gtsam 4.2
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gtsam::EqualityFactorGraph Class Reference

Detailed Description

Collection of all Linear Equality constraints Ax=b of a Programming problem as a Factor Graph.

Inheritance diagram for gtsam::EqualityFactorGraph:

Public Member Functions

template<class... Args>
void add (Args &&... args)
 Add a linear inequality, forwards arguments to LinearInequality.
double error (const VectorValues &x) const
 Compute error of a guess.
Public Member Functions inherited from gtsam::FactorGraph< LinearEquality >
virtual ~FactorGraph ()=default
 Default destructor Public and virtual so boost serialization can call it.
void reserve (size_t size)
 Reserve space for the specified number of factors if you know in advance how many there will be (works like FastVector::reserve).
IsDerived< DERIVEDFACTOR > push_back (boost::shared_ptr< DERIVEDFACTOR > factor)
 Add a factor directly using a shared_ptr.
IsDerived< DERIVEDFACTOR > emplace_shared (Args &&... args)
 Emplace a shared pointer to factor of given type.
IsDerived< DERIVEDFACTOR > add (boost::shared_ptr< DERIVEDFACTOR > factor)
 add is a synonym for push_back.
std::enable_if< std::is_base_of< FactorType, DERIVEDFACTOR >::value, boost::assign::list_inserter< RefCallPushBack< This > > >::type operator+= (boost::shared_ptr< DERIVEDFACTOR > factor)
 += works well with boost::assign list inserter.
FactorIndices add_factors (const CONTAINER &factors, bool useEmptySlots=false)
 Add new factors to a factor graph and returns a list of new factor indices, optionally finding and reusing empty factor slots.
virtual void print (const std::string &s="FactorGraph", const KeyFormatter &formatter=DefaultKeyFormatter) const
 Print out graph to std::cout, with optional key formatter.
bool equals (const This &fg, double tol=1e-9) const
 Check equality up to tolerance.
size_t size () const
 return the number of factors (including any null factors set by remove() ).
bool empty () const
 Check if the graph is empty (null factors set by remove() will cause this to return false).
const sharedFactor at (size_t i) const
 Get a specific factor by index (this checks array bounds and may throw an exception, as opposed to operator[] which does not).
const sharedFactor operator[] (size_t i) const
 Get a specific factor by index (this does not check array bounds, as opposed to at() which does).
const_iterator begin () const
 Iterator to beginning of factors.
const_iterator end () const
 Iterator to end of factors.
sharedFactor front () const
 Get the first factor.
sharedFactor back () const
 Get the last factor.
double error (const HybridValues &values) const
 Add error for all factors.
virtual void resize (size_t size)
 Directly resize the number of factors in the graph.
void remove (size_t i)
 delete factor without re-arranging indexes by inserting a nullptr pointer
void replace (size_t index, sharedFactor factor)
 replace a factor by index
iterator erase (iterator item)
 Erase factor and rearrange other factors to take up the empty space.
void dot (std::ostream &os, const KeyFormatter &keyFormatter=DefaultKeyFormatter, const DotWriter &writer=DotWriter()) const
 Output to graphviz format, stream version.
void saveGraph (const std::string &filename, const KeyFormatter &keyFormatter=DefaultKeyFormatter, const DotWriter &writer=DotWriter()) const
 output to file with graphviz format.
size_t nrFactors () const
 return the number of non-null factors
KeySet keys () const
 Potentially slow function to return all keys involved, sorted, as a set.
KeyVector keyVector () const
 Potentially slow function to return all keys involved, sorted, as a vector.
bool exists (size_t idx) const
 MATLAB interface utility: Checks whether a factor index idx exists in the graph and is a live pointer.

Public Types

typedef boost::shared_ptr< EqualityFactorGraphshared_ptr
Public Types inherited from gtsam::FactorGraph< LinearEquality >
typedef LinearEquality FactorType
 factor type
typedef boost::shared_ptr< LinearEqualitysharedFactor
 Shared pointer to a factor.
typedef sharedFactor value_type
typedef FastVector< sharedFactor >::iterator iterator
typedef FastVector< sharedFactor >::const_iterator const_iterator

Additional Inherited Members

Protected Member Functions inherited from gtsam::FactorGraph< LinearEquality >
bool isEqual (const FactorGraph &other) const
 Check exact equality of the factor pointers. Useful for derived ==.
 FactorGraph ()
 Default constructor.
Protected Attributes inherited from gtsam::FactorGraph< LinearEquality >
FastVector< sharedFactorfactors_
 concept check, makes sure FACTOR defines print and equals

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