPlugins::Interface::Workspace::
-Connect( const std::string& i, const std::string& o )
+Connect( TData* input_object, const std::string& input_name )
 {
-  auto ii = this->m_InputPorts.find( i );
-  auto oi = this->m_OutputPorts.find( o );
-  if( ii != this->m_InputPorts.end( ) && oi != this->m_OutputPorts.end( ) )
-    return(
-      this->Connect(
-        oi->second.first,
-        ii->second.first,
-        oi->second.second,
-        ii->second.second
-        )
-      );
+  auto port = this->m_InputPorts.find( input_name );
+  if( port != this->m_InputPorts.end( ) )
+  {
+    TFilter* filter = this->GetFilter( port->second.first );
+    if( filter != NULL )
+    {
+      filter->SetInput( port->second.second, input_object );
+      return( true );
+    }
+    else
+      return( false );
+  }
   else
     return( false );
 }
 TParameters* cpPlugins::Interface::Workspace::
 GetParameters( const std::string& name )
 {
-  TFilter* f =
-    dynamic_cast< TFilter* >(
-      this->m_Graph->GetVertex( name ).GetPointer( )
-      );
+  TFilter* f = this->GetFilter( name );
   if( f != NULL )
     return( f->GetParameters( ) );
   else
 TParameters* cpPlugins::Interface::Workspace::
 GetParameters( const std::string& name ) const
 {
-  const TFilter* f =
-    dynamic_cast< const TFilter* >(
-      this->m_Graph->GetVertex( name ).GetPointer( )
-      );
+  const TFilter* f = this->GetFilter( name );
   if( f != NULL )
     return( f->GetParameters( ) );
   else
   this->m_OutputPorts[ name ] = TGlobalPort( filter, filter_output );
 }
 
+// -------------------------------------------------------------------------
+cpPlugins::Interface::Workspace::
+TData* cpPlugins::Interface::Workspace::
+GetOutput( const std::string& name )
+{
+  auto port = this->m_OutputPorts.find( name );
+  if( port != this->m_OutputPorts.end( ) )
+  {
+    TFilter* f = this->GetFilter( port->second.first );
+    if( f != NULL )
+      return( f->GetOutput< TData >( port->second.second ) );
+    else
+      return( NULL );
+  }
+  else
+    return( NULL );
+}
+
+// -------------------------------------------------------------------------
+const cpPlugins::Interface::Workspace::
+TData* cpPlugins::Interface::Workspace::
+GetOutput( const std::string& name ) const
+{
+  auto port = this->m_OutputPorts.find( name );
+  if( port != this->m_OutputPorts.end( ) )
+  {
+    const TFilter* f = this->GetFilter( port->second.first );
+    if( f != NULL )
+      return( f->GetOutput< TData >( port->second.second ) );
+    else
+      return( NULL );
+  }
+  else
+    return( NULL );
+}
+
 // -------------------------------------------------------------------------
 void cpPlugins::Interface::Workspace::
 ClearInputPorts( )
 Execute( const std::string& name, QWidget* p )
 {
   // Get filter
-  TFilter* f =
-    dynamic_cast< TFilter* >(
-      this->m_Graph->GetVertex( name ).GetPointer( )
-      );
+  TFilter* f = this->GetFilter( name );
   if( f == NULL )
     return(
       std::string( "cpPlugins::Interface::Workspace: Vertex \"" ) +
     return( f->Update( ) );
 }
 
-// -------------------------------------------------------------------------
-void cpPlugins::Interface::Workspace::
-_UpdateLoadedPluginsInformation( )
-{
-  /* TODO
-     if( this->m_Interface != NULL )
-     {
-     this->m_LoadedFilters.clear( );
-     const TInterface::TClasses& cls = this->m_Interface->GetClasses( );
-     for( auto i = cls.begin( ); i != cls.end( ); ++i )
-     {
-     TFilter::Pointer o = this->m_Interface->CreateObject( i->first );
-     std::string name = o->GetClassName( );
-     std::string category = o->GetClassCategory( );
-     this->m_LoadedFilters[ category ].insert( name );
-
-     } // rof
-
-     } // fi
-  */
-}
-
 // eof - $RCSfile$