Class to contain all the ITK/MITK logic for the Affine Transformation Plugin, to separate from AffineTransformationView to make unit testing easier. More...

Inheritance diagram for niftk::AffineTransformer:

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Collaboration diagram for niftk::AffineTransformer:

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Public Member Functions
	mitkClassMacroItkParent (AffineTransformer, itk::Object) static Pointer New()

virtual bool	GetRotateAroundCenter ()
	Get / Set the "RotateAroundCenter" flag. More...

virtual void	SetRotateAroundCenter (bool _arg)

void	SetDataStorage (mitk::DataStorage::Pointer dataStorage)
	Sets the mitk::DataStorage on this object. More...

mitk::DataStorage::Pointer	GetDataStorage () const
	Gets the DataStorage pointer from this object. More...

AffineTransformParametersDataNodeProperty::Pointer	GetCurrentTransformParameters () const
	Get the transform parameters from the current data node. More...

vtkSmartPointer< vtkMatrix4x4 >	GetTransformMatrixFromNode (std::string which) const
	Get a transform matrix from the current data node. More...

vtkSmartPointer< vtkMatrix4x4 >	GetCurrentTransformMatrix () const
	Computes and returns the transformation matrix based on the current set of parameters. More...

void	ResetTransform ()
	Reset the transform to initial state. More...

void	OnNodeChanged (mitk::DataNode::Pointer node)
	Called when a node changed. More...

void	OnParametersChanged (AffineTransformParametersDataNodeProperty::Pointer paramsProperty)
	Slot for all changes to transformation parameters. More...

void	OnSaveTransform (std::string filename)
	Slot for saving transform to disk. More...

void	OnLoadTransform (std::string filename)
	Slot for loading transform from disk. More...

void	OnApplyTransform ()
	Slot for updating the direction cosines with the current transformation. More...

void	OnResampleTransform ()
	Slot for resampling the current image. More...

void	InitialiseTransformProperty (std::string name, mitk::DataNode::Pointer node)

void	InitialiseNodeProperties (mitk::DataNode::Pointer node)

void	UpdateNodeProperties (const vtkSmartPointer< vtkMatrix4x4 > displayedTransformFromParameters, const vtkSmartPointer< vtkMatrix4x4 > incrementalTransformToBeComposed, mitk::DataNode::Pointer)

void	UpdateTransformProperty (std::string name, vtkSmartPointer< vtkMatrix4x4 > transform, mitk::DataNode::Pointer node)

void	ApplyTransformToNode (const vtkSmartPointer< vtkMatrix4x4 > transformFromFile, mitk::DataNode::Pointer node)

void	ApplyResampleToCurrentNode ()
	Applies a re-sampling to the current node. More...

Static Public Attributes
static const std::string	VIEW_ID = "uk.ac.ucl.cmic.affinetransformview"
	Simply stores the view name = "uk.ac.ucl.cmic.affinetransformview". More...

static const std::string	INITIAL_TRANSFORM_KEY = "niftk.initaltransform"
	See class introduction. More...

static const std::string	INCREMENTAL_TRANSFORM_KEY = "niftk.incrementaltransform"
	See class introduction. More...

static const std::string	PRELOADED_TRANSFORM_KEY = "niftk.preloadedtransform"
	See class introduction. More...

static const std::string	DISPLAYED_TRANSFORM_KEY = "niftk.displayedtransform"
	See class introduction. More...

static const std::string	DISPLAYED_PARAMETERS_KEY = "niftk.displayedtransformparameters"
	See class introduction. More...

Protected Member Functions
	AffineTransformer ()

virtual	~AffineTransformer ()

	AffineTransformer (const AffineTransformer &)

AffineTransformer &	operator= (const AffineTransformer &)

virtual vtkSmartPointer < vtkMatrix4x4 >	ComputeTransformFromParameters (void) const
	Computes a new linear transform (as 4x4 transform matrix) from the parameters set through the UI. More...

void	UpdateTransformationGeometry ()
	Updates the transform on the current node, and it's children. More...

Detailed Description

Class to contain all the ITK/MITK logic for the Affine Transformation Plugin, to separate from AffineTransformationView to make unit testing easier.

This class stores several AffineTransformDataNodeProperty on each data node:

1. The "Initial" transformation     = The transformation that was on the object, before this view added anything.
                                      So, if you load an image from file, this transformation is a copy of the geometry implied by the image header.

2. The "Incremental" transformation = Firstly, the dataNode->GetData()->GetGeometry() can only be composed with.
                                      So, we always have to calculate, for any change, the delta to be composed onto the existing transformation.

3. The "Pre-Loaded" transformation  = A transformation loaded from file.
                                      Loading a transformation from file also resets the GUI parameters.
                                      So, if you then add a rotation of 10 degrees about X axis, it is performed AFTER the transformation loaded from file.

4. The "Displayed" transformation   = The transformation that matches the GUI display.
                                      So, if you then add a rotation of 10 degrees about X axis, this transformation is just that.

and additionally a single AffineTransformParametersDataNodeProperty:

1. The "Displayed" parameters to match the "Displayed" transformation above.

At no point are parameters derived or extracted from the affine transformation matrix, as this is ambiguous and prone to numerical instability.

Constructor & Destructor Documentation

niftk::AffineTransformer::AffineTransformer ( )

protected

niftk::AffineTransformer::~AffineTransformer ( )

protectedvirtual

niftk::AffineTransformer::AffineTransformer ( const AffineTransformer & )

protected

Member Function Documentation

void niftk::AffineTransformer::ApplyResampleToCurrentNode ( )

Applies a re-sampling to the current node.

void niftk::AffineTransformer::ApplyTransformToNode	(	const vtkSmartPointer< vtkMatrix4x4 >	transformFromFile,
		mitk::DataNode::Pointer	node
	)

The transform loaded from file is applied to the current node, and all its children, and it resets the GUI parameters to Identity, and hence the DISPLAY_TRANSFORM and DISPLAY_PARAMETERS to Identity.

vtkSmartPointer< vtkMatrix4x4 > niftk::AffineTransformer::ComputeTransformFromParameters ( void ) const

protectedvirtual

Computes a new linear transform (as 4x4 transform matrix) from the parameters set through the UI.

vtkSmartPointer< vtkMatrix4x4 > niftk::AffineTransformer::GetCurrentTransformMatrix ( ) const

Computes and returns the transformation matrix based on the current set of parameters.

AffineTransformParametersDataNodeProperty::Pointer niftk::AffineTransformer::GetCurrentTransformParameters ( ) const

Get the transform parameters from the current data node.

mitk::DataStorage::Pointer niftk::AffineTransformer::GetDataStorage ( ) const

Gets the DataStorage pointer from this object.

virtual bool niftk::AffineTransformer::GetRotateAroundCenter ( )

virtual

Get / Set the "RotateAroundCenter" flag.

vtkSmartPointer< vtkMatrix4x4 > niftk::AffineTransformer::GetTransformMatrixFromNode ( std::string which ) const

Get a transform matrix from the current data node.

void niftk::AffineTransformer::InitialiseNodeProperties ( mitk::DataNode::Pointer node )

Called by OnSelectionChanged to setup a node with default transformation properties, if it doesn't already have them.

void niftk::AffineTransformer::InitialiseTransformProperty	(	std::string	name,
		mitk::DataNode::Pointer	node
	)

Called by _InitialiseNodeProperties to initialise (to Identity) a specified transform property on a node.

niftk::AffineTransformer::mitkClassMacroItkParent	(	AffineTransformer	,
		itk::Object
	)

void niftk::AffineTransformer::OnApplyTransform ( )

Slot for updating the direction cosines with the current transformation.

void niftk::AffineTransformer::OnLoadTransform ( std::string filename )

Slot for loading transform from disk.

void niftk::AffineTransformer::OnNodeChanged ( mitk::DataNode::Pointer node )

Called when a node changed.

void niftk::AffineTransformer::OnParametersChanged ( AffineTransformParametersDataNodeProperty::Pointer paramsProperty )

Slot for all changes to transformation parameters.

void niftk::AffineTransformer::OnResampleTransform ( )

Slot for resampling the current image.

void niftk::AffineTransformer::OnSaveTransform ( std::string filename )

Slot for saving transform to disk.

AffineTransformer& niftk::AffineTransformer::operator= ( const AffineTransformer & )

protected

void niftk::AffineTransformer::ResetTransform ( )

Reset the transform to initial state.

void niftk::AffineTransformer::SetDataStorage ( mitk::DataStorage::Pointer dataStorage )

Sets the mitk::DataStorage on this object.

virtual void niftk::AffineTransformer::SetRotateAroundCenter ( bool _arg )

virtual

void niftk::AffineTransformer::UpdateNodeProperties	(	const vtkSmartPointer< vtkMatrix4x4 >	displayedTransformFromParameters,
		const vtkSmartPointer< vtkMatrix4x4 >	incrementalTransformToBeComposed,
		mitk::DataNode::Pointer	node
	)

Called by _UpdateTransformationGeometry to set new transformations in the right properties of the node.

void niftk::AffineTransformer::UpdateTransformationGeometry ( )

protected

Updates the transform on the current node, and it's children.

void niftk::AffineTransformer::UpdateTransformProperty	(	std::string	name,
		vtkSmartPointer< vtkMatrix4x4 >	transform,
		mitk::DataNode::Pointer	node
	)

Called by _UpdateNodeProperties to update a transform property on a given node.

Member Data Documentation

const std::string niftk::AffineTransformer::DISPLAYED_PARAMETERS_KEY = "niftk.displayedtransformparameters"

static

See class introduction.

const std::string niftk::AffineTransformer::DISPLAYED_TRANSFORM_KEY = "niftk.displayedtransform"

static

See class introduction.

const std::string niftk::AffineTransformer::INCREMENTAL_TRANSFORM_KEY = "niftk.incrementaltransform"

static

See class introduction.

const std::string niftk::AffineTransformer::INITIAL_TRANSFORM_KEY = "niftk.initaltransform"

static

See class introduction.

const std::string niftk::AffineTransformer::PRELOADED_TRANSFORM_KEY = "niftk.preloadedtransform"

static

See class introduction.

const std::string niftk::AffineTransformer::VIEW_ID = "uk.ac.ucl.cmic.affinetransformview"

static

Simply stores the view name = "uk.ac.ucl.cmic.affinetransformview".

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Attributes

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation