#include <itkNormalQuadEdgeMeshFilter.h>

Inheritance diagram for itk::NormalQuadEdgeMeshFilter< TInputMesh, TOutputMesh >:

Collaboration diagram for itk::NormalQuadEdgeMeshFilter< TInputMesh, TOutputMesh >:

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef InputMeshType::Pointer	InputMeshPointer
typedef TInputMesh	InputMeshType
typedef InputMeshType::PointIdentifier	InputPointIdentifier
typedef InputMeshType::PointType	InputPointType
typedef InputMeshType::QEType	InputQEType
typedef InputMeshType::VectorType	InputVectorType
typedef OutputMeshType::CellAutoPointer	OutputCellAutoPointer
typedef OutputMeshType::CellDataContainer	OutputCellDataContainer
typedef OutputMeshType::CellIdentifier	OutputCellIdentifier
typedef OutputMeshType::CellsContainerConstIterator	OutputCellsContainerConstIterator
typedef OutputMeshType::CellsContainerConstIterator	OutputCellsContainerPointer
typedef OutputMeshType::CellType	OutputCellType
typedef OutputFaceNormalType::ValueType	OutputFaceNormalComponentType
typedef OutputMeshTraits::CellPixelType	OutputFaceNormalType
typedef OutputMeshType::Pointer	OutputMeshPointer
typedef OutputMeshType::MeshTraits	OutputMeshTraits
typedef TOutputMesh	OutputMeshType
typedef OutputMeshType::PointDataContainer	OutputPointDataContainer
typedef OutputMeshType::PointIdentifier	OutputPointIdentifier
typedef OutputMeshType::PointIdIterator	OutputPointIdIterator
typedef OutputMeshType::PointsContainerIterator	OutputPointsContainerIterator
typedef OutputMeshType::PointsContainerPointer	OutputPointsContainerPointer
typedef OutputMeshType::PointType	OutputPointType
typedef OutputPolygonType::SelfAutoPointer	OutputPolygonAutoPointer
typedef QuadEdgeMeshPolygonCell < OutputCellType >	OutputPolygonType
typedef OutputMeshType::QEType	OutputQEType
typedef OutputPointType::VectorType	OutputVectorType
typedef OutputVertexNormalType::ValueType	OutputVertexNormalComponentType
typedef OutputMeshTraits::PixelType	OutputVertexNormalType
typedef SmartPointer< Self >	Pointer
typedef NormalQuadEdgeMeshFilter	Self
typedef QuadEdgeMeshToQuadEdgeMeshFilter < TInputMesh, TOutputMesh >	Superclass
typedef TriangleHelper < OutputPointType >	TriangleType
enum	WeightType { GOURAUD = 0, THURMER, AREA }
Public Types inherited from itk::QuadEdgeMeshToQuadEdgeMeshFilter< TInputMesh, TOutputMesh >
typedef InputMeshType::CellDataContainer	InputCellDataContainer
typedef InputMeshType::CellsContainerConstIterator	InputCellsContainerConstIterator
typedef InputMeshType::CellsContainerConstPointer	InputCellsContainerConstPointer
typedef InputMeshType::CellTraits	InputCellTraits
typedef InputMeshType::CoordRepType	InputCoordRepType
typedef InputMeshType::EdgeCellType	InputEdgeCellType
typedef InputMeshType::ConstPointer	InputMeshConstPointer
typedef InputMeshType::PointDataContainer	InputPointDataContainer
typedef InputPointDataContainer::ConstPointer	InputPointDataContainerConstPointer
typedef InputMeshType::PointIdList	InputPointIdList
typedef InputMeshType::PointsContainerConstIterator	InputPointsContainerConstIterator
typedef InputMeshType::PointsContainerConstPointer	InputPointsContainerConstPointer
typedef InputCellTraits::PointIdInternalIterator	InputPointsIdInternalIterator
typedef InputMeshType::PolygonCellType	InputPolygonCellType
typedef InputQEPrimal::IteratorGeom	InputQEIterator
typedef InputMeshType::QEPrimal	InputQEPrimal
typedef OutputMeshType::CoordRepType	OutputCoordRepType
typedef OutputMeshType::ConstPointer	OutputMeshConstPointer
typedef OutputMeshType::PointsContainerConstPointer	OutputPointsContainerConstPointer
typedef OutputQEPrimal::IteratorGeom	OutputQEIterator
typedef OutputMeshType::QEPrimal	OutputQEPrimal
Public Types inherited from itk::MeshToMeshFilter< TInputMesh, TOutputMesh >
Public Types inherited from itk::MeshSource< TOutputMesh >
typedef Superclass::DataObjectIdentifierType	DataObjectIdentifierType
typedef DataObject::Pointer	DataObjectPointer
typedef ProcessObject::DataObjectPointerArraySizeType	DataObjectPointerArraySizeType
Public Types inherited from itk::ProcessObject
typedef std::vector < DataObjectPointer >	DataObjectPointerArray
typedef std::vector < DataObjectIdentifierType >	NameArray
Public Types inherited from itk::Object
Public Types inherited from itk::LightObject

Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual const char *	GetNameOfClass () const
virtual WeightType	GetWeight () const
virtual void	SetWeight (WeightType _arg)

Static Public Member Functions
static Pointer	New ()

Protected Member Functions
void	ComputeAllFaceNormals ()
void	ComputeAllVertexNormals ()
OutputFaceNormalType	ComputeFaceNormal (OutputPolygonType *iPoly)
OutputVertexNormalType	ComputeVertexNormal (const OutputPointIdentifier &iId)
void	GenerateData ()
	NormalQuadEdgeMeshFilter ()
void	PrintSelf (std::ostream &os, Indent indent) const
OutputVertexNormalComponentType	Weight (const OutputPointIdentifier &iPId, const OutputCellIdentifier &iCId)
	~NormalQuadEdgeMeshFilter ()
Protected Member Functions inherited from itk::QuadEdgeMeshToQuadEdgeMeshFilter< TInputMesh, TOutputMesh >
virtual void	CopyInputMeshToOutputMesh ()
virtual void	CopyInputMeshToOutputMeshCellData ()
virtual void	CopyInputMeshToOutputMeshCells ()
virtual void	CopyInputMeshToOutputMeshEdgeCells ()
virtual void	CopyInputMeshToOutputMeshFieldData ()
virtual void	CopyInputMeshToOutputMeshGeometry ()
virtual void	CopyInputMeshToOutputMeshPointData ()
virtual void	CopyInputMeshToOutputMeshPoints ()
virtual void	CopyMeshToMesh (const TInputMesh in, TOutputMesh out)
	QuadEdgeMeshToQuadEdgeMeshFilter ()
virtual	~QuadEdgeMeshToQuadEdgeMeshFilter ()
Protected Member Functions inherited from itk::MeshToMeshFilter< TInputMesh, TOutputMesh >
void	CopyInputMeshToOutputMeshCellLinks ()
	MeshToMeshFilter ()
	~MeshToMeshFilter ()
Protected Member Functions inherited from itk::MeshSource< TOutputMesh >
void	GenerateInputRequestedRegion ()
	MeshSource ()
virtual	~MeshSource ()
Protected Member Functions inherited from itk::ProcessObject
virtual void	AddInput (DataObject *input)
virtual void	AddOutput (DataObject *output)
bool	AddRequiredInputName (const DataObjectIdentifierType &)
virtual void	CacheInputReleaseDataFlags ()
virtual void	GenerateOutputInformation ()
virtual void	GenerateOutputRequestedRegion (DataObject *output)
virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredInputs ()
virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredOutputs ()
bool	IsIndexedName (const DataObjectIdentifierType &) const
bool	IsRequiredInputName (const DataObjectIdentifierType &) const
	itkLegacyMacro (virtual void RemoveInput(DataObject *input))
	itkLegacyMacro (virtual void RemoveOutput(DataObject *output))
	itkLegacyMacro (void SetNumberOfInputs(DataObjectPointerArraySizeType num))
	itkLegacyMacro (void SetNumberOfOutputs(DataObjectPointerArraySizeType num))
DataObjectPointerArraySizeType	MakeIndexFromName (const DataObjectIdentifierType &) const
DataObjectIdentifierType	MakeNameFromIndex (DataObjectPointerArraySizeType) const
	ProcessObject ()
virtual void	PropagateResetPipeline ()
virtual void	ReleaseInputs ()
virtual void	RemoveInput (const DataObjectIdentifierType &key)
virtual void	RemoveInput (DataObjectPointerArraySizeType)
virtual void	RemoveOutput (const DataObjectIdentifierType &key)
virtual void	RemoveOutput (DataObjectPointerArraySizeType idx)
bool	RemoveRequiredInputName (const DataObjectIdentifierType &)
virtual void	RestoreInputReleaseDataFlags ()
virtual void	SetInput (const DataObjectIdentifierType &key, DataObject *input)
virtual void	SetNthInput (DataObjectPointerArraySizeType num, DataObject *input)
virtual void	SetNthOutput (DataObjectPointerArraySizeType num, DataObject *output)
void	SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)
void	SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)
virtual void	SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)
virtual void	SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)
virtual void	SetOutput (const DataObjectIdentifierType &key, DataObject *output)
virtual void	SetPrimaryInput (DataObject *input)
virtual void	SetPrimaryOutput (DataObject *output)
void	SetRequiredInputNames (const NameArray &)
virtual void	VerifyInputInformation ()
virtual void	VerifyPreconditions ()
	~ProcessObject ()
DataObject *	GetInput (const DataObjectIdentifierType &key)
const DataObject *	GetInput (const DataObjectIdentifierType &key) const
DataObject *	GetInput (DataObjectPointerArraySizeType)
const DataObject *	GetInput (DataObjectPointerArraySizeType idx) const
DataObject *	GetPrimaryInput ()
const DataObject *	GetPrimaryInput () const
DataObject *	GetOutput (const DataObjectIdentifierType &key)
const DataObject *	GetOutput (const DataObjectIdentifierType &key) const
DataObject *	GetOutput (DataObjectPointerArraySizeType idx)
const DataObject *	GetOutput (DataObjectPointerArraySizeType idx) const
DataObject *	GetPrimaryOutput ()
const DataObject *	GetPrimaryOutput () const
virtual void	PushBackInput (const DataObject *input)
virtual void	PopBackInput ()
virtual void	PushFrontInput (const DataObject *input)
virtual void	PopFrontInput ()
Protected Member Functions inherited from itk::Object
	Object ()
bool	PrintObservers (std::ostream &os, Indent indent) const
virtual void	SetTimeStamp (const TimeStamp &time)
virtual	~Object ()
Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const
	LightObject ()
virtual void	PrintHeader (std::ostream &os, Indent indent) const
virtual void	PrintTrailer (std::ostream &os, Indent indent) const
virtual	~LightObject ()

Protected Attributes
WeightType	m_Weight

Private Member Functions
	NormalQuadEdgeMeshFilter (const Self &)
void	operator= (const Self &)

Detailed Description

template<class TInputMesh, class TOutputMesh>
class itk::NormalQuadEdgeMeshFilter< TInputMesh, TOutputMesh >

Filter which computes normals to faces and vertices and store it in the output mesh. Normals to face are first computed, then normals to vertices are computed as linear combination of neighbor face normals, i.e.

$n_v = \frac{\sum_{i=0}^{N_f} \omega_i \cdot n_i}{\| \sum_{k=0}^{N_f} \omega_x \cdot n_k\|}$

.

The difference between each method relies in the definition of the weight $\omega_i$ that you can specify by the method SetWeight.

GOURAUD $\omega_i = 1$ [1]
THURMER $\omega_i =$ Angle of the considered triangle at the given vertex} [2]
AREA $\omega_i = Area(t_i)$ [3]

These weights are defined in the literature:

[1] Henri Gouraud. Continuous shading of curved surfaces. IEEE Transaction on Computers, 20(6):623-629, 1971
[2] Shuangshuang Jin, Robert R. Lewis, and David West. A comparison of algorithms for vertex normal computation. The Visual Computer, 21(1-2):71-82, 2005.
[3] Grit Thurmer and Charles A. Wuthrich. Computing vertex normals from polygonal facets. Journal of Graphic Tools, 3(1):43-46, 1998.

Note:: By default the weight is set to the TURMER weight.

Todo:: Fix run-time issues regarding the difference between the Traits of TInputMesh and the one of TOutputMesh. Right now, it only works if TInputMesh::MeshTraits == TOutputMesh::MeshTraits (and of course it requires that the output have some itk::Vector for point data and cell data.

Definition at line 68 of file itkNormalQuadEdgeMeshFilter.h.