GTSAM  4.0.2
C++ library for smoothing and mapping (SAM)
Public Types | Protected Member Functions | Protected Attributes | List of all members
gtsam::SymbolicBayesNet Class Reference

#include <SymbolicBayesNet.h>

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Public Types

typedef BayesNet< SymbolicConditionalBase
 
typedef SymbolicBayesNet This
 
typedef SymbolicConditional ConditionalType
 
typedef std::shared_ptr< Thisshared_ptr
 
typedef std::shared_ptr< ConditionalTypesharedConditional
 
typedef SymbolicConditional FactorType
 factor type
 
typedef std::shared_ptr< SymbolicConditionalsharedFactor
 Shared pointer to a factor.
 
typedef sharedFactor value_type
 
typedef FastVector< sharedFactor >::iterator iterator
 
typedef FastVector< sharedFactor >::const_iterator const_iterator
 

Public Member Functions

Standard Constructors
 SymbolicBayesNet ()
 
template<typename ITERATOR >
 SymbolicBayesNet (ITERATOR firstConditional, ITERATOR lastConditional)
 
template<class CONTAINER >
 SymbolicBayesNet (const CONTAINER &conditionals)
 
template<class DERIVEDCONDITIONAL >
 SymbolicBayesNet (const FactorGraph< DERIVEDCONDITIONAL > &graph)
 
 SymbolicBayesNet (std::initializer_list< std::shared_ptr< SymbolicConditional >> conditionals)
 
 SymbolicBayesNet (SymbolicConditional &&c)
 Construct from a single conditional.
 
SymbolicBayesNetoperator() (SymbolicConditional &&c)
 Add a single conditional and return a reference. This allows for chaining, e.g., SymbolicBayesNet bn = SymbolicBayesNet(SymbolicConditional(...))(SymbolicConditional(...));.
 
Testable
GTSAM_EXPORT bool equals (const This &bn, double tol=1e-9) const
 
GTSAM_EXPORT void print (const std::string &s="SymbolicBayesNet", const KeyFormatter &formatter=DefaultKeyFormatter) const override
 print
 
Graph Display
void dot (std::ostream &os, const KeyFormatter &keyFormatter=DefaultKeyFormatter, const DotWriter &writer=DotWriter()) const
 Output to graphviz format, stream version.
 
std::string dot (const KeyFormatter &keyFormatter=DefaultKeyFormatter, const DotWriter &writer=DotWriter()) const
 Output to graphviz format string.
 
void saveGraph (const std::string &filename, const KeyFormatter &keyFormatter=DefaultKeyFormatter, const DotWriter &writer=DotWriter()) const
 output to file with graphviz format.
 
HybridValues methods
double logProbability (const HybridValues &x) const
 
double evaluate (const HybridValues &c) const
 
Adding Single Factors
void reserve (size_t size)
 
IsDerived< DERIVEDFACTOR > push_back (std::shared_ptr< DERIVEDFACTOR > factor)
 Add a factor directly using a shared_ptr.
 
IsDerived< DERIVEDFACTOR > push_back (const DERIVEDFACTOR &factor)
 
IsDerived< DERIVEDFACTOR > emplace_shared (Args &&... args)
 Emplace a shared pointer to factor of given type.
 
IsDerived< DERIVEDFACTOR > add (std::shared_ptr< DERIVEDFACTOR > factor)
 add is a synonym for push_back.
 
Adding via iterators
HasDerivedElementType< ITERATOR > push_back (ITERATOR firstFactor, ITERATOR lastFactor)
 
HasDerivedValueType< ITERATOR > push_back (ITERATOR firstFactor, ITERATOR lastFactor)
 Push back many factors with an iterator (factors are copied)
 
Adding via container
HasDerivedElementType< CONTAINER > push_back (const CONTAINER &container)
 
HasDerivedValueType< CONTAINER > push_back (const CONTAINER &container)
 Push back non-pointer objects in a container (factors are copied).
 
void add (const FACTOR_OR_CONTAINER &factorOrContainer)
 
Specialized versions
std::enable_if< std::is_base_of< This, typename CLIQUE::FactorGraphType >::value >::type push_back (const BayesTree< CLIQUE > &bayesTree)
 
FactorIndices add_factors (const CONTAINER &factors, bool useEmptySlots=false)
 
Testable
bool equals (const This &fg, double tol=1e-9) const
 Check equality up to tolerance.
 
Standard Interface
size_t size () const
 
bool empty () const
 
const sharedFactor at (size_t i) const
 
sharedFactorat (size_t i)
 
const sharedFactor operator[] (size_t i) const
 
sharedFactoroperator[] (size_t i)
 
const_iterator begin () const
 
const_iterator end () const
 
sharedFactor front () const
 
sharedFactor back () const
 
double error (const HybridValues &values) const
 
Modifying Factor Graphs (imperative, discouraged)
iterator begin ()
 
iterator end ()
 
virtual void resize (size_t size)
 
void remove (size_t i)
 
void replace (size_t index, sharedFactor factor)
 
iterator erase (iterator item)
 
iterator erase (iterator first, iterator last)
 
Advanced Interface
size_t nrFactors () const
 
KeySet keys () const
 
KeyVector keyVector () const
 
bool exists (size_t idx) const
 

Protected Member Functions

bool isEqual (const FactorGraph &other) const
 Check exact equality of the factor pointers. Useful for derived ==.
 

Protected Attributes

FastVector< sharedFactorfactors_
 

Detailed Description

A SymbolicBayesNet is a Bayes Net of purely symbolic conditionals.

Constructor & Destructor Documentation

◆ SymbolicBayesNet() [1/5]

gtsam::SymbolicBayesNet::SymbolicBayesNet ( )
inline

Construct empty factor graph

◆ SymbolicBayesNet() [2/5]

template<typename ITERATOR >
gtsam::SymbolicBayesNet::SymbolicBayesNet ( ITERATOR  firstConditional,
ITERATOR  lastConditional 
)
inline

Construct from iterator over conditionals

◆ SymbolicBayesNet() [3/5]

template<class CONTAINER >
gtsam::SymbolicBayesNet::SymbolicBayesNet ( const CONTAINER &  conditionals)
inlineexplicit

Construct from container of factors (shared_ptr or plain objects)

◆ SymbolicBayesNet() [4/5]

template<class DERIVEDCONDITIONAL >
gtsam::SymbolicBayesNet::SymbolicBayesNet ( const FactorGraph< DERIVEDCONDITIONAL > &  graph)
inlineexplicit

Implicit copy/downcast constructor to override explicit template container constructor

◆ SymbolicBayesNet() [5/5]

gtsam::SymbolicBayesNet::SymbolicBayesNet ( std::initializer_list< std::shared_ptr< SymbolicConditional >>  conditionals)
inline

Constructor that takes an initializer list of shared pointers. SymbolicBayesNet bn = {make_shared<SymbolicConditional>(), ...};

Member Function Documentation

◆ add()

void gtsam::FactorGraph< SymbolicConditional >::add ( const FACTOR_OR_CONTAINER &  factorOrContainer)
inlineinherited

Add a factor or container of factors, including STL collections, BayesTrees, etc.

◆ add_factors()

FactorIndices gtsam::FactorGraph< SymbolicConditional >::add_factors ( const CONTAINER &  factors,
bool  useEmptySlots = false 
)
inherited

Add new factors to a factor graph and returns a list of new factor indices, optionally finding and reusing empty factor slots.

◆ at() [1/2]

const sharedFactor gtsam::FactorGraph< SymbolicConditional >::at ( size_t  i) const
inlineinherited

Get a specific factor by index (this checks array bounds and may throw an exception, as opposed to operator[] which does not).

◆ at() [2/2]

sharedFactor& gtsam::FactorGraph< SymbolicConditional >::at ( size_t  i)
inlineinherited

Get a specific factor by index (this checks array bounds and may throw an exception, as opposed to operator[] which does not).

◆ back()

sharedFactor gtsam::FactorGraph< SymbolicConditional >::back ( ) const
inlineinherited

Get the last factor

◆ begin() [1/2]

const_iterator gtsam::FactorGraph< SymbolicConditional >::begin ( ) const
inlineinherited

Iterator to beginning of factors.

◆ begin() [2/2]

iterator gtsam::FactorGraph< SymbolicConditional >::begin ( )
inlineinherited

non-const STL-style begin()

◆ empty()

bool gtsam::FactorGraph< SymbolicConditional >::empty ( ) const
inlineinherited

Check if the graph is empty (null factors set by remove() will cause this to return false).

◆ end() [1/2]

const_iterator gtsam::FactorGraph< SymbolicConditional >::end ( ) const
inlineinherited

Iterator to end of factors.

◆ end() [2/2]

iterator gtsam::FactorGraph< SymbolicConditional >::end ( )
inlineinherited

non-const STL-style end()

◆ equals()

GTSAM_EXPORT bool gtsam::SymbolicBayesNet::equals ( const This bn,
double  tol = 1e-9 
) const

Check equality

◆ erase() [1/2]

iterator gtsam::FactorGraph< SymbolicConditional >::erase ( iterator  item)
inlineinherited

Erase factor and rearrange other factors to take up the empty space

◆ erase() [2/2]

iterator gtsam::FactorGraph< SymbolicConditional >::erase ( iterator  first,
iterator  last 
)
inlineinherited

Erase factors and rearrange other factors to take up the empty space

◆ error()

double gtsam::FactorGraph< SymbolicConditional >::error ( const HybridValues values) const
inherited

Add error for all factors.

◆ exists()

bool gtsam::FactorGraph< SymbolicConditional >::exists ( size_t  idx) const
inlineinherited

MATLAB interface utility: Checks whether a factor index idx exists in the graph and is a live pointer

◆ front()

sharedFactor gtsam::FactorGraph< SymbolicConditional >::front ( ) const
inlineinherited

Get the first factor

◆ keys()

KeySet gtsam::FactorGraph< SymbolicConditional >::keys ( ) const
inherited

Potentially slow function to return all keys involved, sorted, as a set

◆ keyVector()

KeyVector gtsam::FactorGraph< SymbolicConditional >::keyVector ( ) const
inherited

Potentially slow function to return all keys involved, sorted, as a vector

◆ nrFactors()

size_t gtsam::FactorGraph< SymbolicConditional >::nrFactors ( ) const
inherited

return the number of non-null factors

◆ operator[]() [1/2]

const sharedFactor gtsam::FactorGraph< SymbolicConditional >::operator[] ( size_t  i) const
inlineinherited

Get a specific factor by index (this does not check array bounds, as opposed to at() which does).

◆ operator[]() [2/2]

sharedFactor& gtsam::FactorGraph< SymbolicConditional >::operator[] ( size_t  i)
inlineinherited

Get a specific factor by index (this does not check array bounds, as opposed to at() which does).

◆ push_back() [1/4]

IsDerived<DERIVEDFACTOR> gtsam::FactorGraph< SymbolicConditional >::push_back ( const DERIVEDFACTOR &  factor)
inlineinherited

Add a factor by value, will be copy-constructed (use push_back with a shared_ptr to avoid the copy).

◆ push_back() [2/4]

HasDerivedElementType<ITERATOR> gtsam::FactorGraph< SymbolicConditional >::push_back ( ITERATOR  firstFactor,
ITERATOR  lastFactor 
)
inlineinherited

Push back many factors with an iterator over shared_ptr (factors are not copied)

◆ push_back() [3/4]

HasDerivedElementType<CONTAINER> gtsam::FactorGraph< SymbolicConditional >::push_back ( const CONTAINER &  container)
inlineinherited

Push back many factors as shared_ptr's in a container (factors are not copied)

◆ push_back() [4/4]

std::enable_if< std::is_base_of<This, typename CLIQUE::FactorGraphType>::value>::type gtsam::FactorGraph< SymbolicConditional >::push_back ( const BayesTree< CLIQUE > &  bayesTree)
inlineinherited

Push back a BayesTree as a collection of factors. NOTE: This should be hidden in derived classes in favor of a type-specialized version that calls this templated function.

◆ remove()

void gtsam::FactorGraph< SymbolicConditional >::remove ( size_t  i)
inlineinherited

delete factor without re-arranging indexes by inserting a nullptr pointer

◆ replace()

void gtsam::FactorGraph< SymbolicConditional >::replace ( size_t  index,
sharedFactor  factor 
)
inlineinherited

replace a factor by index

◆ reserve()

void gtsam::FactorGraph< SymbolicConditional >::reserve ( size_t  size)
inlineinherited

Reserve space for the specified number of factors if you know in advance how many there will be (works like FastVector::reserve).

◆ resize()

virtual void gtsam::FactorGraph< SymbolicConditional >::resize ( size_t  size)
inlinevirtualinherited

Directly resize the number of factors in the graph. If the new size is less than the original, factors at the end will be removed. If the new size is larger than the original, null factors will be appended.

◆ size()

size_t gtsam::FactorGraph< SymbolicConditional >::size ( ) const
inlineinherited

return the number of factors (including any null factors set by remove() ).

Member Data Documentation

◆ factors_

concept check, makes sure FACTOR defines print and equals Collection of factors


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