gtsam  4.1.0
gtsam
gtsam::FrobeniusBetweenFactor< Rot > Class Template Reference

Detailed Description

template<class Rot>
class gtsam::FrobeniusBetweenFactor< Rot >

FrobeniusBetweenFactor is a BetweenFactor that evaluates the Frobenius norm of the rotation error between measured and predicted (rather than the Logmap of the error).

This factor is only defined for fixed-dimension types, and in fact only SO3 and SO4 really work, as we need SO<N>::AdjointMap.

+ Inheritance diagram for gtsam::FrobeniusBetweenFactor< Rot >:

Public Member Functions

Constructor
 FrobeniusBetweenFactor (Key j1, Key j2, const Rot &R12, const SharedNoiseModel &model=nullptr)
 Construct from two keys and measured rotation.
 
Testable
void print (const std::string &s, const KeyFormatter &keyFormatter=DefaultKeyFormatter) const override
 print with optional string
 
bool equals (const NonlinearFactor &expected, double tol=1e-9) const override
 assert equality up to a tolerance
 
NoiseModelFactor2 methods
Vector evaluateError (const Rot &R1, const Rot &R2, boost::optional< Matrix & > H1=boost::none, boost::optional< Matrix & > H2=boost::none) const override
 Error is Frobenius norm between R1*R12 and R2.
 
- Public Member Functions inherited from gtsam::NoiseModelFactor2< Rot, Rot >
 NoiseModelFactor2 ()
 Default Constructor for I/O.
 
 NoiseModelFactor2 (const SharedNoiseModel &noiseModel, Key j1, Key j2)
 Constructor. More...
 
Key key1 () const
 methods to retrieve both keys
 
Key key2 () const
 
Vector unwhitenedError (const Values &x, boost::optional< std::vector< Matrix > & > H=boost::none) const override
 Calls the 2-key specific version of evaluateError, which is pure virtual so must be implemented in the derived class.
 
- Public Member Functions inherited from gtsam::NoiseModelFactor
 NoiseModelFactor ()
 Default constructor for I/O only.
 
virtual ~NoiseModelFactor ()
 Destructor.
 
template<typename CONTAINER >
 NoiseModelFactor (const SharedNoiseModel &noiseModel, const CONTAINER &keys)
 Constructor.
 
size_t dim () const override
 get the dimension of the factor (number of rows on linearization)
 
const SharedNoiseModelnoiseModel () const
 access to the noise model
 
Vector whitenedError (const Values &c) const
 Vector of errors, whitened This is the raw error, i.e., i.e. More...
 
Vector unweightedWhitenedError (const Values &c) const
 Vector of errors, whitened, but unweighted by any loss function.
 
double weight (const Values &c) const
 Compute the effective weight of the factor from the noise model.
 
double error (const Values &c) const override
 Calculate the error of the factor. More...
 
boost::shared_ptr< GaussianFactorlinearize (const Values &x) const override
 Linearize a non-linearFactorN to get a GaussianFactor, \( Ax-b \approx h(x+\delta x)-z = h(x) + A \delta x - z \) Hence \( b = z - h(x) = - \mathtt{error\_vector}(x) \).
 
- Public Member Functions inherited from gtsam::NonlinearFactor
 NonlinearFactor ()
 Default constructor for I/O only.
 
template<typename CONTAINER >
 NonlinearFactor (const CONTAINER &keys)
 Constructor from a collection of the keys involved in this factor.
 
virtual ~NonlinearFactor ()
 Destructor.
 
virtual bool active (const Values &) const
 Checks whether a factor should be used based on a set of values. More...
 
virtual shared_ptr clone () const
 Creates a shared_ptr clone of the factor - needs to be specialized to allow for subclasses. More...
 
shared_ptr rekey (const std::map< Key, Key > &rekey_mapping) const
 Creates a shared_ptr clone of the factor with different keys using a map from old->new keys.
 
shared_ptr rekey (const KeyVector &new_keys) const
 Clones a factor and fully replaces its keys. More...
 
- Public Member Functions inherited from gtsam::Factor
Key front () const
 First key.
 
Key back () const
 Last key.
 
const_iterator find (Key key) const
 find
 
const KeyVectorkeys () const
 Access the factor's involved variable keys.
 
const_iterator begin () const
 Iterator at beginning of involved variable keys.
 
const_iterator end () const
 Iterator at end of involved variable keys.
 
size_t size () const
 
void print (const std::string &s="Factor", const KeyFormatter &formatter=DefaultKeyFormatter) const
 print
 
void printKeys (const std::string &s="Factor", const KeyFormatter &formatter=DefaultKeyFormatter) const
 print only keys
 
KeyVectorkeys ()
 
iterator begin ()
 Iterator at beginning of involved variable keys.
 
iterator end ()
 Iterator at end of involved variable keys.
 

Additional Inherited Members

- Public Types inherited from gtsam::NoiseModelFactor2< Rot, Rot >
typedef Rot X1
 
typedef Rot X2
 
- Public Types inherited from gtsam::NoiseModelFactor
typedef boost::shared_ptr< Thisshared_ptr
 Noise model.
 
- Public Types inherited from gtsam::NonlinearFactor
typedef boost::shared_ptr< Thisshared_ptr
 
- Public Types inherited from gtsam::Factor
typedef KeyVector::iterator iterator
 Iterator over keys.
 
typedef KeyVector::const_iterator const_iterator
 Const iterator over keys.
 
- Protected Types inherited from gtsam::NoiseModelFactor2< Rot, Rot >
typedef NoiseModelFactor Base
 
typedef NoiseModelFactor2< Rot, Rot > This
 
- Protected Types inherited from gtsam::NoiseModelFactor
typedef NonlinearFactor Base
 
typedef NoiseModelFactor This
 
- Protected Types inherited from gtsam::NonlinearFactor
typedef Factor Base
 
typedef NonlinearFactor This
 
- Protected Member Functions inherited from gtsam::NoiseModelFactor
 NoiseModelFactor (const SharedNoiseModel &noiseModel)
 Constructor - only for subclasses, as this does not set keys.
 
- Protected Member Functions inherited from gtsam::Factor
 Factor ()
 Default constructor for I/O.
 
template<typename CONTAINER >
 Factor (const CONTAINER &keys)
 Construct factor from container of keys. More...
 
template<typename ITERATOR >
 Factor (ITERATOR first, ITERATOR last)
 Construct factor from iterator keys. More...
 
bool equals (const This &other, double tol=1e-9) const
 check equality
 
- Static Protected Member Functions inherited from gtsam::Factor
template<typename CONTAINER >
static Factor FromKeys (const CONTAINER &keys)
 Construct factor from container of keys. More...
 
template<typename ITERATOR >
static Factor FromIterators (ITERATOR first, ITERATOR last)
 Construct factor from iterator keys. More...
 
- Protected Attributes inherited from gtsam::NoiseModelFactor
SharedNoiseModel noiseModel_
 
- Protected Attributes inherited from gtsam::Factor
KeyVector keys_
 The keys involved in this factor.
 

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