Public Types | Public Member Functions | Protected Types | Protected Member Functions | Protected Attributes | List of all members
gtsam::PendulumFactorPk1 Class Reference

#include <Pendulum.h>

Inheritance diagram for gtsam::PendulumFactorPk1:
Inheritance graph
[legend]

Public Types

typedef boost::shared_ptr< PendulumFactorPk1shared_ptr
 in [0,1], define the mid-point between [q_k,q_{k+1}] for approximation. The sympletic rule above can be obtained as a special case when alpha = 0. More...
 
- Public Types inherited from gtsam::NoiseModelFactor3< double, double, double >
typedef double X1
 
typedef double X2
 
typedef double X3
 
- Public Types inherited from gtsam::NoiseModelFactor
typedef boost::shared_ptr< Thisshared_ptr
 
- Public Types inherited from gtsam::NonlinearFactor
typedef boost::shared_ptr< Thisshared_ptr
 
- Public Types inherited from gtsam::Factor
typedef KeyVector::const_iterator const_iterator
 Const iterator over keys. More...
 
typedef KeyVector::iterator iterator
 Iterator over keys. More...
 

Public Member Functions

gtsam::NonlinearFactor::shared_ptr clone () const override
 
Vector evaluateError (const double &pk1, const double &qk, const double &qk1, boost::optional< Matrix & > H1=boost::none, boost::optional< Matrix & > H2=boost::none, boost::optional< Matrix & > H3=boost::none) const override
 
 PendulumFactorPk1 (Key pKey1, Key qKey, Key qKey1, double h, double m=1.0, double r=1.0, double g=9.81, double alpha=0.0, double mu=1000.0)
 Constructor. More...
 
- Public Member Functions inherited from gtsam::NoiseModelFactor3< double, double, double >
Key key1 () const
 
Key key2 () const
 
Key key3 () const
 
 NoiseModelFactor3 ()
 
 NoiseModelFactor3 (const SharedNoiseModel &noiseModel, Key j1, Key j2, Key j3)
 
Vector unwhitenedError (const Values &x, boost::optional< std::vector< Matrix > & > H=boost::none) const override
 
 ~NoiseModelFactor3 () override
 
- Public Member Functions inherited from gtsam::NoiseModelFactor
shared_ptr cloneWithNewNoiseModel (const SharedNoiseModel newNoise) const
 
size_t dim () const override
 
bool equals (const NonlinearFactor &f, double tol=1e-9) const override
 
double error (const Values &c) const override
 
boost::shared_ptr< GaussianFactorlinearize (const Values &x) const override
 
const SharedNoiseModelnoiseModel () const
 access to the noise model More...
 
 NoiseModelFactor ()
 
template<typename CONTAINER >
 NoiseModelFactor (const SharedNoiseModel &noiseModel, const CONTAINER &keys)
 
void print (const std::string &s="", const KeyFormatter &keyFormatter=DefaultKeyFormatter) const override
 
Vector unweightedWhitenedError (const Values &c) const
 
double weight (const Values &c) const
 
Vector whitenedError (const Values &c) const
 
 ~NoiseModelFactor () override
 
- Public Member Functions inherited from gtsam::NonlinearFactor
 NonlinearFactor ()
 
template<typename CONTAINER >
 NonlinearFactor (const CONTAINER &keys)
 
virtual ~NonlinearFactor ()
 
virtual bool active (const Values &) const
 
shared_ptr rekey (const std::map< Key, Key > &rekey_mapping) const
 
shared_ptr rekey (const KeyVector &new_keys) const
 
- Public Member Functions inherited from gtsam::Factor
virtual ~Factor ()=default
 Default destructor. More...
 
Key front () const
 First key. More...
 
Key back () const
 Last key. More...
 
const_iterator find (Key key) const
 find More...
 
const KeyVectorkeys () const
 Access the factor's involved variable keys. More...
 
const_iterator begin () const
 
const_iterator end () const
 
size_t size () const
 
virtual void printKeys (const std::string &s="Factor", const KeyFormatter &formatter=DefaultKeyFormatter) const
 print only keys More...
 
KeyVectorkeys ()
 
iterator begin ()
 
iterator end ()
 

Protected Types

typedef NoiseModelFactor3< double, double, double > Base
 
- Protected Types inherited from gtsam::NoiseModelFactor3< double, double, double >
typedef NoiseModelFactor Base
 
typedef NoiseModelFactor3< double, double, double > 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

 PendulumFactorPk1 ()
 
- Protected Member Functions inherited from gtsam::NoiseModelFactor
 NoiseModelFactor (const SharedNoiseModel &noiseModel)
 
- Protected Member Functions inherited from gtsam::Factor
 Factor ()
 
template<typename CONTAINER >
 Factor (const CONTAINER &keys)
 
template<typename ITERATOR >
 Factor (ITERATOR first, ITERATOR last)
 
bool equals (const This &other, double tol=1e-9) const
 check equality More...
 

Protected Attributes

double alpha_
 gravity More...
 
double g_
 length More...
 
double h_
 
double m_
 time step More...
 
double r_
 mass More...
 
- Protected Attributes inherited from gtsam::NoiseModelFactor
SharedNoiseModel noiseModel_
 
- Protected Attributes inherited from gtsam::Factor
KeyVector keys_
 The keys involved in this factor. More...
 

Additional Inherited Members

- Static Protected Member Functions inherited from gtsam::Factor
template<typename CONTAINER >
static Factor FromKeys (const CONTAINER &keys)
 
template<typename ITERATOR >
static Factor FromIterators (ITERATOR first, ITERATOR last)
 

Detailed Description

This class implements the second position-momentum update rule p_k1 = D_2 L_d(q_k,q_{k+1},h) = {1}{h}mr^{2}(q_{k+1}-q_{k})-mgrh((1-)q_{k}+ q_{k+1}) = (1/h)mr^2 (q_{k+1}-q_k) - mgrh alpha sin ((1-alpha)q_k+ q_{k+1})

Definition at line 172 of file Pendulum.h.

Member Typedef Documentation

typedef NoiseModelFactor3<double, double, double> gtsam::PendulumFactorPk1::Base
protected

Definition at line 176 of file Pendulum.h.

in [0,1], define the mid-point between [q_k,q_{k+1}] for approximation. The sympletic rule above can be obtained as a special case when alpha = 0.

Definition at line 189 of file Pendulum.h.

Constructor & Destructor Documentation

gtsam::PendulumFactorPk1::PendulumFactorPk1 ( )
inlineprotected

default constructor to allow for serialization

Definition at line 179 of file Pendulum.h.

gtsam::PendulumFactorPk1::PendulumFactorPk1 ( Key  pKey1,
Key  qKey,
Key  qKey1,
double  h,
double  m = 1.0,
double  r = 1.0,
double  g = 9.81,
double  alpha = 0.0,
double  mu = 1000.0 
)
inline

Constructor.

Definition at line 192 of file Pendulum.h.

Member Function Documentation

gtsam::NonlinearFactor::shared_ptr gtsam::PendulumFactorPk1::clone ( ) const
inlineoverridevirtual
Returns
a deep copy of this factor

Reimplemented from gtsam::NonlinearFactor.

Definition at line 198 of file Pendulum.h.

Vector gtsam::PendulumFactorPk1::evaluateError ( const double &  pk1,
const double &  qk,
const double &  qk1,
boost::optional< Matrix & >  H1 = boost::none,
boost::optional< Matrix & >  H2 = boost::none,
boost::optional< Matrix & >  H3 = boost::none 
) const
inlineoverridevirtual

1/h mr^2 (qk1-qk) - mgrh a sin((1-a)pk + a*pk1) - pk1 = 0, with optional derivatives

Implements gtsam::NoiseModelFactor3< double, double, double >.

Definition at line 203 of file Pendulum.h.

Member Data Documentation

double gtsam::PendulumFactorPk1::alpha_
protected

gravity

Definition at line 185 of file Pendulum.h.

double gtsam::PendulumFactorPk1::g_
protected

length

Definition at line 184 of file Pendulum.h.

double gtsam::PendulumFactorPk1::h_
protected

Definition at line 181 of file Pendulum.h.

double gtsam::PendulumFactorPk1::m_
protected

time step

Definition at line 182 of file Pendulum.h.

double gtsam::PendulumFactorPk1::r_
protected

mass

Definition at line 183 of file Pendulum.h.


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


gtsam
Author(s):
autogenerated on Sat May 8 2021 02:58:19