diff --git a/Modules/MitkExt/Interactions/mitkSegTool2D.cpp b/Modules/MitkExt/Interactions/mitkSegTool2D.cpp
index fa3fbdd82e..a1e0ba7326 100644
--- a/Modules/MitkExt/Interactions/mitkSegTool2D.cpp
+++ b/Modules/MitkExt/Interactions/mitkSegTool2D.cpp
@@ -1,398 +1,403 @@
 /*=========================================================================
 
 Program:   Medical Imaging & Interaction Toolkit
 Language:  C++
 Date:      $Date$
 Version:   $Revision$
 
 Copyright (c) German Cancer Research Center, Division of Medical and
 Biological Informatics. All rights reserved.
 See MITKCopyright.txt or http://www.mitk.org/copyright.html for details.
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notices for more information.
 
 =========================================================================*/
 
 #include "mitkSegTool2D.h"
 #include "mitkToolManager.h"
 
 #include "mitkDataStorage.h"
 #include "mitkBaseRenderer.h"
 
 #include "mitkPlaneGeometry.h"
 
 #include "mitkExtractImageFilter.h"
 #include "mitkExtractDirectedPlaneImageFilter.h"
 
 //Include of the new ImageExtractor
 #include "mitkExtractDirectedPlaneImageFilterNew.h"
 #include "mitkPlanarCircle.h"
 #include "mitkOverwriteSliceImageFilter.h"
 #include "mitkOverwriteDirectedPlaneImageFilter.h"
 
 #include "mitkGetModuleContext.h"
 
 //Includes for 3DSurfaceInterpolation
 #include "mitkImageToContourFilter.h"
 #include "mitkSurfaceInterpolationController.h"
 
 
 #define ROUND(a)     ((a)>0 ? (int)((a)+0.5) : -(int)(0.5-(a)))
 
 mitk::SegTool2D::SegTool2D(const char* type)
 :Tool(type),
  m_LastEventSender(NULL),
  m_LastEventSlice(0),
  m_Contourmarkername ("Position"),
  m_ShowMarkerNodes (true),
  m_3DInterpolationEnabled (true)
 {
   // great magic numbers
   CONNECT_ACTION( 80, OnMousePressed );
   CONNECT_ACTION( 90, OnMouseMoved );
   CONNECT_ACTION( 42, OnMouseReleased );
   CONNECT_ACTION( 49014, OnInvertLogic );
 }
 
 mitk::SegTool2D::~SegTool2D()
 {
 }
 
 bool mitk::SegTool2D::OnMousePressed (Action*, const StateEvent* stateEvent)
 {
   const PositionEvent* positionEvent = dynamic_cast<const PositionEvent*>(stateEvent->GetEvent());
   if (!positionEvent) return false;
 
   if ( positionEvent->GetSender()->GetMapperID() != BaseRenderer::Standard2D ) return false; // we don't want anything but 2D
 
   m_LastEventSender = positionEvent->GetSender();
   m_LastEventSlice = m_LastEventSender->GetSlice();
 
   return true;
 }
 
 bool mitk::SegTool2D::OnMouseMoved   (Action*, const StateEvent* stateEvent)
 {
   const PositionEvent* positionEvent = dynamic_cast<const PositionEvent*>(stateEvent->GetEvent());
   if (!positionEvent) return false;
 
   if ( m_LastEventSender != positionEvent->GetSender() ) return false;
   if ( m_LastEventSlice  != m_LastEventSender->GetSlice() ) return false;
 
   return true;
 }
 
 bool mitk::SegTool2D::OnMouseReleased(Action*, const StateEvent* stateEvent)
 {
   const PositionEvent* positionEvent = dynamic_cast<const PositionEvent*>(stateEvent->GetEvent());
   if (!positionEvent) return false;
 
   if ( m_LastEventSender != positionEvent->GetSender() ) return false;
   if ( m_LastEventSlice  != m_LastEventSender->GetSlice() ) return false;
 
   return true;
 }
 
 bool mitk::SegTool2D::OnInvertLogic(Action*, const StateEvent* stateEvent)
 {
   const PositionEvent* positionEvent = dynamic_cast<const PositionEvent*>(stateEvent->GetEvent());
   if (!positionEvent) return false;
 
   if ( m_LastEventSender != positionEvent->GetSender() ) return false;
   if ( m_LastEventSlice  != m_LastEventSender->GetSlice() ) return false;
 
   return true;
 }
 
 bool mitk::SegTool2D::DetermineAffectedImageSlice( const Image* image, const PlaneGeometry* plane, int& affectedDimension, int& affectedSlice )
 {
   assert(image);
   assert(plane);
 
   // compare normal of plane to the three axis vectors of the image
   Vector3D normal       = plane->GetNormal();
   Vector3D imageNormal0 = image->GetSlicedGeometry()->GetAxisVector(0);
   Vector3D imageNormal1 = image->GetSlicedGeometry()->GetAxisVector(1);
   Vector3D imageNormal2 = image->GetSlicedGeometry()->GetAxisVector(2);
 
   normal.Normalize();
   imageNormal0.Normalize();
   imageNormal1.Normalize();
   imageNormal2.Normalize();
 
   imageNormal0.Set_vnl_vector( vnl_cross_3d<ScalarType>(normal.Get_vnl_vector(),imageNormal0.Get_vnl_vector()) );
   imageNormal1.Set_vnl_vector( vnl_cross_3d<ScalarType>(normal.Get_vnl_vector(),imageNormal1.Get_vnl_vector()) );
   imageNormal2.Set_vnl_vector( vnl_cross_3d<ScalarType>(normal.Get_vnl_vector(),imageNormal2.Get_vnl_vector()) );
 
   double eps( 0.00001 );
   // transversal
   if ( imageNormal2.GetNorm() <= eps )
   {
     affectedDimension = 2;
   }
   // sagittal
   else if ( imageNormal1.GetNorm() <= eps )
   {
     affectedDimension = 1;
   }
   // frontal
   else if ( imageNormal0.GetNorm() <= eps )
   {
     affectedDimension = 0;
   }
   else
   {
     affectedDimension = -1; // no idea
     return false;
   }
 
   // determine slice number in image
   Geometry3D* imageGeometry = image->GetGeometry(0);
   Point3D testPoint = imageGeometry->GetCenter();
   Point3D projectedPoint;
   plane->Project( testPoint, projectedPoint );
 
   Point3D indexPoint;
 
   imageGeometry->WorldToIndex( projectedPoint, indexPoint );
   affectedSlice = ROUND( indexPoint[affectedDimension] );
   MITK_DEBUG << "indexPoint " << indexPoint << " affectedDimension " << affectedDimension << " affectedSlice " << affectedSlice;
 
   // check if this index is still within the image
   if ( affectedSlice < 0 || affectedSlice >= static_cast<int>(image->GetDimension(affectedDimension)) ) return false;
 
   return true;
 }
 
 mitk::Image::Pointer mitk::SegTool2D::GetAffectedImageSliceAs2DImage(const PositionEvent* positionEvent, const Image* image)
 {
   if (!positionEvent) return NULL;
 
   assert( positionEvent->GetSender() ); // sure, right?
   unsigned int timeStep = positionEvent->GetSender()->GetTimeStep( image ); // get the timestep of the visible part (time-wise) of the image
 
   // first, we determine, which slice is affected
   const PlaneGeometry* planeGeometry( dynamic_cast<const PlaneGeometry*> (positionEvent->GetSender()->GetCurrentWorldGeometry2D() ) );
 
   if ( !image || !planeGeometry ) return NULL;
 
   int affectedDimension( -1 );
   int affectedSlice( -1 );
   DetermineAffectedImageSlice( image, planeGeometry, affectedDimension, affectedSlice );
   if ( DetermineAffectedImageSlice( image, planeGeometry, affectedDimension, affectedSlice ) )
   {
     try
     {
       // now we extract the correct slice from the volume, resulting in a 2D image
       ExtractImageFilter::Pointer extractor= ExtractImageFilter::New();
       extractor->SetInput( image );
       extractor->SetSliceDimension( affectedDimension );
       extractor->SetSliceIndex( affectedSlice );
       extractor->SetTimeStep( timeStep );
       extractor->Update();
 
       // here we have a single slice that can be modified
       Image::Pointer slice = extractor->GetOutput();
 
       //Workaround because of bug #7079
       Point3D origin = slice->GetGeometry()->GetOrigin();
 
       int affectedDimension(-1);
 
       if(positionEvent->GetSender()->GetRenderWindow() == mitk::BaseRenderer::GetRenderWindowByName("stdmulti.widget1"))
       {
           affectedDimension = 2;
       }
       if(positionEvent->GetSender()->GetRenderWindow() == mitk::BaseRenderer::GetRenderWindowByName("stdmulti.widget2"))
       {
           affectedDimension = 0;
       }
       if(positionEvent->GetSender()->GetRenderWindow() == mitk::BaseRenderer::GetRenderWindowByName("stdmulti.widget3"))
       {
           affectedDimension = 1;
       }
 
       if (affectedDimension != -1)
       {
           origin[affectedDimension] = planeGeometry->GetOrigin()[affectedDimension];
           slice->GetGeometry()->SetOrigin(origin);
       }
       //Workaround end
 
       return slice;
     }
     catch(...)
     {
       // not working
       return NULL;
     }
   }
   else
   {
     ExtractDirectedPlaneImageFilterNew::Pointer newExtractor = ExtractDirectedPlaneImageFilterNew::New();
     newExtractor->SetInput( image );
     newExtractor->SetActualInputTimestep( timeStep );
     newExtractor->SetCurrentWorldGeometry2D( planeGeometry );
     newExtractor->Update();
     Image::Pointer slice = newExtractor->GetOutput();
     return slice;
   }
 }
 
 mitk::Image::Pointer mitk::SegTool2D::GetAffectedWorkingSlice(const PositionEvent* positionEvent)
 {
   DataNode* workingNode( m_ToolManager->GetWorkingData(0) );
   if ( !workingNode ) return NULL;
 
   Image* workingImage = dynamic_cast<Image*>(workingNode->GetData());
   if ( !workingImage ) return NULL;
 
   return GetAffectedImageSliceAs2DImage( positionEvent, workingImage );
 }
 
 mitk::Image::Pointer mitk::SegTool2D::GetAffectedReferenceSlice(const PositionEvent* positionEvent)
 {
   DataNode* referenceNode( m_ToolManager->GetReferenceData(0) );
   if ( !referenceNode ) return NULL;
 
   Image* referenceImage = dynamic_cast<Image*>(referenceNode->GetData());
   if ( !referenceImage ) return NULL;
 
   return GetAffectedImageSliceAs2DImage( positionEvent, referenceImage );
 }
 
 void mitk::SegTool2D::WriteBackSegmentationResult (const PositionEvent* positionEvent, Image* slice)
 {
   const PlaneGeometry* planeGeometry( dynamic_cast<const PlaneGeometry*> (positionEvent->GetSender()->GetCurrentWorldGeometry2D() ) );
 
   DataNode* workingNode( m_ToolManager->GetWorkingData(0) );
   Image* image = dynamic_cast<Image*>(workingNode->GetData());
 
   int affectedDimension( -1 );
   int affectedSlice( -1 );
   DetermineAffectedImageSlice( image, planeGeometry, affectedDimension, affectedSlice );
 
   if (affectedDimension != -1) {
     OverwriteSliceImageFilter::Pointer slicewriter = OverwriteSliceImageFilter::New();
     slicewriter->SetInput( image );
     slicewriter->SetCreateUndoInformation( true );
     slicewriter->SetSliceImage( slice );
     slicewriter->SetSliceDimension( affectedDimension );
     slicewriter->SetSliceIndex( affectedSlice );
     slicewriter->SetTimeStep( positionEvent->GetSender()->GetTimeStep( image ) );
     slicewriter->Update();
   }
   else {
     OverwriteDirectedPlaneImageFilter::Pointer slicewriter = OverwriteDirectedPlaneImageFilter::New();
     slicewriter->SetInput( image );
     slicewriter->SetCreateUndoInformation( false );
     slicewriter->SetSliceImage( slice );
     slicewriter->SetPlaneGeometry3D( slice->GetGeometry() );
     slicewriter->SetTimeStep( positionEvent->GetSender()->GetTimeStep( image ) );
     slicewriter->Update();
   }
   if ( m_3DInterpolationEnabled )
   {
     slice->DisconnectPipeline();
-    unsigned int pos = this->AddContourmarker(positionEvent);
     ImageToContourFilter::Pointer contourExtractor = ImageToContourFilter::New();
     contourExtractor->SetInput(slice);
     contourExtractor->Update();
     mitk::Surface::Pointer contour = contourExtractor->GetOutput();
-    mitk::ServiceReference serviceRef = mitk::GetModuleContext()->GetServiceReference<PlanePositionManagerService>();
-    PlanePositionManagerService* service = dynamic_cast<PlanePositionManagerService*>(mitk::GetModuleContext()->GetService(serviceRef));
-    mitk::SurfaceInterpolationController::GetInstance()->AddNewContour( contour, service->GetPlanePosition(pos));
-    contour->DisconnectPipeline();
+
+    if (contour->GetVtkPolyData()->GetNumberOfPoints() > 0 )
+    {
+      unsigned int pos = this->AddContourmarker(positionEvent);
+      mitk::ServiceReference serviceRef = mitk::GetModuleContext()->GetServiceReference<PlanePositionManagerService>();
+      PlanePositionManagerService* service = dynamic_cast<PlanePositionManagerService*>(mitk::GetModuleContext()->GetService(serviceRef));
+      mitk::SurfaceInterpolationController::GetInstance()->AddNewContour( contour, service->GetPlanePosition(pos));
+      contour->DisconnectPipeline();
+    }
+
   }
 }
 
 void mitk::SegTool2D::SetShowMarkerNodes(bool status)
 {
     m_ShowMarkerNodes = status;
 }
 
 void mitk::SegTool2D::Enable3DInterpolation(bool status)
 {
     m_3DInterpolationEnabled = status;
 }
 
 unsigned int mitk::SegTool2D::AddContourmarker ( const PositionEvent* positionEvent )
 {
   const mitk::Geometry2D* plane = dynamic_cast<const Geometry2D*> (dynamic_cast< const mitk::SlicedGeometry3D*>(
     positionEvent->GetSender()->GetSliceNavigationController()->GetCurrentGeometry3D())->GetGeometry2D(0));
 
   mitk::ServiceReference serviceRef = mitk::GetModuleContext()->GetServiceReference<PlanePositionManagerService>();
   PlanePositionManagerService* service = dynamic_cast<PlanePositionManagerService*>(mitk::GetModuleContext()->GetService(serviceRef));
   unsigned int size = service->GetNumberOfPlanePositions();
   unsigned int id = service->AddNewPlanePosition(plane, positionEvent->GetSender()->GetSliceNavigationController()->GetSlice()->GetPos());
 
   mitk::PlanarCircle::Pointer contourMarker = mitk::PlanarCircle::New();
   contourMarker->SetGeometry2D( const_cast<Geometry2D*>(plane));
 
   std::stringstream markerStream;
   mitk::DataNode* workingNode (m_ToolManager->GetWorkingData(0));
 
   markerStream << m_Contourmarkername ;
   markerStream << " ";
   markerStream << id+1;
 
   DataNode::Pointer rotatedContourNode = DataNode::New();
 
   rotatedContourNode->SetData(contourMarker);
   rotatedContourNode->SetProperty( "name", StringProperty::New(markerStream.str()) );
   rotatedContourNode->SetProperty( "isContourMarker", BoolProperty::New(true));
   rotatedContourNode->SetBoolProperty( "PlanarFigureInitializedWindow", true, positionEvent->GetSender() );
   rotatedContourNode->SetProperty( "includeInBoundingBox", BoolProperty::New(false));
   rotatedContourNode->SetProperty( "helper object", mitk::BoolProperty::New(!m_ShowMarkerNodes));
 
   if (plane)
   {
 
     if ( id ==  size )
     {
       m_ToolManager->GetDataStorage()->Add(rotatedContourNode, workingNode);
     }
     else
     {
         mitk::NodePredicateProperty::Pointer isMarker = mitk::NodePredicateProperty::New("isContourMarker", mitk::BoolProperty::New(true));
 
         mitk::DataStorage::SetOfObjects::ConstPointer markers = m_ToolManager->GetDataStorage()->GetDerivations(workingNode,isMarker);
 
         for ( mitk::DataStorage::SetOfObjects::const_iterator iter = markers->begin();
           iter != markers->end();
           ++iter)
         {
             std::string nodeName = (*iter)->GetName();
             unsigned int t = nodeName.find_last_of(" ");
             unsigned int markerId = atof(nodeName.substr(t+1).c_str())-1;
             if(id == markerId)
             {
                 return id;
             }
         }
         m_ToolManager->GetDataStorage()->Add(rotatedContourNode, workingNode);
     }
   }
   return id;
 }
 
 void mitk::SegTool2D::InteractiveSegmentationBugMessage( const std::string& message )
 {
   MITK_ERROR << "********************************************************************************" << std::endl
     << " " << message << std::endl
     << "********************************************************************************" << std::endl
     << "  " << std::endl
     << " If your image is rotated or the 2D views don't really contain the patient image, try to press the button next to the image selection. " << std::endl
     << "  " << std::endl
     << " Please file a BUG REPORT: " << std::endl
     << " http://bugs.mitk.org" << std::endl
     << " Contain the following information:" << std::endl
     << "  - What image were you working on?" << std::endl
     << "  - Which region of the image?" << std::endl
     << "  - Which tool did you use?" << std::endl
     << "  - What did you do?" << std::endl
     << "  - What happened (not)? What did you expect?" << std::endl;
 }