This class offers methods to read objects of the class NavigationTool from the harddisc. The tools have to be saved in a special format by the class NavigationToolWriter to be loadable. More...

#include <mitkNavigationToolReader.h>

Public Types
typedef NavigationToolReader	Self
typedef itk::Object	Superclass
typedef itk::SmartPointer< Self >	Pointer
typedef itk::SmartPointer < const Self >	ConstPointer
Public Member Functions
virtual const char *	GetClassName () const
mitk::NavigationTool::Pointer	DoRead (std::string filename)
	This method reads a navigation tool from a file.
virtual std::string	GetErrorMessage ()
Static Public Member Functions
static Pointer	New (mitk::DataStorage::Pointer _arg)
Protected Member Functions
	NavigationToolReader (mitk::DataStorage::Pointer dataStorage)
	~NavigationToolReader ()
mitk::NavigationTool::Pointer	ConvertDataNodeToNavigationTool (mitk::DataNode::Pointer node, std::string toolPath)
std::string	GetFileWithoutPath (std::string FileWithPath)
Protected Attributes
std::string	m_ErrorMessage
mitk::DataStorage::Pointer	m_DataStorage
Friends
class	mitk::NavigationToolStorageDeserializer

Detailed Description

This class offers methods to read objects of the class NavigationTool from the harddisc. The tools have to be saved in a special format by the class NavigationToolWriter to be loadable.

Documentation

Definition at line 39 of file mitkNavigationToolReader.h.

Member Typedef Documentation

typedef itk::SmartPointer<const Self> mitk::NavigationToolReader::ConstPointer

Definition at line 43 of file mitkNavigationToolReader.h.

typedef itk::SmartPointer<Self> mitk::NavigationToolReader::Pointer

Definition at line 43 of file mitkNavigationToolReader.h.

typedef NavigationToolReader mitk::NavigationToolReader::Self

Definition at line 43 of file mitkNavigationToolReader.h.

typedef itk::Object mitk::NavigationToolReader::Superclass

Definition at line 43 of file mitkNavigationToolReader.h.

Constructor & Destructor Documentation

mitk::NavigationToolReader::NavigationToolReader ( mitk::DataStorage::Pointer dataStorage ) [protected]

Definition at line 30 of file mitkNavigationToolReader.cpp.

References m_DataStorage.

  {
  m_DataStorage = dataStorage;
  }

mitk::NavigationToolReader::~NavigationToolReader ( ) [protected]

Definition at line 35 of file mitkNavigationToolReader.cpp.

  {

  }

Member Function Documentation

mitk::NavigationTool::Pointer mitk::NavigationToolReader::ConvertDataNodeToNavigationTool	(	mitk::DataNode::Pointer	node,
		std::string	toolPath
	)		`[protected]`

Definition at line 74 of file mitkNavigationToolReader.cpp.

References mitk::DataNode::New(), and mitk::NavigationTool::New().

  {
  mitk::NavigationTool::Pointer returnValue = mitk::NavigationTool::New();
  
  //DateTreeNode with Name and Surface
  mitk::DataNode::Pointer newNode = mitk::DataNode::New();
  newNode->SetName(node->GetName());
  newNode->SetData(node->GetData());
  m_DataStorage->Add(newNode);
  returnValue->SetDataNode(newNode);

  //Identifier
  std::string identifier;
  node->GetStringProperty("identifier",identifier);
  returnValue->SetIdentifier(identifier);
  
  //Serial Number
  std::string serial;
  node->GetStringProperty("serial number",serial);
  returnValue->SetSerialNumber(serial);

  //Tracking Device
  int device_type;
  node->GetIntProperty("tracking device type",device_type);
  returnValue->SetTrackingDeviceType(static_cast<mitk::TrackingDeviceType>(device_type));

  //Tool Type
  int type;
  node->GetIntProperty("tracking tool type",type);
  returnValue->SetType(static_cast<mitk::NavigationTool::NavigationToolType>(type));

  //Calibration File Name
  std::string calibration_filename;
  node->GetStringProperty("toolfileName",calibration_filename);
  std::string calibration_filename_with_path = toolPath + Poco::Path::separator() + calibration_filename;
  returnValue->SetCalibrationFile(calibration_filename_with_path);
  
  return returnValue;
  }

mitk::NavigationTool::Pointer mitk::NavigationToolReader::DoRead ( std::string filename )

This method reads a navigation tool from a file.

Parameters:

filename The filename where the tool is stored, "C:\temp\myTool.igtTool" for example.

Returns:: Returns a pointer to the tool which was read. Returns NULL, if something went wrong and no tool was read. In this case you may also want the error message which is availiable from the method GetErrorMessage().

Definition at line 40 of file mitkNavigationToolReader.cpp.

References mitk::StandardFileLocations::GetInstance(), mitk::StandardFileLocations::GetOptionDirectory(), and mitk::SceneIO::New().

  {
  //decompress all files into a temporary directory
  std::ifstream file( filename.c_str(), std::ios::binary );
  if (!file.good())
    {
    m_ErrorMessage = "Cannot open '" + filename + "' for reading";
    return NULL;
    }

  std::string tempDirectory = mitk::StandardFileLocations::GetInstance()->GetOptionDirectory() + "\\" +GetFileWithoutPath(filename);
  Poco::Zip::Decompress unzipper( file, Poco::Path( tempDirectory ) );
  unzipper.decompressAllFiles();
  
  //use SceneSerialization to load the DataStorage
  mitk::SceneIO::Pointer mySceneIO = mitk::SceneIO::New();
  mitk::DataStorage::Pointer loadedStorage = mySceneIO->LoadScene(tempDirectory + Poco::Path::separator() + GetFileWithoutPath(filename) + ".storage");

  if (loadedStorage->GetAll()->size()==0 || loadedStorage.IsNull())
    {
    m_ErrorMessage = "Invalid file: cannot parse tool data.";
    return NULL;
    }
  
  //convert the DataStorage back to a NavigationTool-Object
  mitk::DataNode::Pointer myNode = loadedStorage->GetAll()->ElementAt(0);
  mitk::NavigationTool::Pointer returnValue = ConvertDataNodeToNavigationTool(myNode, tempDirectory);
  
  //delete the data-storage file which is not needed any more. The toolfile must be left in the temporary directory becauses it is linked in the datatreenode of the tool
  std::remove((std::string(tempDirectory + Poco::Path::separator() + GetFileWithoutPath(filename) + ".storage")).c_str());

  return returnValue;
  }

virtual const char* mitk::NavigationToolReader::GetClassName ( ) const [virtual]

virtual std::string mitk::NavigationToolReader::GetErrorMessage ( ) [virtual]

std::string mitk::NavigationToolReader::GetFileWithoutPath ( std::string FileWithPath ) [protected]

Definition at line 114 of file mitkNavigationToolReader.cpp.

  {
  std::string returnValue = "";
  returnValue = FileWithPath.substr(FileWithPath.rfind("/")+1, FileWithPath.length());
  //dirty hack: Windows path seperators
  if (returnValue.size() == FileWithPath.size()) returnValue = FileWithPath.substr(FileWithPath.rfind("\\")+1, FileWithPath.length());
  return returnValue;
  }

static Pointer mitk::NavigationToolReader::New ( mitk::DataStorage::Pointer _arg ) [inline, static]

Definition at line 44 of file mitkNavigationToolReader.h.

Referenced by mitk::NavigationToolStorageDeserializer::Deserialize(), and QmitkNavigationToolManagementWidget::OnLoadSingleTool().