diff --git a/Plugins/org.mitk.gui.qt.igt.app.hummelprotocolmeasurements/CMakeLists.txt b/Plugins/org.mitk.gui.qt.igt.app.hummelprotocolmeasurements/CMakeLists.txt
index 4a35b65739..74aff52792 100644
--- a/Plugins/org.mitk.gui.qt.igt.app.hummelprotocolmeasurements/CMakeLists.txt
+++ b/Plugins/org.mitk.gui.qt.igt.app.hummelprotocolmeasurements/CMakeLists.txt
@@ -1,7 +1,7 @@
-project(org_mitk_gui_qt_igtapphummelprotocolmeasurements)
+project(org_mitk_gui_qt_igt_app_hummelprotocolmeasurements)
 
 mitk_create_plugin(
   EXPORT_DIRECTIVE IGTTRACKINGSEMIAUTOMATICMEASUREMENT_EXPORT
   EXPORTED_INCLUDE_SUFFIXES src
   MODULE_DEPENDS MitkIGT MitkIGTUI MitkCameraCalibration
 )
diff --git a/Plugins/org.mitk.gui.qt.igt.app.hummelprotocolmeasurements/src/internal/QmitkIGTTrackingSemiAutomaticMeasurementView.cpp b/Plugins/org.mitk.gui.qt.igt.app.hummelprotocolmeasurements/src/internal/QmitkIGTTrackingSemiAutomaticMeasurementView.cpp
index a10fcf566e..97178bd116 100644
--- a/Plugins/org.mitk.gui.qt.igt.app.hummelprotocolmeasurements/src/internal/QmitkIGTTrackingSemiAutomaticMeasurementView.cpp
+++ b/Plugins/org.mitk.gui.qt.igt.app.hummelprotocolmeasurements/src/internal/QmitkIGTTrackingSemiAutomaticMeasurementView.cpp
@@ -1,632 +1,623 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 // Blueberry
 #include <berryISelectionService.h>
 #include <berryIWorkbenchWindow.h>
 
 // Qmitk
 #include "QmitkIGTTrackingSemiAutomaticMeasurementView.h"
 #include "QmitkStdMultiWidget.h"
 
 // Qt
 #include <QMessageBox>
 #include <qfiledialog.h>
 #include <qevent.h>
 #include <QCheckBox>
 
 // MITK
 #include <mitkNavigationToolStorageDeserializer.h>
 #include <mitkTrackingDeviceSourceConfigurator.h>
 #include <mitkLog.h>
 #include "mitkHummelProtocolEvaluation.h"
 
 // POCO
 #include <Poco/File.h>
 #include <Poco/Path.h>
 
 const std::string QmitkIGTTrackingSemiAutomaticMeasurementView::VIEW_ID = "org.mitk.views.igttrackingsemiautomaticmeasurement";
 
 QmitkIGTTrackingSemiAutomaticMeasurementView::QmitkIGTTrackingSemiAutomaticMeasurementView()
   : QmitkFunctionality()
   , m_Controls(0)
   , m_MultiWidget(nullptr)
 {
   m_NextFile = 0;
   m_FilenameVector = std::vector<std::string>();
   m_Timer = new QTimer(this);
   m_logging = false;
   m_referenceValid = true;
   m_tracking = false;
   m_EvaluationFilter = mitk::NavigationDataEvaluationFilter::New();
 }
 
 QmitkIGTTrackingSemiAutomaticMeasurementView::~QmitkIGTTrackingSemiAutomaticMeasurementView()
 {
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::CreateResults()
 {
   QString LogFileName = m_Controls->m_OutputPath->text() + "_results.log";
   mitk::LoggingBackend::Unregister();
   mitk::LoggingBackend::SetLogFile(LogFileName.toStdString().c_str());
   mitk::LoggingBackend::Register();
 
   double RMSmean = 0;
-  for (int i = 0; i < m_RMSValues.size(); i++)
+  for (std::size_t i = 0; i < m_RMSValues.size(); ++i)
   {
     MITK_INFO << "RMS at " << this->m_FilenameVector.at(i) << ": " << m_RMSValues.at(i);
     RMSmean += m_RMSValues.at(i);
   }
   RMSmean /= m_RMSValues.size();
   MITK_INFO << "RMS mean over " << m_RMSValues.size() << " values: " << RMSmean;
 
   mitk::DataNode::Pointer newNode = mitk::DataNode::New();
   newNode->SetName("Tracking Results");
   newNode->SetData(this->m_MeanPoints);
   this->GetDataStorage()->Add(newNode);
 
   std::vector<mitk::HummelProtocolEvaluation::HummelProtocolDistanceError> results5cmDistances;
   if (m_Controls->m_mediumVolume->isChecked())
     mitk::HummelProtocolEvaluation::Evaluate5cmDistances(m_MeanPoints, mitk::HummelProtocolEvaluation::medium, results5cmDistances);
   else if (m_Controls->m_smallVolume->isChecked())
     mitk::HummelProtocolEvaluation::Evaluate5cmDistances(m_MeanPoints, mitk::HummelProtocolEvaluation::small, results5cmDistances);
   else if (m_Controls->m_standardVolume->isChecked())
     mitk::HummelProtocolEvaluation::Evaluate5cmDistances(m_MeanPoints, mitk::HummelProtocolEvaluation::standard, results5cmDistances);
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::CreateQtPartControl(QWidget *parent)
 {
   // build up qt view, unless already done
   if (!m_Controls)
   {
     // create GUI widgets from the Qt Designer's .ui file
     m_Controls = new Ui::QmitkIGTTrackingSemiAutomaticMeasurementViewControls;
     m_Controls->setupUi(parent);
 
     //buttons
     connect(m_Controls->m_LoadMeasurementToolStorage, SIGNAL(clicked()), this, SLOT(OnLoadMeasurementStorage()));
     connect(m_Controls->m_LoadReferenceToolStorage, SIGNAL(clicked()), this, SLOT(OnLoadReferenceStorage()));
     connect(m_Controls->m_StartTracking, SIGNAL(clicked()), this, SLOT(OnStartTracking()));
     connect(m_Controls->m_LoadList, SIGNAL(clicked()), this, SLOT(OnMeasurementLoadFile()));
     connect(m_Controls->m_StartNextMeasurement, SIGNAL(clicked()), this, SLOT(StartNextMeasurement()));
     connect(m_Controls->m_ReapeatLastMeasurement, SIGNAL(clicked()), this, SLOT(RepeatLastMeasurement()));
     connect(m_Controls->m_SetReference, SIGNAL(clicked()), this, SLOT(OnSetReference()));
     connect(m_Controls->m_UseReferenceTrackingSystem, SIGNAL(toggled(bool)), this, SLOT(OnUseReferenceToggled(bool)));
     connect(m_Controls->m_CreateResults, SIGNAL(clicked()), this, SLOT(CreateResults()));
 
     //event filter
     qApp->installEventFilter(this);
 
     //timers
     connect(m_Timer, SIGNAL(timeout()), this, SLOT(UpdateTimer()));
   }
 
   //initialize some view
   m_Controls->m_StopTracking->setEnabled(false);
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::StdMultiWidgetAvailable(QmitkStdMultiWidget &stdMultiWidget)
 {
   m_MultiWidget = &stdMultiWidget;
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::OnUseReferenceToggled(bool state)
 {
   if (state)
   {
     m_Controls->m_ReferenceBox->setEnabled(true);
     m_Controls->m_SetReference->setEnabled(true);
   }
 
   else
   {
     m_Controls->m_ReferenceBox->setEnabled(false);
     m_Controls->m_SetReference->setEnabled(false);
   }
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::StdMultiWidgetNotAvailable()
 {
   m_MultiWidget = nullptr;
 }
 
 mitk::NavigationToolStorage::Pointer QmitkIGTTrackingSemiAutomaticMeasurementView::ReadStorage(std::string file)
 {
   mitk::NavigationToolStorage::Pointer returnValue;
 
   //initialize tool storage
   returnValue = mitk::NavigationToolStorage::New();
 
   //read tool storage from disk
   mitk::NavigationToolStorageDeserializer::Pointer myDeserializer = mitk::NavigationToolStorageDeserializer::New(GetDataStorage());
   returnValue = myDeserializer->Deserialize(file);
   if (returnValue.IsNull())
   {
     QMessageBox msgBox;
     msgBox.setText(myDeserializer->GetErrorMessage().c_str());
     msgBox.exec();
 
     returnValue = nullptr;
   }
 
   return returnValue;
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::OnSetReference()
 {
   //initialize reference
   m_ReferenceStartPositions = std::vector<mitk::Point3D>();
   m_ReferenceTrackingDeviceSource->Update();
   QString Label = "Positions At Start: ";
-  for (int i = 0; i < m_ReferenceTrackingDeviceSource->GetNumberOfOutputs(); i++)
+  for (unsigned int i = 0; i < m_ReferenceTrackingDeviceSource->GetNumberOfOutputs(); ++i)
   {
     mitk::Point3D position = m_ReferenceTrackingDeviceSource->GetOutput(i)->GetPosition();
     Label = Label + "Tool" + QString::number(i) + ":[" + QString::number(position[0]) + ":" + QString::number(position[1]) + ":" + QString::number(position[1]) + "] ";
     m_ReferenceStartPositions.push_back(position);
   }
   m_Controls->m_ReferencePosAtStart->setText(Label);
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::OnLoadMeasurementStorage()
 {
   //read in filename
   QString filename = QFileDialog::getOpenFileName(nullptr, tr("Open Toolfile"), "/", tr("All Files (*.*)"));
   if (filename.isNull()) return;
 
   m_MeasurementStorage = ReadStorage(filename.toStdString());
 
   //update label
   Poco::Path myPath = Poco::Path(filename.toStdString()); //use this to seperate filename from path
   QString toolLabel = QString("Tool Storage: ") + QString::number(m_MeasurementStorage->GetToolCount()) + " Tools from " + myPath.getFileName().c_str();
   m_Controls->m_MeasurementToolStorageLabel->setText(toolLabel);
 
   //update status widget
   m_Controls->m_ToolStatusWidget->RemoveStatusLabels();
   m_Controls->m_ToolStatusWidget->PreShowTools(m_MeasurementStorage);
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::OnLoadReferenceStorage()
 {
   //read in filename
   static QString oldFile;
   if (oldFile.isNull()) oldFile = "/";
   QString filename = QFileDialog::getOpenFileName(nullptr, tr("Open Toolfile"), oldFile, tr("All Files (*.*)"));
   if (filename.isNull()) return;
   oldFile = filename;
 
   m_ReferenceStorage = ReadStorage(filename.toStdString());
 
   //update label
   Poco::Path myPath = Poco::Path(filename.toStdString()); //use this to seperate filename from path
   QString toolLabel = QString("Tool Storage: ") + QString::number(m_ReferenceStorage->GetToolCount()) + " Tools from " + myPath.getFileName().c_str();
   m_Controls->m_ReferenceToolStorageLabel->setText(toolLabel);
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::OnStartTracking()
 {
   //check if everything is ready to start tracking
   if (m_MeasurementStorage.IsNull())
   {
     MessageBox("Error: No measurement tools loaded yet!");
     return;
   }
   else if (m_ReferenceStorage.IsNull() && m_Controls->m_UseReferenceTrackingSystem->isChecked())
   {
     MessageBox("Error: No refernce tools loaded yet!");
     return;
   }
   else if (m_MeasurementStorage->GetToolCount() == 0)
   {
     MessageBox("Error: No way to track without tools!");
     return;
   }
   else if (m_Controls->m_UseReferenceTrackingSystem->isChecked() && (m_ReferenceStorage->GetToolCount() == 0))
   {
     MessageBox("Error: No way to track without tools!");
     return;
   }
 
   //build the first IGT pipeline (MEASUREMENT)
   mitk::TrackingDeviceSourceConfigurator::Pointer myTrackingDeviceSourceFactory1 = mitk::TrackingDeviceSourceConfigurator::New(this->m_MeasurementStorage, this->m_Controls->m_MeasurementTrackingDeviceConfigurationWidget->GetTrackingDevice());
   m_MeasurementTrackingDeviceSource = myTrackingDeviceSourceFactory1->CreateTrackingDeviceSource(this->m_MeasurementToolVisualizationFilter);
   if (m_MeasurementTrackingDeviceSource.IsNull())
   {
     MessageBox(myTrackingDeviceSourceFactory1->GetErrorMessage());
     return;
   }
   //connect the tool visualization widget
-  for (int i = 0; i < m_MeasurementTrackingDeviceSource->GetNumberOfOutputs(); i++)
+  for (unsigned int i = 0; i < m_MeasurementTrackingDeviceSource->GetNumberOfOutputs(); ++i)
   {
     m_Controls->m_ToolStatusWidget->AddNavigationData(m_MeasurementTrackingDeviceSource->GetOutput(i));
     m_EvaluationFilter->SetInput(i, m_MeasurementTrackingDeviceSource->GetOutput(i));
   }
   m_Controls->m_ToolStatusWidget->ShowStatusLabels();
   m_Controls->m_ToolStatusWidget->SetShowPositions(true);
   m_Controls->m_ToolStatusWidget->SetShowQuaternions(true);
 
   //build the second IGT pipeline (REFERENCE)
   if (m_Controls->m_UseReferenceTrackingSystem->isChecked())
   {
     mitk::TrackingDeviceSourceConfigurator::Pointer myTrackingDeviceSourceFactory2 = mitk::TrackingDeviceSourceConfigurator::New(this->m_ReferenceStorage, this->m_Controls->m_ReferenceDeviceConfigurationWidget->GetTrackingDevice());
     m_ReferenceTrackingDeviceSource = myTrackingDeviceSourceFactory2->CreateTrackingDeviceSource();
     if (m_ReferenceTrackingDeviceSource.IsNull())
     {
       MessageBox(myTrackingDeviceSourceFactory2->GetErrorMessage());
       return;
     }
   }
 
   //initialize tracking
   try
   {
     m_MeasurementTrackingDeviceSource->Connect();
     m_MeasurementTrackingDeviceSource->StartTracking();
     if (m_Controls->m_UseReferenceTrackingSystem->isChecked())
     {
       m_ReferenceTrackingDeviceSource->Connect();
       m_ReferenceTrackingDeviceSource->StartTracking();
     }
   }
   catch (...)
   {
     MessageBox("Error while starting the tracking device!");
     return;
   }
 
   //set reference
   if (m_Controls->m_UseReferenceTrackingSystem->isChecked()) OnSetReference();
 
   //start timer
   m_Timer->start(1000 / (m_Controls->m_SamplingRate->value()));
 
   m_Controls->m_StartTracking->setEnabled(false);
   m_Controls->m_StartTracking->setEnabled(true);
 
   m_tracking = true;
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::OnStopTracking()
 {
   if (this->m_logging) FinishMeasurement();
   m_MeasurementTrackingDeviceSource->Disconnect();
   m_MeasurementTrackingDeviceSource->StopTracking();
   if (m_Controls->m_UseReferenceTrackingSystem->isChecked())
   {
     m_ReferenceTrackingDeviceSource->Disconnect();
     m_ReferenceTrackingDeviceSource->StopTracking();
   }
   m_Timer->stop();
   m_Controls->m_StartTracking->setEnabled(true);
   m_Controls->m_StartTracking->setEnabled(false);
   m_tracking = false;
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::OnMeasurementLoadFile()
 {
   m_FilenameVector = std::vector<std::string>();
   m_FilenameVector.clear();
   m_NextFile = 0;
 
   //read in filename
   QString filename = QFileDialog::getOpenFileName(nullptr, tr("Open Measurement Filename List"), "/", tr("All Files (*.*)"));
   if (filename.isNull()) return;
 
-  //save old locale
-  char * oldLocale;
-  oldLocale = setlocale(LC_ALL, 0);
-
   //define own locale
   std::locale C("C");
   setlocale(LC_ALL, "C");
 
   //read file
   std::ifstream file;
   file.open(filename.toStdString().c_str(), std::ios::in);
   if (file.good())
   {
     //read out file
     file.seekg(0L, std::ios::beg);  // move to begin of file
     while (!file.eof())
     {
       std::string buffer;
       std::getline(file, buffer);    // read out file line by line
       if (buffer.size() > 0) m_FilenameVector.push_back(buffer);
     }
   }
 
   //fill list at GUI
   m_Controls->m_MeasurementList->clear();
   for (unsigned int i = 0; i < m_FilenameVector.size(); i++) { new QListWidgetItem(tr(m_FilenameVector.at(i).c_str()), m_Controls->m_MeasurementList); }
 
   //update label next measurement
   std::stringstream label;
   label << "Next Measurement: " << m_FilenameVector.at(0);
   m_Controls->m_NextMeasurement->setText(label.str().c_str());
 
   //reset results files
   m_MeanPoints = mitk::PointSet::New();
   m_RMSValues = std::vector<double>();
   m_EvaluationFilter = mitk::NavigationDataEvaluationFilter::New();
   if (m_MeasurementToolVisualizationFilter.IsNotNull()) m_EvaluationFilter->SetInput(0, m_MeasurementToolVisualizationFilter->GetOutput(0));
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::UpdateTimer()
 {
   if (m_EvaluationFilter.IsNotNull() && m_logging) m_EvaluationFilter->Update();
   else m_MeasurementToolVisualizationFilter->Update();
 
   m_Controls->m_ToolStatusWidget->Refresh();
 
   //update reference
   if (m_Controls->m_UseReferenceTrackingSystem->isChecked())
   {
     m_ReferenceTrackingDeviceSource->Update();
     QString Label = "Current Positions: ";
     bool distanceThresholdExceeded = false;
-    for (int i = 0; i < m_ReferenceTrackingDeviceSource->GetNumberOfOutputs(); i++)
+    for (unsigned int i = 0; i < m_ReferenceTrackingDeviceSource->GetNumberOfOutputs(); ++i)
     {
       mitk::Point3D position = m_ReferenceTrackingDeviceSource->GetOutput(i)->GetPosition();
       Label = Label + "Tool" + QString::number(i) + ":[" + QString::number(position[0]) + ":" + QString::number(position[1]) + ":" + QString::number(position[1]) + "] ";
       if (position.EuclideanDistanceTo(m_ReferenceStartPositions.at(i)) > m_Controls->m_ReferenceThreshold->value()) distanceThresholdExceeded = true;
     }
     m_Controls->m_ReferenceCurrentPos->setText(Label);
     if (distanceThresholdExceeded)
     {
       m_Controls->m_ReferenceOK->setText("<html><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:28pt; font-weight:400; font-style:normal;\">NOT OK!</body></html>");
       m_referenceValid = false;
     }
     else
     {
       m_Controls->m_ReferenceOK->setText("<html><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:28pt; font-weight:400; font-style:normal;\">OK</body></html>");
       m_referenceValid = true;
     }
   }
 
   //update logging
   if (m_logging)
   {
     //check for missing objects
     if (m_MeasurementLoggingFilterXML.IsNull() ||
       m_MeasurementLoggingFilterCSV.IsNull()
       )
     {
       return;
     }
 
     //log/measure
     m_MeasurementLoggingFilterXML->Update();
     m_MeasurementLoggingFilterCSV->Update();
 
     if (m_Controls->m_UseReferenceTrackingSystem->isChecked() &&
       m_ReferenceLoggingFilterXML.IsNotNull() &&
       m_ReferenceLoggingFilterCSV.IsNotNull())
     {
       m_ReferenceLoggingFilterXML->Update();
       m_ReferenceLoggingFilterCSV->Update();
     }
     m_loggedFrames++;
     LogAdditionalCSVFile();
 
     //check if all frames are logged ... if yes finish the measurement
     if (m_loggedFrames > m_Controls->m_SamplesPerMeasurement->value()) { FinishMeasurement(); }
 
     //update logging label
     QString loggingLabel = "Collected Samples: " + QString::number(m_loggedFrames);
     m_Controls->m_CollectedSamples->setText(loggingLabel);
   }
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::StartNextMeasurement()
 {
   if (this->m_NextFile >= m_FilenameVector.size())
   {
     MessageBox("Last Measurement reached!");
     return;
   }
 
   m_loggedFrames = 0;
   m_logging = true;
 
   //check if directory exists, if not create one
   Poco::File myPath(std::string(m_Controls->m_OutputPath->text().toUtf8()).c_str());
   if (!myPath.exists()) myPath.createDirectory();
 
   QString LogFileName = m_Controls->m_OutputPath->text() + QString(m_FilenameVector.at(m_NextFile).c_str()) + ".log";
   mitk::LoggingBackend::Unregister();
   mitk::LoggingBackend::SetLogFile(LogFileName.toStdString().c_str());
   mitk::LoggingBackend::Register();
 
   //initialize logging filters
   m_MeasurementLoggingFilterXML = mitk::NavigationDataRecorderDeprecated::New();
   m_MeasurementLoggingFilterXML->SetRecordingMode(mitk::NavigationDataRecorderDeprecated::NormalFile);
   m_MeasurementLoggingFilterCSV = mitk::NavigationDataRecorderDeprecated::New();
   m_MeasurementLoggingFilterCSV->SetRecordingMode(mitk::NavigationDataRecorderDeprecated::NormalFile);
   m_MeasurementLoggingFilterXML->SetOutputFormat(mitk::NavigationDataRecorderDeprecated::xml);
   m_MeasurementLoggingFilterCSV->SetOutputFormat(mitk::NavigationDataRecorderDeprecated::csv);
   QString MeasurementFilenameXML = m_Controls->m_OutputPath->text() + QString(m_FilenameVector.at(m_NextFile).c_str()) + ".xml";
   QString MeasurementFilenameCSV = m_Controls->m_OutputPath->text() + QString(m_FilenameVector.at(m_NextFile).c_str()) + ".csv";
   m_MeasurementLoggingFilterXML->SetFileName(MeasurementFilenameXML.toStdString());
   m_MeasurementLoggingFilterCSV->SetFileName(MeasurementFilenameCSV.toStdString());
   m_MeasurementLoggingFilterXML->SetRecordCountLimit(m_Controls->m_SamplesPerMeasurement->value());
   m_MeasurementLoggingFilterCSV->SetRecordCountLimit(m_Controls->m_SamplesPerMeasurement->value());
 
   if (m_Controls->m_UseReferenceTrackingSystem->isChecked())
   {
     m_ReferenceLoggingFilterXML = mitk::NavigationDataRecorderDeprecated::New();
     m_ReferenceLoggingFilterXML->SetRecordingMode(mitk::NavigationDataRecorderDeprecated::NormalFile);
     m_ReferenceLoggingFilterCSV = mitk::NavigationDataRecorderDeprecated::New();
     m_ReferenceLoggingFilterCSV->SetRecordingMode(mitk::NavigationDataRecorderDeprecated::NormalFile);
     m_ReferenceLoggingFilterXML->SetOutputFormat(mitk::NavigationDataRecorderDeprecated::xml);
     m_ReferenceLoggingFilterCSV->SetOutputFormat(mitk::NavigationDataRecorderDeprecated::csv);
     QString ReferenceFilenameXML = m_Controls->m_OutputPath->text() + "Reference_" + QString(m_FilenameVector.at(m_NextFile).c_str()) + ".xml";
     QString ReferenceFilenameCSV = m_Controls->m_OutputPath->text() + "Reference_" + QString(m_FilenameVector.at(m_NextFile).c_str()) + ".csv";
     m_ReferenceLoggingFilterXML->SetFileName(ReferenceFilenameXML.toStdString());
     m_ReferenceLoggingFilterCSV->SetFileName(ReferenceFilenameCSV.toStdString());
     m_ReferenceLoggingFilterXML->SetRecordCountLimit(m_Controls->m_SamplesPerMeasurement->value());
     m_ReferenceLoggingFilterCSV->SetRecordCountLimit(m_Controls->m_SamplesPerMeasurement->value());
   }
 
   //start additional csv logging
   StartLoggingAdditionalCSVFile(m_FilenameVector.at(m_NextFile));
 
   //connect filter
-  for (int i = 0; i < m_MeasurementToolVisualizationFilter->GetNumberOfOutputs(); i++)
+  for (unsigned int i = 0; i < m_MeasurementToolVisualizationFilter->GetNumberOfOutputs(); ++i)
   {
     m_MeasurementLoggingFilterXML->AddNavigationData(m_MeasurementToolVisualizationFilter->GetOutput(i));
     m_MeasurementLoggingFilterCSV->AddNavigationData(m_MeasurementToolVisualizationFilter->GetOutput(i));
   }
-  if (m_Controls->m_UseReferenceTrackingSystem->isChecked()) for (int i = 0; i < m_ReferenceTrackingDeviceSource->GetNumberOfOutputs(); i++)
+  if (m_Controls->m_UseReferenceTrackingSystem->isChecked()) for (unsigned int i = 0; i < m_ReferenceTrackingDeviceSource->GetNumberOfOutputs(); ++i)
   {
     m_ReferenceLoggingFilterXML->AddNavigationData(m_ReferenceTrackingDeviceSource->GetOutput(i));
     m_ReferenceLoggingFilterCSV->AddNavigationData(m_ReferenceTrackingDeviceSource->GetOutput(i));
   }
 
   //start filter
   m_MeasurementLoggingFilterXML->StartRecording();
   m_MeasurementLoggingFilterCSV->StartRecording();
   if (m_Controls->m_UseReferenceTrackingSystem->isChecked())
   {
     m_ReferenceLoggingFilterXML->StartRecording();
     m_ReferenceLoggingFilterCSV->StartRecording();
   }
 
   //disable all buttons
   DisableAllButtons();
 
   //update label next measurement
   std::stringstream label;
-  if ((m_NextFile + 1) >= m_FilenameVector.size()) label << "Next Measurement: <none>";
+  if ((m_NextFile + 1) >= static_cast<int>(m_FilenameVector.size())) label << "Next Measurement: <none>";
   else label << "Next Measurement: " << m_FilenameVector.at(m_NextFile + 1);
   m_Controls->m_NextMeasurement->setText(label.str().c_str());
 
   //update label last measurement
   std::stringstream label2;
   label2 << "Last Measurement: " << m_FilenameVector.at(m_NextFile);
   m_Controls->m_LastMeasurement->setText(label2.str().c_str());
 
   m_NextFile++;
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::RepeatLastMeasurement()
 {
   m_NextFile--;
   StartNextMeasurement();
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::MessageBox(std::string s)
 {
   QMessageBox msgBox;
   msgBox.setText(s.c_str());
   msgBox.exec();
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::DisableAllButtons()
 {
   m_Controls->m_LoadList->setEnabled(false);
   m_Controls->m_StartNextMeasurement->setEnabled(false);
   m_Controls->m_ReapeatLastMeasurement->setEnabled(false);
   m_Controls->m_SamplingRate->setEnabled(false);
   m_Controls->m_SamplesPerMeasurement->setEnabled(false);
   m_Controls->m_ReferenceThreshold->setEnabled(false);
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::EnableAllButtons()
 {
   m_Controls->m_LoadList->setEnabled(true);
   m_Controls->m_StartNextMeasurement->setEnabled(true);
   m_Controls->m_ReapeatLastMeasurement->setEnabled(true);
   m_Controls->m_SamplingRate->setEnabled(true);
   m_Controls->m_SamplesPerMeasurement->setEnabled(true);
   m_Controls->m_ReferenceThreshold->setEnabled(true);
 }
 
 void QmitkIGTTrackingSemiAutomaticMeasurementView::FinishMeasurement()
 {
   m_logging = false;
 
   m_MeasurementLoggingFilterXML->StopRecording();
   m_MeasurementLoggingFilterCSV->StopRecording();
   if (m_Controls->m_UseReferenceTrackingSystem->isChecked())
   {
     m_ReferenceLoggingFilterXML->StopRecording();
     m_ReferenceLoggingFilterCSV->StopRecording();
   }
   StopLoggingAdditionalCSVFile();
 
   int id = m_NextFile - 1;
   mitk::Point3D positionMean = m_EvaluationFilter->GetPositionMean(0);
   MITK_INFO << "Evaluated " << m_EvaluationFilter->GetNumberOfAnalysedNavigationData(0) << " samples.";
   double rms = m_EvaluationFilter->GetPositionErrorRMS(0);
   MITK_INFO << "RMS: " << rms;
   MITK_INFO << "Position Mean: " << positionMean;
   m_MeanPoints->SetPoint(id, positionMean);
-  if (m_RMSValues.size() <= id) m_RMSValues.push_back(rms);
+  if (static_cast<int>(m_RMSValues.size()) <= id) m_RMSValues.push_back(rms);
   else m_RMSValues[id] = rms;
 
   m_EvaluationFilter->ResetStatistic();
 
   EnableAllButtons();
 }
 
 void  QmitkIGTTrackingSemiAutomaticMeasurementView::StartLoggingAdditionalCSVFile(std::string filePostfix)
 {
   //write logfile header
   QString header = "Nr;MITK_Time;Valid_Reference;";
   QString tool = QString("MeasureTool_") + QString(m_MeasurementTrackingDeviceSource->GetOutput(0)->GetName());
   header = header + tool + "[x];" + tool + "[y];" + tool + "[z];" + tool + "[qx];" + tool + "[qy];" + tool + "[qz];" + tool + "[qr]\n";
 
   //open logfile and write header
   m_logFileCSV.open(std::string(m_Controls->m_OutputPath->text().toUtf8()).append("/LogFileCombined").append(filePostfix.c_str()).append(".csv").c_str(), std::ios::out);
   m_logFileCSV << header.toStdString().c_str();
 }
 
 void  QmitkIGTTrackingSemiAutomaticMeasurementView::LogAdditionalCSVFile()
 {
   mitk::Point3D pos = m_MeasurementTrackingDeviceSource->GetOutput(0)->GetPosition();
   mitk::Quaternion rot = m_MeasurementTrackingDeviceSource->GetOutput(0)->GetOrientation();
   std::string valid = "";
   if (m_referenceValid) valid = "true";
   else valid = "false";
   std::stringstream timestamp;
   timestamp << m_MeasurementTrackingDeviceSource->GetOutput(0)->GetTimeStamp();
   QString dataSet = QString::number(m_loggedFrames) + ";" + QString(timestamp.str().c_str()) + ";" + QString(valid.c_str()) + ";" + QString::number(pos[0]) + ";" + QString::number(pos[1]) + ";" + QString::number(pos[2]) + ";" + QString::number(rot.x()) + ";" + QString::number(rot.y()) + ";" + QString::number(rot.z()) + ";" + QString::number(rot.r()) + "\n";
   m_logFileCSV << dataSet.toStdString();
 }
 
 void  QmitkIGTTrackingSemiAutomaticMeasurementView::StopLoggingAdditionalCSVFile()
 {
   m_logFileCSV.close();
 }
 
-bool QmitkIGTTrackingSemiAutomaticMeasurementView::eventFilter(QObject *obj, QEvent *ev)
+bool QmitkIGTTrackingSemiAutomaticMeasurementView::eventFilter(QObject *, QEvent *ev)
 {
   if (ev->type() == QEvent::KeyPress)
   {
     QKeyEvent *k = (QKeyEvent *)ev;
-    bool up = false;
-    bool down = false;
-    if (k->key() == 16777238) up = true; //page up
-    else if (k->key() == 16777239) down = true; //page down
+    bool down = k->key() == 16777239;
 
     if (down && m_tracking && !m_logging)
-    {
       StartNextMeasurement();
-    }
   }
 
   return false;
 }