#include <edge_se2_lotsofxy.h>

Inheritance diagram for g2o::EdgeSE2LotsOfXY:

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Collaboration diagram for g2o::EdgeSE2LotsOfXY:

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Public Member Functions
	EdgeSE2LotsOfXY ()

void	setDimension (int dimension_)

void	setSize (int vertices)

virtual void	computeError ()

virtual bool	read (std::istream &is)
	read the vertex from a stream, i.e., the internal state of the vertex More...

virtual bool	write (std::ostream &os) const
	write the vertex to a stream More...

virtual bool	setMeasurementFromState ()

virtual void	initialEstimate (const OptimizableGraph::VertexSet &, OptimizableGraph::Vertex *)

virtual double	initialEstimatePossible (const OptimizableGraph::VertexSet &, OptimizableGraph::Vertex *)

virtual void	linearizeOplus ()

Public Member Functions inherited from g2o::BaseMultiEdge<-1, VectorXD >
	BaseMultiEdge ()

virtual void	linearizeOplus (JacobianWorkspace &jacobianWorkspace)

virtual void	resize (size_t size)

virtual bool	allVerticesFixed () const

virtual void	constructQuadraticForm ()

virtual void	mapHessianMemory (double *d, int i, int j, bool rowMajor)

Public Member Functions inherited from g2o::BaseEdge< D, VectorXD >
	BaseEdge ()

virtual	~BaseEdge ()

virtual double	chi2 () const
	computes the chi2 based on the cached error value, only valid after computeError has been called. More...

virtual const double *	errorData () const
	returns the error vector cached after calling the computeError; More...

virtual double *	errorData ()

const ErrorVector &	error () const

ErrorVector &	error ()

EIGEN_STRONG_INLINE const InformationType &	information () const
	information matrix of the constraint More...

EIGEN_STRONG_INLINE InformationType &	information ()

EIGEN_STRONG_INLINE void	setInformation (const InformationType &information)

virtual const double *	informationData () const
	returns the memory of the information matrix, usable for example with a Eigen::Map<MatrixXD> More...

virtual double *	informationData ()

EIGEN_STRONG_INLINE const Measurement &	measurement () const
	accessor functions for the measurement represented by the edge More...

virtual void	setMeasurement (const Measurement &m)

virtual int	rank () const

Public Member Functions inherited from g2o::OptimizableGraph::Edge
	Edge ()

virtual	~Edge ()

virtual Edge *	clone () const

virtual bool	setMeasurementData (const double *m)

virtual bool	getMeasurementData (double *m) const

virtual int	measurementDimension () const

RobustKernel *	robustKernel () const
	if NOT NULL, error of this edge will be robustifed with the kernel More...

void	setRobustKernel (RobustKernel *ptr)

int	level () const
	returns the level of the edge More...

void	setLevel (int l)
	sets the level of the edge More...

int	dimension () const
	returns the dimensions of the error function More...

	G2O_ATTRIBUTE_DEPRECATED (virtual Vertex *createFrom())

	G2O_ATTRIBUTE_DEPRECATED (virtual Vertex *createTo())

virtual Vertex *	createVertex (int)

long long	internalId () const
	the internal ID of the edge More...

OptimizableGraph *	graph ()

const OptimizableGraph *	graph () const

bool	setParameterId (int argNum, int paramId)

const Parameter *	parameter (int argNo) const

size_t	numParameters () const

void	resizeParameters (size_t newSize)

Public Member Functions inherited from g2o::HyperGraph::Edge
	Edge (int id=InvalidId)
	creates and empty edge with no vertices More...

const VertexContainer &	vertices () const

VertexContainer &	vertices ()

const Vertex *	vertex (size_t i) const

Vertex *	vertex (size_t i)

void	setVertex (size_t i, Vertex *v)

int	id () const

void	setId (int id)

virtual HyperGraphElementType	elementType () const

int	numUndefinedVertices () const

Public Member Functions inherited from g2o::HyperGraph::HyperGraphElement
virtual	~HyperGraphElement ()

HyperGraphElement *	clone () const

Public Member Functions inherited from g2o::HyperGraph::DataContainer
	DataContainer ()

virtual	~DataContainer ()

const Data *	userData () const
	the user data associated with this vertex More...

Data *	userData ()

void	setUserData (Data *obs)

void	addUserData (Data *obs)

Public Attributes
	EIGEN_MAKE_ALIGNED_OPERATOR_NEW

Protected Attributes
unsigned int	_observedPoints

Protected Attributes inherited from g2o::BaseMultiEdge<-1, VectorXD >
std::vector< HessianHelper >	_hessian

std::vector< JacobianType, Eigen::aligned_allocator< JacobianType > >	_jacobianOplus
	jacobians of the edge (w.r.t. oplus) More...

Protected Attributes inherited from g2o::BaseEdge< D, VectorXD >
Measurement	_measurement

InformationType	_information

ErrorVector	_error

Protected Attributes inherited from g2o::OptimizableGraph::Edge
int	_dimension

int	_level

RobustKernel *	_robustKernel

long long	_internalId

std::vector< int >	_cacheIds

std::vector< std::string >	_parameterTypes

std::vector< Parameter ** >	_parameters

std::vector< int >	_parameterIds

Protected Attributes inherited from g2o::HyperGraph::Edge
VertexContainer	_vertices

int	_id
	unique id More...

Protected Attributes inherited from g2o::HyperGraph::DataContainer
Data *	_userData

Additional Inherited Members
Public Types inherited from g2o::BaseMultiEdge<-1, VectorXD >
typedef BaseEdge< D, VectorXD >::Measurement	Measurement

typedef MatrixXD::MapType	JacobianType

typedef BaseEdge< D, VectorXD >::ErrorVector	ErrorVector

typedef BaseEdge< D, VectorXD >::InformationType	InformationType

typedef Eigen::Map< MatrixXD, MatrixXD::Flags &Eigen::AlignedBit?Eigen::Aligned:Eigen::Unaligned >	HessianBlockType

Public Types inherited from g2o::BaseEdge< D, VectorXD >
typedef VectorXD	Measurement

typedef Eigen::Matrix< double, D, 1, Eigen::ColMajor >	ErrorVector

typedef Eigen::Matrix< double, D, D, Eigen::ColMajor >	InformationType

Static Public Attributes inherited from g2o::BaseMultiEdge<-1, VectorXD >
static const int	Dimension

Static Public Attributes inherited from g2o::BaseEdge< D, VectorXD >
static const int	Dimension

Protected Member Functions inherited from g2o::BaseMultiEdge<-1, VectorXD >
void	computeQuadraticForm (const InformationType &omega, const ErrorVector &weightedError)

Protected Member Functions inherited from g2o::BaseEdge< D, VectorXD >
InformationType	robustInformation (const Vector3D &rho)

Protected Member Functions inherited from g2o::OptimizableGraph::Edge
template<typename ParameterType >
bool	installParameter (ParameterType *&p, size_t argNo, int paramId=-1)

template<typename CacheType >
void	resolveCache (CacheType &cache, OptimizableGraph::Vertex , const std::string &_type, const ParameterVector &parameters)

bool	resolveParameters ()

virtual bool	resolveCaches ()

Detailed Description

Definition at line 12 of file edge_se2_lotsofxy.h.

Constructor & Destructor Documentation

g2o::EdgeSE2LotsOfXY::EdgeSE2LotsOfXY ( )

Definition at line 10 of file edge_se2_lotsofxy.cpp.

References g2o::BaseMultiEdge<-1, VectorXD >::resize().

                                    : BaseMultiEdge<-1,VectorXD>(){
     resize(0);
   }

Member Function Documentation

void g2o::EdgeSE2LotsOfXY::computeError ( )

virtual

Implements g2o::OptimizableGraph::Edge.

Definition at line 14 of file edge_se2_lotsofxy.cpp.

References g2o::BaseEdge< D, VectorXD >::_error, g2o::BaseEdge< D, VectorXD >::_measurement, _observedPoints, g2o::HyperGraph::Edge::_vertices, g2o::BaseVertex< D, T >::estimate(), and g2o::SE2::inverse().

                                     {
     VertexSE2 * pose = static_cast<VertexSE2 *> (_vertices[0]);
 
     for(unsigned int i=0; i<_observedPoints; i++){
       VertexPointXY * xy = static_cast<VertexPointXY *> (_vertices[1+i]);
       Vector2D m = pose->estimate().inverse() * xy->estimate();
 
       unsigned int index = 2*i;
       _error[index] = m[0] - _measurement[index];
       _error[index+1] = m[1] - _measurement[index+1];
     }
   }

void g2o::EdgeSE2LotsOfXY::initialEstimate	(	const OptimizableGraph::VertexSet &	,
		OptimizableGraph::Vertex *
	)

virtual

set the estimate of the to vertex, based on the estimate of the from vertices in the edge.

Reimplemented from g2o::BaseEdge< D, VectorXD >.

Definition at line 121 of file edge_se2_lotsofxy.cpp.

References g2o::BaseEdge< D, VectorXD >::_measurement, _observedPoints, g2o::HyperGraph::Edge::_vertices, g2o::BaseVertex< D, T >::estimate(), g2o::HyperGraph::Vertex::id(), initialEstimatePossible(), and g2o::BaseVertex< D, T >::setEstimate().

                                                                                                                  {
     (void) toEstimate;
 
     assert(initialEstimatePossible(fixed, toEstimate) && "Bad vertices specified");
 
     VertexSE2 * pose = static_cast<VertexSE2 *>(_vertices[0]);
 
 #ifdef _MSC_VER
         std::vector<bool> estimate_this(_observedPoints, true);
 #else
     bool estimate_this[_observedPoints];
     for(unsigned int i=0; i<_observedPoints; i++){
       estimate_this[i] = true;
     }
 #endif
 
     for(std::set<HyperGraph::Vertex*>::iterator it=fixed.begin(); it!=fixed.end(); it++){
       for(unsigned int i=1; i<_vertices.size(); i++){
         VertexPointXY * vert = static_cast<VertexPointXY *>(_vertices[i]);
         if(vert->id() == (*it)->id()) estimate_this[i-1] = false;
       }
     }
 
     for(unsigned int i=1; i<_vertices.size(); i++){
       if(estimate_this[i-1]){
         unsigned int index = 2*(i-1);
         Vector2D submeas(_measurement[index], _measurement[index+1]);
         VertexPointXY * vert = static_cast<VertexPointXY *>(_vertices[i]);
         vert->setEstimate(pose->estimate() * submeas);
       }
     }
   }

double g2o::EdgeSE2LotsOfXY::initialEstimatePossible	(	const OptimizableGraph::VertexSet &	from,
		OptimizableGraph::Vertex *	to
	)

virtual

override in your class if it's possible to initialize the vertices in certain combinations. The return value may correspond to the cost for initiliaizng the vertex but should be positive if the initialization is possible and negative if not possible.

Reimplemented from g2o::OptimizableGraph::Edge.

Definition at line 155 of file edge_se2_lotsofxy.cpp.

References g2o::HyperGraph::Edge::_vertices.

Referenced by initialEstimate().

                                                                                                                            {
     (void) toEstimate;
 
     for(std::set<HyperGraph::Vertex *>::iterator it=fixed.begin(); it!=fixed.end(); it++){
       if(_vertices[0]->id() == (*it)->id()){
         return 1.0;
       }
     }
 
     return -1.0;
   }

void g2o::EdgeSE2LotsOfXY::linearizeOplus ( )

virtual

Linearizes the oplus operator in the vertex, and stores the result in temporary variable vector _jacobianOplus

Reimplemented from g2o::BaseMultiEdge<-1, VectorXD >.

Definition at line 75 of file edge_se2_lotsofxy.cpp.

References g2o::BaseMultiEdge<-1, VectorXD >::_jacobianOplus, g2o::HyperGraph::Edge::_vertices, g2o::BaseVertex< D, T >::estimate(), g2o::SE2::rotation(), and g2o::SE2::translation().

                                       {
     const VertexSE2* vi     = static_cast<const VertexSE2*>(_vertices[0]);
     const double& x1        = vi->estimate().translation()[0];
     const double& y1        = vi->estimate().translation()[1];
     const double& th1       = vi->estimate().rotation().angle();
 
     double ct = cos(th1) ;
     double st = sin(th1) ;
 
     MatrixXD Ji;
     unsigned int rows = 2*(_vertices.size()-1);
     Ji.resize(rows, 3);
     Ji.fill(0);
 
     Matrix2D poseRot;   // inverse of the rotation matrix associated to the pose
     poseRot <<   ct , st ,
             -st , ct ;
 
     Matrix2D minusPoseRot = -poseRot;
 
 
     for(unsigned int i=1; i<_vertices.size(); i++){
       g2o::VertexPointXY * point = (g2o::VertexPointXY *) (_vertices[i]);
 
       const double& x2        = point->estimate()[0];
       const double& y2        = point->estimate()[1];
 
       unsigned int index = 2*(i-1);
 
       Ji.block<2,2>(index,0) = minusPoseRot;
 
       Ji(index,2) = ct * (y2-y1) + st * (x1 - x2);
       Ji(index+1,2) = st * (y1-y2) + ct * (x1 - x2);
 
 
       MatrixXD Jj;
       Jj.resize(rows, 2);
       Jj.fill(0);
       Jj.block<2,2>(index, 0) = poseRot;
 
       _jacobianOplus[i] = Jj;
     }
     _jacobianOplus[0] = Ji;
   }

bool g2o::EdgeSE2LotsOfXY::read ( std::istream & is )

virtual

read the vertex from a stream, i.e., the internal state of the vertex

Implements g2o::OptimizableGraph::Edge.

Definition at line 27 of file edge_se2_lotsofxy.cpp.

References g2o::BaseEdge< D, VectorXD >::_measurement, _observedPoints, g2o::BaseEdge< D, VectorXD >::information(), and setSize().

                                           {
     is >> _observedPoints;
     setSize(_observedPoints + 1);
 
     // read the measurements
     for(unsigned int i=0; i<_observedPoints; i++){
       unsigned int index = 2*i;
       is >> _measurement[index] >> _measurement[index+1];
     }
 
     // read the information matrix
     for(unsigned int i=0; i<_observedPoints*2; i++){
       // fill the "upper triangle" part of the matrix
       for(unsigned int j=i; j<_observedPoints*2; j++){
         is >> information()(i,j);
       }
 
       // fill the lower triangle part
       for(unsigned int j=0; j<i; j++){
         information()(i,j) = information()(j,i);
       }
 
     }
 
     return true;
   }

void g2o::EdgeSE2LotsOfXY::setDimension ( int dimension_ )

inline

Definition at line 21 of file edge_se2_lotsofxy.h.

       {
         _dimension = dimension_;
         _information.resize(dimension_, dimension_);
         _error.resize(dimension_, 1);
         _measurement.resize(dimension_, 1);
       }

bool g2o::EdgeSE2LotsOfXY::setMeasurementFromState ( )

virtual

sets the estimate to have a zero error, based on the current value of the state variables returns false if not supported.

Reimplemented from g2o::OptimizableGraph::Edge.

Definition at line 168 of file edge_se2_lotsofxy.cpp.

References g2o::BaseEdge< D, VectorXD >::_measurement, _observedPoints, g2o::HyperGraph::Edge::_vertices, g2o::BaseVertex< D, T >::estimate(), and g2o::SE2::inverse().

                                                {
     VertexSE2 * pose = static_cast<VertexSE2 *> (_vertices[0]);
 
     for(unsigned int i=0; i<_observedPoints; i++){
       VertexPointXY * xy = static_cast<VertexPointXY *> (_vertices[1+i]);
       Vector2D m = pose->estimate().inverse() * xy->estimate();
 
       unsigned int index = 2*i;
       _measurement[index] = m[0];
       _measurement[index+1] = m[1];
     }
 
     return true;
   }

void g2o::EdgeSE2LotsOfXY::setSize ( int vertices )

inline

Definition at line 29 of file edge_se2_lotsofxy.h.

Referenced by read().

       {
         resize(vertices);
         _observedPoints = vertices-1;
         setDimension(_observedPoints*2);
       }

bool g2o::EdgeSE2LotsOfXY::write ( std::ostream & os ) const

virtual

write the vertex to a stream

Implements g2o::OptimizableGraph::Edge.

Definition at line 54 of file edge_se2_lotsofxy.cpp.

References g2o::BaseEdge< D, VectorXD >::_measurement, _observedPoints, and g2o::BaseEdge< D, VectorXD >::information().

                                                  {
     // write number of observed points
     os << "|| " << _observedPoints;
 
     // write measurements
     for(unsigned int i=0; i<_observedPoints; i++){
       unsigned int index = 2*i;
       os << " " << _measurement[index] << " " << _measurement[index+1];
     }
 
     // write information matrix
     for(unsigned int i=0; i<_observedPoints*2; i++){
       for(unsigned int j=i; j<_observedPoints*2; j++){
         os << " " << information()(i,j);
       }
     }
 
     return os.good();
   }

Member Data Documentation

unsigned int g2o::EdgeSE2LotsOfXY::_observedPoints

protected

Definition at line 15 of file edge_se2_lotsofxy.h.

Referenced by computeError(), initialEstimate(), read(), setMeasurementFromState(), and write().

g2o::EdgeSE2LotsOfXY::EIGEN_MAKE_ALIGNED_OPERATOR_NEW

Definition at line 18 of file edge_se2_lotsofxy.h.

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

/home/xuezhisd/CLionProjects/g2o/g2o/types/slam2d/edge_se2_lotsofxy.h
/home/xuezhisd/CLionProjects/g2o/g2o/types/slam2d/edge_se2_lotsofxy.cpp

Public Member Functions

Public Attributes

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation