diff --git a/Core/Code/Testing/mitkClippedSurfaceBoundsCalculatorTest.cpp b/Core/Code/Testing/mitkClippedSurfaceBoundsCalculatorTest.cpp
index 9c944abcda..427b8cf5bc 100644
--- a/Core/Code/Testing/mitkClippedSurfaceBoundsCalculatorTest.cpp
+++ b/Core/Code/Testing/mitkClippedSurfaceBoundsCalculatorTest.cpp
@@ -1,373 +1,388 @@
 /*=========================================================================
 
 Program:   Medical Imaging & Interaction Toolkit
 Language:  C++
 Date:      $Date: 2008-02-25 17:27:17 +0100 (Mo, 25 Feb 2008) $
 Version:   $Revision: 7837 $
 
 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 "mitkTestingMacros.h"
 
 #include <iostream>
 
 #include "mitkClippedSurfaceBoundsCalculator.h"
 #include "mitkGeometry3D.h"
 #include "mitkGeometry2D.h"
 #include "mitkVector.h"
 
 static void CheckPlanesInsideBoundingBoxOnlyOnOneSlice(mitk::Geometry3D::Pointer geometry3D)
 {
   //Check planes which are inside the bounding box
 
   mitk::ClippedSurfaceBoundsCalculator* calculator = new mitk::ClippedSurfaceBoundsCalculator();
   mitk::Image::Pointer image = mitk::Image::New();
   image->SetGeometry(geometry3D);
 
   //Check planes which are only on one slice:
 
   //Slice 0
   mitk::Point3D origin;
   origin[0] = 511;
   origin[1] = 0;
   origin[2] = 0;
 
   mitk::Vector3D normal;
   mitk::FillVector3D(normal, 0, 0, 1);
 
   mitk::PlaneGeometry::Pointer planeOnSliceZero = mitk::PlaneGeometry::New();
   planeOnSliceZero->InitializePlane(origin, normal);
 
   calculator->SetInput( planeOnSliceZero , image);
   calculator->Update();
 
   mitk::ClippedSurfaceBoundsCalculator::OutputType minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == minMax.second, "Check if plane is only on one slice");
   MITK_TEST_CONDITION(minMax.first == 0 && minMax.second == 0, "Check if plane is on slice 0");
 
 
   //Slice 3
   origin[2] = 3;
 
   mitk::PlaneGeometry::Pointer planeOnSliceThree = mitk::PlaneGeometry::New();
   planeOnSliceThree->InitializePlane(origin, normal);
   planeOnSliceThree->SetImageGeometry(false);
 
   calculator->SetInput( planeOnSliceThree , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == minMax.second, "Check if plane is only on one slice");
   MITK_TEST_CONDITION(minMax.first == 3 && minMax.second == 3, "Check if plane is on slice 3");
 
   //Slice 17
   origin[2] = 17;
 
   mitk::PlaneGeometry::Pointer planeOnSliceSeventeen = mitk::PlaneGeometry::New();
   planeOnSliceSeventeen->InitializePlane(origin, normal);
 
   calculator->SetInput( planeOnSliceSeventeen , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == minMax.second, "Check if plane is only on one slice");
   MITK_TEST_CONDITION(minMax.first == 17 && minMax.second == 17, "Check if plane is on slice 17");
 
 
   //Slice 20
   origin[2] = 19;
 
   mitk::PlaneGeometry::Pointer planeOnSliceTwenty = mitk::PlaneGeometry::New();
   planeOnSliceTwenty->InitializePlane(origin, normal);
 
   calculator->SetInput( planeOnSliceTwenty , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == minMax.second, "Check if plane is only on one slice");
   MITK_TEST_CONDITION(minMax.first == 19 && minMax.second == 19, "Check if plane is on slice 19");
 
   delete calculator;
 }
 
 static void CheckPlanesInsideBoundingBox(mitk::Geometry3D::Pointer geometry3D)
 {
   //Check planes which are inside the bounding box
 
   mitk::ClippedSurfaceBoundsCalculator* calculator = new mitk::ClippedSurfaceBoundsCalculator();
   mitk::Image::Pointer image = mitk::Image::New();
   image->SetGeometry(geometry3D);
 
   //Check planes which are only on one slice:
   //Slice 0
   mitk::Point3D origin;
   origin[0] = 511; // Set to 511.9 so that the intersection point is inside the bounding box
   origin[1] = 0;
   origin[2] = 0;
 
   mitk::Vector3D normal;
   mitk::FillVector3D(normal, 1, 0, 0);
 
   mitk::PlaneGeometry::Pointer planeSagittalOne = mitk::PlaneGeometry::New();
   planeSagittalOne->InitializePlane(origin, normal);
 
   calculator->SetInput( planeSagittalOne , image);
   calculator->Update();
 
   mitk::ClippedSurfaceBoundsCalculator::OutputType minMax = calculator->GetMinMaxSpatialDirectionZ();
   MITK_TEST_CONDITION(minMax.first == 0 && minMax.second == 19, "Check if plane is from slice 0 to slice 19");
 
 
   //Slice 3
   origin[0] = 256;
 
   MITK_INFO << "Case1 origin: " << origin;
 
   mitk::PlaneGeometry::Pointer planeSagittalTwo = mitk::PlaneGeometry::New();
   planeSagittalTwo->InitializePlane(origin, normal);
 
   MITK_INFO << "PlaneNormal: " << planeSagittalTwo->GetNormal();
   MITK_INFO << "PlaneOrigin: " << planeSagittalTwo->GetOrigin();
 
   calculator->SetInput( planeSagittalTwo , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
   MITK_INFO << "min: " << minMax.first << " max: " << minMax.second;
 
   MITK_TEST_CONDITION(minMax.first == 0 && minMax.second == 19, "Check if plane is from slice 0 to slice 19");
 
   //Slice 17
   origin[0] = 0;  // Set to 0.1 so that the intersection point is inside the bounding box
 
   mitk::PlaneGeometry::Pointer planeOnSliceSeventeen = mitk::PlaneGeometry::New();
   planeOnSliceSeventeen->InitializePlane(origin, normal);
 
   calculator->SetInput( planeOnSliceSeventeen , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
   MITK_TEST_CONDITION(minMax.first == 0 && minMax.second == 19, "Check if plane is from slice 0 to slice 19");
 
-  //Schraege flächen:
+  //Crooked planes:
   origin[0] = 0;
   origin[1] = 507;
   origin[2] = 0;
 
   normal[0] = 1;
   normal[1] = -1;
   normal[2] = 1;
 
   mitk::PlaneGeometry::Pointer planeCrookedOne = mitk::PlaneGeometry::New();
   planeCrookedOne->InitializePlane(origin, normal);
 
   calculator->SetInput( planeCrookedOne , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
   MITK_INFO << "min: " << minMax.first << " max: " << minMax.second;
 
   MITK_TEST_CONDITION(minMax.first == 0 && minMax.second == 4, "Check if plane is from slice 0 to slice 4 with inclined plane");
 
   origin[0] = 512;
   origin[1] = 0;
   origin[2] = 16;
 
   mitk::PlaneGeometry::Pointer planeCrookedTwo = mitk::PlaneGeometry::New();
   planeCrookedTwo->InitializePlane(origin, normal);
 
   calculator->SetInput( planeCrookedTwo , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
   MITK_INFO << "min: " << minMax.first << " max: " << minMax.second;
 
   MITK_TEST_CONDITION(minMax.first == 17 && minMax.second == 19, "Check if plane is from slice 17 to slice 19 with inclined plane");
 
 
   origin[0] = 511;
   origin[1] = 0;
   origin[2] = 0;
 
   normal[1] = 0;
   normal[2] = 0.04;
 
   mitk::PlaneGeometry::Pointer planeCrookedThree = mitk::PlaneGeometry::New();
   planeCrookedThree->InitializePlane(origin, normal);
 
   calculator->SetInput( planeCrookedThree , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
   MITK_INFO << "min: " << minMax.first << " max: " << minMax.second;
 
   MITK_TEST_CONDITION(minMax.first == 0 && minMax.second == 19, "Check if plane is from slice 0 to slice 19 with inclined plane");
 
 
   delete calculator;
 }
 
 static void CheckPlanesOutsideOfBoundingBox(mitk::Geometry3D::Pointer geometry3D)
 {
   //Check planes which are outside of the bounding box
 
   mitk::ClippedSurfaceBoundsCalculator* calculator = new mitk::ClippedSurfaceBoundsCalculator();
   mitk::Image::Pointer image = mitk::Image::New();
   image->SetGeometry(geometry3D);
 
   //In front of the bounding box
   mitk::Point3D origin;
   origin[0] = 511;
   origin[1] = 0;
   origin[2] = -5;
 
   mitk::Vector3D normal;
   mitk::FillVector3D(normal, 0, 0, 1);
 
   mitk::PlaneGeometry::Pointer planeInFront = mitk::PlaneGeometry::New();
   planeInFront->InitializePlane(origin, normal);
 
   calculator->SetInput( planeInFront , image);
   calculator->Update();
 
   mitk::ClippedSurfaceBoundsCalculator::OutputType minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == std::numeric_limits<int>::max(), "Check if min value hasn't been set");
   MITK_TEST_CONDITION(minMax.second == std::numeric_limits<int>::min(), "Check if max value hasn't been set");
 
   //Behind the bounding box
   origin[2] = 515;
 
   mitk::PlaneGeometry::Pointer planeBehind = mitk::PlaneGeometry::New();
   planeBehind->InitializePlane(origin, normal);
 
   calculator->SetInput( planeBehind , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == std::numeric_limits<int>::max(), "Check if min value hasn't been set");
   MITK_TEST_CONDITION(minMax.second == std::numeric_limits<int>::min(), "Check if max value hasn't been set");
 
   //Above
   origin[1] = 515;
 
   mitk::FillVector3D(normal, 0, 1, 0);
 
   mitk::PlaneGeometry::Pointer planeAbove = mitk::PlaneGeometry::New();
   planeAbove->InitializePlane(origin, normal);
 
   calculator->SetInput( planeAbove , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == std::numeric_limits<int>::max(), "Check if min value hasn't been set");
   MITK_TEST_CONDITION(minMax.second == std::numeric_limits<int>::min(), "Check if max value hasn't been set");
 
   //Below
   origin[1] = -5;
 
   mitk::PlaneGeometry::Pointer planeBelow = mitk::PlaneGeometry::New();
   planeBelow->InitializePlane(origin, normal);
 
   calculator->SetInput( planeBelow , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == std::numeric_limits<int>::max(), "Check if min value hasn't been set");
   MITK_TEST_CONDITION(minMax.second == std::numeric_limits<int>::min(), "Check if max value hasn't been set");
 
   //Left side
   origin[0] = -5;
 
 
   mitk::FillVector3D(normal, 1, 0, 0);
 
   mitk::PlaneGeometry::Pointer planeLeftSide = mitk::PlaneGeometry::New();
   planeLeftSide->InitializePlane(origin, normal);
 
   calculator->SetInput( planeLeftSide , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == std::numeric_limits<int>::max(), "Check if min value hasn't been set");
   MITK_TEST_CONDITION(minMax.second == std::numeric_limits<int>::min(), "Check if max value hasn't been set");
 
   //Right side
   origin[1] = 515;
 
   mitk::PlaneGeometry::Pointer planeRightSide = mitk::PlaneGeometry::New();
   planeRightSide->InitializePlane(origin, normal);
 
   calculator->SetInput( planeRightSide , image);
   calculator->Update();
 
   minMax = calculator->GetMinMaxSpatialDirectionZ();
 
   MITK_TEST_CONDITION(minMax.first == std::numeric_limits<int>::max(), "Check if min value hasn't been set");
   MITK_TEST_CONDITION(minMax.second == std::numeric_limits<int>::min(), "Check if max value hasn't been set");
 
   delete calculator;
 }
 
 
 int mitkClippedSurfaceBoundsCalculatorTest(int argc, char* argv[])
 {
   // always start with this!
   MITK_TEST_BEGIN("ClippedSurfaceBoundsCalculator");
 
+  /** The class mitkClippedSurfaceBoundsCalculator calculates the intersection points of a PlaneGeometry and a Geometry3D.
+  *   This unittest checks if the correct min and max values for the three spatial directions (x, y, z)
+  *   are calculated. To test this we define artifical PlaneGeometries and Geometry3Ds and test different
+  *   scenarios:
+  *
+  *   1. planes which are inside the bounding box of a 3D geometry but only on one slice
+  *   2. planes which are outside of the bounding box
+  *   3. planes which are inside the bounding box but over more than one slice
+  *
+  *   Note: Currently rotated geometries are not tested!
+  */
+
+  /********************* Define Geometry3D ***********************/
   //Define origin:
   mitk::Point3D origin;
   origin[0] = 511;
   origin[1] = 0;
   origin[2] = 0;
 
   //Define normal:
   mitk::Vector3D normal;
   mitk::FillVector3D(normal, 0, 0, 1);
 
   //Initialize PlaneGeometry:
   mitk::PlaneGeometry::Pointer planeGeometry = mitk::PlaneGeometry::New();
   planeGeometry->InitializePlane(origin, normal);
 
   //Set Bounds:
   mitk::BoundingBox::BoundsArrayType bounds = planeGeometry->GetBounds();
   bounds[0] = 0;
   bounds[1] = 512;
   bounds[2] = 0;
   bounds[3] = 512;
   bounds[4] = 0;
   bounds[5] = 1;
   planeGeometry->SetBounds(bounds);
 
   //Initialize SlicedGeometry3D:
   mitk::SlicedGeometry3D::Pointer slicedGeometry3D = mitk::SlicedGeometry3D::New();
   slicedGeometry3D->InitializeEvenlySpaced(dynamic_cast<mitk::Geometry2D*>(planeGeometry.GetPointer()), 20);
   mitk::Geometry3D::Pointer geometry3D = dynamic_cast< mitk::Geometry3D* > ( slicedGeometry3D.GetPointer() );
   geometry3D->SetImageGeometry(true);
 
+  /***************************************************************/
+
   CheckPlanesInsideBoundingBoxOnlyOnOneSlice(geometry3D);
   CheckPlanesOutsideOfBoundingBox(geometry3D);
   CheckPlanesInsideBoundingBox(geometry3D);
 
   /** ToDo:
   *  test also rotated 3D geometry!
   */
 
   MITK_TEST_END();
 }