Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
mirtk::InternalForce Class Reference

#include <InternalForce.h>

Inheritance diagram for mirtk::InternalForce:
Inheritance graph
Collaboration diagram for mirtk::InternalForce:
Collaboration graph

Public Member Functions

virtual ParameterList Parameter () const
 Get parameter key/value as string map.
 
virtual ~InternalForce ()
 Destructor.
 
- Public Member Functions inherited from mirtk::PointSetForce
virtual void Initialize ()
 Initialize force term once input and parameters have been set.
 
virtual void Reinitialize ()
 
virtual void Update (bool=true)
 Update moving input points and internal state of force term.
 
virtual void WriteDataSets (const char *, const char *, bool=true) const
 Write input of force term.
 
virtual void WriteGradient (const char *, const char *) const
 Write gradient of force term.
 
virtual ~PointSetForce ()
 Destructor.
 
- Public Member Functions inherited from mirtk::EnergyTerm
virtual enum EnergyMeasure EnergyMeasure () const =0
 Energy measure implemented by this term.
 
void Gradient (double *gradient, double step)
 
virtual void GradientStep (const double *gradient, double &min, double &max) const
 
double InitialValue ()
 Returns initial value of energy term.
 
void NormalizedGradient (double *gradient, double step)
 
string Prefix (const char *=NULL) const
 Prefix to be used for debug output files.
 
virtual void Print (Indent=0) const
 Print debug information.
 
virtual double RawValue (double) const
 
double RawValue ()
 
void ResetInitialValue ()
 Reset initial value of energy term.
 
void ResetValue ()
 Reset cached value of energy term.
 
virtual bool Upgrade ()
 Update energy term after convergence.
 
double Value ()
 Evaluate energy term.
 
virtual ~EnergyTerm ()
 Destructor.
 
- Public Member Functions inherited from mirtk::Configurable
string DefaultName () const
 
virtual bool Set (const char *, const char *)
 Set parameter value from string.
 
virtual ~Configurable ()
 Destructor.
 
- Public Member Functions inherited from mirtk::Observable
void AddObserver (Observer &)
 Add observer.
 
void Broadcast (Event, const void *=NULL)
 Broadcast event to observers.
 
void ClearObservers ()
 Delete all observers.
 
void DeleteObserver (Observer &)
 Delete observer.
 
void NotifyObservers (Event, const void *=NULL)
 Notify all observers about given event if this object has changed.
 
int NumberOfObservers () const
 Number of current observers.
 
virtual ~Observable ()
 Destructor.
 
- Public Member Functions inherited from mirtk::Object
virtual const char * NameOfClass () const =0
 Get name of class, which this object is an instance of.
 
bool Parameter (const ParameterList &)
 Set parameters from name/value pairs.
 
virtual ~Object ()
 Destructor.
 

Static Public Member Functions

static InternalForceNew (InternalForceTerm, const char *="", double=1.0)
 Instantiate new constraint representing specified internal forces.
 
- Static Public Member Functions inherited from mirtk::EnergyTerm
static FactoryTypeFactory ()
 Get global energy term factory instance.
 
static EnergyTermNew (EnergyMeasure, const char *="", double=1.0)
 Construct new energy term.
 
static EnergyTermTryNew (EnergyMeasure, const char *="", double=1.0)
 Construct new energy term or return nullptr if term not available.
 
- Static Public Member Functions inherited from mirtk::Object
static const char * NameOfType ()
 Get name of this class type.
 

Protected Member Functions

virtual void EvaluateGradient (double *gradient, double step, double weight)
 
vtkDataArray * ExternalMagnitude () const
 Get magnitude array of external force term.
 
 InternalForce (const char *="", double=1.0)
 Constructor.
 
 InternalForce (const InternalForce &)
 Copy constructor.
 
InternalForceoperator= (const InternalForce &)
 Assignment operator.
 
virtual bool SetWithoutPrefix (const char *, const char *)
 Set parameter value from string.
 
- Protected Member Functions inherited from mirtk::PointSetForce
void AddPointData (const char *name, vtkSmartPointer< vtkDataArray > &data, bool global=false)
 
vtkDataArray * AddPointData (const char *name, int c=1, int type=VTK_FLOAT, bool global=false)
 
void AllocateCount (int)
 Allocate _Count memory.
 
void AllocateGradient (int)
 Allocate memory for (non-parametric) gradient.
 
void CopyAttributes (const PointSetForce &)
 Copy attributes of this class from another instance.
 
vtkPointSet * DeformedPointSet () const
 Get point set on which this force is acting on.
 
vtkPolyData * DeformedSurface () const
 Get point set on which this force is acting on.
 
const EdgeTableEdges () const
 Get edge table of point set mesh.
 
vtkSmartPointer< vtkPoints > GetInitialPoints () const
 Get initial points, possibly pre-transformed by global transformation.
 
void Init ()
 Common (re-)initialization steps of this class only (non-virtual function!)
 
vtkDataArray * InitialStatus () const
 Get initial point status array.
 
 mirtkAggregateMacro (int, Count)
 
 mirtkAttributeMacro (int, GradientSize)
 Size of gradient vector.
 
 mirtkAttributeMacro (int, CountSize)
 Size of count vector.
 
 mirtkAttributeMacro (bool, InitialUpdate)
 Whether Update has not been called since initialization.
 
 mirtkComponentMacro (GradientType, Gradient)
 Negative node forces/gradient of external force term.
 
 mirtkPublicAggregateMacro (RegisteredPointSet, PointSet)
 Transformed point set.
 
 mirtkPublicAttributeMacro (int, GradientAveraging)
 Number of gradient averaging iterations.
 
 mirtkPublicAttributeMacro (bool, AverageSignedGradients)
 
 mirtkPublicAttributeMacro (bool, AverageGradientMagnitude)
 Whether to only average the magnitude of the gradient vectors.
 
 mirtkReadOnlyAttributeMacro (bool, SurfaceForce)
 
 mirtkReadOnlyAttributeMacro (int, NumberOfPoints)
 Number of points.
 
const NodeNeighborsNeighbors (int=-1) const
 Get edge-connectivity table of point set node neighbors.
 
vtkDataArray * Normals () const
 Get point normals array.
 
PointSetForceoperator= (const PointSetForce &)
 Assignment operator.
 
vtkPointSet * OriginalPointSet () const
 Get point set on which this force is acting on.
 
vtkPolyData * OriginalSurface () const
 Get point set on which this force is acting on.
 
vtkPointData * PointData () const
 Get point data.
 
vtkDataArray * PointData (const char *name, bool optional=false) const
 
vtkPoints * Points () const
 Get points of point set on which this force is acting on.
 
 PointSetForce (const char *="", double=1.0)
 Constructor.
 
 PointSetForce (const PointSetForce &)
 Copy constructor.
 
void RemovePointData (const char *name)
 
SharedPtr< const EdgeTableSharedEdgeTable () const
 Get edge table of point set mesh.
 
vtkDataArray * Status () const
 Get point status array.
 
- Protected Member Functions inherited from mirtk::EnergyTerm
 EnergyTerm (const char *="", double=1.0)
 Constructor.
 
 EnergyTerm (const EnergyTerm &)
 Copy constructor.
 
virtual double Evaluate ()=0
 Evaluate unweighted energy term.
 
EnergyTermoperator= (const EnergyTerm &)
 Assignment operator.
 
virtual bool SetWithPrefix (const char *, const char *)
 Set parameter value from string.
 
- Protected Member Functions inherited from mirtk::Configurable
 Configurable (const char *="")
 Constructor.
 
 Configurable (const Configurable &)
 Copy constructor.
 
string DefaultPrefix () const
 Get default object name prefix (if any)
 
bool HasName () const
 Whether this object has an explicit name.
 
bool HasPrefix () const
 Whether this object has either an explicit name or default prefix.
 
template<class T >
bool InsertWithPrefix (ParameterList &, string, T) const
 Insert parameter into name/value list with object name prefix.
 
bool InsertWithPrefix (ParameterList &, const ParameterList &) const
 Insert parameters into name/value list with object name prefix.
 
Configurableoperator= (const Configurable &)
 Assignment operator.
 
string ParameterNameWithoutPrefix (const char *) const
 Get name of parameter without object name prefix.
 
string ParameterNameWithPrefix (const string &) const
 Get name of parameter with default object name prefix.
 
string ParameterNameWithPrefix (const char *) const
 Get name of parameter with default object name prefix.
 
- Protected Member Functions inherited from mirtk::Observable
 Observable ()
 Default constructor.
 
 Observable (const Observable &)
 Copy constructor.
 
Observableoperator= (const Observable &)
 Assignment operator.
 
- Protected Member Functions inherited from mirtk::Object
template<typename... Args>
void Throw (ErrorType err, const char *func, Args... args) const
 

Additional Inherited Members

- Public Types inherited from mirtk::PointSetForce
typedef RegisteredPointSet::EdgeTable EdgeTable
 Adjacency matrix with edge IDs.
 
typedef Vector3D< double > GradientType
 Type of gradient w.r.t a single transformed data point.
 
typedef RegisteredPointSet::NodeNeighbors NodeNeighbors
 Table of n-connected node neighbors.
 
- Public Types inherited from mirtk::EnergyTerm
typedef ObjectFactory< enum EnergyMeasure, EnergyTermFactoryType
 Type of energy term factory.
 
- Static Protected Member Functions inherited from mirtk::Object
template<typename... Args>
static void ThrowStatic (ErrorType err, const char *cls, const char *func, Args... args)
 

Detailed Description

Base class for a penalty term imposed on a transformed point set

Subclasses represent in particular internal forces on deformable simplicial complexes such as elasticity, strain, curvature, non-self-intersection (i.e. triangle repulsion), and node repulsion.

The penalty is minimized by the registration using an instance of RegistrationEnergy with set data similarity and regularization terms. Higher penalties lead to stronger enforcement of the constraint.

The same force terms can be used in a "non-parametric" DeformableSurfaceModel as internal force terms to regularize the evolution of the surface model.

Definition at line 44 of file InternalForce.h.

Member Function Documentation

§ EvaluateGradient()

virtual void mirtk::InternalForce::EvaluateGradient ( double *  gradient,
double  step,
double  weight 
)
protectedvirtual

Evaluate gradient of force term

Parameters
[in,out]gradientGradient to which the computed gradient of the force term is added after multiplying by weight.
[in]stepStep length for finite differences (unused).
[in]weightWeight of force term.

Reimplemented from mirtk::PointSetForce.

Reimplemented in mirtk::MetricDistortion, mirtk::NonSelfIntersectionConstraint, mirtk::RepulsiveForce, mirtk::StretchingForce, mirtk::GaussCurvatureConstraint, mirtk::CurvatureConstraint, mirtk::SpringForce, mirtk::InflationForce, mirtk::QuadraticCurvatureConstraint, mirtk::MeanCurvatureConstraint, mirtk::MaximumCurvatureConstraint, and mirtk::NormalForce.


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